./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 6c24879c 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-?-6c24879 [2022-07-12 13:44:04,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:44:04,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:44:04,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:44:04,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:44:04,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:44:04,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:44:04,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:44:04,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:44:04,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:44:04,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:44:04,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:44:04,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:44:04,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:44:04,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:44:04,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:44:04,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:44:04,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:44:04,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:44:04,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:44:04,443 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:44:04,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:44:04,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:44:04,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:44:04,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:44:04,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:44:04,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:44:04,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:44:04,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:44:04,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:44:04,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:44:04,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:44:04,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:44:04,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:44:04,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:44:04,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:44:04,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:44:04,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:44:04,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:44:04,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:44:04,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:44:04,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:44:04,454 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 13:44:04,467 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:44:04,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:44:04,468 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:44:04,468 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:44:04,469 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:44:04,469 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:44:04,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:44:04,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:44:04,482 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:44:04,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:44:04,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 13:44:04,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:44:04,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:44:04,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:44:04,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:44:04,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:44:04,483 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:44:04,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:44:04,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:44:04,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:44:04,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:44:04,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:44:04,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:44:04,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:44:04,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:44:04,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 13:44:04,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 13:44:04,484 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:44:04,485 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:44:04,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:44:04,485 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d123e3c2a314a098b4e7a140b822a7b44f2ae282ca90c74ec5605a44f397143 [2022-07-12 13:44:04,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:44:04,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:44:04,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:44:04,663 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:44:04,663 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:44:04,664 INFO L432 ainManager$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 [2022-07-12 13:44:04,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7d063284/25f8ad720ce14a6aa79c75ef885edad0/FLAGc43eb193a [2022-07-12 13:44:05,307 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:44:05,308 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 [2022-07-12 13:44:05,347 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7d063284/25f8ad720ce14a6aa79c75ef885edad0/FLAGc43eb193a [2022-07-12 13:44:05,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7d063284/25f8ad720ce14a6aa79c75ef885edad0 [2022-07-12 13:44:05,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:44:05,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:44:05,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:44:05,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:44:05,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:44:05,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:44:05" (1/1) ... [2022-07-12 13:44:05,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ec3896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:44:05, skipping insertion in model container [2022-07-12 13:44:05,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:44:05" (1/1) ... [2022-07-12 13:44:05,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:44:05,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:44:08,272 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] [2022-07-12 13:44:08,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:44:08,562 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:44:08,850 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] [2022-07-12 13:44:08,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:44:09,038 INFO L208 MainTranslator]: Completed translation [2022-07-12 13:44:09,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:44:09 WrapperNode [2022-07-12 13:44:09,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 13:44:09,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 13:44:09,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 13:44:09,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 13:44:09,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:44:09" (1/1) ... [2022-07-12 13:44:09,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:44:09" (1/1) ... [2022-07-12 13:44:09,425 INFO L137 Inliner]: procedures = 713, calls = 6159, calls flagged for inlining = 240, calls inlined = 191, statements flattened = 9072 [2022-07-12 13:44:09,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 13:44:09,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 13:44:09,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 13:44:09,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 13:44:09,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:44:09" (1/1) ... [2022-07-12 13:44:09,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:44:09" (1/1) ... [2022-07-12 13:44:09,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:44:09" (1/1) ... [2022-07-12 13:44:09,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:44:09" (1/1) ... [2022-07-12 13:44:09,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:44:09" (1/1) ... [2022-07-12 13:44:09,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:44:09" (1/1) ... [2022-07-12 13:44:09,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:44:09" (1/1) ... [2022-07-12 13:44:09,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 13:44:09,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 13:44:09,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 13:44:09,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 13:44:09,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:44:09" (1/1) ... [2022-07-12 13:44:09,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:44:09,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:44:09,862 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 13:44:09,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 13:44:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-12 13:44:09,890 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-12 13:44:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_msix_exact [2022-07-12 13:44:09,890 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_msix_exact [2022-07-12 13:44:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_signal_notify [2022-07-12 13:44:09,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_signal_notify [2022-07-12 13:44:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_send [2022-07-12 13:44:09,891 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_send [2022-07-12 13:44:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_exists [2022-07-12 13:44:09,891 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_exists [2022-07-12 13:44:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_code_active [2022-07-12 13:44:09,891 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_code_active [2022-07-12 13:44:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_subscriber_mutex [2022-07-12 13:44:09,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_subscriber_mutex [2022-07-12 13:44:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_put [2022-07-12 13:44:09,892 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_put [2022-07-12 13:44:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 13:44:09,892 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 13:44:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_open [2022-07-12 13:44:09,892 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_open [2022-07-12 13:44:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_unregister_user_memory [2022-07-12 13:44:09,892 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_unregister_user_memory [2022-07-12 13:44:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_add_notification [2022-07-12 13:44:09,893 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_add_notification [2022-07-12 13:44:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_unlocked_ioctl [2022-07-12 13:44:09,893 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_unlocked_ioctl [2022-07-12 13:44:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-12 13:44:09,893 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-12 13:44:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 13:44:09,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 13:44:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_get_id [2022-07-12 13:44:09,894 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_get_id [2022-07-12 13:44:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-12 13:44:09,894 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-12 13:44:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_has_entry [2022-07-12 13:44:09,894 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_has_entry [2022-07-12 13:44:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_destroy [2022-07-12 13:44:09,894 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_destroy [2022-07-12 13:44:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_send_datagram [2022-07-12 13:44:09,895 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_send_datagram [2022-07-12 13:44:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-07-12 13:44:09,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-07-12 13:44:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_get [2022-07-12 13:44:09,895 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_get [2022-07-12 13:44:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_get_entry [2022-07-12 13:44:09,896 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_get_entry [2022-07-12 13:44:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-07-12 13:44:09,896 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-07-12 13:44:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure qp_acquire_queue_mutex [2022-07-12 13:44:09,896 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_acquire_queue_mutex [2022-07-12 13:44:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_get_context_id [2022-07-12 13:44:09,896 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_get_context_id [2022-07-12 13:44:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_map_queues [2022-07-12 13:44:09,897 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_map_queues [2022-07-12 13:44:09,897 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_add [2022-07-12 13:44:09,897 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_add [2022-07-12 13:44:09,897 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-12 13:44:09,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-12 13:44:09,898 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 13:44:09,898 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 13:44:09,898 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock___1 [2022-07-12 13:44:09,899 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock___1 [2022-07-12 13:44:09,899 INFO L130 BoogieDeclarations]: Found specification of procedure no_printk [2022-07-12 13:44:09,899 INFO L138 BoogieDeclarations]: Found implementation of procedure no_printk [2022-07-12 13:44:09,899 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_get_head [2022-07-12 13:44:09,899 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_get_head [2022-07-12 13:44:09,899 INFO L130 BoogieDeclarations]: Found specification of procedure dbell_delayed_dispatch [2022-07-12 13:44:09,899 INFO L138 BoogieDeclarations]: Found implementation of procedure dbell_delayed_dispatch [2022-07-12 13:44:09,899 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2022-07-12 13:44:09,899 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2022-07-12 13:44:09,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_vmci_host_dev [2022-07-12 13:44:09,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_vmci_host_dev [2022-07-12 13:44:09,900 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-12 13:44:09,900 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-12 13:44:09,900 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-12 13:44:09,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 13:44:09,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 13:44:09,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_qp_list [2022-07-12 13:44:09,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_qp_list [2022-07-12 13:44:09,901 INFO L130 BoogieDeclarations]: Found specification of procedure dg_delayed_dispatch [2022-07-12 13:44:09,901 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_delayed_dispatch [2022-07-12 13:44:09,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 13:44:09,901 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-07-12 13:44:09,901 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-07-12 13:44:09,901 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-12 13:44:09,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-12 13:44:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-12 13:44:09,902 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-12 13:44:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 13:44:09,902 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 13:44:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_host [2022-07-12 13:44:09,902 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_host [2022-07-12 13:44:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 13:44:09,902 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 13:44:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 13:44:09,903 INFO L130 BoogieDeclarations]: Found specification of procedure qp_reset_saved_headers [2022-07-12 13:44:09,903 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_reset_saved_headers [2022-07-12 13:44:09,903 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_handle [2022-07-12 13:44:09,903 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_handle [2022-07-12 13:44:09,903 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_add_entry [2022-07-12 13:44:09,903 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_add_entry [2022-07-12 13:44:09,903 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid [2022-07-12 13:44:09,903 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid [2022-07-12 13:44:09,904 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_dispatch [2022-07-12 13:44:09,904 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_dispatch [2022-07-12 13:44:09,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 13:44:09,904 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-07-12 13:44:09,904 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-07-12 13:44:09,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_vmci_queue_kern_if [2022-07-12 13:44:09,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_vmci_queue_kern_if [2022-07-12 13:44:09,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 13:44:09,904 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2022-07-12 13:44:09,905 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2022-07-12 13:44:09,905 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_find [2022-07-12 13:44:09,905 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_find [2022-07-12 13:44:09,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 13:44:09,905 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 13:44:09,905 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2022-07-12 13:44:09,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2022-07-12 13:44:09,905 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-07-12 13:44:09,905 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-07-12 13:44:09,906 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_clear_notify_call [2022-07-12 13:44:09,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_clear_notify_call [2022-07-12 13:44:09,906 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-07-12 13:44:09,906 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-07-12 13:44:09,906 INFO L130 BoogieDeclarations]: Found specification of procedure qp_notify_peer [2022-07-12 13:44:09,906 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_notify_peer [2022-07-12 13:44:09,906 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-12 13:44:09,906 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-12 13:44:09,906 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-12 13:44:09,907 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-12 13:44:09,907 