./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 21:35:02,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 21:35:02,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 21:35:02,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 21:35:02,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 21:35:02,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 21:35:02,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 21:35:02,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 21:35:02,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 21:35:02,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 21:35:02,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 21:35:02,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 21:35:02,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 21:35:02,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 21:35:02,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 21:35:02,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 21:35:02,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 21:35:02,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 21:35:02,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 21:35:02,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 21:35:02,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 21:35:02,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 21:35:02,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 21:35:02,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 21:35:02,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 21:35:02,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 21:35:02,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 21:35:02,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 21:35:02,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 21:35:02,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 21:35:02,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 21:35:02,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 21:35:02,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 21:35:02,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 21:35:02,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 21:35:02,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 21:35:02,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 21:35:02,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 21:35:02,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 21:35:02,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 21:35:02,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 21:35:02,915 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-02-20 21:35:02,927 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 21:35:02,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 21:35:02,928 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 21:35:02,928 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 21:35:02,929 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 21:35:02,929 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 21:35:02,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 21:35:02,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 21:35:02,930 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 21:35:02,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 21:35:02,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 21:35:02,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 21:35:02,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 21:35:02,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 21:35:02,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 21:35:02,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 21:35:02,931 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 21:35:02,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 21:35:02,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 21:35:02,931 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 21:35:02,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 21:35:02,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 21:35:02,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 21:35:02,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 21:35:02,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 21:35:02,932 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 21:35:02,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 21:35:02,932 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 21:35:02,932 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 21:35:02,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 21:35:02,933 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f [2022-02-20 21:35:03,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 21:35:03,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 21:35:03,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 21:35:03,136 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 21:35:03,137 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 21:35:03,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2022-02-20 21:35:03,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e2d5043/99698cf5c81d4d9ebe7734647972fe35/FLAGfbac2b42d [2022-02-20 21:35:03,801 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 21:35:03,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2022-02-20 21:35:03,842 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e2d5043/99698cf5c81d4d9ebe7734647972fe35/FLAGfbac2b42d [2022-02-20 21:35:04,215 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e2d5043/99698cf5c81d4d9ebe7734647972fe35 [2022-02-20 21:35:04,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 21:35:04,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 21:35:04,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 21:35:04,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 21:35:04,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 21:35:04,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 09:35:04" (1/1) ... [2022-02-20 21:35:04,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bfef422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 09:35:04, skipping insertion in model container [2022-02-20 21:35:04,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 09:35:04" (1/1) ... [2022-02-20 21:35:04,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 21:35:04,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 21:35:05,771 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210] [2022-02-20 21:35:05,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 21:35:05,856 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 21:35:06,171 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210] [2022-02-20 21:35:06,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 21:35:06,233 INFO L208 MainTranslator]: Completed translation [2022-02-20 21:35:06,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 09:35:06 WrapperNode [2022-02-20 21:35:06,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 21:35:06,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 21:35:06,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 21:35:06,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 21:35:06,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 09:35:06" (1/1) ... [2022-02-20 21:35:06,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 09:35:06" (1/1) ... [2022-02-20 21:35:06,534 INFO L137 Inliner]: procedures = 335, calls = 2629, calls flagged for inlining = 138, calls inlined = 130, statements flattened = 6671 [2022-02-20 21:35:06,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 21:35:06,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 21:35:06,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 21:35:06,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 21:35:06,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 09:35:06" (1/1) ... [2022-02-20 21:35:06,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 09:35:06" (1/1) ... [2022-02-20 21:35:06,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 09:35:06" (1/1) ... [2022-02-20 21:35:06,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 09:35:06" (1/1) ... [2022-02-20 21:35:06,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 09:35:06" (1/1) ... [2022-02-20 21:35:06,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 09:35:06" (1/1) ... [2022-02-20 21:35:06,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 09:35:06" (1/1) ... [2022-02-20 21:35:06,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 21:35:06,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 21:35:06,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 21:35:06,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 21:35:06,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 09:35:06" (1/1) ... [2022-02-20 21:35:06,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 21:35:06,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 21:35:06,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 21:35:06,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 21:35:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_add_used_and_signal [2022-02-20 21:35:06,887 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_add_used_and_signal [2022-02-20 21:35:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toiovecend [2022-02-20 21:35:06,888 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend [2022-02-20 21:35:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx_net [2022-02-20 21:35:06,888 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx_net [2022-02-20 21:35:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_free_iovecs [2022-02-20 21:35:06,888 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_free_iovecs [2022-02-20 21:35:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-02-20 21:35:06,888 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-02-20 21:35:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure vq_access_ok [2022-02-20 21:35:06,889 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_access_ok [2022-02-20 21:35:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-20 21:35:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_flush [2022-02-20 21:35:06,889 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_flush [2022-02-20 21:35:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-20 21:35:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-02-20 21:35:06,889 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-02-20 21:35:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_check_owner [2022-02-20 21:35:06,890 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_check_owner [2022-02-20 21:35:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure log_write [2022-02-20 21:35:06,890 INFO L138 BoogieDeclarations]: Found implementation of procedure log_write [2022-02-20 21:35:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx [2022-02-20 21:35:06,890 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx [2022-02-20 21:35:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-02-20 21:35:06,890 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-02-20 21:35:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-02-20 21:35:06,891 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-02-20 21:35:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-02-20 21:35:06,891 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-02-20 21:35:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_reset [2022-02-20 21:35:06,891 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_reset [2022-02-20 21:35:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-02-20 21:35:06,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-02-20 21:35:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure vq_log_access_ok [2022-02-20 21:35:06,891 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_log_access_ok [2022-02-20 21:35:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-02-20 21:35:06,892 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-02-20 21:35:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-02-20 21:35:06,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-02-20 21:35:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-02-20 21:35:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-02-20 21:35:06,892 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-02-20 21:35:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure __vhost_add_used_n [2022-02-20 21:35:06,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __vhost_add_used_n [2022-02-20 21:35:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure tx_poll_start [2022-02-20 21:35:06,893 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_poll_start [2022-02-20 21:35:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_queue [2022-02-20 21:35:06,893 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_queue [2022-02-20 21:35:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure handle_rx [2022-02-20 21:35:06,893 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_rx [2022-02-20 21:35:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx_kick [2022-02-20 21:35:06,894 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx_kick [2022-02-20 21:35:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_open [2022-02-20 21:35:06,894 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_open [2022-02-20 21:35:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-02-20 21:35:06,894 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-02-20 21:35:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-02-20 21:35:06,895 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-02-20 21:35:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-02-20 21:35:06,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-02-20 21:35:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_fget [2022-02-20 21:35:06,896 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_fget [2022-02-20 21:35:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_init [2022-02-20 21:35:06,896 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_init [2022-02-20 21:35:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 21:35:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-02-20 21:35:06,897 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-02-20 21:35:06,897 INFO L130 BoogieDeclarations]: Found specification of procedure vq_memory_access_ok [2022-02-20 21:35:06,897 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_memory_access_ok [2022-02-20 21:35:06,897 INFO L130 BoogieDeclarations]: Found specification of procedure move_iovec_hdr [2022-02-20 21:35:06,897 INFO L138 BoogieDeclarations]: Found implementation of procedure move_iovec_hdr [2022-02-20 21:35:06,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-20 21:35:06,898 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-02-20 21:35:06,898 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-02-20 21:35:06,898 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_queue [2022-02-20 21:35:06,898 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_queue [2022-02-20 21:35:06,898 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_stop [2022-02-20 21:35:06,898 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_stop [2022-02-20 21:35:06,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 21:35:06,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-02-20 21:35:06,898 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_cleanup [2022-02-20 21:35:06,899 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_cleanup [2022-02-20 21:35:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_zerocopy_callback [2022-02-20 21:35:06,899 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_callback [2022-02-20 21:35:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-02-20 21:35:06,899 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-02-20 21:35:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_flush_vq [2022-02-20 21:35:06,899 