./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 839c364b 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:07:16,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:07:16,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:07:16,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:07:16,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:07:16,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:07:16,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:07:16,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:07:16,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:07:16,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:07:16,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:07:16,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:07:16,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:07:16,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:07:16,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:07:16,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:07:16,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:07:16,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:07:16,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:07:16,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:07:16,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:07:16,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:07:16,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:07:16,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:07:16,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:07:16,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:07:16,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:07:16,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:07:16,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:07:16,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:07:16,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:07:16,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:07:16,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:07:16,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:07:16,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:07:16,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:07:16,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:07:16,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:07:16,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:07:16,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:07:16,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:07:16,899 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:07:16,918 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:07:16,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:07:16,927 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:07:16,928 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:07:16,928 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:07:16,929 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:07:16,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:07:16,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:07:16,929 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:07:16,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:07:16,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:07:16,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:07:16,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:07:16,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:07:16,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:07:16,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:07:16,931 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:07:16,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:07:16,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:07:16,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:07:16,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:07:16,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:07:16,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:07:16,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:07:16,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:07:16,933 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:07:16,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:07:16,933 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:07:16,933 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:07:16,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:07:16,934 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:07:16,934 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d123e3c2a314a098b4e7a140b822a7b44f2ae282ca90c74ec5605a44f397143 [2021-12-14 18:07:17,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:07:17,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:07:17,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:07:17,130 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:07:17,130 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:07:17,131 INFO L432 ainManager$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 [2021-12-14 18:07:17,183 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd25daca3/6090704f130445c481c6b99fe9b426b3/FLAG7436cfa4b [2021-12-14 18:07:17,835 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:07:17,836 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 [2021-12-14 18:07:17,889 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd25daca3/6090704f130445c481c6b99fe9b426b3/FLAG7436cfa4b [2021-12-14 18:07:17,931 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd25daca3/6090704f130445c481c6b99fe9b426b3 [2021-12-14 18:07:17,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:07:17,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:07:17,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:07:17,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:07:17,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:07:17,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:07:17" (1/1) ... [2021-12-14 18:07:17,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a37bc7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:17, skipping insertion in model container [2021-12-14 18:07:17,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:07:17" (1/1) ... [2021-12-14 18:07:17,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:07:18,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:07:22,102 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-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] [2021-12-14 18:07:22,494 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:07:22,594 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:07:22,926 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-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] [2021-12-14 18:07:22,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:07:23,192 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:07:23,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:23 WrapperNode [2021-12-14 18:07:23,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:07:23,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:07:23,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:07:23,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:07:23,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:23" (1/1) ... [2021-12-14 18:07:23,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:23" (1/1) ... [2021-12-14 18:07:23,599 INFO L137 Inliner]: procedures = 713, calls = 6159, calls flagged for inlining = 240, calls inlined = 191, statements flattened = 9050 [2021-12-14 18:07:23,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:07:23,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:07:23,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:07:23,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:07:23,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:23" (1/1) ... [2021-12-14 18:07:23,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:23" (1/1) ... [2021-12-14 18:07:23,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:23" (1/1) ... [2021-12-14 18:07:23,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:23" (1/1) ... [2021-12-14 18:07:23,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:23" (1/1) ... [2021-12-14 18:07:23,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:23" (1/1) ... [2021-12-14 18:07:23,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:23" (1/1) ... [2021-12-14 18:07:24,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:07:24,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:07:24,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:07:24,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:07:24,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:23" (1/1) ... [2021-12-14 18:07:24,075 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:07:24,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:07:24,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 18:07:24,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 18:07:24,161 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-14 18:07:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-14 18:07:24,164 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_msix_exact [2021-12-14 18:07:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_msix_exact [2021-12-14 18:07:24,164 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_signal_notify [2021-12-14 18:07:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_signal_notify [2021-12-14 18:07:24,165 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_send [2021-12-14 18:07:24,165 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_send [2021-12-14 18:07:24,165 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_exists [2021-12-14 18:07:24,165 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_exists [2021-12-14 18:07:24,169 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_code_active [2021-12-14 18:07:24,169 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_code_active [2021-12-14 18:07:24,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_subscriber_mutex [2021-12-14 18:07:24,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_subscriber_mutex [2021-12-14 18:07:24,170 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_put [2021-12-14 18:07:24,170 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_put [2021-12-14 18:07:24,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:07:24,170 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:07:24,170 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_open [2021-12-14 18:07:24,170 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_open [2021-12-14 18:07:24,170 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_unregister_user_memory [2021-12-14 18:07:24,170 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_unregister_user_memory [2021-12-14 18:07:24,170 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_add_notification [2021-12-14 18:07:24,170 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_add_notification [2021-12-14 18:07:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_unlocked_ioctl [2021-12-14 18:07:24,205 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_unlocked_ioctl [2021-12-14 18:07:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-14 18:07:24,205 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-14 18:07:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:07:24,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:07:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_get_id [2021-12-14 18:07:24,205 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_get_id [2021-12-14 18:07:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-14 18:07:24,205 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-14 18:07:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_has_entry [2021-12-14 18:07:24,206 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_has_entry [2021-12-14 18:07:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_destroy [2021-12-14 18:07:24,206 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_destroy [2021-12-14 18:07:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_send_datagram [2021-12-14 18:07:24,206 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_send_datagram [2021-12-14 18:07:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-14 18:07:24,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-14 18:07:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_get [2021-12-14 18:07:24,206 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_get [2021-12-14 18:07:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_get_entry [2021-12-14 18:07:24,206 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_get_entry [2021-12-14 18:07:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2021-12-14 18:07:24,206 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2021-12-14 18:07:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure qp_acquire_queue_mutex [2021-12-14 18:07:24,206 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_acquire_queue_mutex [2021-12-14 18:07:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_get_context_id [2021-12-14 18:07:24,207 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_get_context_id [2021-12-14 18:07:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_map_queues [2021-12-14 18:07:24,207 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_map_queues [2021-12-14 18:07:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_add [2021-12-14 18:07:24,207 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_add [2021-12-14 18:07:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-14 18:07:24,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-14 18:07:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 18:07:24,207 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 18:07:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock___1 [2021-12-14 18:07:24,207 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock___1 [2021-12-14 18:07:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure no_printk [2021-12-14 18:07:24,207 INFO L138 BoogieDeclarations]: Found implementation of procedure no_printk [2021-12-14 18:07:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_get_head [2021-12-14 18:07:24,207 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_get_head [2021-12-14 18:07:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure dbell_delayed_dispatch [2021-12-14 18:07:24,208 INFO L138 BoogieDeclarations]: Found implementation of procedure dbell_delayed_dispatch [2021-12-14 18:07:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2021-12-14 18:07:24,208 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2021-12-14 18:07:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_vmci_host_dev [2021-12-14 18:07:24,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_vmci_host_dev [2021-12-14 18:07:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-14 18:07:24,208 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-14 18:07:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-14 18:07:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:07:24,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:07:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_qp_list [2021-12-14 18:07:24,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_qp_list [2021-12-14 18:07:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure dg_delayed_dispatch [2021-12-14 18:07:24,208 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_delayed_dispatch [2021-12-14 18:07:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:07:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2021-12-14 18:07:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2021-12-14 18:07:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-14 18:07:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-14 18:07:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-14 18:07:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-14 18:07:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 18:07:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 18:07:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_host [2021-12-14 18:07:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_host [2021-12-14 18:07:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 18:07:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 18:07:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:07:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure qp_reset_saved_headers [2021-12-14 18:07:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_reset_saved_headers [2021-12-14 18:07:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_handle [2021-12-14 18:07:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_handle [2021-12-14 18:07:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_add_entry [2021-12-14 18:07:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_add_entry [2021-12-14 18:07:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid [2021-12-14 18:07:24,210 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid [2021-12-14 18:07:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_dispatch [2021-12-14 18:07:24,210 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_dispatch [2021-12-14 18:07:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:07:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-12-14 18:07:24,210 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-12-14 18:07:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_vmci_queue_kern_if [2021-12-14 18:07:24,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_vmci_queue_kern_if [2021-12-14 18:07:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:07:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2021-12-14 18:07:24,210 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2021-12-14 18:07:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_find [2021-12-14 18:07:24,210 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_find [2021-12-14 18:07:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:07:24,210 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:07:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2021-12-14 18:07:24,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2021-12-14 18:07:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2021-12-14 18:07:24,211 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2021-12-14 18:07:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_clear_notify_call [2021-12-14 18:07:24,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_clear_notify_call [2021-12-14 18:07:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-14 18:07:24,211 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-14 18:07:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure qp_notify_peer [2021-12-14 18:07:24,211 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_notify_peer [2021-12-14 18:07:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-14 18:07:24,211 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-14 18:07:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-14 18:07:24,211 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-14 18:07:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_unset_notify [2021-12-14 18:07:24,211 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_unset_notify [2021-12-14 18:07:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure __hlist_del [2021-12-14 18:07:24,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __hlist_del [2021-12-14 18:07:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_exit [2021-12-14 18:07:24,212 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_exit [2021-12-14 18:07:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_destroy [2021-12-14 18:07:24,212 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_destroy [2021-12-14 18:07:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2021-12-14 18:07:24,212 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2021-12-14 18:07:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-14 18:07:24,212 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-14 18:07:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-12-14 18:07:24,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-12-14 18:07:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure qp_lock [2021-12-14 18:07:24,212 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_lock [2021-12-14 18:07:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2021-12-14 18:07:24,212 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2021-12-14 18:07:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_by_handle [2021-12-14 18:07:24,213 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_by_handle [2021-12-14 18:07:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-14 18:07:24,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-14 18:07:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure qp_notify_peer_local [2021-12-14 18:07:24,213 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_notify_peer_local [2021-12-14 18:07:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure vunmap [2021-12-14 18:07:24,213 INFO L138 BoogieDeclarations]: Found implementation of procedure vunmap [2021-12-14 18:07:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_get_user_memory [2021-12-14 18:07:24,214 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_get_user_memory [2021-12-14 18:07:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_fire_notification [2021-12-14 18:07:24,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_fire_notification [2021-12-14 18:07:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:07:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure qp_unlock [2021-12-14 18:07:24,215 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_unlock [2021-12-14 18:07:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_close [2021-12-14 18:07:24,215 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_close [2021-12-14 18:07:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:07:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_probe_device [2021-12-14 18:07:24,215 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_probe_device [2021-12-14 18:07:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid___1 [2021-12-14 18:07:24,215 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid___1 [2021-12-14 18:07:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid___0 [2021-12-14 18:07:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid___0 [2021-12-14 18:07:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_alloc_queue [2021-12-14 18:07:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_alloc_queue [2021-12-14 18:07:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:07:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 18:07:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_free_ctx [2021-12-14 18:07:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_free_ctx [2021-12-14 18:07:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:07:24,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:07:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_poll [2021-12-14 18:07:24,217 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_poll [2021-12-14 18:07:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-14 18:07:24,217 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-14 18:07:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:07:24,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:07:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure qp_release_pages [2021-12-14 18:07:24,218 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_release_pages [2021-12-14 18:07:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure qp_cleanup_queue_mutex [2021-12-14 18:07:24,218 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_cleanup_queue_mutex [2021-12-14 18:07:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_get_size [2021-12-14 18:07:24,218 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_get_size [2021-12-14 18:07:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_hypercall [2021-12-14 18:07:24,218 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_hypercall [2021-12-14 18:07:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-14 18:07:24,219 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-14 18:07:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-14 18:07:24,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-14 18:07:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_remove_entry [2021-12-14 18:07:24,219 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_remove_entry [2021-12-14 18:07:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 18:07:24,219 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 18:07:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_q_header_init [2021-12-14 18:07:24,219 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_q_header_init [2021-12-14 18:07:24,220 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add_rcu [2021-12-14 18:07:24,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add_rcu [2021-12-14 18:07:24,220 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_register_user_memory [2021-12-14 18:07:24,220 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_register_user_memory [2021-12-14 18:07:24,220 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-14 18:07:24,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-14 18:07:24,220 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_guest_work [2021-12-14 18:07:24,220 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_guest_work [2021-12-14 18:07:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure drv_cp_harray_to_user [2021-12-14 18:07:24,221 INFO L138 BoogieDeclarations]: Found implementation of procedure drv_cp_harray_to_user [2021-12-14 18:07:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:07:24,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:07:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 18:07:24,221 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 18:07:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_remove_tail [2021-12-14 18:07:24,221 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_remove_tail [2021-12-14 18:07:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_subscriber_mutex [2021-12-14 18:07:24,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_subscriber_mutex [2021-12-14 18:07:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-14 18:07:24,222 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-14 18:07:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_supports_host_qp [2021-12-14 18:07:24,222 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_supports_host_qp [2021-12-14 18:07:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:07:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:07:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:07:24,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:07:24,223 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_broker_detach [2021-12-14 18:07:24,223 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_broker_detach [2021-12-14 18:07:24,223 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_enqueue_datagram [2021-12-14 18:07:24,223 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_enqueue_datagram [2021-12-14 18:07:24,223 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-14 18:07:24,223 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-14 18:07:24,223 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_unmap_queues [2021-12-14 18:07:24,224 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_unmap_queues [2021-12-14 18:07:24,224 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_rcu [2021-12-14 18:07:24,224 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_rcu [2021-12-14 18:07:24,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_qp_list [2021-12-14 18:07:24,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_qp_list [2021-12-14 18:07:24,224 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 18:07:24,224 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 18:07:24,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 18:07:24,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 18:07:24,225 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-14 18:07:24,225 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-14 18:07:24,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 18:07:24,252 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 18:07:24,252 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2021-12-14 18:07:24,252 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2021-12-14 18:07:24,252 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 18:07:24,253 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 18:07:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2021-12-14 18:07:24,253 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2021-12-14 18:07:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_vmci_queue_kern_if [2021-12-14 18:07:24,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_vmci_queue_kern_if [2021-12-14 18:07:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_notify_dbell [2021-12-14 18:07:24,253 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_notify_dbell [2021-12-14 18:07:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_append_entry [2021-12-14 18:07:24,253 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_append_entry [2021-12-14 18:07:24,253 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-12-14 18:07:24,254 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-12-14 18:07:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-14 18:07:24,254 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-14 18:07:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure qp_broker_handle_to_entry [2021-12-14 18:07:24,254 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_broker_handle_to_entry [2021-12-14 18:07:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qpair_detach [2021-12-14 18:07:24,254 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qpair_detach [2021-12-14 18:07:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-14 18:07:24,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-14 18:07:24,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:07:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 18:07:24,255 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 18:07:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_hash [2021-12-14 18:07:24,255 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_hash [2021-12-14 18:07:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_create [2021-12-14 18:07:24,255 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_create [2021-12-14 18:07:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure event_find [2021-12-14 18:07:24,255 INFO L138 BoogieDeclarations]: Found implementation of procedure event_find [2021-12-14 18:07:24,255 INFO L130 BoogieDeclarations]: Found specification of procedure qp_broker_alloc [2021-12-14 18:07:24,256 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_broker_alloc [2021-12-14 18:07:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:07:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_host_work [2021-12-14 18:07:24,256 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_host_work [2021-12-14 18:07:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-12-14 18:07:24,256 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-12-14 18:07:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure hash_32 [2021-12-14 18:07:24,256 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_32 [2021-12-14 18:07:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail_rcu [2021-12-14 18:07:24,256 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail_rcu [2021-12-14 18:07:24,256 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock___1 [2021-12-14 18:07:24,257 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock___1 [2021-12-14 18:07:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure qp_guest_endpoint_destroy [2021-12-14 18:07:24,257 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_guest_endpoint_destroy [2021-12-14 18:07:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:07:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_guest [2021-12-14 18:07:24,257 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_guest [2021-12-14 18:07:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-14 18:07:24,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-14 18:07:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 18:07:24,257 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 18:07:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-14 18:07:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-14 18:07:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_dispatch [2021-12-14 18:07:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_dispatch [2021-12-14 18:07:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure qp_release_queue_mutex [2021-12-14 18:07:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_release_queue_mutex [2021-12-14 18:07:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-14 18:07:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-14 18:07:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_route [2021-12-14 18:07:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_route [2021-12-14 18:07:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure get_user_pages_fast [2021-12-14 18:07:24,259 INFO L138 BoogieDeclarations]: Found implementation of procedure get_user_pages_fast [2021-12-14 18:07:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure qp_free_queue [2021-12-14 18:07:24,259 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_free_queue [2021-12-14 18:07:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_free_queue [2021-12-14 18:07:24,259 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_free_queue [2021-12-14 18:07:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-14 18:07:24,259 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-14 18:07:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_set [2021-12-14 18:07:24,260 