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_unset_notify [2022-07-12 13:44:09,907 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_unset_notify [2022-07-12 13:44:09,907 INFO L130 BoogieDeclarations]: Found specification of procedure __hlist_del [2022-07-12 13:44:09,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __hlist_del [2022-07-12 13:44:09,907 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_exit [2022-07-12 13:44:09,907 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_exit [2022-07-12 13:44:09,907 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_destroy [2022-07-12 13:44:09,907 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_destroy [2022-07-12 13:44:09,908 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2022-07-12 13:44:09,908 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2022-07-12 13:44:09,908 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-12 13:44:09,908 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-12 13:44:09,908 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-07-12 13:44:09,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-07-12 13:44:09,908 INFO L130 BoogieDeclarations]: Found specification of procedure qp_lock [2022-07-12 13:44:09,908 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_lock [2022-07-12 13:44:09,908 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-07-12 13:44:09,908 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-07-12 13:44:09,909 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_by_handle [2022-07-12 13:44:09,909 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_by_handle [2022-07-12 13:44:09,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 13:44:09,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 13:44:09,909 INFO L130 BoogieDeclarations]: Found specification of procedure qp_notify_peer_local [2022-07-12 13:44:09,909 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_notify_peer_local [2022-07-12 13:44:09,909 INFO L130 BoogieDeclarations]: Found specification of procedure vunmap [2022-07-12 13:44:09,909 INFO L138 BoogieDeclarations]: Found implementation of procedure vunmap [2022-07-12 13:44:09,909 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_get_user_memory [2022-07-12 13:44:09,910 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_get_user_memory [2022-07-12 13:44:09,910 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_fire_notification [2022-07-12 13:44:09,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_fire_notification [2022-07-12 13:44:09,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 13:44:09,910 INFO L130 BoogieDeclarations]: Found specification of procedure qp_unlock [2022-07-12 13:44:09,910 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_unlock [2022-07-12 13:44:09,910 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_close [2022-07-12 13:44:09,910 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_close [2022-07-12 13:44:09,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 13:44:09,910 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_probe_device [2022-07-12 13:44:09,911 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_probe_device [2022-07-12 13:44:09,911 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid___1 [2022-07-12 13:44:09,911 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid___1 [2022-07-12 13:44:09,911 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid___0 [2022-07-12 13:44:09,911 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid___0 [2022-07-12 13:44:09,911 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_alloc_queue [2022-07-12 13:44:09,911 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_alloc_queue [2022-07-12 13:44:09,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 13:44:09,911 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 13:44:09,912 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_free_ctx [2022-07-12 13:44:09,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_free_ctx [2022-07-12 13:44:09,912 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 13:44:09,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 13:44:09,912 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_poll [2022-07-12 13:44:09,912 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_poll [2022-07-12 13:44:09,912 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-12 13:44:09,912 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-12 13:44:09,912 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-12 13:44:09,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-12 13:44:09,913 INFO L130 BoogieDeclarations]: Found specification of procedure qp_release_pages [2022-07-12 13:44:09,913 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_release_pages [2022-07-12 13:44:09,913 INFO L130 BoogieDeclarations]: Found specification of procedure qp_cleanup_queue_mutex [2022-07-12 13:44:09,913 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_cleanup_queue_mutex [2022-07-12 13:44:09,913 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_get_size [2022-07-12 13:44:09,913 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_get_size [2022-07-12 13:44:09,913 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_hypercall [2022-07-12 13:44:09,913 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_hypercall [2022-07-12 13:44:09,913 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-12 13:44:09,914 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-12 13:44:09,914 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-12 13:44:09,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-12 13:44:09,914 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_remove_entry [2022-07-12 13:44:09,914 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_remove_entry [2022-07-12 13:44:09,914 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 13:44:09,914 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 13:44:09,914 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_q_header_init [2022-07-12 13:44:09,914 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_q_header_init [2022-07-12 13:44:09,915 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add_rcu [2022-07-12 13:44:09,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add_rcu [2022-07-12 13:44:09,915 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_register_user_memory [2022-07-12 13:44:09,915 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_register_user_memory [2022-07-12 13:44:09,915 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-12 13:44:09,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-12 13:44:09,915 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_guest_work [2022-07-12 13:44:09,915 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_guest_work [2022-07-12 13:44:09,915 INFO L130 BoogieDeclarations]: Found specification of procedure drv_cp_harray_to_user [2022-07-12 13:44:09,915 INFO L138 BoogieDeclarations]: Found implementation of procedure drv_cp_harray_to_user [2022-07-12 13:44:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 13:44:09,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 13:44:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 13:44:09,916 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 13:44:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_remove_tail [2022-07-12 13:44:09,916 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_remove_tail [2022-07-12 13:44:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_subscriber_mutex [2022-07-12 13:44:09,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_subscriber_mutex [2022-07-12 13:44:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-12 13:44:09,917 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-12 13:44:09,917 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_supports_host_qp [2022-07-12 13:44:09,917 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_supports_host_qp [2022-07-12 13:44:09,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 13:44:09,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 13:44:09,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 13:44:09,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 13:44:09,917 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_broker_detach [2022-07-12 13:44:09,917 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_broker_detach [2022-07-12 13:44:09,918 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_enqueue_datagram [2022-07-12 13:44:09,918 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_enqueue_datagram [2022-07-12 13:44:09,918 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-12 13:44:09,918 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-12 13:44:09,918 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_unmap_queues [2022-07-12 13:44:09,918 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_unmap_queues [2022-07-12 13:44:09,918 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_rcu [2022-07-12 13:44:09,918 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_rcu [2022-07-12 13:44:09,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_qp_list [2022-07-12 13:44:09,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_qp_list [2022-07-12 13:44:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 13:44:09,919 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 13:44:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 13:44:09,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 13:44:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-12 13:44:09,919 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-12 13:44:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 13:44:09,919 