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_flush_vq [2022-02-20 21:35:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_stop_vq [2022-02-20 21:35:06,900 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_stop_vq [2022-02-20 21:35:06,900 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-02-20 21:35:06,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-02-20 21:35:06,900 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-02-20 21:35:06,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-02-20 21:35:06,901 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-02-20 21:35:06,901 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-02-20 21:35:06,901 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-02-20 21:35:06,901 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-02-20 21:35:06,901 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-02-20 21:35:06,902 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-02-20 21:35:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure next_desc [2022-02-20 21:35:06,902 INFO L138 BoogieDeclarations]: Found implementation of procedure next_desc [2022-02-20 21:35:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure iov_length [2022-02-20 21:35:06,902 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_length [2022-02-20 21:35:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure tx_poll_stop [2022-02-20 21:35:06,902 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_poll_stop [2022-02-20 21:35:06,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-02-20 21:35:06,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-02-20 21:35:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-02-20 21:35:06,903 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-02-20 21:35:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-20 21:35:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-02-20 21:35:06,903 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-02-20 21:35:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_has_feature [2022-02-20 21:35:06,904 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_has_feature [2022-02-20 21:35:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-02-20 21:35:06,904 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-02-20 21:35:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-20 21:35:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2022-02-20 21:35:06,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2022-02-20 21:35:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 21:35:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_init [2022-02-20 21:35:06,907 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_init [2022-02-20 21:35:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_fileget [2022-02-20 21:35:06,908 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_fileget [2022-02-20 21:35:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_flush [2022-02-20 21:35:06,908 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_flush [2022-02-20 21:35:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-02-20 21:35:06,912 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-02-20 21:35:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-02-20 21:35:06,913 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-02-20 21:35:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-02-20 21:35:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_ubuf_put [2022-02-20 21:35:06,913 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put [2022-02-20 21:35:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 21:35:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-02-20 21:35:06,913 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-02-20 21:35:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex [2022-02-20 21:35:06,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex [2022-02-20 21:35:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2022-02-20 21:35:06,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2022-02-20 21:35:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure translate_desc [2022-02-20 21:35:06,914 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_desc [2022-02-20 21:35:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_put [2022-02-20 21:35:06,914 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_put [2022-02-20 21:35:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_ioctl [2022-02-20 21:35:06,914 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_ioctl [2022-02-20 21:35:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_disable_vq [2022-02-20 21:35:06,914 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_disable_vq [2022-02-20 21:35:06,915 INFO L130 BoogieDeclarations]: Found specification of procedure mmput [2022-02-20 21:35:06,915 INFO L138 BoogieDeclarations]: Found implementation of procedure mmput [2022-02-20 21:35:06,915 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-02-20 21:35:06,915 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-02-20 21:35:06,915 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-02-20 21:35:06,915 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-02-20 21:35:06,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-02-20 21:35:06,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-02-20 21:35:06,915 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_ubuf_put_and_wait [2022-02-20 21:35:06,915 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put_and_wait [2022-02-20 21:35:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-02-20 21:35:06,916 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-02-20 21:35:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-20 21:35:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle [2022-02-20 21:35:06,916 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle [2022-02-20 21:35:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-02-20 21:35:06,916 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-02-20 21:35:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_get_vq_desc [2022-02-20 21:35:06,916 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_get_vq_desc [2022-02-20 21:35:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 21:35:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_signal [2022-02-20 21:35:06,917 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_signal [2022-02-20 21:35:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_enable_notify [2022-02-20 21:35:06,917 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_enable_notify [2022-02-20 21:35:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_stop [2022-02-20 21:35:06,917 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_stop [2022-02-20 21:35:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-20 21:35:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-02-20 21:35:06,949 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-02-20 21:35:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-02-20 21:35:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-02-20 21:35:06,949 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-02-20 21:35:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-02-20 21:35:06,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-02-20 21:35:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure memory_access_ok [2022-02-20 21:35:06,949 INFO L138 BoogieDeclarations]: Found implementation of procedure memory_access_ok [2022-02-20 21:35:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-02-20 21:35:06,949 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-02-20 21:35:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-02-20 21:35:06,950 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-02-20 21:35:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_seq_done [2022-02-20 21:35:06,950 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_seq_done [2022-02-20 21:35:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-02-20 21:35:06,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-02-20 21:35:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_release [2022-02-20 21:35:06,950 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_release [2022-02-20 21:35:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-02-20 21:35:06,950 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-02-20 21:35:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_disable_notify [2022-02-20 21:35:06,950 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_disable_notify [2022-02-20 21:35:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-02-20 21:35:06,950 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-02-20 21:35:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-02-20 21:35:06,950 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-02-20 21:35:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_update_used_flags [2022-02-20 21:35:06,950 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_update_used_flags [2022-02-20 21:35:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_discard_vq_desc [2022-02-20 21:35:06,950 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_discard_vq_desc [2022-02-20 21:35:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2022-02-20 21:35:06,950 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2022-02-20 21:35:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_flush [2022-02-20 21:35:06,950 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_flush [2022-02-20 21:35:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex [2022-02-20 21:35:06,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex [2022-02-20 21:35:06,951 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-02-20 21:35:06,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-02-20 21:35:06,951 INFO L130 BoogieDeclarations]: Found specification of procedure log_access_ok [2022-02-20 21:35:06,951 INFO L138 BoogieDeclarations]: Found implementation of procedure log_access_ok [2022-02-20 21:35:06,951 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-02-20 21:35:06,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-02-20 21:35:06,951 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-02-20 21:35:06,951 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-02-20 21:35:06,951 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_signal [2022-02-20 21:35:06,952 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_signal [2022-02-20 21:35:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 21:35:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_zerocopy_signal_used [2022-02-20 21:35:06,952 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_signal_used [2022-02-20 21:35:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_start [2022-02-20 21:35:06,952 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_start [2022-02-20 21:35:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-02-20 21:35:06,952 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-02-20 21:35:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 21:35:06,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 21:35:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-02-20 21:35:06,952 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-02-20 21:35:07,535 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 21:35:07,537 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 21:35:12,053 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5857: SUMMARY for call __copy_to_user_#t~ret139#1 := ldv__builtin_expect((if 0 != __copy_to_user_~ret~2#1 then 1 else 0), 0); srcloc: null [2022-02-20 21:35:12,054 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5857-1: assume -9223372036854775808 <= __copy_to_user_#t~ret139#1 && __copy_to_user_#t~ret139#1 <= 9223372036854775807;__copy_to_user_~tmp___1~3#1 := __copy_to_user_#t~ret139#1;havoc __copy_to_user_#t~ret139#1; [2022-02-20 21:35:12,054 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5845: SUMMARY for call __copy_to_user_#t~ret138#1 := ldv__builtin_expect((if 0 != __copy_to_user_~ret~2#1 then 1 else 0), 0); srcloc: null [2022-02-20 21:35:12,054 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5845-1: assume -9223372036854775808 <= __copy_to_user_#t~ret138#1 && __copy_to_user_#t~ret138#1 <= 9223372036854775807;__copy_to_user_~tmp___0~6#1 := __copy_to_user_#t~ret138#1;havoc __copy_to_user_#t~ret138#1; [2022-02-20 21:35:12,054 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume __copy_to_user_#t~switch137#1; [2022-02-20 21:35:12,054 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume !__copy_to_user_#t~switch137#1; [2022-02-20 21:35:12,054 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5858: assume 0 != __copy_to_user_~tmp___1~3#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-02-20 21:35:12,054 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5858: assume !(0 != __copy_to_user_~tmp___1~3#1);__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-02-20 21:35:12,054 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume __copy_to_user_#t~switch137#1; [2022-02-20 21:35:12,054 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := true; [2022-02-20 21:35:12,054 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5825: havoc __copy_to_user_#t~switch137#1; [2022-02-20 21:35:12,054 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5846: assume 0 != __copy_to_user_~tmp___0~6#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-02-20 21:35:12,054 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5846: assume !(0 != __copy_to_user_~tmp___0~6#1);__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-02-20 21:35:12,054 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume __copy_to_user_#t~switch137#1; [2022-02-20 21:35:12,054 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 16 == __copy_to_user_~size#1; [2022-02-20 21:35:12,055 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5838: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-02-20 21:35:12,055 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5838: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 10 == __copy_to_user_~size#1; [2022-02-20 21:35:12,055 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5867: SUMMARY for call __copy_to_user_#t~ret140#1 := copy_user_generic(__copy_to_user_~dst#1.base, __copy_to_user_~dst#1.offset, __copy_to_user_~src#1.base, __copy_to_user_~src#1.offset, __copy_to_user_~size#1); srcloc: null [2022-02-20 21:35:12,055 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5834: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-02-20 21:35:12,055 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5834: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 8 == __copy_to_user_~size#1; [2022-02-20 21:35:12,055 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5867-1: __copy_to_user_~tmp___2~4#1 := __copy_to_user_#t~ret140#1;havoc __copy_to_user_#t~ret140#1;__copy_to_user_#res#1 := (if __copy_to_user_~tmp___2~4#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_~tmp___2~4#1 % 18446744073709551616 % 4294967296 else __copy_to_user_~tmp___2~4#1 % 18446744073709551616 % 4294967296 - 4294967296); [2022-02-20 21:35:12,055 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5830: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-02-20 21:35:12,055 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5830: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 4 == __copy_to_user_~size#1; [2022-02-20 21:35:12,055 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-02-20 21:35:12,055 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 2 == __copy_to_user_~size#1; [2022-02-20 21:35:14,209 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5785: SUMMARY for call __copy_from_user_#t~ret133#1 := ldv__builtin_expect((if 0 != __copy_from_user_~ret~1#1 then 1 else 0), 0); srcloc: null [2022-02-20 21:35:14,209 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5785-1: assume -9223372036854775808 <= __copy_from_user_#t~ret133#1 && __copy_from_user_#t~ret133#1 <= 9223372036854775807;__copy_from_user_~tmp___0~5#1 := __copy_from_user_#t~ret133#1;havoc __copy_from_user_#t~ret133#1; [2022-02-20 21:35:14,209 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5786: assume 0 != __copy_from_user_~tmp___0~5#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-02-20 21:35:14,209 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5786: assume !