./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8d123e3c2a314a098b4e7a140b822a7b44f2ae282ca90c74ec5605a44f397143 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 06:54:30,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 06:54:30,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 06:54:30,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 06:54:30,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 06:54:30,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 06:54:30,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 06:54:30,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 06:54:30,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 06:54:30,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 06:54:30,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 06:54:30,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 06:54:30,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 06:54:30,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 06:54:30,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 06:54:30,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 06:54:30,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 06:54:30,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 06:54:30,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 06:54:30,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 06:54:30,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 06:54:30,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 06:54:30,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 06:54:30,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 06:54:30,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 06:54:30,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 06:54:30,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 06:54:30,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 06:54:30,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 06:54:30,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 06:54:30,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 06:54:30,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 06:54:30,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 06:54:30,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 06:54:30,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 06:54:30,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 06:54:30,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 06:54:30,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 06:54:30,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 06:54:30,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 06:54:30,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 06:54:30,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 06:54:30,185 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 06:54:30,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 06:54:30,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 06:54:30,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 06:54:30,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 06:54:30,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 06:54:30,189 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 06:54:30,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 06:54:30,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 06:54:30,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 06:54:30,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 06:54:30,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 06:54:30,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 06:54:30,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 06:54:30,192 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 06:54:30,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 06:54:30,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 06:54:30,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 06:54:30,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 06:54:30,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 06:54:30,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 06:54:30,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 06:54:30,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 06:54:30,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 06:54:30,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 06:54:30,194 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 06:54:30,194 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 06:54:30,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 06:54:30,194 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 06:54:30,195 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d123e3c2a314a098b4e7a140b822a7b44f2ae282ca90c74ec5605a44f397143 [2021-11-04 06:54:30,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 06:54:30,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 06:54:30,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 06:54:30,455 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 06:54:30,456 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 06:54:30,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i [2021-11-04 06:54:30,533 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eca1c5ed2/876f119510ff460980126e544f5c9a5f/FLAG719bdbe1f [2021-11-04 06:54:31,415 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 06:54:31,417 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i [2021-11-04 06:54:31,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eca1c5ed2/876f119510ff460980126e544f5c9a5f/FLAG719bdbe1f [2021-11-04 06:54:31,837 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eca1c5ed2/876f119510ff460980126e544f5c9a5f [2021-11-04 06:54:31,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 06:54:31,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 06:54:31,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 06:54:31,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 06:54:31,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 06:54:31,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 06:54:31" (1/1) ... [2021-11-04 06:54:31,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e7f1fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:54:31, skipping insertion in model container [2021-11-04 06:54:31,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 06:54:31" (1/1) ... [2021-11-04 06:54:31,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 06:54:32,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 06:54:37,168 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i[490207,490220] [2021-11-04 06:54:37,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 06:54:37,701 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 06:54:38,189 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i[490207,490220] [2021-11-04 06:54:38,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 06:54:38,475 INFO L208 MainTranslator]: Completed translation [2021-11-04 06:54:38,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:54:38 WrapperNode [2021-11-04 06:54:38,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 06:54:38,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 06:54:38,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 06:54:38,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 06:54:38,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:54:38" (1/1) ... [2021-11-04 