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 13:44:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-07-12 13:44:09,920 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-07-12 13:44:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 13:44:09,920 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 13:44:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2022-07-12 13:44:09,920 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2022-07-12 13:44:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_vmci_queue_kern_if [2022-07-12 13:44:09,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_vmci_queue_kern_if [2022-07-12 13:44:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_notify_dbell [2022-07-12 13:44:09,920 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_notify_dbell [2022-07-12 13:44:09,921 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_append_entry [2022-07-12 13:44:09,921 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_append_entry [2022-07-12 13:44:09,921 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-07-12 13:44:09,921 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-07-12 13:44:09,921 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-12 13:44:09,921 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-12 13:44:09,921 INFO L130 BoogieDeclarations]: Found specification of procedure qp_broker_handle_to_entry [2022-07-12 13:44:09,921 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_broker_handle_to_entry [2022-07-12 13:44:09,921 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qpair_detach [2022-07-12 13:44:09,921 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qpair_detach [2022-07-12 13:44:09,922 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-12 13:44:09,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-12 13:44:09,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 13:44:09,922 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 13:44:09,922 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 13:44:09,922 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_hash [2022-07-12 13:44:09,922 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_hash [2022-07-12 13:44:09,922 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_create [2022-07-12 13:44:09,922 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_create [2022-07-12 13:44:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure event_find [2022-07-12 13:44:09,923 INFO L138 BoogieDeclarations]: Found implementation of procedure event_find [2022-07-12 13:44:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure qp_broker_alloc [2022-07-12 13:44:09,923 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_broker_alloc [2022-07-12 13:44:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 13:44:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_host_work [2022-07-12 13:44:09,923 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_host_work [2022-07-12 13:44:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-07-12 13:44:09,923 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-07-12 13:44:09,923 INFO L130 BoogieDeclarations]: Found specification of procedure hash_32 [2022-07-12 13:44:09,924 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_32 [2022-07-12 13:44:09,924 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail_rcu [2022-07-12 13:44:09,924 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail_rcu [2022-07-12 13:44:09,924 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock___1 [2022-07-12 13:44:09,924 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock___1 [2022-07-12 13:44:09,924 INFO L130 BoogieDeclarations]: Found specification of procedure qp_guest_endpoint_destroy [2022-07-12 13:44:09,924 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_guest_endpoint_destroy [2022-07-12 13:44:09,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 13:44:09,924 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_guest [2022-07-12 13:44:09,925 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_guest [2022-07-12 13:44:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-12 13:44:09,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-12 13:44:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 13:44:09,925 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 13:44:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-12 13:44:09,925 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-12 13:44:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_dispatch [2022-07-12 13:44:09,925 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_dispatch [2022-07-12 13:44:09,925 INFO L130 BoogieDeclarations]: Found specification of procedure qp_release_queue_mutex [2022-07-12 13:44:09,926 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_release_queue_mutex [2022-07-12 13:44:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-12 13:44:09,926 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-12 13:44:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_route [2022-07-12 13:44:09,926 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_route [2022-07-12 13:44:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure get_user_pages_fast [2022-07-12 13:44:09,926 INFO L138 BoogieDeclarations]: Found implementation of procedure get_user_pages_fast [2022-07-12 13:44:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure qp_free_queue [2022-07-12 13:44:09,926 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_free_queue [2022-07-12 13:44:09,926 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_free_queue [2022-07-12 13:44:09,927 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_free_queue [2022-07-12 13:44:09,927 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-12 13:44:09,927 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-12 13:44:09,927 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_set [2022-07-12 13:44:09,927 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_set [2022-07-12 13:44:09,927 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_get_priv_flags [2022-07-12 13:44:09,927 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_get_priv_flags [2022-07-12 13:44:09,927 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_exists [2022-07-12 13:44:09,927 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_exists [2022-07-12 13:44:09,928 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2022-07-12 13:44:09,928 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2022-07-12 13:44:09,928 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_remove [2022-07-12 13:44:09,928 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_remove [2022-07-12 13:44:09,928 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 13:44:09,928 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 13:44:09,928 INFO L130 BoogieDeclarations]: Found specification of procedure qp_init_queue_mutex [2022-07-12 13:44:09,928 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_init_queue_mutex [2022-07-12 13:44:09,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 13:44:09,928 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_context_get_priv_flags [2022-07-12 13:44:09,929 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_context_get_priv_flags [2022-07-12 13:44:09,929 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2022-07-12 13:44:09,929 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2022-07-12 13:44:09,929 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-12 13:44:09,929 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-12 13:44:09,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 13:44:09,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 13:44:09,929 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2022-07-12 13:44:09,929 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2022-07-12 13:44:09,929 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work___0 [2022-07-12 13:44:09,930 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work___0 [2022-07-12 13:44:09,930 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-07-12 13:44:09,930 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-07-12 13:44:09,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 13:44:09,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 13:44:09,930 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_guest_endpoints_exit [2022-07-12 13:44:09,930 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_guest_endpoints_exit [2022-07-12 13:44:09,930 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_HLIST_NODE [2022-07-12 13:44:09,930 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_HLIST_NODE [2022-07-12 13:44:09,931 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-12 13:44:09,931 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-12 13:44:09,931 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-12 13:44:09,931 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-12 13:44:09,931 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_equal [2022-07-12 13:44:09,931 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_equal [2022-07-12 13:44:09,931 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_destroy [2022-07-12 13:44:09,931 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_destroy [2022-07-12 13:44:09,931 INFO L130 BoogieDeclarations]: Found specification of procedure qp_guest_handle_to_entry [2022-07-12 13:44:09,931 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_guest_handle_to_entry [2022-07-12 13:44:09,932 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-12 13:44:09,932 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-12 13:44:09,932 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch [2022-07-12 