(0 != __copy_from_user_~tmp___0~5#1);__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-02-20 21:35:14,209 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5760: havoc __copy_from_user_#t~switch132#1; [2022-02-20 21:35:14,209 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume __copy_from_user_#t~switch132#1; [2022-02-20 21:35:14,209 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := true; [2022-02-20 21:35:14,210 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5798: SUMMARY for call __copy_from_user_#t~ret134#1 := ldv__builtin_expect((if 0 != __copy_from_user_~ret~1#1 then 1 else 0), 0); srcloc: null [2022-02-20 21:35:14,210 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5798-1: assume -9223372036854775808 <= __copy_from_user_#t~ret134#1 && __copy_from_user_#t~ret134#1 <= 9223372036854775807;__copy_from_user_~tmp___1~2#1 := __copy_from_user_#t~ret134#1;havoc __copy_from_user_#t~ret134#1; [2022-02-20 21:35:14,210 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5799: assume 0 != __copy_from_user_~tmp___1~2#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-02-20 21:35:14,210 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5799: assume !(0 != __copy_from_user_~tmp___1~2#1);__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-02-20 21:35:14,210 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5766: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-02-20 21:35:14,210 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5766: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 4 == __copy_from_user_~size#1; [2022-02-20 21:35:14,210 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5771: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-02-20 21:35:14,210 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5771: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 8 == __copy_from_user_~size#1; [2022-02-20 21:35:14,210 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 2 == __copy_from_user_~size#1; [2022-02-20 21:35:14,210 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-02-20 21:35:14,210 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume __copy_from_user_#t~switch132#1; [2022-02-20 21:35:14,210 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume !__copy_from_user_#t~switch132#1; [2022-02-20 21:35:14,210 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5808-1: __copy_from_user_~tmp___2~3#1 := __copy_from_user_#t~ret135#1;havoc __copy_from_user_#t~ret135#1;__copy_from_user_#res#1 := (if __copy_from_user_~tmp___2~3#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_~tmp___2~3#1 % 18446744073709551616 % 4294967296 else __copy_from_user_~tmp___2~3#1 % 18446744073709551616 % 4294967296 - 4294967296); [2022-02-20 21:35:14,211 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5808: SUMMARY for call __copy_from_user_#t~ret135#1 := copy_user_generic(__copy_from_user_~dst#1.base, __copy_from_user_~dst#1.offset, __copy_from_user_~src#1.base, __copy_from_user_~src#1.offset, __copy_from_user_~size#1); srcloc: null [2022-02-20 21:35:14,211 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5776: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-02-20 21:35:14,211 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5776: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 10 == __copy_from_user_~size#1; [2022-02-20 21:35:14,211 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume __copy_from_user_#t~switch132#1; [2022-02-20 21:35:14,211 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 16 == __copy_from_user_~size#1; [2022-02-20 21:35:15,125 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 21:35:15,150 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 21:35:15,150 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 21:35:15,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 09:35:15 BoogieIcfgContainer [2022-02-20 21:35:15,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 21:35:15,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 21:35:15,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 21:35:15,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 21:35:15,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 09:35:04" (1/3) ... [2022-02-20 21:35:15,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b1804f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 09:35:15, skipping insertion in model container [2022-02-20 21:35:15,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 09:35:06" (2/3) ... [2022-02-20 21:35:15,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b1804f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 09:35:15, skipping insertion in model container [2022-02-20 21:35:15,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 09:35:15" (3/3) ... [2022-02-20 21:35:15,161 INFO L111 eAbstractionObserver]: Analyzing ICFG main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2022-02-20 21:35:15,167 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 21:35:15,167 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 21:35:15,217 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 21:35:15,225 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 [2022-02-20 21:35:15,225 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 21:35:15,301 INFO L276 IsEmpty]: Start isEmpty. Operand has 2248 states, 1559 states have (on average 1.347658755612572) internal successors, (2101), 1605 states have internal predecessors, (2101), 579 states have call successors, (579), 108 states have call predecessors, (579), 108 states have return successors, (579), 574 states have call predecessors, (579), 579 states have call successors, (579) [2022-02-20 21:35:15,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-02-20 21:35:15,308 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 21:35:15,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 21:35:15,309 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 21:35:15,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 21:35:15,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1613910609, now seen corresponding path program 1 times [2022-02-20 21:35:15,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 21:35:15,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460982856] [2022-02-20 21:35:15,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 21:35:15,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 21:35:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 21:35:15,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-20 21:35:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 21:35:15,671 INFO L290 TraceCheckUtils]: 0: Hoare triple {2251#true} assume true; {2251#true} is VALID [2022-02-20 21:35:15,672 INFO L284 TraceCheckUtils]: 1: Hoare quadruple {2251#true} {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} #5972#return; {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} is VALID [2022-02-20 21:35:15,673 INFO L290 TraceCheckUtils]: 0: Hoare triple {2251#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(55, 2);call #Ultimate.allocInit(25, 3);call #Ultimate.allocInit(42, 4);call #Ultimate.allocInit(25, 5);call #Ultimate.allocInit(44, 6);call #Ultimate.allocInit(21, 7);call #Ultimate.allocInit(105, 8);call #Ultimate.allocInit(27, 9);call #Ultimate.allocInit(12, 10);call #Ultimate.allocInit(12, 11);call #Ultimate.allocInit(26, 12);call #Ultimate.allocInit(19, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(200, 15);call #Ultimate.allocInit(45, 16);call #Ultimate.allocInit(200, 17);call #Ultimate.allocInit(200, 18);call #Ultimate.allocInit(45, 19);call #Ultimate.allocInit(200, 20);call #Ultimate.allocInit(45, 21);call #Ultimate.allocInit(200, 22);call #Ultimate.allocInit(45, 23);call #Ultimate.allocInit(200, 24);call #Ultimate.allocInit(41, 25);call #Ultimate.allocInit(10, 26);call #Ultimate.allocInit(13, 27);call #Ultimate.allocInit(200, 28);call #Ultimate.allocInit(73, 29);call #Ultimate.allocInit(73, 30);call #Ultimate.allocInit(10, 31);call #Ultimate.allocInit(13, 32);call #Ultimate.allocInit(200, 33);call #Ultimate.allocInit(37, 34);call #Ultimate.allocInit(37, 35);call #Ultimate.allocInit(10, 36);call #Ultimate.allocInit(13, 37);call #Ultimate.allocInit(200, 38);call #Ultimate.allocInit(36, 39);call #Ultimate.allocInit(36, 40);call #Ultimate.allocInit(10, 41);call #Ultimate.allocInit(13, 42);call #Ultimate.allocInit(200, 43);call #Ultimate.allocInit(48, 44);call #Ultimate.allocInit(48, 45);call #Ultimate.allocInit(10, 46);call #Ultimate.allocInit(13, 47);call #Ultimate.allocInit(200, 48);call #Ultimate.allocInit(41, 49);call #Ultimate.allocInit(41, 50);call #Ultimate.allocInit(10, 51);call #Ultimate.allocInit(13, 52);call #Ultimate.allocInit(200, 53);call #Ultimate.allocInit(41, 54);call #Ultimate.allocInit(41, 55);call #Ultimate.allocInit(10, 56);call #Ultimate.allocInit(13, 57);call #Ultimate.allocInit(200, 58);call #Ultimate.allocInit(40, 59);call #Ultimate.allocInit(40, 60);call #Ultimate.allocInit(10, 61);call #Ultimate.allocInit(13, 62);call #Ultimate.allocInit(200, 63);call #Ultimate.allocInit(46, 64);call #Ultimate.allocInit(46, 65);call #Ultimate.allocInit(10, 66);call #Ultimate.allocInit(18, 67);call #Ultimate.allocInit(200, 68);call #Ultimate.allocInit(34, 69);call #Ultimate.allocInit(34, 70);call #Ultimate.allocInit(10, 71);call #Ultimate.allocInit(18, 72);call #Ultimate.allocInit(200, 73);call #Ultimate.allocInit(37, 74);call #Ultimate.allocInit(37, 75);call #Ultimate.allocInit(10, 76);call #Ultimate.allocInit(18, 77);call #Ultimate.allocInit(200, 78);call #Ultimate.allocInit(40, 79);call #Ultimate.allocInit(40, 80);call #Ultimate.allocInit(10, 81);call #Ultimate.allocInit(18, 82);call #Ultimate.allocInit(200, 83);call #Ultimate.allocInit(38, 84);call #Ultimate.allocInit(38, 85);call #Ultimate.allocInit(10, 86);call #Ultimate.allocInit(18, 87);call #Ultimate.allocInit(200, 88);call #Ultimate.allocInit(33, 89);call #Ultimate.allocInit(33, 90);call #Ultimate.allocInit(10, 91);call #Ultimate.allocInit(18, 92);call #Ultimate.allocInit(200, 93);call #Ultimate.allocInit(50, 94);call #Ultimate.allocInit(50, 95);call #Ultimate.allocInit(10, 96);call #Ultimate.allocInit(18, 97);call #Ultimate.allocInit(200, 98);call #Ultimate.allocInit(42, 99);call #Ultimate.allocInit(42, 100);call #Ultimate.allocInit(10, 101);call #Ultimate.allocInit(18, 102);call #Ultimate.allocInit(200, 103);call #Ultimate.allocInit(51, 104);call #Ultimate.allocInit(51, 105);call #Ultimate.allocInit(10, 106);call #Ultimate.allocInit(18, 107);call #Ultimate.allocInit(200, 108);call #Ultimate.allocInit(42, 109);call #Ultimate.allocInit(42, 110);call #Ultimate.allocInit(10, 111);call #Ultimate.allocInit(18, 112);call #Ultimate.allocInit(200, 113);call #Ultimate.allocInit(37, 114);call #Ultimate.allocInit(37, 115);call #Ultimate.allocInit(10, 116);call #Ultimate.allocInit(15, 117);call #Ultimate.allocInit(200, 118);call #Ultimate.allocInit(24, 119);call #Ultimate.allocInit(24, 120);call #Ultimate.allocInit(10, 121);call #Ultimate.allocInit(15, 122);call #Ultimate.allocInit(200, 123);call #Ultimate.allocInit(25, 124);call #Ultimate.allocInit(25, 125);call #Ultimate.allocInit(10, 126);call #Ultimate.allocInit(15, 127);call #Ultimate.allocInit(200, 128);call #Ultimate.allocInit(29, 129);call #Ultimate.allocInit(29, 130);call #Ultimate.allocInit(10, 131);call #Ultimate.allocInit(19, 132);call #Ultimate.allocInit(200, 133);call #Ultimate.allocInit(21, 134);call #Ultimate.allocInit(21, 135);call #Ultimate.allocInit(10, 136);call #Ultimate.allocInit(17, 137);call #Ultimate.allocInit(200, 138);call #Ultimate.allocInit(29, 139);call #Ultimate.allocInit(29, 140);call #Ultimate.allocInit(10, 141);call #Ultimate.allocInit(13, 142);call #Ultimate.allocInit(200, 143);call #Ultimate.allocInit(20, 144);call #Ultimate.allocInit(20, 145);call #Ultimate.allocInit(10, 146);call #Ultimate.allocInit(13, 147);call #Ultimate.allocInit(200, 148);call #Ultimate.allocInit(29, 149);call #Ultimate.allocInit(29, 150);call #Ultimate.allocInit(10, 151);call #Ultimate.allocInit(20, 152);call #Ultimate.allocInit(200, 153);call #Ultimate.allocInit(41, 154);call #Ultimate.allocInit(41, 155);call #Ultimate.allocInit(10, 156);call #Ultimate.allocInit(20, 157);call #Ultimate.allocInit(200, 158);call #Ultimate.allocInit(46, 159);call #Ultimate.allocInit(46, 160);call #Ultimate.allocInit(10, 161);call #Ultimate.allocInit(20, 162);call #Ultimate.allocInit(200, 163);call #Ultimate.allocInit(37, 164);call #Ultimate.allocInit(37, 165);call #Ultimate.allocInit(10, 166);call #Ultimate.allocInit(21, 167);call #Ultimate.allocInit(200, 168);call #Ultimate.allocInit(41, 169);call #Ultimate.allocInit(41, 170);call #Ultimate.allocInit(13, 171);call #Ultimate.allocInit(21, 172);call #Ultimate.allocInit(10, 173);call #Ultimate.allocInit(10, 174);call #Ultimate.allocInit(198, 175);call #Ultimate.allocInit(53, 176);call #Ultimate.allocInit(53, 177);call #Ultimate.allocInit(10, 178);call #Ultimate.allocInit(10, 179);call #Ultimate.allocInit(198, 180);call #Ultimate.allocInit(48, 181);call #Ultimate.allocInit(48, 182);call #Ultimate.allocInit(10, 183);call #Ultimate.allocInit(10, 184);call #Ultimate.allocInit(198, 185);call #Ultimate.allocInit(37, 186);call #Ultimate.allocInit(37, 187);call #Ultimate.allocInit(10, 188);call #Ultimate.allocInit(12, 189);call #Ultimate.allocInit(198, 190);call #Ultimate.allocInit(52, 191);call #Ultimate.allocInit(52, 192);call #Ultimate.allocInit(10, 193);call #Ultimate.allocInit(10, 194);call #Ultimate.allocInit(198, 195);call #Ultimate.allocInit(44, 196);call #Ultimate.allocInit(44, 197);call #Ultimate.allocInit(10, 198);call #Ultimate.allocInit(10, 199);call #Ultimate.allocInit(198, 200);call #Ultimate.allocInit(37, 201);call #Ultimate.allocInit(37, 202);call #Ultimate.allocInit(10, 203);call #Ultimate.allocInit(10, 204);call #Ultimate.allocInit(198, 205);call #Ultimate.allocInit(25, 206);call #Ultimate.allocInit(25, 207);call #Ultimate.allocInit(198, 208);call #Ultimate.allocInit(45, 209);call #Ultimate.allocInit(198, 210);call #Ultimate.allocInit(45, 211);call #Ultimate.allocInit(198, 212);call #Ultimate.allocInit(45, 213);call #Ultimate.allocInit(10, 214);~vhost_zcopy_mask~0 := 0;~experimental_zcopytx~0 := 0;~#vhost_net_fops~0.base, ~#vhost_net_fops~0.offset := 215, 0;call #Ultimate.allocInit(208, 215);call write~init~$Pointer$(~#__this_module~0.base, ~#__this_module~0.offset, ~#vhost_net_fops~0.base, ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~noop_llseek.base, #funAddr~noop_llseek.offset, ~#vhost_net_fops~0.base, 8 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 16 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 24 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 32 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 40 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 48 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 56 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~vhost_net_ioctl.base, #funAddr~vhost_net_ioctl.offset, ~#vhost_net_fops~0.base, 64 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~vhost_net_compat_ioctl.base, #funAddr~vhost_net_compat_ioctl.offset, ~#vhost_net_fops~0.base, 72 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 80 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~vhost_net_open.base, #funAddr~vhost_net_open.offset, ~#vhost_net_fops~0.base, 88 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 96 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~vhost_net_release.base, #funAddr~vhost_net_release.offset, ~#vhost_net_fops~0.base, 