06:54:38,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:54:38" (1/1) ... [2021-11-04 06:54:40,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 06:54:40,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 06:54:40,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 06:54:40,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 06:54:40,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:54:38" (1/1) ... [2021-11-04 06:54:40,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:54:38" (1/1) ... [2021-11-04 06:54:40,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:54:38" (1/1) ... [2021-11-04 06:54:40,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:54:38" (1/1) ... [2021-11-04 06:54:41,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:54:38" (1/1) ... [2021-11-04 06:54:42,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:54:38" (1/1) ... [2021-11-04 06:54:42,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:54:38" (1/1) ... [2021-11-04 06:54:42,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 06:54:42,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 06:54:42,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 06:54:42,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 06:54:42,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:54:38" (1/1) ... [2021-11-04 06:54:42,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 06:54:42,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 06:54:42,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-04 06:54:42,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-04 06:54:42,955 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_send [2021-11-04 06:54:42,955 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_send [2021-11-04 06:54:42,955 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_put [2021-11-04 06:54:42,955 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_put [2021-11-04 06:54:42,955 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_destroy [2021-11-04 06:54:42,955 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_destroy [2021-11-04 06:54:42,955 INFO L130 BoogieDeclarations]: Found specification of procedure dbell_delayed_dispatch [2021-11-04 06:54:42,955 INFO L138 BoogieDeclarations]: Found implementation of procedure dbell_delayed_dispatch [2021-11-04 06:54:42,956 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-04 06:54:42,956 INFO L130 BoogieDeclarations]: Found specification of procedure dg_delayed_dispatch [2021-11-04 06:54:42,956 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_delayed_dispatch [2021-11-04 06:54:42,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 06:54:42,956 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_host [2021-11-04 06:54:42,956 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_host [2021-11-04 06:54:42,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 06:54:42,956 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_dispatch [2021-11-04 06:54:42,956 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_dispatch [2021-11-04 06:54:42,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 06:54:42,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 06:54:42,957 INFO L130 BoogieDeclarations]: Found specification of procedure qp_notify_peer [2021-11-04 06:54:42,957 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_notify_peer [2021-11-04 06:54:42,957 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-04 06:54:42,957 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-04 06:54:42,957 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_fire_notification [2021-11-04 06:54:42,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_fire_notification [2021-11-04 06:54:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 06:54:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_close [2021-11-04 06:54:42,958 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_close [2021-11-04 06:54:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 06:54:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 06:54:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_free_ctx [2021-11-04 06:54:42,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_free_ctx [2021-11-04 06:54:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 06:54:42,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-04 06:54:42,959 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-04 06:54:42,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-04 06:54:42,959 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_guest_work [2021-11-04 06:54:42,959 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_guest_work [2021-11-04 06:54:42,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 06:54:42,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 06:54:42,959 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-04 06:54:42,959 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-04 06:54:42,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 06:54:42,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 06:54:42,960 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_broker_detach [2021-11-04 06:54:42,960 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_broker_detach [2021-11-04 06:54:42,960 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_enqueue_datagram [2021-11-04 06:54:42,960 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_enqueue_datagram [2021-11-04 06:54:42,960 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qpair_detach [2021-11-04 06:54:42,961 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qpair_detach [2021-11-04 06:54:42,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 06:54:42,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 06:54:42,961 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_host_work [2021-11-04 06:54:42,961 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_host_work [2021-11-04 06:54:42,961 INFO L130 BoogieDeclarations]: Found specification of procedure qp_guest_endpoint_destroy [2021-11-04 06:54:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_guest_endpoint_destroy [2021-11-04 06:54:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 06:54:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_guest [2021-11-04 06:54:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_guest [2021-11-04 06:54:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_get_priv_flags [2021-11-04 06:54:42,962 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_get_priv_flags [2021-11-04 06:54:42,962 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_remove [2021-11-04 06:54:42,963 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_remove [2021-11-04 06:54:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 06:54:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_context_get_priv_flags [2021-11-04 06:54:42,963 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_context_get_priv_flags [2021-11-04 06:54:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_guest_endpoints_exit [2021-11-04 06:54:42,963 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_guest_endpoints_exit [2021-11-04 06:54:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch [2021-11-04 06:54:42,964 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch [2021-11-04 06:54:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_remove_device [2021-11-04 06:54:42,964 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_remove_device [2021-11-04 06:54:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-04 06:54:42,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-04 06:54:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 06:54:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_put [2021-11-04 06:54:42,969 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_put [2021-11-04 06:55:04,914 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 06:55:04,914 INFO L299 CfgBuilder]: Removed 8979 assume(true) statements. [2021-11-04 06:55:04,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 06:55:04 BoogieIcfgContainer [2021-11-04 06:55:04,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 06:55:04,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 06:55:04,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 06:55:04,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 06:55:04,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 06:54:31" (1/3) ... [2021-11-04 06:55:04,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1155e56f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 06:55:04, skipping insertion in model container [2021-11-04 06:55:04,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:54:38" (2/3) ... [2021-11-04 06:55:04,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1155e56f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 06:55:04, skipping insertion in model container [2021-11-04 06:55:04,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 06:55:04" (3/3) ... [2021-11-04 06:55:04,938 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--misc--vmw_vmci--vmw_vmci.ko-entry_point.cil.out.i [2021-11-04 06:55:04,945 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 06:55:04,946 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 67 error locations. [2021-11-04 06:55:05,028 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 06:55:05,035 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-04 06:55:05,035 INFO L340 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2021-11-04 06:55:05,192 INFO L276 IsEmpty]: Start isEmpty. Operand has 10724 states, 10522 states have (on average 1.5072229614141799) internal successors, (15859), 10595 states have internal predecessors, (15859), 104 states have call successors, (104), 30 states have call predecessors, (104), 30 states have return successors, (104), 101 states have call predecessors, (104), 104 states have call successors, (104) [2021-11-04 06:55:05,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-04 06:55:05,201 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:55:05,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 06:55:05,203 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [vmci_guest_remove_deviceErr0ASSERT_VIOLATIONERROR_FUNCTION, vmci_guest_remove_deviceErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 64 more)] === [2021-11-04 06:55:05,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:55:05,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1959735566, now seen corresponding path program 1 times [2021-11-04 06:55:05,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:55:05,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655658986] [2021-11-04 06:55:05,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:55:05,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:55:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:55:06,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 06:55:06,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:55:06,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655658986] [2021-11-04 06:55:06,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655658986] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:55:06,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:55:06,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:55:06,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289801266] [2021-11-04 06:55:06,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:55:06,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:55:06,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:55:06,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:55:06,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:55:06,141 INFO L87 Difference]: Start difference. First operand has 10724 states, 10522 states have (on average 1.5072229614141799) internal successors, (15859), 10595 states have internal predecessors, (15859), 104 states have call successors, (104), 30 states have call predecessors, (104), 30 states have return successors, (104), 101 states have call predecessors, (104), 104 states have call successors, (104) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:55:08,380 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:55:23,520 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 06:55:28,209 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 06:56:02,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:56:19,011 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:56:20,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:56:25,149 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 06:56:30,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:56:57,967 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:57:07,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:57:28,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:57:39,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:58:45,564 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:59:05,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:59:05,696 INFO L93 Difference]: Finished difference Result 31389 states and 47268 transitions. [2021-11-04 06:59:05,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:59:05,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-04 06:59:05,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:59:05,822 INFO L225 Difference]: With dead ends: 31389 [2021-11-04 06:59:05,822 INFO L226 Difference]: Without dead ends: 20659 [2021-11-04 06:59:05,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.89ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:59:05,866 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 15022 mSDsluCounter, 15511 mSDsCounter, 0 mSdLazyCounter, 31254 mSolverCounterSat, 3 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 221947.