13:44:09,932 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch [2022-07-12 13:44:09,932 INFO L130 BoogieDeclarations]: Found specification of procedure handle_arr_calc_size [2022-07-12 13:44:09,932 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_arr_calc_size [2022-07-12 13:44:09,932 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2022-07-12 13:44:09,932 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2022-07-12 13:44:09,932 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_unhashed [2022-07-12 13:44:09,933 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_unhashed [2022-07-12 13:44:09,933 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_broker_alloc [2022-07-12 13:44:09,933 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_broker_alloc [2022-07-12 13:44:09,933 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-12 13:44:09,933 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-12 13:44:09,933 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2022-07-12 13:44:09,933 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2022-07-12 13:44:09,933 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-12 13:44:09,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-12 13:44:09,934 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-12 13:44:09,934 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-12 13:44:09,934 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2022-07-12 13:44:09,934 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2022-07-12 13:44:09,934 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_get [2022-07-12 13:44:09,934 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_get [2022-07-12 13:44:09,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_vmci_host_dev [2022-07-12 13:44:09,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_vmci_host_dev [2022-07-12 13:44:09,934 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-12 13:44:09,934 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-12 13:44:09,935 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-07-12 13:44:09,935 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-07-12 13:44:09,935 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_remove_entry [2022-07-12 13:44:09,935 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_remove_entry [2022-07-12 13:44:09,935 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_unsubscribe [2022-07-12 13:44:09,935 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_unsubscribe [2022-07-12 13:44:09,935 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_deny_interaction [2022-07-12 13:44:09,935 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_deny_interaction [2022-07-12 13:44:09,935 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_remove_device [2022-07-12 13:44:09,936 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_remove_device [2022-07-12 13:44:09,936 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_create [2022-07-12 13:44:09,936 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_create [2022-07-12 13:44:09,936 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_code_active [2022-07-12 13:44:09,936 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_code_active [2022-07-12 13:44:09,936 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 13:44:09,936 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 13:44:09,936 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 13:44:09,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 13:44:09,936 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-07-12 13:44:09,937 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-07-12 13:44:09,937 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-12 13:44:09,937 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-12 13:44:09,937 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_lookup [2022-07-12 13:44:09,937 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_lookup [2022-07-12 13:44:09,937 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-07-12 13:44:09,937 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-07-12 13:44:09,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 13:44:09,937 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_create [2022-07-12 13:44:09,937 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_create [2022-07-12 13:44:09,938 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_put [2022-07-12 13:44:09,938 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_put [2022-07-12 13:44:10,814 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 13:44:10,816 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 13:44:11,102 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 13:44:23,656 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 13:44:23,682 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 13:44:23,682 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 13:44:23,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:44:23 BoogieIcfgContainer [2022-07-12 13:44:23,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 13:44:23,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 13:44:23,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 13:44:23,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 13:44:23,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 01:44:05" (1/3) ... [2022-07-12 13:44:23,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db197b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:44:23, skipping insertion in model container [2022-07-12 13:44:23,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:44:09" (2/3) ... [2022-07-12 13:44:23,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db197b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:44:23, skipping insertion in model container [2022-07-12 13:44:23,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:44:23" (3/3) ... [2022-07-12 13:44:23,693 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 [2022-07-12 13:44:23,704 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 13:44:23,704 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 13:44:23,789 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 13:44:23,793 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1cab44ec, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@24cebd2d [2022-07-12 13:44:23,794 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 13:44:23,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 3389 states, 2341 states have (on average 1.3707817172148655) internal successors, (3209), 2408 states have internal predecessors, (3209), 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) [2022-07-12 13:44:23,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-12 13:44:23,810 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:44:23,811 INFO L195 NwaCegarLoop]: 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] [2022-07-12 13:44:23,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:44:23,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:44:23,814 INFO L85 PathProgramCache]: Analyzing trace with hash 289228627, now seen corresponding path program 1 times [2022-07-12 13:44:23,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:44:23,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750860942] [2022-07-12 13:44:23,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:23,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:44:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:24,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 13:44:24,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:44:24,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750860942] [2022-07-12 13:44:24,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750860942] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:44:24,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:44:24,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 13:44:24,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293128225] [2022-07-12 13:44:24,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:44:24,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:44:24,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:44:24,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:44:24,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 13:44:24,423 INFO L87 Difference]: Start difference. First operand has 3389 states, 2341 states have (on average 1.3707817172148655) internal successors, (3209), 2408 states have internal predecessors, (3209), 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) [2022-07-12 13:44:24,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:44:24,666 INFO L93 Difference]: Finished difference Result 6773 states and 9961 transitions. [2022-07-12 13:44:24,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:44:24,669 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 [2022-07-12 13:44:24,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:44:24,703 INFO L225 Difference]: With dead ends: 6773 [2022-07-12 13:44:24,703 INFO L226 Difference]: Without dead ends: 3381 [2022-07-12 13:44:24,723 INFO L412 NwaCegarLoop]: 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 [2022-07-12 13:44:24,726 INFO L413 NwaCegarLoop]: 4866 mSDtfsCounter, 1 mSDsluCounter, 4862 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9728 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:44:24,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 9728 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:44:24,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3381 states. [2022-07-12 13:44:24,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3381 to 3379. [2022-07-12 13:44:24,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3379 