104 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 112 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 120 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 128 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 136 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 144 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 152 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 160 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 168 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 176 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 184 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 192 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 200 + ~#vhost_net_fops~0.offset, 8);~#vhost_net_misc~0.base, ~#vhost_net_misc~0.offset := 216, 0;call #Ultimate.allocInit(62, 216);call write~init~int(238, ~#vhost_net_misc~0.base, ~#vhost_net_misc~0.offset, 4);call write~init~$Pointer$(214, 0, ~#vhost_net_misc~0.base, 4 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(~#vhost_net_fops~0.base, ~#vhost_net_fops~0.offset, ~#vhost_net_misc~0.base, 12 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 20 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 28 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 36 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 44 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 52 + ~#vhost_net_misc~0.offset, 8);call write~init~int(0, ~#vhost_net_misc~0.base, 60 + ~#vhost_net_misc~0.offset, 2);~LDV_IN_INTERRUPT~0 := 0;~ldv_mutex_cred_guard_mutex~0 := 0;~ldv_mutex_lock~0 := 0;~ldv_mutex_mtx~0 := 0;~ldv_mutex_mutex~0 := 0; {2251#true} is VALID [2022-02-20 21:35:15,674 INFO L290 TraceCheckUtils]: 1: Hoare triple {2251#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret1239#1, main_#t~nondet1240#1, main_#t~switch1241#1, main_#t~ret1242#1, main_#t~ret1243#1, main_#t~ret1244#1, main_#t~ret1245#1, main_#t~nondet1246#1, main_~var_group1~0#1.base, main_~var_group1~0#1.offset, main_~var_group2~0#1.base, main_~var_group2~0#1.offset, main_~var_vhost_net_ioctl_27_p1~0#1, main_~var_vhost_net_ioctl_27_p2~0#1, main_~var_vhost_net_compat_ioctl_28_p1~0#1, main_~var_vhost_net_compat_ioctl_28_p2~0#1, main_~res_vhost_net_open_13~0#1, main_~ldv_s_vhost_net_fops_file_operations~0#1, main_~tmp~72#1, main_~tmp___0~50#1, main_~tmp___1~35#1;havoc main_~var_group1~0#1.base, main_~var_group1~0#1.offset;havoc main_~var_group2~0#1.base, main_~var_group2~0#1.offset;havoc main_~var_vhost_net_ioctl_27_p1~0#1;havoc main_~var_vhost_net_ioctl_27_p2~0#1;havoc main_~var_vhost_net_compat_ioctl_28_p1~0#1;havoc main_~var_vhost_net_compat_ioctl_28_p2~0#1;havoc main_~res_vhost_net_open_13~0#1;havoc main_~ldv_s_vhost_net_fops_file_operations~0#1;havoc main_~tmp~72#1;havoc main_~tmp___0~50#1;havoc main_~tmp___1~35#1;main_~ldv_s_vhost_net_fops_file_operations~0#1 := 0;~LDV_IN_INTERRUPT~0 := 1;assume { :begin_inline_ldv_initialize } true;~ldv_mutex_cred_guard_mutex~0 := 1;~ldv_mutex_lock~0 := 1;~ldv_mutex_mtx~0 := 1;~ldv_mutex_mutex~0 := 1; {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} is VALID [2022-02-20 21:35:15,675 INFO L290 TraceCheckUtils]: 2: Hoare triple {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} assume { :end_inline_ldv_initialize } true; {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} is VALID [2022-02-20 21:35:15,675 INFO L272 TraceCheckUtils]: 3: Hoare triple {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} call ldv_handler_precall(); {2251#true} is VALID [2022-02-20 21:35:15,675 INFO L290 TraceCheckUtils]: 4: Hoare triple {2251#true} assume true; {2251#true} is VALID [2022-02-20 21:35:15,676 INFO L284 TraceCheckUtils]: 5: Hoare quadruple {2251#true} {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} #5972#return; {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} is VALID [2022-02-20 21:35:15,676 INFO L290 TraceCheckUtils]: 6: Hoare triple {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} assume { :begin_inline_vhost_net_init } true;havoc vhost_net_init_#res#1;havoc vhost_net_init_#t~ret1236#1, vhost_net_init_~tmp~71#1;havoc vhost_net_init_~tmp~71#1; {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} is VALID [2022-02-20 21:35:15,676 INFO L290 TraceCheckUtils]: 7: Hoare triple {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} assume !(0 != ~experimental_zcopytx~0); {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} is VALID [2022-02-20 21:35:15,677 INFO L290 TraceCheckUtils]: 8: Hoare triple {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} assume { :begin_inline_misc_register } true;misc_register_#in~arg0#1.base, misc_register_#in~arg0#1.offset := ~#vhost_net_misc~0.base, ~#vhost_net_misc~0.offset;havoc misc_register_#res#1;havoc misc_register_#t~nondet1289#1, misc_register_~arg0#1.base, misc_register_~arg0#1.offset;misc_register_~arg0#1.base, misc_register_~arg0#1.offset := misc_register_#in~arg0#1.base, misc_register_#in~arg0#1.offset;assume -2147483648 <= misc_register_#t~nondet1289#1 && misc_register_#t~nondet1289#1 <= 2147483647;misc_register_#res#1 := misc_register_#t~nondet1289#1;havoc misc_register_#t~nondet1289#1; {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} is VALID [2022-02-20 21:35:15,677 INFO L290 TraceCheckUtils]: 9: Hoare triple {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} vhost_net_init_#t~ret1236#1 := misc_register_#res#1;assume { :end_inline_misc_register } true;assume -2147483648 <= vhost_net_init_#t~ret1236#1 && vhost_net_init_#t~ret1236#1 <= 2147483647;vhost_net_init_~tmp~71#1 := vhost_net_init_#t~ret1236#1;havoc vhost_net_init_#t~ret1236#1;vhost_net_init_#res#1 := vhost_net_init_~tmp~71#1; {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} is VALID [2022-02-20 21:35:15,678 INFO L290 TraceCheckUtils]: 10: Hoare triple {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} main_#t~ret1239#1 := vhost_net_init_#res#1;assume { :end_inline_vhost_net_init } true;assume -2147483648 <= main_#t~ret1239#1 && main_#t~ret1239#1 <= 2147483647;main_~tmp~72#1 := main_#t~ret1239#1;havoc main_#t~ret1239#1; {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} is VALID [2022-02-20 21:35:15,678 INFO L290 TraceCheckUtils]: 11: Hoare triple {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} assume 0 != main_~tmp~72#1; {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} is VALID [2022-02-20 21:35:15,678 INFO L290 TraceCheckUtils]: 12: Hoare triple {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} assume { :begin_inline_ldv_check_final_state } true; {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} is VALID [2022-02-20 21:35:15,679 INFO L290 TraceCheckUtils]: 13: Hoare triple {2253#(= ~ldv_mutex_cred_guard_mutex~0 1)} assume !(1 == ~ldv_mutex_cred_guard_mutex~0); {2252#false} is VALID [2022-02-20 21:35:15,679 INFO L272 TraceCheckUtils]: 14: Hoare triple {2252#false} call ldv_error(); {2252#false} is VALID [2022-02-20 21:35:15,679 INFO L290 TraceCheckUtils]: 15: Hoare triple {2252#false} assume !false; {2252#false} is VALID [2022-02-20 21:35:15,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 21:35:15,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 21:35:15,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460982856] [2022-02-20 21:35:15,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460982856] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 21:35:15,681 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 21:35:15,681 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 21:35:15,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577636079] [2022-02-20 21:35:15,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 21:35:15,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-02-20 21:35:15,687 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 21:35:15,690 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:35:15,715 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 21:35:15,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 21:35:15,715 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 21:35:15,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 21:35:15,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 21:35:15,736 INFO L87 Difference]: Start difference. First operand has 2248 states, 1559 states have (on average 1.347658755612572) internal successors, (2101), 1605 states have internal predecessors, (2101), 579 states have call successors, (579), 108 states have call predecessors, (579), 108 states have return successors, (579), 574 states have call predecessors, (579), 579 states have call successors, (579) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:35:24,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 21:35:24,381 INFO L93 Difference]: Finished difference Result 4478 states and 6611 transitions. [2022-02-20 21:35:24,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 21:35:24,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-02-20 21:35:24,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 21:35:24,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:35:24,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6611 transitions. [2022-02-20 21:35:24,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:35:25,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6611 transitions. [2022-02-20 21:35:25,167 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 6611 transitions. [2022-02-20 21:35:29,648 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 6611 edges. 6611 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 21:35:30,016 INFO L225 Difference]: With dead ends: 4478 [2022-02-20 21:35:30,017 INFO L226 Difference]: Without dead ends: 2237 [2022-02-20 21:35:30,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 21:35:30,036 INFO L933 BasicCegarLoop]: 3245 mSDtfsCounter, 3235 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3235 SdHoareTripleChecker+Valid, 3245 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 21:35:30,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3235 Valid, 3245 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 21:35:30,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2022-02-20 21:35:30,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 2237. [2022-02-20 21:35:30,169 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 21:35:30,185 INFO L82 GeneralOperation]: Start isEquivalent. First operand 2237 states. Second operand has 2237 states, 1551 states have (on average 1.3430045132172792) internal successors, (2083), 1594 states have internal predecessors, (2083), 578 states have call successors, (578), 108 states have call predecessors, (578), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2022-02-20 21:35:30,197 INFO L74 IsIncluded]: Start isIncluded. First operand 2237 states. Second operand has 2237 states, 1551 states have (on average 1.3430045132172792) internal successors, (2083), 1594 states have internal predecessors, (2083), 578 states have call successors, (578), 108 states have call predecessors, (578), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2022-02-20 21:35:30,202 INFO L87 Difference]: Start difference. First operand 2237 states. Second operand has 2237 states, 1551 states have (on average 1.3430045132172792) internal successors, (2083), 1594 states have internal predecessors, (2083), 578 states have call successors, (578), 108 states have call predecessors, (578), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2022-02-20 21:35:30,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 21:35:30,385 INFO L93 Difference]: Finished difference Result 2237 states and 3234 transitions. [2022-02-20 21:35:30,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 3234 transitions. [2022-02-20 21:35:30,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 21:35:30,404 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 21:35:30,409 INFO L74 IsIncluded]: Start isIncluded. First operand has 2237 states, 1551 states have (on average 1.3430045132172792) internal successors, (2083), 1594 states have internal predecessors, (2083), 578 states have call successors, (578), 108 states have call predecessors, (578), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) Second operand 2237 states. [2022-02-20 21:35:30,415 INFO L87 Difference]: Start difference. First operand has 2237 states, 1551 states have (on average 1.3430045132172792) internal successors, (2083), 1594 states have internal predecessors, (2083), 578 states have call successors, (578), 108 states have call predecessors, (578), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) Second operand 2237 states. [2022-02-20 21:35:30,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 21:35:30,594 INFO L93 Difference]: Finished difference Result 2237 states and 3234 transitions. [2022-02-20 21:35:30,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 3234 transitions. [2022-02-20 21:35:30,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 21:35:30,603 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 21:35:30,604 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 21:35:30,604 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 21:35:30,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2237 states, 1551 states have (on average 1.3430045132172792) internal successors, (2083), 1594 states have internal predecessors, (2083), 578 states have call successors, (578), 108 states have call predecessors, (578), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2022-02-20 21:35:30,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 3234 transitions. [2022-02-20 21:35:30,911 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 3234 transitions. Word has length 16 [2022-02-20 21:35:30,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 21:35:30,911 INFO L470 AbstractCegarLoop]: Abstraction has 2237 states and 3234 transitions. [2022-02-20 21:35:30,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:35:30,913 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 3234 transitions. [2022-02-20 21:35:30,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-02-20 21:35:30,913 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 21:35:30,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 21:35:30,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 21:35:30,914 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 21:35:30,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 21:35:30,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1507349808, now seen corresponding path program 1 times [2022-02-20 21:35:30,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 21:35:30,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360100865] [2022-02-20 21:35:30,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 21:35:30,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 21:35:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 21:35:31,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-20 21:35:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 21:35:31,026 INFO L290 TraceCheckUtils]: 0: Hoare triple {16110#true} assume true; {16110#true} is VALID [2022-02-20 21:35:31,027 INFO L284 TraceCheckUtils]: 1: Hoare quadruple {16110#true} {16112#(= ~ldv_mutex_lock~0 1)} #5972#return; {16112#(= ~ldv_mutex_lock~0 1)} is VALID [2022-02-20 21:35:31,027 INFO L290 TraceCheckUtils]: 0: Hoare triple {16110#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(55, 2);call #Ultimate.allocInit(25, 3);call #Ultimate.allocInit(42, 4);call #Ultimate.allocInit(25, 5);call #Ultimate.allocInit(44, 6);call #Ultimate.allocInit(21, 7);call #Ultimate.allocInit(105, 8);call #Ultimate.allocInit(27, 9);call #Ultimate.allocInit(12, 10);call #Ultimate.allocInit(12, 11);call #Ultimate.allocInit(26, 12);call #Ultimate.allocInit(19, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(200, 15);call #Ultimate.allocInit(45, 16);call #Ultimate.allocInit(200, 17);call #Ultimate.allocInit(200, 18);call #Ultimate.allocInit(45, 19);call #Ultimate.allocInit(200, 20);call #Ultimate.allocInit(45, 21);call #Ultimate.allocInit(200, 22);call #Ultimate.allocInit(45, 23);call #Ultimate.allocInit(200, 24);call #Ultimate.allocInit(41, 25);call #Ultimate.allocInit(10, 26);call #Ultimate.allocInit(13, 27);call #Ultimate.allocInit(200, 28);call #Ultimate.allocInit(73, 29);call #Ultimate.allocInit(73, 30);call #Ultimate.allocInit(10, 31);call #Ultimate.allocInit(13, 32);call #Ultimate.allocInit(200, 33);call #Ultimate.allocInit(37, 34);call #Ultimate.allocInit(37, 35);call #Ultimate.allocInit(10, 36);call #Ultimate.allocInit(13, 37);call #Ultimate.allocInit(200, 38);call #Ultimate.allocInit(36, 39);call #Ultimate.allocInit(36, 40);call #Ultimate.allocInit(10, 41);call #Ultimate.allocInit(13, 42);call #Ultimate.allocInit(200, 43);call #Ultimate.allocInit(48, 44);call #Ultimate.allocInit(48, 45);call #Ultimate.allocInit(10, 46);call #Ultimate.allocInit(13, 47);call #Ultimate.allocInit(200, 48);call #Ultimate.allocInit(41, 49);call #Ultimate.allocInit(41, 50);call #Ultimate.allocInit(10, 51);call #Ultimate.allocInit(13, 52);call #Ultimate.allocInit(200, 53);call #Ultimate.allocInit(41, 54);call #Ultimate.allocInit(41, 55);call #Ultimate.allocInit(10, 56);call #Ultimate.allocInit(13, 57);call #Ultimate.allocInit(200, 58);call #Ultimate.allocInit(40, 59);call #Ultimate.allocInit(40, 60);call #Ultimate.allocInit(10, 61);call #Ultimate.allocInit(13, 62);call #Ultimate.allocInit(200, 63);call #Ultimate.allocInit(46, 64);call #Ultimate.allocInit(46, 65);call #Ultimate.allocInit(10, 66);call #Ultimate.allocInit(18, 67);call #Ultimate.allocInit(200, 68);call #Ultimate.allocInit(34, 69);call #Ultimate.allocInit(34, 70);call #Ultimate.allocInit(10, 71);call #Ultimate.allocInit(18, 72);call #Ultimate.allocInit(200, 73);call #Ultimate.allocInit(37, 74);call #Ultimate.allocInit(37, 75);call #Ultimate.allocInit(10, 76);call #Ultimate.allocInit(18, 77);call #Ultimate.allocInit(200, 78);call #Ultimate.allocInit(40, 79);call #Ultimate.allocInit(40, 80);call #Ultimate.allocInit(10, 81);call #Ultimate.allocInit(18, 82);call #Ultimate.allocInit(200, 83);call #Ultimate.allocInit(38, 84);call #Ultimate.allocInit(38, 85);call #Ultimate.allocInit(10, 86);call #Ultimate.allocInit(18, 87);call #Ultimate.allocInit(200, 88);call #Ultimate.allocInit(33, 89);call #Ultimate.allocInit(33, 90);call #Ultimate.allocInit(10, 91);call #Ultimate.allocInit(18, 92);call #Ultimate.allocInit(200, 93);call #Ultimate.allocInit(50, 94);call #Ultimate.allocInit(50, 95);call #Ultimate.allocInit(10, 96);call #Ultimate.allocInit(18, 97);call #Ultimate.allocInit(200, 98);call #Ultimate.allocInit(42, 99);call #Ultimate.allocInit(42, 100);call #Ultimate.allocInit(10, 101);call #Ultimate.allocInit(18, 102);call #Ultimate.allocInit(200, 103);call #Ultimate.allocInit(51, 104);call #Ultimate.allocInit(51, 105);call #Ultimate.allocInit(10, 106);call #Ultimate.allocInit(18, 107);call #Ultimate.allocInit(200, 108);call #Ultimate.allocInit(42, 109);call #Ultimate.allocInit(42, 110);call #Ultimate.allocInit(10, 111);call #Ultimate.allocInit(18, 112);call #Ultimate.allocInit(200, 113);call #Ultimate.allocInit(37, 114);call #Ultimate.allocInit(37, 115);call #Ultimate.allocInit(10, 116);call #Ultimate.allocInit(15, 117);call #Ultimate.allocInit(200, 118);call #Ultimate.allocInit(24, 119);call #Ultimate.allocInit(24, 120);call #Ultimate.allocInit(10, 121);call #Ultimate.allocInit(15, 122);call #Ultimate.allocInit(200, 123);call #Ultimate.allocInit(25, 124);call #Ultimate.allocInit(25, 125);call #Ultimate.allocInit(10, 126);call #Ultimate.allocInit(15, 127);call #Ultimate.allocInit(200, 128);call #Ultimate.allocInit(29, 129);call #Ultimate.allocInit(29, 130);call #Ultimate.allocInit(10, 131);call #Ultimate.allocInit(19, 132);call #Ultimate.allocInit(200, 133);call #Ultimate.allocInit(21, 134);call #Ultimate.allocInit(21, 135);call #Ultimate.allocInit(10, 136);call #Ultimate.allocInit(17, 137);call #Ultimate.allocInit(200, 138);call #Ultimate.allocInit(29, 139);call #Ultimate.allocInit(29, 140);call #Ultimate.allocInit(10, 141);call #Ultimate.allocInit(13, 142);call #Ultimate.allocInit(200, 143);call #Ultimate.allocInit(20, 144);call #Ultimate.allocInit(20, 145);call #Ultimate.allocInit(10, 146);call #Ultimate.allocInit(13, 147);call #Ultimate.allocInit(200, 148);call #Ultimate.allocInit(29, 149);call #Ultimate.allocInit(29, 150);call #Ultimate.allocInit(10, 151);call #Ultimate.allocInit(20, 152);call #Ultimate.allocInit(200, 153);call #Ultimate.allocInit(41, 154);call #Ultimate.allocInit(41, 155);call #Ultimate.allocInit(10, 156);call #Ultimate.allocInit(20, 157);call #Ultimate.allocInit(200, 158);call #Ultimate.allocInit(46, 159);call #Ultimate.allocInit(46, 160);call #Ultimate.allocInit(10, 161);call #Ultimate.allocInit(20, 162);call #Ultimate.allocInit(200, 163);call #Ultimate.allocInit(37, 164);call #Ultimate.allocInit(37, 165);call #Ultimate.allocInit(10, 166);call #Ultimate.allocInit(21, 167);call #Ultimate.allocInit(200, 168);call #Ultimate.allocInit(41, 169);call #Ultimate.allocInit(41, 170);call #Ultimate.allocInit(13, 171);call #Ultimate.allocInit(21, 172);call #Ultimate.allocInit(10, 173);call #Ultimate.allocInit(10, 174);call #Ultimate.allocInit(198, 175);call #Ultimate.allocInit(53, 176);call #Ultimate.allocInit(53, 177);call #Ultimate.allocInit(10, 178);call #Ultimate.allocInit(10, 179);call #Ultimate.allocInit(198, 180);call #Ultimate.allocInit(48, 181);call #Ultimate.allocInit(48, 182);call #Ultimate.allocInit(10, 183);call #Ultimate.allocInit(10, 184);call #Ultimate.allocInit(198, 185);call #Ultimate.allocInit(37, 186);call #Ultimate.allocInit(37, 187);call #Ultimate.allocInit(10, 188);call #Ultimate.allocInit(12, 189);call #Ultimate.allocInit(198, 190);call #Ultimate.allocInit(52, 191);call #Ultimate.allocInit(52, 192);call #Ultimate.allocInit(10, 193);call #Ultimate.allocInit(10, 194);call #Ultimate.allocInit(198, 195);call #Ultimate.allocInit(44, 196);call #Ultimate.allocInit(44, 197);call #Ultimate.allocInit(10, 198);call #Ultimate.allocInit(10, 199);call #Ultimate.allocInit(198, 200);call #Ultimate.allocInit(37, 201);call #Ultimate.allocInit(37, 202);call #Ultimate.allocInit(10, 203);call #Ultimate.allocInit(10, 204);call #Ultimate.allocInit(198, 205);call #Ultimate.allocInit(25, 206);call #Ultimate.allocInit(25, 207);call #Ultimate.allocInit(198, 208);call #Ultimate.allocInit(45, 209);call #Ultimate.allocInit(198, 210);call #Ultimate.allocInit(45, 211);call #Ultimate.allocInit(198, 212);call #Ultimate.allocInit(45, 213);call #Ultimate.allocInit(10, 214);~vhost_zcopy_mask~0 := 0;~experimental_zcopytx~0 := 0;~#vhost_net_fops~0.base, ~#vhost_net_fops~0.offset := 215, 0;call #Ultimate.allocInit(208, 215);call write~init~$Pointer$(~#__this_module~0.base, ~#__this_module~0.offset, ~#vhost_net_fops~0.base, ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~noop_llseek.base, #funAddr~noop_llseek.offset, ~#vhost_net_fops~0.base, 8 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 16 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 24 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 32 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 40 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 48 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 56 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~vhost_net_ioctl.base, #funAddr~vhost_net_ioctl.offset, ~#vhost_net_fops~0.base, 64 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~vhost_net_compat_ioctl.base, #funAddr~vhost_net_compat_ioctl.offset, ~#vhost_net_fops~0.base, 72 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 80 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~vhost_net_open.base, #funAddr~vhost_net_open.offset, ~#vhost_net_fops~0.base, 88 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 96 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~vhost_net_release.base, #funAddr~vhost_net_release.offset, ~#vhost_net_fops~0.base, 104 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 112 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 120 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 128 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 136 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 144 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 152 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 160 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 168 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 176 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 184 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 192 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 200 + ~#vhost_net_fops~0.offset, 8);~#vhost_net_misc~0.base, ~#vhost_net_misc~0.offset := 216, 0;call #Ultimate.allocInit(62, 216);call write~init~int(238, ~#vhost_net_misc~0.base, ~#vhost_net_misc~0.offset, 4);call write~init~$Pointer$(214, 0, ~#vhost_net_misc~0.base, 4 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(~#vhost_net_fops~0.base, ~#vhost_net_fops~0.offset, ~#vhost_net_misc~0.base, 12 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 20 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 28 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 36 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 44 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 52 + ~#vhost_net_misc~0.offset, 8);call write~init~int(0, ~#vhost_net_misc~0.base, 60 + ~#vhost_net_misc~0.offset, 2);~LDV_IN_INTERRUPT~0 := 0;~ldv_mutex_cred_guard_mutex~0 := 0;~ldv_mutex_lock~0 := 0;~ldv_mutex_mtx~0 := 0;~ldv_mutex_mutex~0 := 0; {16110#true} is VALID [2022-02-20 21:35:31,029 INFO L290 TraceCheckUtils]: 1: Hoare triple {16110#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret1239#1, main_#t~nondet1240#1, main_#t~switch1241#1, main_#t~ret1242#1, main_#t~ret1243#1, main_#t~ret1244#1, main_#t~ret1245#1, main_#t~nondet1246#1, main_~var_group1~0#1.base, main_~var_group1~0#1.offset, main_~var_group2~0#1.base, main_~var_group2~0#1.offset, main_~var_vhost_net_ioctl_27_p1~0#1, main_~var_vhost_net_ioctl_27_p2~0#1, main_~var_vhost_net_compat_ioctl_28_p1~0#1, main_~var_vhost_net_compat_ioctl_28_p2~0#1, main_~res_vhost_net_open_13~0#1, main_~ldv_s_vhost_net_fops_file_operations~0#1, main_~tmp~72#1, main_~tmp___0~50#1, main_~tmp___1~35#1;havoc main_~var_group1~0#1.base, main_~var_group1~0#1.offset;havoc main_~var_group2~0#1.base, main_~var_group2~0#1.offset;havoc main_~var_vhost_net_ioctl_27_p1~0#1;havoc main_~var_vhost_net_ioctl_27_p2~0#1;havoc main_~var_vhost_net_compat_ioctl_28_p1~0#1;havoc main_~var_vhost_net_compat_ioctl_28_p2~0#1;havoc main_~res_vhost_net_open_13~0#1;havoc main_~ldv_s_vhost_net_fops_file_operations~0#1;havoc main_~tmp~72#1;havoc main_~tmp___0~50#1;havoc main_~tmp___1~35#1;main_~ldv_s_vhost_net_fops_file_operations~0#1 := 0;~LDV_IN_INTERRUPT~0 := 1;assume { :begin_inline_ldv_initialize } true;~ldv_mutex_cred_guard_mutex~0 := 1;~ldv_mutex_lock~0 := 1;~ldv_mutex_mtx~0 := 1;~ldv_mutex_mutex~0 := 1; {16112#(= ~ldv_mutex_lock~0 1)} is VALID [2022-02-20 21:35:31,029 INFO L290 TraceCheckUtils]: 2: Hoare triple {16112#(= ~ldv_mutex_lock~0 1)} assume { :end_inline_ldv_initialize } true; {16112#(= ~ldv_mutex_lock~0 1)} is VALID [2022-02-20 21:35:31,029 INFO L272 TraceCheckUtils]: 3: Hoare triple {16112#(= ~ldv_mutex_lock~0 1)} call ldv_handler_precall(); {16110#true} is VALID [2022-02-20 21:35:31,030 INFO L290 TraceCheckUtils]: 4: Hoare triple {16110#true} assume true; {16110#true} is VALID [2022-02-20 21:35:31,030 INFO L284 TraceCheckUtils]: 5: Hoare quadruple {16110#true} {16112#(= ~ldv_mutex_lock~0 1)} #5972#return; {16112#(= ~ldv_mutex_lock~0 1)} is VALID [2022-02-20 21:35:31,030 INFO L290 TraceCheckUtils]: 6: Hoare triple {16112#(= ~ldv_mutex_lock~0 1)} assume { :begin_inline_vhost_net_init } true;havoc vhost_net_init_#res#1;havoc vhost_net_init_#t~ret1236#1, vhost_net_init_~tmp~71#1;havoc vhost_net_init_~tmp~71#1; {16112#(= ~ldv_mutex_lock~0 1)} is VALID [2022-02-20 21:35:31,031 INFO L290 TraceCheckUtils]: 7: Hoare triple {16112#(= ~ldv_mutex_lock~0 1)} assume !(0 != ~experimental_zcopytx~0); {16112#(= ~ldv_mutex_lock~0 1)} is VALID [2022-02-20 21:35:31,031 INFO L290 TraceCheckUtils]: 8: Hoare triple {16112#(= ~ldv_mutex_lock~0 1)} assume { :begin_inline_misc_register } true;misc_register_#in~arg0#1.base, misc_register_#in~arg0#1.offset := ~#vhost_net_misc~0.base, ~#vhost_net_misc~0.offset;havoc misc_register_#res#1;havoc misc_register_#t~nondet1289#1, misc_register_~arg0#1.base, misc_register_~arg0#1.offset;misc_register_~arg0#1.base, misc_register_~arg0#1.offset := misc_register_#in~arg0#1.base, misc_register_#in~arg0#1.offset;assume -2147483648 <= misc_register_#t~nondet1289#1 && misc_register_#t~nondet1289#1 <= 2147483647;misc_register_#res#1 := misc_register_#t~nondet1289#1;havoc misc_register_#t~nondet1289#1; {16112#(= ~ldv_mutex_lock~0 1)} is VALID [2022-02-20 21:35:31,031 INFO L290 TraceCheckUtils]: 9: Hoare triple {16112#(= ~ldv_mutex_lock~0 1)} vhost_net_init_#t~ret1236#1 := misc_register_#res#1;assume { :end_inline_misc_register } true;assume -2147483648 <= vhost_net_init_#t~ret1236#1 && vhost_net_init_#t~ret1236#1 <= 2147483647;vhost_net_init_~tmp~71#1 := vhost_net_init_#t~ret1236#1;havoc vhost_net_init_#t~ret1236#1;vhost_net_init_#res#1 := vhost_net_init_~tmp~71#1; {16112#(= ~ldv_mutex_lock~0 1)} is VALID [2022-02-20 21:35:31,032 INFO L290 TraceCheckUtils]: 10: Hoare triple {16112#(= ~ldv_mutex_lock~0 1)} main_#t~ret1239#1 := vhost_net_init_#res#1;assume { :end_inline_vhost_net_init } true;assume -2147483648 <= main_#t~ret1239#1 && main_#t~ret1239#1 <= 2147483647;main_~tmp~72#1 := main_#t~ret1239#1;havoc main_#t~ret1239#1; {16112#(= ~ldv_mutex_lock~0 1)} is VALID [2022-02-20 21:35:31,032 INFO L290 TraceCheckUtils]: 11: Hoare triple {16112#(= ~ldv_mutex_lock~0 1)} assume 0 != main_~tmp~72#1; {16112#(= ~ldv_mutex_lock~0 1)} is VALID [2022-02-20 21:35:31,032 INFO L290 TraceCheckUtils]: 12: Hoare triple {16112#(= ~ldv_mutex_lock~0 1)} assume { :begin_inline_ldv_check_final_state } true; {16112#(= ~ldv_mutex_lock~0 1)} is VALID [2022-02-20 21:35:31,033 INFO L290 TraceCheckUtils]: 13: Hoare triple {16112#(= ~ldv_mutex_lock~0 1)} assume 1 == ~ldv_mutex_cred_guard_mutex~0; {16112#(= ~ldv_mutex_lock~0 1)} is VALID [2022-02-20 21:35:31,033 INFO L290 TraceCheckUtils]: 14: Hoare triple {16112#(= ~ldv_mutex_lock~0 1)} assume !(1 == ~ldv_mutex_lock~0); {16111#false} is VALID [2022-02-20 21:35:31,033 INFO L272 TraceCheckUtils]: 15: Hoare triple {16111#false} call ldv_error(); {16111#false} is VALID [2022-02-20 21:35:31,034 INFO L290 TraceCheckUtils]: 16: Hoare triple {16111#false} assume !false; {16111#false} is VALID [2022-02-20 21:35:31,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 21:35:31,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 21:35:31,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360100865] [2022-02-20 21:35:31,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360100865] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 21:35:31,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 21:35:31,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 21:35:31,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044380627] [2022-02-20 21:35:31,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 21:35:31,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-02-20 21:35:31,038 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 21:35:31,038 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:35:31,064 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 21:35:31,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 21:35:31,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 21:35:31,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 21:35:31,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 21:35:31,067 INFO L87 Difference]: Start difference. First operand 2237 states and 3234 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:35:37,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 21:35:37,844 INFO L93 Difference]: Finished difference Result 2239 states and 3235 transitions. [2022-02-20 21:35:37,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 21:35:37,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-02-20 21:35:37,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 21:35:37,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:35:38,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3235 transitions. [2022-02-20 21:35:38,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:35:38,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3235 transitions. [2022-02-20 21:35:38,165 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 3235 transitions. [2022-02-20 21:35:40,666 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 3235 edges. 