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15025 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 31268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 246.65ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31254 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 236374.82ms IncrementalHoareTripleChecker+Time [2021-11-04 06:59:05,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15025 Valid, 531 Invalid, 31268 Unknown, 0 Unchecked, 246.65ms Time], IncrementalHoareTripleChecker [3 Valid, 31254 Invalid, 11 Unknown, 0 Unchecked, 236374.82ms Time] [2021-11-04 06:59:05,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20659 states. [2021-11-04 06:59:06,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20659 to 20511. [2021-11-04 06:59:06,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20511 states, 20179 states have (on average 1.4884285643490758) internal successors, (30035), 20257 states have internal predecessors, (30035), 205 states have call successors, (205), 60 states have call predecessors, (205), 60 states have return successors, (208), 199 states have call predecessors, (208), 205 states have call successors, (208) [2021-11-04 06:59:06,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20511 states to 20511 states and 30448 transitions. [2021-11-04 06:59:06,582 INFO L78 Accepts]: Start accepts. Automaton has 20511 states and 30448 transitions. Word has length 24 [2021-11-04 06:59:06,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:59:06,582 INFO L470 AbstractCegarLoop]: Abstraction has 20511 states and 30448 transitions. [2021-11-04 06:59:06,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:59:06,584 INFO L276 IsEmpty]: Start isEmpty. Operand 20511 states and 30448 transitions. [2021-11-04 06:59:06,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-04 06:59:06,587 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:59:06,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 06:59:06,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 06:59:06,588 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [vmci_guest_remove_deviceErr0ASSERT_VIOLATIONERROR_FUNCTION, vmci_guest_remove_deviceErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 64 more)] === [2021-11-04 06:59:06,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:59:06,590 INFO L85 PathProgramCache]: Analyzing trace with hash 801400433, now seen corresponding path program 1 times [2021-11-04 06:59:06,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:59:06,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420834220] [2021-11-04 06:59:06,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:59:06,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:59:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:59:07,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 06:59:07,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:59:07,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420834220] [2021-11-04 06:59:07,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420834220] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:59:07,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:59:07,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:59:07,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935314387] [2021-11-04 06:59:07,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:59:07,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:59:07,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:59:07,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:59:07,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:59:07,087 INFO L87 Difference]: Start difference. First operand 20511 states and 30448 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:59:09,292 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:59:30,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 06:59:36,081 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 06:59:38,177 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 07:00:27,682 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:00:49,709 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:00:51,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:00:56,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 07:01:02,544 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:01:04,641 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:01:35,949 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:01:38,389 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:01:51,831 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:02:01,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:03:04,360 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:03:15,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 07:03:15,623 INFO L93 Difference]: Finished difference Result 41019 states and 60894 transitions. [2021-11-04 07:03:15,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 07:03:15,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-04 07:03:15,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 07:03:15,716 INFO L225 Difference]: With dead ends: 41019 [2021-11-04 07:03:15,716 INFO L226 Difference]: Without dead ends: 20514 [2021-11-04 07:03:15,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.89ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:03:15,773 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 2 mSDsluCounter, 15808 mSDsCounter, 0 mSdLazyCounter, 31209 mSolverCounterSat, 0 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 233965.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 31221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 225.39ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31209 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 246758.23ms IncrementalHoareTripleChecker+Time [2021-11-04 07:03:15,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 416 Invalid, 31221 Unknown, 0 Unchecked, 225.39ms Time], IncrementalHoareTripleChecker [0 Valid, 31209 Invalid, 12 Unknown, 0 Unchecked, 246758.23ms Time] [2021-11-04 07:03:15,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20514 states. [2021-11-04 07:03:16,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20514 to 20512. [2021-11-04 07:03:16,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20512 states, 20180 states have (on average 1.488404360753221) internal successors, (30036), 20258 states have internal predecessors, (30036), 205 states have call successors, (205), 60 states have call predecessors, (205), 60 states have return successors, (208), 199 states have call predecessors, (208), 205 states have call successors, (208) [2021-11-04 07:03:16,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20512 states to 20512 states and 30449 transitions. [2021-11-04 07:03:16,317 INFO L78 Accepts]: Start accepts. Automaton has 20512 states and 30449 transitions. Word has length 25 [2021-11-04 07:03:16,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 07:03:16,318 INFO L470 AbstractCegarLoop]: Abstraction has 20512 states and 30449 transitions. [2021-11-04 07:03:16,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:03:16,318 INFO L276 IsEmpty]: Start isEmpty. Operand 20512 states and 30449 transitions. [2021-11-04 07:03:16,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-04 07:03:16,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 07:03:16,320 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 07:03:16,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 07:03:16,320 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting vmci_qp_guest_endpoints_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [vmci_guest_remove_deviceErr0ASSERT_VIOLATIONERROR_FUNCTION, vmci_guest_remove_deviceErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 64 more)] === [2021-11-04 07:03:16,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 07:03:16,321 INFO L85 PathProgramCache]: Analyzing trace with hash -2094824587, now seen corresponding path program 1 times [2021-11-04 07:03:16,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 07:03:16,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928267078] [2021-11-04 07:03:16,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 07:03:16,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 07:03:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 07:03:16,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 07:03:16,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 