states, 2337 states have (on average 1.3658536585365855) internal successors, (3192), 2398 states have internal predecessors, (3192), 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) [2022-07-12 13:44:24,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3379 states to 3379 states and 4855 transitions. [2022-07-12 13:44:24,888 INFO L78 Accepts]: Start accepts. Automaton has 3379 states and 4855 transitions. Word has length 27 [2022-07-12 13:44:24,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:44:24,891 INFO L495 AbstractCegarLoop]: Abstraction has 3379 states and 4855 transitions. [2022-07-12 13:44:24,891 INFO L496 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) [2022-07-12 13:44:24,892 INFO L276 IsEmpty]: Start isEmpty. Operand 3379 states and 4855 transitions. [2022-07-12 13:44:24,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-12 13:44:24,896 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:44:24,897 INFO L195 NwaCegarLoop]: 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] [2022-07-12 13:44:24,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 13:44:24,897 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:44:24,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:44:24,898 INFO L85 PathProgramCache]: Analyzing trace with hash -720615107, now seen corresponding path program 1 times [2022-07-12 13:44:24,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:44:24,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638457813] [2022-07-12 13:44:24,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:24,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:44:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:25,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:44:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:25,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 13:44:25,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:44:25,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638457813] [2022-07-12 13:44:25,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638457813] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:44:25,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:44:25,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 13:44:25,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798311668] [2022-07-12 13:44:25,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:44:25,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 13:44:25,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:44:25,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 13:44:25,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 13:44:25,251 INFO L87 Difference]: Start difference. First operand 3379 states and 4855 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) [2022-07-12 13:44:30,231 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 [] [2022-07-12 13:44:33,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:44:33,636 INFO L93 Difference]: Finished difference Result 10280 states and 14861 transitions. [2022-07-12 13:44:33,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 13:44:33,639 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 [2022-07-12 13:44:33,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:44:33,680 INFO L225 Difference]: With dead ends: 10280 [2022-07-12 13:44:33,680 INFO L226 Difference]: Without dead ends: 6907 [2022-07-12 13:44:33,692 INFO L412 NwaCegarLoop]: 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 [2022-07-12 13:44:33,693 INFO L413 NwaCegarLoop]: 7947 mSDtfsCounter, 5344 mSDsluCounter, 7164 mSDsCounter, 0 mSdLazyCounter, 3353 mSolverCounterSat, 1677 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5937 SdHoareTripleChecker+Valid, 15111 SdHoareTripleChecker+Invalid, 5031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1677 IncrementalHoareTripleChecker+Valid, 3353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:44:33,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5937 Valid, 15111 Invalid, 5031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1677 Valid, 3353 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-07-12 13:44:33,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6907 states. [2022-07-12 13:44:33,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6907 to 6653. [2022-07-12 13:44:33,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6653 states, 4605 states have (on average 1.3656894679695983) internal successors, (6289), 4712 states have internal predecessors, (6289), 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) [2022-07-12 13:44:33,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6653 states to 6653 states and 9560 transitions. [2022-07-12 13:44:33,884 INFO L78 Accepts]: Start accepts. Automaton has 6653 states and 9560 transitions. Word has length 29 [2022-07-12 13:44:33,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:44:33,884 INFO L495 AbstractCegarLoop]: Abstraction has 6653 states and 9560 transitions. [2022-07-12 13:44:33,885 INFO L496 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) [2022-07-12 13:44:33,885 INFO L276 IsEmpty]: Start isEmpty. Operand 6653 states and 9560 transitions. [2022-07-12 13:44:33,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 13:44:33,886 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:44:33,886 INFO L195 NwaCegarLoop]: 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] [2022-07-12 13:44:33,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 13:44:33,886 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:44:33,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:44:33,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1258315447, now seen corresponding path program 1 times [2022-07-12 13:44:33,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:44:33,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172101583] [2022-07-12 13:44:33,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:33,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:44:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:34,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:44:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:34,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 13:44:34,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:44:34,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172101583] [2022-07-12 13:44:34,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172101583] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:44:34,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254604268] [2022-07-12 13:44:34,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:34,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:44:34,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:44:34,105 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) [2022-07-12 13:44:34,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 13:44:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:35,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 4888 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 13:44:35,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:44:35,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 13:44:35,268 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:44:35,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254604268] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:44:35,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 13:44:35,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-12 13:44:35,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294011181] [2022-07-12 13:44:35,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:44:35,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:44:35,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:44:35,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:44:35,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:44:35,270 INFO L87 Difference]: Start difference. First operand 6653 states and 9560 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) [2022-07-12 13:44:35,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:44:35,415 INFO L93 Difference]: Finished difference Result 6655 states and 9561 transitions. [2022-07-12 13:44:35,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:44:35,416 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 [2022-07-12 13:44:35,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:44:35,444 INFO L225 Difference]: With dead ends: 6655 [2022-07-12 13:44:35,444 INFO L226 Difference]: Without dead ends: 6652 [2022-07-12 13:44:35,447 INFO L412 NwaCegarLoop]: 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 [2022-07-12 13:44:35,451 INFO L413 NwaCegarLoop]: 4851 mSDtfsCounter, 4822 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4822 SdHoareTripleChecker+Valid, 4851 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 [2022-07-12 13:44:35,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4822 Valid, 4851 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:44:35,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6652 states. [2022-07-12 13:44:35,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6652 to 6652. [2022-07-12 13:44:35,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6652 states, 4605 states have (on average 1.365472312703583) internal successors, (6288), 4711 states have internal predecessors, (6288), 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) [2022-07-12 13:44:35,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6652 states to 6652 states and 9558 transitions. [2022-07-12 13:44:35,623 INFO L78 Accepts]: Start accepts. Automaton has 6652 states and 9558 transitions. Word has length 33 [2022-07-12 