3235 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 21:35:40,905 INFO L225 Difference]: With dead ends: 2239 [2022-02-20 21:35:40,905 INFO L226 Difference]: Without dead ends: 2236 [2022-02-20 21:35:40,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 21:35:40,907 INFO L933 BasicCegarLoop]: 3231 mSDtfsCounter, 3220 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3220 SdHoareTripleChecker+Valid, 3231 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 21:35:40,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3220 Valid, 3231 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 21:35:40,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2022-02-20 21:35:40,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2236. [2022-02-20 21:35:40,994 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 21:35:40,998 INFO L82 GeneralOperation]: Start isEquivalent. First operand 2236 states. Second operand has 2236 states, 1551 states have (on average 1.3423597678916828) internal successors, (2082), 1593 states have internal predecessors, (2082), 577 states have call successors, (577), 108 states have call predecessors, (577), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2022-02-20 21:35:41,003 INFO L74 IsIncluded]: Start isIncluded. First operand 2236 states. Second operand has 2236 states, 1551 states have (on average 1.3423597678916828) internal successors, (2082), 1593 states have internal predecessors, (2082), 577 states have call successors, (577), 108 states have call predecessors, (577), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2022-02-20 21:35:41,009 INFO L87 Difference]: Start difference. First operand 2236 states. Second operand has 2236 states, 1551 states have (on average 1.3423597678916828) internal successors, (2082), 1593 states have internal predecessors, (2082), 577 states have call successors, (577), 108 states have call predecessors, (577), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2022-02-20 21:35:41,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 21:35:41,181 INFO L93 Difference]: Finished difference Result 2236 states and 3232 transitions. [2022-02-20 21:35:41,181 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 3232 transitions. [2022-02-20 21:35:41,192 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 21:35:41,192 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 21:35:41,196 INFO L74 IsIncluded]: Start isIncluded. First operand has 2236 states, 1551 states have (on average 1.3423597678916828) internal successors, (2082), 1593 states have internal predecessors, (2082), 577 states have call successors, (577), 108 states have call predecessors, (577), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) Second operand 2236 states. [2022-02-20 21:35:41,198 INFO L87 Difference]: Start difference. First operand has 2236 states, 1551 states have (on average 1.3423597678916828) internal successors, (2082), 1593 states have internal predecessors, (2082), 577 states have call successors, (577), 108 states have call predecessors, (577), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) Second operand 2236 states. [2022-02-20 21:35:41,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 21:35:41,367 INFO L93 Difference]: Finished difference Result 2236 states and 3232 transitions. [2022-02-20 21:35:41,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 3232 transitions. [2022-02-20 21:35:41,374 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 21:35:41,374 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 21:35:41,375 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 21:35:41,375 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 21:35:41,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2236 states, 1551 states have (on average 1.3423597678916828) internal successors, (2082), 1593 states have internal predecessors, (2082), 577 states have call successors, (577), 108 states have call predecessors, (577), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2022-02-20 21:35:41,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 3232 transitions. [2022-02-20 21:35:41,612 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 3232 transitions. Word has length 17 [2022-02-20 21:35:41,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 21:35:41,612 INFO L470 AbstractCegarLoop]: Abstraction has 2236 states and 3232 transitions. [2022-02-20 21:35:41,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:35:41,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 3232 transitions. [2022-02-20 21:35:41,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-02-20 21:35:41,613 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 21:35:41,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 21:35:41,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 21:35:41,613 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 21:35:41,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 21:35:41,614 INFO L85 PathProgramCache]: Analyzing trace with hash -517820206, now seen corresponding path program 1 times [2022-02-20 21:35:41,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 21:35:41,614 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966930012] [2022-02-20 21:35:41,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 21:35:41,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 21:35:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 21:35:41,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-20 21:35:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 21:35:41,674 INFO L290 TraceCheckUtils]: 0: Hoare triple {26834#true} assume true; {26834#true} is VALID [2022-02-20 21:35:41,674 INFO L284 TraceCheckUtils]: 1: Hoare quadruple {26834#true} {26836#(= ~ldv_mutex_mtx~0 1)} #5972#return; {26836#(= ~ldv_mutex_mtx~0 1)} is VALID [2022-02-20 21:35:41,675 INFO L290 TraceCheckUtils]: 0: Hoare triple {26834#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(55, 2);call #Ultimate.allocInit(25, 3);call #Ultimate.allocInit(42, 4);call #Ultimate.allocInit(25, 5);call #Ultimate.allocInit(44, 6);call #Ultimate.allocInit(21, 7);call #Ultimate.allocInit(105, 8);call #Ultimate.allocInit(27, 9);call #Ultimate.allocInit(12, 10);call #Ultimate.allocInit(12, 11);call #Ultimate.allocInit(26, 12);call #Ultimate.allocInit(19, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(200, 15);call #Ultimate.allocInit(45, 16);call #Ultimate.allocInit(200, 17);call #Ultimate.allocInit(200, 18);call #Ultimate.allocInit(45, 19);call #Ultimate.allocInit(200, 20);call #Ultimate.allocInit(45, 21);call #Ultimate.allocInit(200, 22);call #Ultimate.allocInit(45, 23);call #Ultimate.allocInit(200, 24);call #Ultimate.allocInit(41, 25);call #Ultimate.allocInit(10, 26);call #Ultimate.allocInit(13, 27);call #Ultimate.allocInit(200, 28);call #Ultimate.allocInit(73, 29);call #Ultimate.allocInit(73, 30);call #Ultimate.allocInit(10, 31);call #Ultimate.allocInit(13, 32);call #Ultimate.allocInit(200, 33);call #Ultimate.allocInit(37, 34);call #Ultimate.allocInit(37, 35);call #Ultimate.allocInit(10, 36);call #Ultimate.allocInit(13, 37);call #Ultimate.allocInit(200, 38);call #Ultimate.allocInit(36, 39);call #Ultimate.allocInit(36, 40);call #Ultimate.allocInit(10, 41);call #Ultimate.allocInit(13, 42);call #Ultimate.allocInit(200, 43);call #Ultimate.allocInit(48, 44);call #Ultimate.allocInit(48, 45);call #Ultimate.allocInit(10, 46);call #Ultimate.allocInit(13, 47);call #Ultimate.allocInit(200, 48);call #Ultimate.allocInit(41, 49);call #Ultimate.allocInit(41, 50);call #Ultimate.allocInit(10, 51);call #Ultimate.allocInit(13, 52);call #Ultimate.allocInit(200, 53);call #Ultimate.allocInit(41, 54);call #Ultimate.allocInit(41, 55);call #Ultimate.allocInit(10, 56);call #Ultimate.allocInit(13, 57);call #Ultimate.allocInit(200, 58);call #Ultimate.allocInit(40, 59);call #Ultimate.allocInit(40, 60);call #Ultimate.allocInit(10, 61);call #Ultimate.allocInit(13, 62);call #Ultimate.allocInit(200, 63);call #Ultimate.allocInit(46, 64);call #Ultimate.allocInit(46, 65);call #Ultimate.allocInit(10, 66);call #Ultimate.allocInit(18, 67);call #Ultimate.allocInit(200, 68);call #Ultimate.allocInit(34, 69);call #Ultimate.allocInit(34, 70);call #Ultimate.allocInit(10, 71);call #Ultimate.allocInit(18, 72);call #Ultimate.allocInit(200, 73);call #Ultimate.allocInit(37, 74);call #Ultimate.allocInit(37, 75);call #Ultimate.allocInit(10, 76);call #Ultimate.allocInit(18, 77);call #Ultimate.allocInit(200, 78);call #Ultimate.allocInit(40, 79);call #Ultimate.allocInit(40, 80);call #Ultimate.allocInit(10, 81);call #Ultimate.allocInit(18, 82);call #Ultimate.allocInit(200, 83);call #Ultimate.allocInit(38, 84);call #Ultimate.allocInit(38, 85);call #Ultimate.allocInit(10, 86);call #Ultimate.allocInit(18, 87);call #Ultimate.allocInit(200, 88);call #Ultimate.allocInit(33, 89);call #Ultimate.allocInit(33, 90);call #Ultimate.allocInit(10, 91);call #Ultimate.allocInit(18, 92);call #Ultimate.allocInit(200, 93);call #Ultimate.allocInit(50, 94);call #Ultimate.allocInit(50, 95);call #Ultimate.allocInit(10, 96);call #Ultimate.allocInit(18, 97);call #Ultimate.allocInit(200, 98);call #Ultimate.allocInit(42, 99);call #Ultimate.allocInit(42, 100);call #Ultimate.allocInit(10, 101);call #Ultimate.allocInit(18, 102);call #Ultimate.allocInit(200, 103);call #Ultimate.allocInit(51, 104);call #Ultimate.allocInit(51, 105);call #Ultimate.allocInit(10, 106);call #Ultimate.allocInit(18, 107);call #Ultimate.allocInit(200, 108);call #Ultimate.allocInit(42, 109);call #Ultimate.allocInit(42, 110);call #Ultimate.allocInit(10, 111);call #Ultimate.allocInit(18, 112);call #Ultimate.allocInit(200, 113);call #Ultimate.allocInit(37, 114);call #Ultimate.allocInit(37, 115);call #Ultimate.allocInit(10, 116);call #Ultimate.allocInit(15, 117);call #Ultimate.allocInit(200, 118);call #Ultimate.allocInit(24, 119);call #Ultimate.allocInit(24, 120);call #Ultimate.allocInit(10, 121);call #Ultimate.allocInit(15, 122);call #Ultimate.allocInit(200, 123);call #Ultimate.allocInit(25, 124);call #Ultimate.allocInit(25, 125);call #Ultimate.allocInit(10, 126);call #Ultimate.allocInit(15, 127);call #Ultimate.allocInit(200, 128);call #Ultimate.allocInit(29, 129);call #Ultimate.allocInit(29, 130);call #Ultimate.allocInit(10, 131);call #Ultimate.allocInit(19, 132);call #Ultimate.allocInit(200, 133);call #Ultimate.allocInit(21, 134);call #Ultimate.allocInit(21, 135);call #Ultimate.allocInit(10, 136);call #Ultimate.allocInit(17, 137);call #Ultimate.allocInit(200, 138);call #Ultimate.allocInit(29, 139);call #Ultimate.allocInit(29, 140);call #Ultimate.allocInit(10, 141);call #Ultimate.allocInit(13, 142);call #Ultimate.allocInit(200, 143);call #Ultimate.allocInit(20, 144);call #Ultimate.allocInit(20, 145);call #Ultimate.allocInit(10, 146);call #Ultimate.allocInit(13, 147);call #Ultimate.allocInit(200, 148);call #Ultimate.allocInit(29, 149);call #Ultimate.allocInit(29, 150);call #Ultimate.allocInit(10, 151);call #Ultimate.allocInit(20, 152);call #Ultimate.allocInit(200, 153);call #Ultimate.allocInit(41, 154);call #Ultimate.allocInit(41, 155);call #Ultimate.allocInit(10, 156);call #Ultimate.allocInit(20, 157);call #Ultimate.allocInit(200, 158);call #Ultimate.allocInit(46, 159);call #Ultimate.allocInit(46, 160);call #Ultimate.allocInit(10, 161);call #Ultimate.allocInit(20, 162);call #Ultimate.allocInit(200, 163);call #Ultimate.allocInit(37, 164);call #Ultimate.allocInit(37, 165);call #Ultimate.allocInit(10, 166);call #Ultimate.allocInit(21, 167);call #Ultimate.allocInit(200, 168);call #Ultimate.allocInit(41, 169);call #Ultimate.allocInit(41, 170);call #Ultimate.allocInit(13, 171);call #Ultimate.allocInit(21, 172);call #Ultimate.allocInit(10, 173);call #Ultimate.allocInit(10, 174);call #Ultimate.allocInit(198, 175);call #Ultimate.allocInit(53, 176);call #Ultimate.allocInit(53, 177);call #Ultimate.allocInit(10, 178);call #Ultimate.allocInit(10, 179);call #Ultimate.allocInit(198, 180);call #Ultimate.allocInit(48, 181);call #Ultimate.allocInit(48, 182);call #Ultimate.allocInit(10, 183);call #Ultimate.allocInit(10, 184);call #Ultimate.allocInit(198, 185);call #Ultimate.allocInit(37, 186);call #Ultimate.allocInit(37, 187);call #Ultimate.allocInit(10, 188);call #Ultimate.allocInit(12, 189);call #Ultimate.allocInit(198, 190);call #Ultimate.allocInit(52, 191);call #Ultimate.allocInit(52, 192);call #Ultimate.allocInit(10, 193);call #Ultimate.allocInit(10, 194);call #Ultimate.allocInit(198, 195);call #Ultimate.allocInit(44, 196);call #Ultimate.allocInit(44, 197);call #Ultimate.allocInit(10, 198);call #Ultimate.allocInit(10, 199);call #Ultimate.allocInit(198, 200);call #Ultimate.allocInit(37, 201);call #Ultimate.allocInit(37, 202);call #Ultimate.allocInit(10, 203);call #Ultimate.allocInit(10, 204);call #Ultimate.allocInit(198, 205);call #Ultimate.allocInit(25, 206);call #Ultimate.allocInit(25, 207);call #Ultimate.allocInit(198, 208);call #Ultimate.allocInit(45, 209);call #Ultimate.allocInit(198, 210);call #Ultimate.allocInit(45, 211);call #Ultimate.allocInit(198, 212);call #Ultimate.allocInit(45, 213);call #Ultimate.allocInit(10, 214);~vhost_zcopy_mask~0 := 0;~experimental_zcopytx~0 := 0;~#vhost_net_fops~0.base, ~#vhost_net_fops~0.offset := 215, 0;call #Ultimate.allocInit(208, 215);call write~init~$Pointer$(~#__this_module~0.base, ~#__this_module~0.offset, ~#vhost_net_fops~0.base, ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~noop_llseek.base, #funAddr~noop_llseek.offset, ~#vhost_net_fops~0.base, 8 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 16 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 24 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 32 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 40 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 48 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 56 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~vhost_net_ioctl.base, #funAddr~vhost_net_ioctl.offset, ~#vhost_net_fops~0.base, 64 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~vhost_net_compat_ioctl.base, #funAddr~vhost_net_compat_ioctl.offset, ~#vhost_net_fops~0.base, 72 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 80 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~vhost_net_open.base, #funAddr~vhost_net_open.offset, ~#vhost_net_fops~0.base, 88 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 96 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~vhost_net_release.base, #funAddr~vhost_net_release.offset, ~#vhost_net_fops~0.base, 104 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 112 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 120 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 128 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 136 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 144 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 152 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 160 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 168 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 176 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 184 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 192 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 200 + ~#vhost_net_fops~0.offset, 8);~#vhost_net_misc~0.base, ~#vhost_net_misc~0.offset := 216, 0;call #Ultimate.allocInit(62, 216);call write~init~int(238, ~#vhost_net_misc~0.base, ~#vhost_net_misc~0.offset, 4);call write~init~$Pointer$(214, 0, ~#vhost_net_misc~0.base, 4 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(~#vhost_net_fops~0.base, ~#vhost_net_fops~0.offset, ~#vhost_net_misc~0.base, 12 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 20 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 28 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 36 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 44 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 52 + ~#vhost_net_misc~0.offset, 8);call write~init~int(0, ~#vhost_net_misc~0.base, 60 + ~#vhost_net_misc~0.offset, 2);~LDV_IN_INTERRUPT~0 := 0;~ldv_mutex_cred_guard_mutex~0 := 0;~ldv_mutex_lock~0 := 0;~ldv_mutex_mtx~0 := 0;~ldv_mutex_mutex~0 := 0; {26834#true} is VALID [2022-02-20 21:35:41,675 INFO L290 TraceCheckUtils]: 1: Hoare triple {26834#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret1239#1, main_#t~nondet1240#1, main_#t~switch1241#1, main_#t~ret1242#1, main_#t~ret1243#1, main_#t~ret1244#1, main_#t~ret1245#1, main_#t~nondet1246#1, main_~var_group1~0#1.base, main_~var_group1~0#1.offset, main_~var_group2~0#1.base, main_~var_group2~0#1.offset, main_~var_vhost_net_ioctl_27_p1~0#1, main_~var_vhost_net_ioctl_27_p2~0#1, main_~var_vhost_net_compat_ioctl_28_p1~0#1, main_~var_vhost_net_compat_ioctl_28_p2~0#1, main_~res_vhost_net_open_13~0#1, main_~ldv_s_vhost_net_fops_file_operations~0#1, main_~tmp~72#1, main_~tmp___0~50#1, main_~tmp___1~35#1;havoc main_~var_group1~0#1.base, main_~var_group1~0#1.offset;havoc main_~var_group2~0#1.base, main_~var_group2~0#1.offset;havoc main_~var_vhost_net_ioctl_27_p1~0#1;havoc main_~var_vhost_net_ioctl_27_p2~0#1;havoc main_~var_vhost_net_compat_ioctl_28_p1~0#1;havoc main_~var_vhost_net_compat_ioctl_28_p2~0#1;havoc main_~res_vhost_net_open_13~0#1;havoc main_~ldv_s_vhost_net_fops_file_operations~0#1;havoc main_~tmp~72#1;havoc main_~tmp___0~50#1;havoc main_~tmp___1~35#1;main_~ldv_s_vhost_net_fops_file_operations~0#1 := 0;~LDV_IN_INTERRUPT~0 := 1;assume { :begin_inline_ldv_initialize } true;~ldv_mutex_cred_guard_mutex~0 := 1;~ldv_mutex_lock~0 := 1;~ldv_mutex_mtx~0 := 1;~ldv_mutex_mutex~0 := 1; {26836#(= ~ldv_mutex_mtx~0 1)} is VALID [2022-02-20 21:35:41,676 INFO L290 TraceCheckUtils]: 2: Hoare triple {26836#(= ~ldv_mutex_mtx~0 1)} assume { :end_inline_ldv_initialize } true; {26836#(= ~ldv_mutex_mtx~0 1)} is VALID [2022-02-20 21:35:41,676 INFO L272 TraceCheckUtils]: 3: Hoare triple {26836#(= ~ldv_mutex_mtx~0 1)} call ldv_handler_precall(); {26834#true} is VALID [2022-02-20 21:35:41,676 INFO L290 TraceCheckUtils]: 4: Hoare triple {26834#true} assume true; {26834#true} is VALID [2022-02-20 21:35:41,676 INFO L284 TraceCheckUtils]: 5: Hoare quadruple {26834#true} {26836#(= ~ldv_mutex_mtx~0 1)} #5972#return; {26836#(= ~ldv_mutex_mtx~0 1)} is VALID [2022-02-20 21:35:41,677 INFO L290 TraceCheckUtils]: 6: Hoare triple {26836#(= ~ldv_mutex_mtx~0 1)} assume { :begin_inline_vhost_net_init } true;havoc vhost_net_init_#res#1;havoc vhost_net_init_#t~ret1236#1, vhost_net_init_~tmp~71#1;havoc vhost_net_init_~tmp~71#1; {26836#(= ~ldv_mutex_mtx~0 1)} is VALID [2022-02-20 21:35:41,677 INFO L290 TraceCheckUtils]: 7: Hoare triple {26836#(= ~ldv_mutex_mtx~0 1)} assume !(0 != ~experimental_zcopytx~0); {26836#(= ~ldv_mutex_mtx~0 1)} is VALID [2022-02-20 21:35:41,677 INFO L290 TraceCheckUtils]: 8: Hoare triple {26836#(= ~ldv_mutex_mtx~0 1)} assume { :begin_inline_misc_register } true;misc_register_#in~arg0#1.base, misc_register_#in~arg0#1.offset := ~#vhost_net_misc~0.base, ~#vhost_net_misc~0.offset;havoc misc_register_#res#1;havoc misc_register_#t~nondet1289#1, misc_register_~arg0#1.base, misc_register_~arg0#1.offset;misc_register_~arg0#1.base, misc_register_~arg0#1.offset := misc_register_#in~arg0#1.base, misc_register_#in~arg0#1.offset;assume -2147483648 <= misc_register_#t~nondet1289#1 && misc_register_#t~nondet1289#1 <= 2147483647;misc_register_#res#1 := misc_register_#t~nondet1289#1;havoc misc_register_#t~nondet1289#1; {26836#(= ~ldv_mutex_mtx~0 1)} is VALID [2022-02-20 21:35:41,678 INFO L290 TraceCheckUtils]: 9: Hoare triple {26836#(= ~ldv_mutex_mtx~0 1)} vhost_net_init_#t~ret1236#1 := misc_register_#res#1;assume { :end_inline_misc_register } true;assume -2147483648 <= vhost_net_init_#t~ret1236#1 && vhost_net_init_#t~ret1236#1 <= 2147483647;vhost_net_init_~tmp~71#1 := vhost_net_init_#t~ret1236#1;havoc vhost_net_init_#t~ret1236#1;vhost_net_init_#res#1 := vhost_net_init_~tmp~71#1; {26836#(= ~ldv_mutex_mtx~0 1)} is VALID [2022-02-20 21:35:41,680 INFO L290 TraceCheckUtils]: 10: Hoare triple {26836#(= ~ldv_mutex_mtx~0 1)} main_#t~ret1239#1 := vhost_net_init_#res#1;assume { :end_inline_vhost_net_init } true;assume -2147483648 <= main_#t~ret1239#1 && main_#t~ret1239#1 <= 2147483647;main_~tmp~72#1 := main_#t~ret1239#1;havoc main_#t~ret1239#1; {26836#(= ~ldv_mutex_mtx~0 1)} is VALID [2022-02-20 21:35:41,680 INFO L290 TraceCheckUtils]: 11: Hoare triple {26836#(= ~ldv_mutex_mtx~0 1)} assume 0 != main_~tmp~72#1; {26836#(= ~ldv_mutex_mtx~0 1)} is VALID [2022-02-20 21:35:41,681 INFO L290 TraceCheckUtils]: 12: Hoare triple {26836#(= ~ldv_mutex_mtx~0 1)} assume { :begin_inline_ldv_check_final_state } true; {26836#(= ~ldv_mutex_mtx~0 1)} is VALID [2022-02-20 21:35:41,681 INFO L290 TraceCheckUtils]: 13: Hoare triple {26836#(= ~ldv_mutex_mtx~0 1)} assume 1 == ~ldv_mutex_cred_guard_mutex~0; {26836#(= ~ldv_mutex_mtx~0 1)} is VALID [2022-02-20 21:35:41,682 INFO L290 TraceCheckUtils]: 14: Hoare triple {26836#(= ~ldv_mutex_mtx~0 1)} assume 1 == ~ldv_mutex_lock~0; {26836#(= ~ldv_mutex_mtx~0 1)} is VALID [2022-02-20 21:35:41,683 INFO L290 TraceCheckUtils]: 15: Hoare triple {26836#(= ~ldv_mutex_mtx~0 1)} assume !(1 == ~ldv_mutex_mtx~0); {26835#false} is VALID [2022-02-20 21:35:41,683 INFO L272 TraceCheckUtils]: 16: Hoare triple {26835#false} call ldv_error(); {26835#false} is VALID [2022-02-20 21:35:41,683 INFO L290 TraceCheckUtils]: 17: Hoare triple {26835#false} assume !false; {26835#false} is VALID [2022-02-20 21:35:41,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 21:35:41,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 21:35:41,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966930012] [2022-02-20 21:35:41,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966930012] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 21:35:41,684 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 21:35:41,684 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 21:35:41,684 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919344283] [2022-02-20 21:35:41,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 21:35:41,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-02-20 21:35:41,685 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 21:35:41,685 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:35:41,708 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 21:35:41,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 21:35:41,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 21:35:41,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 21:35:41,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 21:35:41,709 INFO L87 Difference]: Start difference. First operand 2236 states and 3232 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:35:48,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 21:35:48,286 INFO L93 Difference]: Finished difference Result 2238 states and 3233 transitions. [2022-02-20 21:35:48,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 21:35:48,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-02-20 21:35:48,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 21:35:48,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:35:48,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3233 transitions. [2022-02-20 21:35:48,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:35:48,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3233 transitions. [2022-02-20 21:35:48,552 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 3233 transitions. [2022-02-20 21:35:50,370 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 3233 edges. 3233 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 21:35:50,632 INFO L225 Difference]: With dead ends: 2238 [2022-02-20 21:35:50,632 INFO L226 Difference]: Without dead ends: 2235 [2022-02-20 21:35:50,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 21:35:50,634 INFO L933 BasicCegarLoop]: 3229 mSDtfsCounter, 3217 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3217 SdHoareTripleChecker+Valid, 3229 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 21:35:50,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3217 Valid, 3229 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 21:35:50,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2022-02-20 21:35:50,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 2235. [2022-02-20 21:35:50,732 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 21:35:50,736 INFO L82 GeneralOperation]: Start isEquivalent. First operand 2235 states. Second operand has 2235 states, 1551 states have (on average 1.3417150225660863) internal successors, (2081), 1592 states have internal predecessors, (2081), 576 states have call successors, (576), 108 states have call predecessors, (576), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2022-02-20 21:35:50,739 INFO L74 IsIncluded]: Start isIncluded. First operand 2235 states. Second operand has 2235 states, 1551 states have (on average 1.3417150225660863) internal successors, (2081), 1592 states have internal predecessors, (2081), 576 states have call successors, (576), 108 states have call predecessors, (576), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2022-02-20 21:35:50,742 INFO L87 Difference]: Start difference. First operand 2235 states. Second operand has 2235 states, 1551 states have (on average 1.3417150225660863) internal successors, (2081), 1592 states have internal predecessors, (2081), 576 states have call successors, (576), 108 states have call predecessors, (576), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2022-02-20 21:35:50,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 21:35:50,910 INFO L93 Difference]: Finished difference Result 2235 states and 3230 transitions. [2022-02-20 21:35:50,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 3230 transitions. [2022-02-20 21:35:50,926 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 21:35:50,926 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 21:35:50,930 INFO L74 IsIncluded]: Start isIncluded. First operand has 2235 states, 1551 states have (on average 1.3417150225660863) internal successors, (2081), 1592 states have internal predecessors, (2081), 576 states have call successors, (576), 108 states have call predecessors, (576), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) Second operand 2235 states. [2022-02-20 21:35:50,934 INFO L87 Difference]: Start difference. First operand has 2235 states, 1551 states have (on average 1.3417150225660863) internal successors, (2081), 1592 states have internal predecessors, (2081), 576 states have call successors, (576), 108 states have call predecessors, (576), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) Second operand 2235 states. [2022-02-20 21:35:51,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 21:35:51,100 INFO L93 Difference]: Finished difference Result 2235 states and 3230 transitions. [2022-02-20 21:35:51,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 3230 transitions. [2022-02-20 21:35:51,109 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 21:35:51,109 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 21:35:51,109 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 21:35:51,109 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 21:35:51,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2235 states, 1551 states have (on average 1.3417150225660863) internal successors, (2081), 1592 states have internal predecessors, (2081), 576 states have call successors, (576), 108 states have call predecessors, (576), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2022-02-20 21:35:51,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 3230 transitions. [2022-02-20 21:35:51,367 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 3230 transitions. Word has length 18 [2022-02-20 21:35:51,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 21:35:51,368 INFO L470 AbstractCegarLoop]: Abstraction has 2235 states and 3230 transitions. [2022-02-20 21:35:51,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:35:51,368 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 3230 transitions. [2022-02-20 21:35:51,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-02-20 21:35:51,369 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 21:35:51,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 21:35:51,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-20 21:35:51,369 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 21:35:51,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 21:35:51,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1126423667, now seen corresponding path program 1 times [2022-02-20 21:35:51,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 21:35:51,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029664892] [2022-02-20 21:35:51,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 21:35:51,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 21:35:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 21:35:51,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-02-20 21:35:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 21:35:51,447 INFO L290 TraceCheckUtils]: 0: Hoare triple {37552#true} assume true; {37552#true} is VALID [2022-02-20 21:35:51,448 INFO L284 TraceCheckUtils]: 1: Hoare quadruple {37552#true} {37554#(= ~ldv_mutex_mutex~0 1)} #5972#return; {37554#(= ~ldv_mutex_mutex~0 1)} is VALID [2022-02-20 21:35:51,448 INFO L290 TraceCheckUtils]: 0: Hoare triple {37552#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(55, 2);call #Ultimate.allocInit(25, 3);call #Ultimate.allocInit(42, 4);call #Ultimate.allocInit(25, 5);call #Ultimate.allocInit(44, 6);call #Ultimate.allocInit(21, 7);call #Ultimate.allocInit(105, 8);call #Ultimate.allocInit(27, 9);call #Ultimate.allocInit(12, 10);call #Ultimate.allocInit(12, 11);call #Ultimate.allocInit(26, 12);call #Ultimate.allocInit(19, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(200, 15);call #Ultimate.allocInit(45, 16);call #Ultimate.allocInit(200, 17);call #Ultimate.allocInit(200, 18);call #Ultimate.allocInit(45, 19);call #Ultimate.allocInit(200, 20);call #Ultimate.allocInit(45, 21);call #Ultimate.allocInit(200, 22);call #Ultimate.allocInit(45, 23);call #Ultimate.allocInit(200, 24);call #Ultimate.allocInit(41, 25);call #Ultimate.allocInit(10, 26);call #Ultimate.allocInit(13, 27);call #Ultimate.allocInit(200, 28);call #Ultimate.allocInit(73, 29);call #Ultimate.allocInit(73, 30);call #Ultimate.allocInit(10, 31);call #Ultimate.allocInit(13, 32);call #Ultimate.allocInit(200, 33);call #Ultimate.allocInit(37, 34);call #Ultimate.allocInit(37, 35);call #Ultimate.allocInit(10, 36);call #Ultimate.allocInit(13, 37);call #Ultimate.allocInit(200, 38);call #Ultimate.allocInit(36, 39);call #Ultimate.allocInit(36, 40);call #Ultimate.allocInit(10, 41);call #Ultimate.allocInit(13, 42);call #Ultimate.allocInit(200, 43);call #Ultimate.allocInit(48, 44);call #Ultimate.allocInit(48, 45);call #Ultimate.allocInit(10, 46);call #Ultimate.allocInit(13, 47);call #Ultimate.allocInit(200, 48);call #Ultimate.allocInit(41, 49);call #Ultimate.allocInit(41, 50);call #Ultimate.allocInit(10, 51);call #Ultimate.allocInit(13, 52);call #Ultimate.allocInit(200, 53);call #Ultimate.allocInit(41, 54);call #Ultimate.allocInit(41, 