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_set [2021-12-14 18:07:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_get_priv_flags [2021-12-14 18:07:24,260 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_get_priv_flags [2021-12-14 18:07:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_exists [2021-12-14 18:07:24,260 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_exists [2021-12-14 18:07:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2021-12-14 18:07:24,260 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2021-12-14 18:07:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_remove [2021-12-14 18:07:24,260 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_remove [2021-12-14 18:07:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 18:07:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 18:07:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure qp_init_queue_mutex [2021-12-14 18:07:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_init_queue_mutex [2021-12-14 18:07:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:07:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_context_get_priv_flags [2021-12-14 18:07:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_context_get_priv_flags [2021-12-14 18:07:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2021-12-14 18:07:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2021-12-14 18:07:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-14 18:07:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-14 18:07:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:07:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:07:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2021-12-14 18:07:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2021-12-14 18:07:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work___0 [2021-12-14 18:07:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work___0 [2021-12-14 18:07:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-12-14 18:07:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-12-14 18:07:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-14 18:07:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-14 18:07:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_guest_endpoints_exit [2021-12-14 18:07:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_guest_endpoints_exit [2021-12-14 18:07:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_HLIST_NODE [2021-12-14 18:07:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_HLIST_NODE [2021-12-14 18:07:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-14 18:07:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-14 18:07:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-14 18:07:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-14 18:07:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_equal [2021-12-14 18:07:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_equal [2021-12-14 18:07:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_destroy [2021-12-14 18:07:24,264 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_destroy [2021-12-14 18:07:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure qp_guest_handle_to_entry [2021-12-14 18:07:24,264 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_guest_handle_to_entry [2021-12-14 18:07:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-14 18:07:24,264 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-14 18:07:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch [2021-12-14 18:07:24,264 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch [2021-12-14 18:07:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure handle_arr_calc_size [2021-12-14 18:07:24,265 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_arr_calc_size [2021-12-14 18:07:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2021-12-14 18:07:24,265 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2021-12-14 18:07:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_unhashed [2021-12-14 18:07:24,265 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_unhashed [2021-12-14 18:07:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_broker_alloc [2021-12-14 18:07:24,265 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_broker_alloc [2021-12-14 18:07:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-14 18:07:24,266 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-14 18:07:24,266 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2021-12-14 18:07:24,266 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2021-12-14 18:07:24,266 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-14 18:07:24,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-14 18:07:24,266 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-14 18:07:24,266 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-14 18:07:24,266 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2021-12-14 18:07:24,266 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2021-12-14 18:07:24,266 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_get [2021-12-14 18:07:24,267 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_get [2021-12-14 18:07:24,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_vmci_host_dev [2021-12-14 18:07:24,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_vmci_host_dev [2021-12-14 18:07:24,267 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-14 18:07:24,267 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-14 18:07:24,267 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-12-14 18:07:24,267 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-12-14 18:07:24,267 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_remove_entry [2021-12-14 18:07:24,267 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_remove_entry [2021-12-14 18:07:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_unsubscribe [2021-12-14 18:07:24,268 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_unsubscribe [2021-12-14 18:07:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_deny_interaction [2021-12-14 18:07:24,268 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_deny_interaction [2021-12-14 18:07:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_remove_device [2021-12-14 18:07:24,268 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_remove_device [2021-12-14 18:07:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_create [2021-12-14 18:07:24,268 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_create [2021-12-14 18:07:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_code_active [2021-12-14 18:07:24,268 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_code_active [2021-12-14 18:07:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 18:07:24,269 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 18:07:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 18:07:24,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 18:07:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-14 18:07:24,269 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-14 18:07:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-14 18:07:24,269 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-14 18:07:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_lookup [2021-12-14 18:07:24,269 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_lookup [2021-12-14 18:07:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-12-14 18:07:24,270 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-12-14 18:07:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:07:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_create [2021-12-14 18:07:24,270 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_create [2021-12-14 18:07:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_put [2021-12-14 18:07:24,270 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_put [2021-12-14 18:07:25,146 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:07:25,150 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:07:25,499 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:07:35,524 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:07:35,550 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:07:35,551 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 18:07:35,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:07:35 BoogieIcfgContainer [2021-12-14 18:07:35,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:07:35,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:07:35,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:07:35,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:07:35,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:07:17" (1/3) ... [2021-12-14 18:07:35,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162530ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:07:35, skipping insertion in model container [2021-12-14 18:07:35,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:23" (2/3) ... [2021-12-14 18:07:35,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162530ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:07:35, skipping insertion in model container [2021-12-14 18:07:35,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:07:35" (3/3) ... [2021-12-14 18:07:35,563 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 [2021-12-14 18:07:35,568 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:07:35,568 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 18:07:35,624 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:07:35,639 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 18:07:35,639 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 18:07:35,705 INFO L276 IsEmpty]: Start isEmpty. Operand has 3381 states, 2333 states have (on average 1.3686240891555936) internal successors, (3193), 2400 states have internal predecessors, (3193), 843 states have call successors, (843), 204 states have call predecessors, (843), 203 states have return successors, (839), 833 states have call predecessors, (839), 839 states have call successors, (839) [2021-12-14 18:07:35,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-14 18:07:35,711 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:07:35,711 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] [2021-12-14 18:07:35,712 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:07:35,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:07:35,716 INFO L85 PathProgramCache]: Analyzing trace with hash -221624845, now seen corresponding path program 1 times [2021-12-14 18:07:35,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:07:35,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053585363] [2021-12-14 18:07:35,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:35,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:07:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 18:07:36,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:07:36,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053585363] [2021-12-14 18:07:36,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053585363] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:07:36,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:07:36,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 18:07:36,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3336223] [2021-12-14 