13:44:35,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:44:35,623 INFO L495 AbstractCegarLoop]: Abstraction has 6652 states and 9558 transitions. [2022-07-12 13:44:35,624 INFO L496 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) [2022-07-12 13:44:35,624 INFO L276 IsEmpty]: Start isEmpty. Operand 6652 states and 9558 transitions. [2022-07-12 13:44:35,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-12 13:44:35,624 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:44:35,625 INFO L195 NwaCegarLoop]: 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] [2022-07-12 13:44:35,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 13:44:35,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:44:35,840 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:44:35,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:44:35,840 INFO L85 PathProgramCache]: Analyzing trace with hash 351711725, now seen corresponding path program 1 times [2022-07-12 13:44:35,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:44:35,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611044949] [2022-07-12 13:44:35,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:35,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:44:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:36,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:44:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:36,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 13:44:36,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:44:36,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611044949] [2022-07-12 13:44:36,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611044949] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:44:36,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886585995] [2022-07-12 13:44:36,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:36,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:44:36,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:44:36,069 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) [2022-07-12 13:44:36,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 13:44:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:37,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 4890 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 13:44:37,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:44:37,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 13:44:37,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:44:37,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886585995] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:44:37,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 13:44:37,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-12 13:44:37,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404194458] [2022-07-12 13:44:37,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:44:37,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:44:37,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:44:37,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:44:37,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:44:37,169 INFO L87 Difference]: Start difference. First operand 6652 states and 9558 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) [2022-07-12 13:44:37,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:44:37,304 INFO L93 Difference]: Finished difference Result 6654 states and 9559 transitions. [2022-07-12 13:44:37,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:44:37,304 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 [2022-07-12 13:44:37,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:44:37,330 INFO L225 Difference]: With dead ends: 6654 [2022-07-12 13:44:37,330 INFO L226 Difference]: Without dead ends: 6651 [2022-07-12 13:44:37,333 INFO L412 NwaCegarLoop]: 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 [2022-07-12 13:44:37,333 INFO L413 NwaCegarLoop]: 4849 mSDtfsCounter, 4819 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4819 SdHoareTripleChecker+Valid, 4849 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 [2022-07-12 13:44:37,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4819 Valid, 4849 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:44:37,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6651 states. [2022-07-12 13:44:37,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6651 to 6651. [2022-07-12 13:44:37,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6651 states, 4605 states have (on average 1.3652551574375678) internal successors, (6287), 4710 states have internal predecessors, (6287), 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) [2022-07-12 13:44:37,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6651 states to 6651 states and 9556 transitions. [2022-07-12 13:44:37,530 INFO L78 Accepts]: Start accepts. Automaton has 6651 states and 9556 transitions. Word has length 34 [2022-07-12 13:44:37,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:44:37,530 INFO L495 AbstractCegarLoop]: Abstraction has 6651 states and 9556 transitions. [2022-07-12 13:44:37,531 INFO L496 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) [2022-07-12 13:44:37,531 INFO L276 IsEmpty]: Start isEmpty. Operand 6651 states and 9556 transitions. [2022-07-12 13:44:37,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-12 13:44:37,532 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:44:37,532 INFO L195 NwaCegarLoop]: 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] [2022-07-12 13:44:37,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 13:44:37,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-07-12 13:44:37,739 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:44:37,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:44:37,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1983195014, now seen corresponding path program 1 times [2022-07-12 13:44:37,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:44:37,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483248415] [2022-07-12 13:44:37,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:37,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:44:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:37,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:44:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:37,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 13:44:37,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:44:37,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483248415] [2022-07-12 13:44:37,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483248415] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:44:37,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688629559] [2022-07-12 13:44:37,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:37,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:44:37,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:44:37,947 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) [2022-07-12 13:44:37,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 13:44:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:38,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 4892 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 13:44:39,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:44:39,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 13:44:39,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:44:39,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688629559] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:44:39,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 13:44:39,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-12 13:44:39,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142489576] [2022-07-12 13:44:39,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:44:39,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:44:39,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:44:39,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:44:39,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:44:39,042 INFO L87 Difference]: Start difference. First operand 6651 states and 9556 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) [2022-07-12 13:44:39,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:44:39,174 INFO L93 Difference]: Finished difference Result 10476 states and 14764 transitions. [2022-07-12 13:44:39,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:44:39,174 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 [2022-07-12 13:44:39,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:44:39,225 INFO L225 Difference]: With dead ends: 10476 [2022-07-12 13:44:39,225 INFO L226 Difference]: Without dead ends: 10472 [2022-07-12 13:44:39,231 INFO L412 NwaCegarLoop]: 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 [2022-07-12 13:44:39,232 INFO L413 NwaCegarLoop]: 5326 mSDtfsCounter, 4738 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4738 SdHoareTripleChecker+Valid, 8055 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 [2022-07-12 13:44:39,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4738 Valid, 8055 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:44:39,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10472 states. [2022-07-12 13:44:39,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10472 to 10464. [2022-07-12 13:44:39,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10464 states, 7194 states have (on average 1.348623853211009) internal successors, (9702), 7369 states have internal predecessors, (9702), 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) [2022-07-12 13:44:39,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10464 states to 10464 states and 14751 transitions. [2022-07-12 13:44:39,529 