55);call #Ultimate.allocInit(10, 56);call #Ultimate.allocInit(13, 57);call #Ultimate.allocInit(200, 58);call #Ultimate.allocInit(40, 59);call #Ultimate.allocInit(40, 60);call #Ultimate.allocInit(10, 61);call #Ultimate.allocInit(13, 62);call #Ultimate.allocInit(200, 63);call #Ultimate.allocInit(46, 64);call #Ultimate.allocInit(46, 65);call #Ultimate.allocInit(10, 66);call #Ultimate.allocInit(18, 67);call #Ultimate.allocInit(200, 68);call #Ultimate.allocInit(34, 69);call #Ultimate.allocInit(34, 70);call #Ultimate.allocInit(10, 71);call #Ultimate.allocInit(18, 72);call #Ultimate.allocInit(200, 73);call #Ultimate.allocInit(37, 74);call #Ultimate.allocInit(37, 75);call #Ultimate.allocInit(10, 76);call #Ultimate.allocInit(18, 77);call #Ultimate.allocInit(200, 78);call #Ultimate.allocInit(40, 79);call #Ultimate.allocInit(40, 80);call #Ultimate.allocInit(10, 81);call #Ultimate.allocInit(18, 82);call #Ultimate.allocInit(200, 83);call #Ultimate.allocInit(38, 84);call #Ultimate.allocInit(38, 85);call #Ultimate.allocInit(10, 86);call #Ultimate.allocInit(18, 87);call #Ultimate.allocInit(200, 88);call #Ultimate.allocInit(33, 89);call #Ultimate.allocInit(33, 90);call #Ultimate.allocInit(10, 91);call #Ultimate.allocInit(18, 92);call #Ultimate.allocInit(200, 93);call #Ultimate.allocInit(50, 94);call #Ultimate.allocInit(50, 95);call #Ultimate.allocInit(10, 96);call #Ultimate.allocInit(18, 97);call #Ultimate.allocInit(200, 98);call #Ultimate.allocInit(42, 99);call #Ultimate.allocInit(42, 100);call #Ultimate.allocInit(10, 101);call #Ultimate.allocInit(18, 102);call #Ultimate.allocInit(200, 103);call #Ultimate.allocInit(51, 104);call #Ultimate.allocInit(51, 105);call #Ultimate.allocInit(10, 106);call #Ultimate.allocInit(18, 107);call #Ultimate.allocInit(200, 108);call #Ultimate.allocInit(42, 109);call #Ultimate.allocInit(42, 110);call #Ultimate.allocInit(10, 111);call #Ultimate.allocInit(18, 112);call #Ultimate.allocInit(200, 113);call #Ultimate.allocInit(37, 114);call #Ultimate.allocInit(37, 115);call #Ultimate.allocInit(10, 116);call #Ultimate.allocInit(15, 117);call #Ultimate.allocInit(200, 118);call #Ultimate.allocInit(24, 119);call #Ultimate.allocInit(24, 120);call #Ultimate.allocInit(10, 121);call #Ultimate.allocInit(15, 122);call #Ultimate.allocInit(200, 123);call #Ultimate.allocInit(25, 124);call #Ultimate.allocInit(25, 125);call #Ultimate.allocInit(10, 126);call #Ultimate.allocInit(15, 127);call #Ultimate.allocInit(200, 128);call #Ultimate.allocInit(29, 129);call #Ultimate.allocInit(29, 130);call #Ultimate.allocInit(10, 131);call #Ultimate.allocInit(19, 132);call #Ultimate.allocInit(200, 133);call #Ultimate.allocInit(21, 134);call #Ultimate.allocInit(21, 135);call #Ultimate.allocInit(10, 136);call #Ultimate.allocInit(17, 137);call #Ultimate.allocInit(200, 138);call #Ultimate.allocInit(29, 139);call #Ultimate.allocInit(29, 140);call #Ultimate.allocInit(10, 141);call #Ultimate.allocInit(13, 142);call #Ultimate.allocInit(200, 143);call #Ultimate.allocInit(20, 144);call #Ultimate.allocInit(20, 145);call #Ultimate.allocInit(10, 146);call #Ultimate.allocInit(13, 147);call #Ultimate.allocInit(200, 148);call #Ultimate.allocInit(29, 149);call #Ultimate.allocInit(29, 150);call #Ultimate.allocInit(10, 151);call #Ultimate.allocInit(20, 152);call #Ultimate.allocInit(200, 153);call #Ultimate.allocInit(41, 154);call #Ultimate.allocInit(41, 155);call #Ultimate.allocInit(10, 156);call #Ultimate.allocInit(20, 157);call #Ultimate.allocInit(200, 158);call #Ultimate.allocInit(46, 159);call #Ultimate.allocInit(46, 160);call #Ultimate.allocInit(10, 161);call #Ultimate.allocInit(20, 162);call #Ultimate.allocInit(200, 163);call #Ultimate.allocInit(37, 164);call #Ultimate.allocInit(37, 165);call #Ultimate.allocInit(10, 166);call #Ultimate.allocInit(21, 167);call #Ultimate.allocInit(200, 168);call #Ultimate.allocInit(41, 169);call #Ultimate.allocInit(41, 170);call #Ultimate.allocInit(13, 171);call #Ultimate.allocInit(21, 172);call #Ultimate.allocInit(10, 173);call #Ultimate.allocInit(10, 174);call #Ultimate.allocInit(198, 175);call #Ultimate.allocInit(53, 176);call #Ultimate.allocInit(53, 177);call #Ultimate.allocInit(10, 178);call #Ultimate.allocInit(10, 179);call #Ultimate.allocInit(198, 180);call #Ultimate.allocInit(48, 181);call #Ultimate.allocInit(48, 182);call #Ultimate.allocInit(10, 183);call #Ultimate.allocInit(10, 184);call #Ultimate.allocInit(198, 185);call #Ultimate.allocInit(37, 186);call #Ultimate.allocInit(37, 187);call #Ultimate.allocInit(10, 188);call #Ultimate.allocInit(12, 189);call #Ultimate.allocInit(198, 190);call #Ultimate.allocInit(52, 191);call #Ultimate.allocInit(52, 192);call #Ultimate.allocInit(10, 193);call #Ultimate.allocInit(10, 194);call #Ultimate.allocInit(198, 195);call #Ultimate.allocInit(44, 196);call #Ultimate.allocInit(44, 197);call #Ultimate.allocInit(10, 198);call #Ultimate.allocInit(10, 199);call #Ultimate.allocInit(198, 200);call #Ultimate.allocInit(37, 201);call #Ultimate.allocInit(37, 202);call #Ultimate.allocInit(10, 203);call #Ultimate.allocInit(10, 204);call #Ultimate.allocInit(198, 205);call #Ultimate.allocInit(25, 206);call #Ultimate.allocInit(25, 207);call #Ultimate.allocInit(198, 208);call #Ultimate.allocInit(45, 209);call #Ultimate.allocInit(198, 210);call #Ultimate.allocInit(45, 211);call #Ultimate.allocInit(198, 212);call #Ultimate.allocInit(45, 213);call #Ultimate.allocInit(10, 214);~vhost_zcopy_mask~0 := 0;~experimental_zcopytx~0 := 0;~#vhost_net_fops~0.base, ~#vhost_net_fops~0.offset := 215, 0;call #Ultimate.allocInit(208, 215);call write~init~$Pointer$(~#__this_module~0.base, ~#__this_module~0.offset, ~#vhost_net_fops~0.base, ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~noop_llseek.base, #funAddr~noop_llseek.offset, ~#vhost_net_fops~0.base, 8 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 16 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 24 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 32 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 40 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 48 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 56 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~vhost_net_ioctl.base, #funAddr~vhost_net_ioctl.offset, ~#vhost_net_fops~0.base, 64 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~vhost_net_compat_ioctl.base, #funAddr~vhost_net_compat_ioctl.offset, ~#vhost_net_fops~0.base, 72 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 80 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~vhost_net_open.base, #funAddr~vhost_net_open.offset, ~#vhost_net_fops~0.base, 88 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 96 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(#funAddr~vhost_net_release.base, #funAddr~vhost_net_release.offset, ~#vhost_net_fops~0.base, 104 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 112 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 120 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 128 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 136 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 144 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 152 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 160 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 168 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 176 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 184 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 192 + ~#vhost_net_fops~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_fops~0.base, 200 + ~#vhost_net_fops~0.offset, 8);~#vhost_net_misc~0.base, ~#vhost_net_misc~0.offset := 216, 0;call #Ultimate.allocInit(62, 216);call write~init~int(238, ~#vhost_net_misc~0.base, ~#vhost_net_misc~0.offset, 4);call write~init~$Pointer$(214, 0, ~#vhost_net_misc~0.base, 4 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(~#vhost_net_fops~0.base, ~#vhost_net_fops~0.offset, ~#vhost_net_misc~0.base, 12 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 20 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 28 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 36 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 44 + ~#vhost_net_misc~0.offset, 8);call write~init~$Pointer$(0, 0, ~#vhost_net_misc~0.base, 52 + ~#vhost_net_misc~0.offset, 8);call write~init~int(0, ~#vhost_net_misc~0.base, 60 + ~#vhost_net_misc~0.offset, 2);~LDV_IN_INTERRUPT~0 := 0;~ldv_mutex_cred_guard_mutex~0 := 0;~ldv_mutex_lock~0 := 0;~ldv_mutex_mtx~0 := 0;~ldv_mutex_mutex~0 := 0; {37552#true} is VALID [2022-02-20 21:35:51,448 INFO L290 TraceCheckUtils]: 1: Hoare triple {37552#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret1239#1, main_#t~nondet1240#1, main_#t~switch1241#1, main_#t~ret1242#1, main_#t~ret1243#1, main_#t~ret1244#1, main_#t~ret1245#1, main_#t~nondet1246#1, main_~var_group1~0#1.base, main_~var_group1~0#1.offset, main_~var_group2~0#1.base, main_~var_group2~0#1.offset, main_~var_vhost_net_ioctl_27_p1~0#1, main_~var_vhost_net_ioctl_27_p2~0#1, main_~var_vhost_net_compat_ioctl_28_p1~0#1, main_~var_vhost_net_compat_ioctl_28_p2~0#1, main_~res_vhost_net_open_13~0#1, main_~ldv_s_vhost_net_fops_file_operations~0#1, main_~tmp~72#1, main_~tmp___0~50#1, main_~tmp___1~35#1;havoc main_~var_group1~0#1.base, main_~var_group1~0#1.offset;havoc main_~var_group2~0#1.base, main_~var_group2~0#1.offset;havoc main_~var_vhost_net_ioctl_27_p1~0#1;havoc main_~var_vhost_net_ioctl_27_p2~0#1;havoc main_~var_vhost_net_compat_ioctl_28_p1~0#1;havoc main_~var_vhost_net_compat_ioctl_28_p2~0#1;havoc main_~res_vhost_net_open_13~0#1;havoc main_~ldv_s_vhost_net_fops_file_operations~0#1;havoc main_~tmp~72#1;havoc main_~tmp___0~50#1;havoc main_~tmp___1~35#1;main_~ldv_s_vhost_net_fops_file_operations~0#1 := 0;~LDV_IN_INTERRUPT~0 := 1;assume { :begin_inline_ldv_initialize } true;~ldv_mutex_cred_guard_mutex~0 := 1;~ldv_mutex_lock~0 := 1;~ldv_mutex_mtx~0 := 1;~ldv_mutex_mutex~0 := 1; {37554#(= ~ldv_mutex_mutex~0 1)} is VALID [2022-02-20 21:35:51,449 INFO L290 TraceCheckUtils]: 2: Hoare triple {37554#(= ~ldv_mutex_mutex~0 1)} assume { :end_inline_ldv_initialize } true; {37554#(= ~ldv_mutex_mutex~0 1)} is VALID [2022-02-20 21:35:51,449 INFO L272 TraceCheckUtils]: 3: Hoare triple {37554#(= ~ldv_mutex_mutex~0 1)} call ldv_handler_precall(); {37552#true} is VALID [2022-02-20 21:35:51,449 INFO L290 TraceCheckUtils]: 4: Hoare triple {37552#true} assume true; {37552#true} is VALID [2022-02-20 21:35:51,449 INFO L284 TraceCheckUtils]: 5: Hoare quadruple {37552#true} {37554#(= ~ldv_mutex_mutex~0 1)} #5972#return; {37554#(= ~ldv_mutex_mutex~0 1)} is VALID [2022-02-20 21:35:51,450 INFO L290 TraceCheckUtils]: 6: Hoare triple {37554#(= ~ldv_mutex_mutex~0 1)} assume { :begin_inline_vhost_net_init } true;havoc vhost_net_init_#res#1;havoc vhost_net_init_#t~ret1236#1, vhost_net_init_~tmp~71#1;havoc vhost_net_init_~tmp~71#1; {37554#(= ~ldv_mutex_mutex~0 1)} is VALID [2022-02-20 21:35:51,450 INFO L290 TraceCheckUtils]: 7: Hoare triple {37554#(= ~ldv_mutex_mutex~0 1)} assume !(0 != ~experimental_zcopytx~0); {37554#(= ~ldv_mutex_mutex~0 1)} is VALID [2022-02-20 21:35:51,450 INFO L290 TraceCheckUtils]: 8: Hoare triple {37554#(= ~ldv_mutex_mutex~0 1)} assume { :begin_inline_misc_register } true;misc_register_#in~arg0#1.base, misc_register_#in~arg0#1.offset := ~#vhost_net_misc~0.base, ~#vhost_net_misc~0.offset;havoc misc_register_#res#1;havoc misc_register_#t~nondet1289#1, misc_register_~arg0#1.base, misc_register_~arg0#1.offset;misc_register_~arg0#1.base, misc_register_~arg0#1.offset := misc_register_#in~arg0#1.base, misc_register_#in~arg0#1.offset;assume -2147483648 <= misc_register_#t~nondet1289#1 && misc_register_#t~nondet1289#1 <= 2147483647;misc_register_#res#1 := misc_register_#t~nondet1289#1;havoc misc_register_#t~nondet1289#1; {37554#(= ~ldv_mutex_mutex~0 1)} is VALID [2022-02-20 21:35:51,451 INFO L290 TraceCheckUtils]: 9: Hoare triple {37554#(= ~ldv_mutex_mutex~0 1)} vhost_net_init_#t~ret1236#1 := misc_register_#res#1;assume { :end_inline_misc_register } true;assume -2147483648 <= vhost_net_init_#t~ret1236#1 && vhost_net_init_#t~ret1236#1 <= 2147483647;vhost_net_init_~tmp~71#1 := vhost_net_init_#t~ret1236#1;havoc vhost_net_init_#t~ret1236#1;vhost_net_init_#res#1 := vhost_net_init_~tmp~71#1; {37554#(= ~ldv_mutex_mutex~0 1)} is VALID [2022-02-20 21:35:51,451 INFO L290 TraceCheckUtils]: 10: Hoare triple {37554#(= ~ldv_mutex_mutex~0 1)} main_#t~ret1239#1 := vhost_net_init_#res#1;assume { :end_inline_vhost_net_init } true;assume -2147483648 <= main_#t~ret1239#1 && main_#t~ret1239#1 <= 2147483647;main_~tmp~72#1 := main_#t~ret1239#1;havoc main_#t~ret1239#1; {37554#(= ~ldv_mutex_mutex~0 1)} is VALID [2022-02-20 21:35:51,451 INFO L290 TraceCheckUtils]: 11: Hoare triple {37554#(= ~ldv_mutex_mutex~0 1)} assume 0 != main_~tmp~72#1; {37554#(= ~ldv_mutex_mutex~0 1)} is VALID [2022-02-20 21:35:51,451 INFO L290 TraceCheckUtils]: 12: Hoare triple {37554#(= ~ldv_mutex_mutex~0 1)} assume { :begin_inline_ldv_check_final_state } true; {37554#(= ~ldv_mutex_mutex~0 1)} is VALID [2022-02-20 21:35:51,452 INFO L290 TraceCheckUtils]: 13: Hoare triple {37554#(= ~ldv_mutex_mutex~0 1)} assume 1 == ~ldv_mutex_cred_guard_mutex~0; {37554#(= ~ldv_mutex_mutex~0 1)} is VALID [2022-02-20 21:35:51,452 INFO L290 TraceCheckUtils]: 14: Hoare triple {37554#(= ~ldv_mutex_mutex~0 1)} assume 1 == ~ldv_mutex_lock~0; {37554#(= ~ldv_mutex_mutex~0 1)} is VALID [2022-02-20 21:35:51,452 INFO L290 TraceCheckUtils]: 15: Hoare triple {37554#(= ~ldv_mutex_mutex~0 1)} assume 1 == ~ldv_mutex_mtx~0; {37554#(= ~ldv_mutex_mutex~0 1)} is VALID [2022-02-20 21:35:51,453 INFO L290 TraceCheckUtils]: 16: Hoare triple {37554#(= ~ldv_mutex_mutex~0 1)} assume !(1 == ~ldv_mutex_mutex~0); {37553#false} is VALID [2022-02-20 21:35:51,453 INFO L272 TraceCheckUtils]: 17: Hoare triple {37553#false} call ldv_error(); {37553#false} is VALID [2022-02-20 21:35:51,453 INFO L290 TraceCheckUtils]: 18: Hoare triple {37553#false} assume !false; {37553#false} is VALID [2022-02-20 21:35:51,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 21:35:51,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 21:35:51,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029664892] [2022-02-20 21:35:51,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029664892] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 21:35:51,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 21:35:51,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 21:35:51,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91821017] [2022-02-20 21:35:51,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 21:35:51,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-02-20 21:35:51,455 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 21:35:51,455 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:35:51,479 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 21:35:51,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 21:35:51,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 21:35:51,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 21:35:51,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 21:35:51,481 INFO L87 Difference]: Start difference. First operand 2235 states and 3230 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:36:04,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 21:36:04,855 INFO L93 Difference]: Finished difference Result 5156 states and 7405 transitions. [2022-02-20 21:36:04,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 21:36:04,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-02-20 21:36:04,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 21:36:04,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:36:05,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7405 transitions. [2022-02-20 21:36:05,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 21:36:05,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7405 transitions. [2022-02-20 21:36:05,444 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 7405 transitions.