18:07:36,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:07:36,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:07:36,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:07:36,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:07:36,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 18:07:36,414 INFO L87 Difference]: Start difference. First operand has 3381 states, 2333 states have (on average 1.3686240891555936) internal successors, (3193), 2400 states have internal predecessors, (3193), 843 states have call successors, (843), 204 states have call predecessors, (843), 203 states have return successors, (839), 833 states have call predecessors, (839), 839 states have call successors, (839) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 18:07:36,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:07:36,710 INFO L93 Difference]: Finished difference Result 6757 states and 9929 transitions. [2021-12-14 18:07:36,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:07:36,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-12-14 18:07:36,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:07:36,751 INFO L225 Difference]: With dead ends: 6757 [2021-12-14 18:07:36,751 INFO L226 Difference]: Without dead ends: 3373 [2021-12-14 18:07:36,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 18:07:36,784 INFO L933 BasicCegarLoop]: 4856 mSDtfsCounter, 1 mSDsluCounter, 4853 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9709 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:07:36,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 9709 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:07:36,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2021-12-14 18:07:36,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 3371. [2021-12-14 18:07:36,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3371 states, 2329 states have (on average 1.3662516101331044) internal successors, (3182), 2390 states have internal predecessors, (3182), 839 states have call successors, (839), 203 states have call predecessors, (839), 202 states have return successors, (824), 818 states have call predecessors, (824), 824 states have call successors, (824) [2021-12-14 18:07:37,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3371 states to 3371 states and 4845 transitions. [2021-12-14 18:07:37,008 INFO L78 Accepts]: Start accepts. Automaton has 3371 states and 4845 transitions. Word has length 27 [2021-12-14 18:07:37,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:07:37,008 INFO L470 AbstractCegarLoop]: Abstraction has 3371 states and 4845 transitions. [2021-12-14 18:07:37,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 18:07:37,010 INFO L276 IsEmpty]: Start isEmpty. Operand 3371 states and 4845 transitions. [2021-12-14 18:07:37,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-14 18:07:37,015 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:07:37,016 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] [2021-12-14 18:07:37,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:07:37,016 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:07:37,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:07:37,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1647899974, now seen corresponding path program 1 times [2021-12-14 18:07:37,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:07:37,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272260983] [2021-12-14 18:07:37,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:37,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:07:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:37,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:07:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:37,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 18:07:37,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:07:37,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272260983] [2021-12-14 18:07:37,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272260983] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:07:37,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:07:37,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:07:37,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97652242] [2021-12-14 18:07:37,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:07:37,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:07:37,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:07:37,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:07:37,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:07:37,365 INFO L87 Difference]: Start difference. First operand 3371 states and 4845 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 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) [2021-12-14 18:07:42,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:07:47,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:07:47,108 INFO L93 Difference]: Finished difference Result 10256 states and 14831 transitions. [2021-12-14 18:07:47,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:07:47,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 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 29 [2021-12-14 18:07:47,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:07:47,143 INFO L225 Difference]: With dead ends: 10256 [2021-12-14 18:07:47,143 INFO L226 Difference]: Without dead ends: 6891 [2021-12-14 18:07:47,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:07:47,166 INFO L933 BasicCegarLoop]: 7950 mSDtfsCounter, 5335 mSDsluCounter, 7669 mSDsCounter, 0 mSdLazyCounter, 2848 mSolverCounterSat, 1673 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5923 SdHoareTripleChecker+Valid, 15619 SdHoareTripleChecker+Invalid, 4522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1673 IncrementalHoareTripleChecker+Valid, 2848 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-12-14 18:07:47,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5923 Valid, 15619 Invalid, 4522 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1673 Valid, 2848 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2021-12-14 18:07:47,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6891 states. [2021-12-14 18:07:47,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6891 to 6637. [2021-12-14 18:07:47,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6637 states, 4589 states have (on average 1.3660928306820659) internal successors, (6269), 4696 states have internal predecessors, (6269), 1643 states have call successors, (1643), 405 states have call predecessors, (1643), 404 states have return successors, (1628), 1616 states have call predecessors, (1628), 1628 states have call successors, (1628) [2021-12-14 18:07:47,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6637 states to 6637 states and 9540 transitions. [2021-12-14 18:07:47,444 INFO L78 Accepts]: Start accepts. Automaton has 6637 states and 9540 transitions. Word has length 29 [2021-12-14 18:07:47,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:07:47,445 INFO L470 AbstractCegarLoop]: Abstraction has 6637 states and 9540 transitions. [2021-12-14 18:07:47,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 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) [2021-12-14 18:07:47,445 INFO L276 IsEmpty]: Start isEmpty. Operand 6637 states and 9540 transitions. [2021-12-14 18:07:47,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-14 18:07:47,447 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:07:47,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:07:47,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:07:47,447 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:07:47,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:07:47,448 INFO L85 PathProgramCache]: Analyzing trace with hash -8374377, now seen corresponding path program 1 times [2021-12-14 18:07:47,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:07:47,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323262487] [2021-12-14 18:07:47,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:47,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:07:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:47,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:07:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:47,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 18:07:47,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:07:47,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323262487] [2021-12-14 18:07:47,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323262487] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 18:07:47,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784731778] [2021-12-14 18:07:47,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:47,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:07:47,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:07:47,748 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) [2021-12-14 18:07:47,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 18:07:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:48,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 4888 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 18:07:48,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:07:49,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 18:07:49,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:07:49,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784731778] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:07:49,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 18:07:49,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-14 18:07:49,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106694244] [2021-12-14 18:07:49,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:07:49,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:07:49,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:07:49,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:07:49,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:07:49,127 INFO L87 Difference]: Start difference. First operand 6637 states and 9540 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2021-12-14 18:07:49,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:07:49,243 INFO L93 Difference]: Finished difference Result 6639 states and 9541 transitions. [2021-12-14 18:07:49,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:07:49,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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 33 [2021-12-14 18:07:49,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:07:49,291 INFO L225 Difference]: With dead ends: 6639 [2021-12-14 18:07:49,291 INFO L226 Difference]: Without dead ends: 6636 [2021-12-14 18:07:49,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:07:49,302 INFO L933 BasicCegarLoop]: 4841 mSDtfsCounter, 4812 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4812 SdHoareTripleChecker+Valid, 4841 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:07:49,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4812 Valid, 4841 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:07:49,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6636 states. [2021-12-14 18:07:49,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6636 to 6636. [2021-12-14 18:07:49,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6636 states, 4589 states have (on average 1.3658749182828502) internal successors, (6268), 4695 states have internal predecessors, (6268), 1642 states have call successors, (1642), 