07:03:16,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928267078] [2021-11-04 07:03:16,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928267078] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 07:03:16,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 07:03:16,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 07:03:16,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458925506] [2021-11-04 07:03:16,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 07:03:16,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 07:03:16,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 07:03:16,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 07:03:16,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:03:16,824 INFO L87 Difference]: Start difference. First operand 20512 states and 30449 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:03:18,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:04:16,552 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:04:18,033 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:04:22,377 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 07:04:42,935 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 07:04:50,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 07:05:07,495 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:05:19,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:05:36,499 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:06:08,269 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:06:20,629 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:06:29,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:06:31,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:07:02,044 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:07:13,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:07:55,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 07:07:55,260 INFO L93 Difference]: Finished difference Result 60979 states and 90612 transitions. [2021-11-04 07:07:55,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 07:07:55,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-04 07:07:55,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 07:07:55,379 INFO L225 Difference]: With dead ends: 60979 [2021-11-04 07:07:55,379 INFO L226 Difference]: Without dead ends: 40473 [2021-11-04 07:07:55,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.97ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:07:55,432 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 15429 mSDsluCounter, 15804 mSDsCounter, 0 mSdLazyCounter, 31214 mSolverCounterSat, 3 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 255167.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15431 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 31228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 239.63ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31214 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 275735.16ms IncrementalHoareTripleChecker+Time [2021-11-04 07:07:55,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15431 Valid, 519 Invalid, 31228 Unknown, 0 Unchecked, 239.63ms Time], IncrementalHoareTripleChecker [3 Valid, 31214 Invalid, 11 Unknown, 0 Unchecked, 275735.16ms Time] [2021-11-04 07:07:55,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40473 states. [2021-11-04 07:07:56,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40473 to 40305. [2021-11-04 07:07:56,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40305 states, 39710 states have (on average 1.4913623772349534) internal successors, (59222), 39801 states have internal predecessors, (59222), 408 states have call successors, (408), 120 states have call predecessors, (408), 120 states have return successors, (416), 395 states have call predecessors, (416), 408 states have call successors, (416) [2021-11-04 07:07:56,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40305 states to 40305 states and 60046 transitions. [2021-11-04 07:07:56,311 INFO L78 Accepts]: Start accepts. Automaton has 40305 states and 60046 transitions. Word has length 29 [2021-11-04 07:07:56,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 07:07:56,311 INFO L470 AbstractCegarLoop]: Abstraction has 40305 states and 60046 transitions. [2021-11-04 07:07:56,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:07:56,312 INFO L276 IsEmpty]: Start isEmpty. Operand 40305 states and 60046 transitions. [2021-11-04 07:07:56,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-04 07:07:56,317 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 07:07:56,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 07:07:56,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 07:07:56,318 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [vmci_guest_remove_deviceErr0ASSERT_VIOLATIONERROR_FUNCTION, vmci_guest_remove_deviceErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION (and 64 more)] === [2021-11-04 07:07:56,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 07:07:56,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1907895602, now seen corresponding path program 1 times [2021-11-04 07:07:56,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 07:07:56,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955705723] [2021-11-04 07:07:56,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 07:07:56,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 07:07:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 07:07:56,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 07:07:56,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 07:07:56,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955705723] [2021-11-04 07:07:56,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955705723] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-04 07:07:56,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188070699] [2021-11-04 07:07:56,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 07:07:56,833 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 07:07:56,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 07:07:56,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-04 07:07:56,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-04 07:07:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 07:07:59,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 5272 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-04 07:07:59,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 07:08:00,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 07:08:00,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 07:08:00,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188070699] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 07:08:00,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-04 07:08:00,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-04 07:08:00,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962300316] [2021-11-04 07:08:00,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 07:08:00,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 07:08:00,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 07:08:00,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 07:08:00,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-04 07:08:00,028 INFO L87 Difference]: Start difference. First operand 40305 states and 60046 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:08:02,135 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15