405 states have call predecessors, (1642), 404 states have return successors, (1628), 1616 states have call predecessors, (1628), 1628 states have call successors, (1628) [2021-12-14 18:07:49,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6636 states to 6636 states and 9538 transitions. [2021-12-14 18:07:49,540 INFO L78 Accepts]: Start accepts. Automaton has 6636 states and 9538 transitions. Word has length 33 [2021-12-14 18:07:49,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:07:49,540 INFO L470 AbstractCegarLoop]: Abstraction has 6636 states and 9538 transitions. [2021-12-14 18:07:49,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2021-12-14 18:07:49,541 INFO L276 IsEmpty]: Start isEmpty. Operand 6636 states and 9538 transitions. [2021-12-14 18:07:49,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-14 18:07:49,543 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:07:49,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:07:49,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 18:07:49,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:07:49,768 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:07:49,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:07:49,768 INFO L85 PathProgramCache]: Analyzing trace with hash -260968426, now seen corresponding path program 1 times [2021-12-14 18:07:49,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:07:49,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311710226] [2021-12-14 18:07:49,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:49,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:07:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:49,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:07:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:49,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 18:07:49,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:07:49,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311710226] [2021-12-14 18:07:49,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311710226] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 18:07:49,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669424754] [2021-12-14 18:07:49,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:49,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:07:49,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:07:49,982 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 18:07:50,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 18:07:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:51,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 4890 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 18:07:51,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:07:51,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 18:07:51,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:07:51,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669424754] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:07:51,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 18:07:51,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-14 18:07:51,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504014737] [2021-12-14 18:07:51,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:07:51,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:07:51,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:07:51,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:07:51,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:07:51,375 INFO L87 Difference]: Start difference. First operand 6636 states and 9538 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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) [2021-12-14 18:07:51,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:07:51,510 INFO L93 Difference]: Finished difference Result 6638 states and 9539 transitions. [2021-12-14 18:07:51,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:07:51,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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 34 [2021-12-14 18:07:51,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:07:51,545 INFO L225 Difference]: With dead ends: 6638 [2021-12-14 18:07:51,545 INFO L226 Difference]: Without dead ends: 6635 [2021-12-14 18:07:51,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:07:51,551 INFO L933 BasicCegarLoop]: 4839 mSDtfsCounter, 4809 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 4839 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:07:51,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4809 Valid, 4839 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:07:51,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6635 states. [2021-12-14 18:07:51,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6635 to 6635. [2021-12-14 18:07:51,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6635 states, 4589 states have (on average 1.3656570058836348) internal successors, (6267), 4694 states have internal predecessors, (6267), 1641 states have call successors, (1641), 405 states have call predecessors, (1641), 404 states have return successors, (1628), 1616 states have call predecessors, (1628), 1628 states have call successors, (1628) [2021-12-14 18:07:51,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6635 states to 6635 states and 9536 transitions. [2021-12-14 18:07:51,802 INFO L78 Accepts]: Start accepts. Automaton has 6635 states and 9536 transitions. Word has length 34 [2021-12-14 18:07:51,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:07:51,803 INFO L470 AbstractCegarLoop]: Abstraction has 6635 states and 9536 transitions. [2021-12-14 18:07:51,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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) [2021-12-14 18:07:51,803 INFO L276 IsEmpty]: Start isEmpty. Operand 6635 states and 9536 transitions. [2021-12-14 18:07:51,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-14 18:07:51,806 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:07:51,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:07:51,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 18:07:52,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-14 18:07:52,020 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:07:52,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:07:52,020 INFO L85 PathProgramCache]: Analyzing trace with hash 498555514, now seen corresponding path program 1 times [2021-12-14 18:07:52,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:07:52,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052487954] [2021-12-14 18:07:52,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:52,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:07:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:52,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:07:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:52,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 18:07:52,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:07:52,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052487954] [2021-12-14 18:07:52,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052487954] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 18:07:52,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131148028] [2021-12-14 18:07:52,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:52,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:07:52,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:07:52,282 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 18:07:52,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 18:07:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:53,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 4892 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 18:07:53,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:07:53,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 18:07:53,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:07:53,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131148028] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:07:53,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 18:07:53,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-14 18:07:53,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938472730] [2021-12-14 18:07:53,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:07:53,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:07:53,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:07:53,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:07:53,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:07:53,500 INFO L87 Difference]: Start difference. First operand 6635 states and 9536 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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) [2021-12-14 18:07:53,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:07:53,658 INFO L93 Difference]: Finished difference Result 10444 states and 14724 transitions. [2021-12-14 18:07:53,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:07:53,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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 35 [2021-12-14 18:07:53,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:07:53,718 INFO L225 Difference]: With dead ends: 10444 [2021-12-14 18:07:53,718 INFO L226 Difference]: Without dead ends: 10440 [2021-12-14 18:07:53,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:07:53,728 INFO L933 BasicCegarLoop]: 5316 mSDtfsCounter, 4728 mSDsluCounter, 2719 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4728 SdHoareTripleChecker+Valid, 8035 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:07:53,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4728 Valid, 8035 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:07:53,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10440 states. [2021-12-14 18:07:53,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10440 to 10432. [2021-12-14 18:07:54,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10432 states, 7162 states have (on average 1.349064507120916) internal successors, (9662), 7337 states have internal predecessors, (9662), 2530 states have call successors, (2530), 740 states have call predecessors, (2530), 739 states have return successors, (2519), 2495 states have call predecessors, (2519), 2519 states have call successors, (2519) [2021-12-14 18:07:54,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10432 states to 10432 states and 14711 transitions. [2021-12-14 18:07:54,060 INFO L78 Accepts]: Start accepts. Automaton has 10432 states and 14711 transitions. Word has length 35 [2021-12-14 18:07:54,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:07:54,061 INFO L470 AbstractCegarLoop]: Abstraction has 10432 states and 14711 transitions. [2021-12-14 18:07:54,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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) [2021-12-14 18:07:54,062 INFO L276 IsEmpty]: Start isEmpty. Operand 10432 states and 14711 transitions. [2021-12-14 18:07:54,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-14 18:07:54,063 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:07:54,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:07:54,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-14 18:07:54,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:07:54,283 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:07:54,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:07:54,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1726001255, now seen corresponding path program 1 times [2021-12-14 18:07:54,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:07:54,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312837422] [2021-12-14 18:07:54,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:54,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:07:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:54,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:07:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:54,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 18:07:54,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:07:54,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312837422] [2021-12-14 18:07:54,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312837422] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 18:07:54,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230152335] [2021-12-14 18:07:54,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:54,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:07:54,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:07:54,484 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 18:07:54,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-14 18:07:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:55,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 4894 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 18:07:55,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:07:55,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 18:07:55,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:07:55,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230152335] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:07:55,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 18:07:55,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-14 18:07:55,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623219305] [2021-12-14 18:07:55,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:07:55,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:07:55,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:07:55,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:07:55,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:07:55,694 INFO L87 Difference]: Start difference. First operand 10432 states and 14711 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2021-12-14 18:07:55,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:07:55,867 INFO L93 Difference]: Finished difference Result 10434 states and 14712 transitions. [2021-12-14 18:07:55,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:07:55,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 36 [2021-12-14 18:07:55,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:07:55,912 INFO L225 Difference]: With dead ends: 10434 [2021-12-14 18:07:55,912 INFO L226 Difference]: Without dead ends: 10431 [2021-12-14 18:07:55,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:07:55,921 INFO L933 BasicCegarLoop]: 4833 mSDtfsCounter, 4801 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4801 SdHoareTripleChecker+Valid, 4833 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:07:55,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4801 Valid, 4833 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:07:55,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10431 states. [2021-12-14 18:07:56,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10431 to 10431. [2021-12-14 18:07:56,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10431 states, 7162 states have (on average 1.3489248813180676) internal successors, (9661), 7336 states have internal predecessors, (9661), 2529 states have call successors, (2529), 740 states have call predecessors, (2529), 739 states have return successors, (2519), 2495 states have call predecessors, (2519), 2519 states have call successors, (2519) [2021-12-14 18:07:56,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10431 states to 10431 states and 14709 transitions. [2021-12-14 18:07:56,228 INFO L78 Accepts]: Start accepts. Automaton has 10431 states and 14709 transitions. Word has length 36 [2021-12-14 18:07:56,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:07:56,229 INFO L470 AbstractCegarLoop]: Abstraction has 10431 states and 14709 transitions. [2021-12-14 18:07:56,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2021-12-14 18:07:56,229 INFO L276 IsEmpty]: Start isEmpty. Operand 10431 states and 14709 transitions. [2021-12-14 18:07:56,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-14 18:07:56,230 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:07:56,230 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:07:56,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-14 18:07:56,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:07:56,442 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:07:56,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:07:56,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1967779491, now seen corresponding path program 1 times [2021-12-14 18:07:56,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:07:56,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705806139] [2021-12-14 18:07:56,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:56,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:07:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:56,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:07:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:56,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 18:07:56,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:07:56,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705806139] [2021-12-14 18:07:56,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705806139] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 18:07:56,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079360249] [2021-12-14 18:07:56,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:56,771 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:07:56,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:07:56,772 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 18:07:56,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-14 18:07:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:57,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 4896 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 18:07:57,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:07:57,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 18:07:57,950 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:07:57,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079360249] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:07:57,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 18:07:57,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-14 18:07:57,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237584083] [2021-12-14 18:07:57,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:07:57,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:07:57,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:07:57,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:07:57,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:07:57,951 INFO L87 Difference]: Start difference. First operand 10431 states and 14709 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 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) [2021-12-14 18:07:58,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:07:58,297 INFO L93 Difference]: Finished difference Result 27282 states and 38819 transitions. [2021-12-14 18:07:58,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:07:58,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 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 37 [2021-12-14 18:07:58,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:07:58,373 INFO L225 Difference]: With dead ends: 27282 [2021-12-14 18:07:58,373 INFO L226 Difference]: Without dead ends: 16857 [2021-12-14 18:07:58,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:07:58,424 INFO L933 BasicCegarLoop]: 5600 mSDtfsCounter, 4094 mSDsluCounter, 3015 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4094 SdHoareTripleChecker+Valid, 8615 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:07:58,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4094 Valid, 8615 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:07:58,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16857 states. [2021-12-14 18:07:58,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16857 to 16814. [2021-12-14 18:07:58,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16814 states, 11541 states have (on average 1.3417381509401265) internal successors, (15485), 11825 states have internal predecessors, (15485), 3966 states have call successors, (3966), 1300 states have call predecessors, (3966), 1306 states have return successors, (4152), 3925 states have call predecessors, (4152), 3952 states have call successors, (4152) [2021-12-14 18:07:59,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16814 states to 16814 states and 23603 transitions. [2021-12-14 18:07:59,056 INFO L78 Accepts]: Start accepts. Automaton has 16814 states and 23603 transitions. Word has length 37 [2021-12-14 18:07:59,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:07:59,057 INFO L470 AbstractCegarLoop]: Abstraction has 16814 states and 23603 transitions. [2021-12-14 18:07:59,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 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) [2021-12-14 18:07:59,057 INFO L276 IsEmpty]: Start isEmpty. Operand 16814 states and 23603 transitions. [2021-12-14 18:07:59,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-14 18:07:59,058 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:07:59,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:07:59,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-14 18:07:59,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:07:59,271 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:07:59,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:07:59,272 INFO L85 PathProgramCache]: Analyzing trace with hash -872965348, now seen corresponding path program 1 times [2021-12-14 18:07:59,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:07:59,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626984734] [2021-12-14 18:07:59,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:59,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:07:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:59,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:07:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:07:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 18:07:59,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:07:59,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626984734] [2021-12-14 18:07:59,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626984734] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 18:07:59,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83659802] [2021-12-14 18:07:59,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:07:59,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:07:59,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:07:59,459 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 18:07:59,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-14 18:08:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:00,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 4898 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 18:08:00,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:08:00,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 18:08:00,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:08:00,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83659802] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:08:00,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 18:08:00,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-14 18:08:00,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697797918] [2021-12-14 18:08:00,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:08:00,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:08:00,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:08:00,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:08:00,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:08:00,611 INFO L87 Difference]: Start difference. First operand 16814 states and 23603 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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) [2021-12-14 18:08:01,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:08:01,298 INFO L93 Difference]: Finished difference Result 50386 states and 72507 transitions. [2021-12-14 18:08:01,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:08:01,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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 38 [2021-12-14 18:08:01,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:08:01,460 INFO L225 Difference]: With dead ends: 50386 [2021-12-14 18:08:01,461 INFO L226 Difference]: Without dead ends: 33578 [2021-12-14 18:08:01,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:08:01,547 INFO L933 BasicCegarLoop]: 5933 mSDtfsCounter, 4869 mSDsluCounter, 4896 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4869 SdHoareTripleChecker+Valid, 10829 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:08:01,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4869 Valid, 10829 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:08:01,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33578 states. [2021-12-14 18:08:02,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33578 to 33539. [2021-12-14 18:08:02,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33539 states, 23027 states have (on average 1.3420766925782777) internal successors, (30904), 23588 states have internal predecessors, (30904), 7907 states have call successors, (7907), 2595 states have call predecessors, (7907), 2604 states have return successors, (9180), 7829 states have call predecessors, (9180), 7892 states have call successors, (9180) [2021-12-14 18:08:02,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33539 states to 33539 states and 47991 transitions. [2021-12-14 18:08:02,687 INFO L78 Accepts]: Start accepts. Automaton has 33539 states and 47991 transitions. Word has length 38 [2021-12-14 18:08:02,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:08:02,687 INFO L470 AbstractCegarLoop]: Abstraction has 33539 states and 47991 transitions. [2021-12-14 18:08:02,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 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) [2021-12-14 18:08:02,688 INFO L276 IsEmpty]: Start isEmpty. Operand 33539 states and 47991 transitions. [2021-12-14 18:08:02,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-14 18:08:02,689 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:08:02,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:08:02,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-14 18:08:02,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:08:02,907 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:08:02,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:08:02,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1293460416, now seen corresponding path program 1 times [2021-12-14 18:08:02,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:08:02,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708695887] [2021-12-14 18:08:02,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:08:02,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:08:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:03,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:08:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:03,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 18:08:03,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:08:03,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708695887] [2021-12-14 18:08:03,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708695887] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 18:08:03,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802756181] [2021-12-14 18:08:03,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:08:03,075 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:08:03,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:08:03,076 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 18:08:03,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-14 18:08:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:04,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 4900 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 18:08:04,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:08:04,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 18:08:04,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:08:04,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802756181] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:08:04,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 18:08:04,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-12-14 18:08:04,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738909518] [2021-12-14 18:08:04,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:08:04,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:08:04,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:08:04,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:08:04,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:08:04,195 INFO L87 Difference]: Start difference. First operand 33539 states and 47991 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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) [2021-12-14 18:08:04,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:08:04,919 INFO L93 Difference]: Finished difference Result 33667 states and 48081 transitions. [2021-12-14 18:08:04,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:08:04,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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 39 [2021-12-14 18:08:04,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:08:05,209 INFO L225 Difference]: With dead ends: 33667 [2021-12-14 18:08:05,209 INFO L226 Difference]: Without dead ends: 33635 [2021-12-14 18:08:05,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:08:05,226 INFO L933 BasicCegarLoop]: 4827 mSDtfsCounter, 4742 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4742 SdHoareTripleChecker+Valid, 4881 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:08:05,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4742 Valid, 4881 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:08:05,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33635 states. [2021-12-14 18:08:06,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33635 to 33633. [2021-12-14 18:08:06,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33633 states, 23093 states have (on average 1.3401463646992595) internal successors, (30948), 23653 states have internal predecessors, (30948), 7900 states have call successors, (7900), 2630 states have call predecessors, (7900), 2639 states have return successors, (9174), 7823 states have call predecessors, (9174), 7886 states have call successors, (9174) [2021-12-14 18:08:06,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33633 states to 33633 states and 48022 transitions. [2021-12-14 18:08:06,273 INFO L78 Accepts]: Start accepts. Automaton has 33633 states and 48022 transitions. Word has length 39 [2021-12-14 18:08:06,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:08:06,274 INFO L470 AbstractCegarLoop]: Abstraction has 33633 states and 48022 transitions. [2021-12-14 18:08:06,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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) [2021-12-14 18:08:06,274 INFO L276 IsEmpty]: Start isEmpty. Operand 33633 states and 48022 transitions. [2021-12-14 18:08:06,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-14 18:08:06,279 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:08:06,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:08:06,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-14 18:08:06,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:08:06,503 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:08:06,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:08:06,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1815788574, now seen corresponding path program 1 times [2021-12-14 18:08:06,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:08:06,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090375381] [2021-12-14 18:08:06,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:08:06,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:08:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:06,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:08:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:06,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:08:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:06,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:08:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:06,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:08:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:06,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 18:08:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:06,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 18:08:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:06,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 18:08:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:06,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-14 18:08:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:08:06,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 18:08:06,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:08:06,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090375381] [2021-12-14 18:08:06,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090375381] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:08:06,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:08:06,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:08:06,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339645453] [2021-12-14 18:08:06,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:08:06,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:08:06,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:08:06,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:08:06,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:08:06,715 INFO L87 Difference]: Start difference. First operand 33633 states and 48022 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8)