INFO L78 Accepts]: Start accepts. Automaton has 10464 states and 14751 transitions. Word has length 35 [2022-07-12 13:44:39,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:44:39,531 INFO L495 AbstractCegarLoop]: Abstraction has 10464 states and 14751 transitions. [2022-07-12 13:44:39,531 INFO L496 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) [2022-07-12 13:44:39,531 INFO L276 IsEmpty]: Start isEmpty. Operand 10464 states and 14751 transitions. [2022-07-12 13:44:39,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-12 13:44:39,532 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:44:39,532 INFO L195 NwaCegarLoop]: 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] [2022-07-12 13:44:39,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 13:44:39,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:44:39,747 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:44:39,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:44:39,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1350855024, now seen corresponding path program 1 times [2022-07-12 13:44:39,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:44:39,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869950148] [2022-07-12 13:44:39,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:39,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:44:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:39,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:44:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:39,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 13:44:39,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:44:39,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869950148] [2022-07-12 13:44:39,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869950148] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:44:39,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852682596] [2022-07-12 13:44:39,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:39,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:44:39,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:44:39,932 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) [2022-07-12 13:44:39,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 13:44:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:40,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 4894 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 13:44:40,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:44:41,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 13:44:41,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:44:41,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852682596] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:44:41,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 13:44:41,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-12 13:44:41,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301202803] [2022-07-12 13:44:41,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:44:41,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:44:41,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:44:41,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:44:41,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:44:41,036 INFO L87 Difference]: Start difference. First operand 10464 states and 14751 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) [2022-07-12 13:44:41,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:44:41,166 INFO L93 Difference]: Finished difference Result 10466 states and 14752 transitions. [2022-07-12 13:44:41,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:44:41,167 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 [2022-07-12 13:44:41,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:44:41,202 INFO L225 Difference]: With dead ends: 10466 [2022-07-12 13:44:41,202 INFO L226 Difference]: Without dead ends: 10463 [2022-07-12 13:44:41,208 INFO L412 NwaCegarLoop]: 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 [2022-07-12 13:44:41,209 INFO L413 NwaCegarLoop]: 4843 mSDtfsCounter, 4811 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4811 SdHoareTripleChecker+Valid, 4843 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 [2022-07-12 13:44:41,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4811 Valid, 4843 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:44:41,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10463 states. [2022-07-12 13:44:41,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10463 to 10463. [2022-07-12 13:44:41,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10463 states, 7194 states have (on average 1.3484848484848484) internal successors, (9701), 7368 states have internal predecessors, (9701), 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) [2022-07-12 13:44:41,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10463 states to 10463 states and 14749 transitions. [2022-07-12 13:44:41,527 INFO L78 Accepts]: Start accepts. Automaton has 10463 states and 14749 transitions. Word has length 36 [2022-07-12 13:44:41,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:44:41,527 INFO L495 AbstractCegarLoop]: Abstraction has 10463 states and 14749 transitions. [2022-07-12 13:44:41,528 INFO L496 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) [2022-07-12 13:44:41,528 INFO L276 IsEmpty]: Start isEmpty. Operand 10463 states and 14749 transitions. [2022-07-12 13:44:41,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-12 13:44:41,529 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:44:41,529 INFO L195 NwaCegarLoop]: 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] [2022-07-12 13:44:41,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-12 13:44:41,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:44:41,744 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:44:41,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:44:41,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1071820349, now seen corresponding path program 1 times [2022-07-12 13:44:41,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:44:41,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704365545] [2022-07-12 13:44:41,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:41,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:44:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:41,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:44:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:41,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 13:44:41,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:44:41,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704365545] [2022-07-12 13:44:41,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704365545] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:44:41,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332399843] [2022-07-12 13:44:41,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:41,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:44:41,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:44:41,927 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) [2022-07-12 13:44:41,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-12 13:44:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:42,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 4896 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 13:44:42,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:44:43,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 13:44:43,004 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:44:43,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332399843] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:44:43,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 13:44:43,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-12 13:44:43,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585210101] [2022-07-12 13:44:43,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:44:43,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:44:43,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:44:43,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:44:43,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:44:43,006 INFO L87 Difference]: Start difference. First operand 10463 states and 14749 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) [2022-07-12 13:44:43,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:44:43,347 INFO L93 Difference]: Finished difference Result 27378 states and 38939 transitions. [2022-07-12 13:44:43,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:44:43,347 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 [2022-07-12 13:44:43,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:44:43,415 INFO L225 Difference]: With dead ends: 27378 [2022-07-12 13:44:43,415 INFO L226 Difference]: Without dead ends: 16921 [2022-07-12 13:44:43,462 INFO L412 NwaCegarLoop]: 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 [2022-07-12 13:44:43,462 INFO L413 NwaCegarLoop]: 5609 mSDtfsCounter, 4104 mSDsluCounter, 3025 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4104 SdHoareTripleChecker+Valid, 8634 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 [2022-07-12 13:44:43,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4104 Valid, 8634 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:44:43,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16921 states. [2022-07-12 13:44:43,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16921 to 16878. [2022-07-12 13:44:43,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16878 states, 11605 states have (on average 1.3412322274881516) internal successors, (15565), 11889 states have internal predecessors, (15565), 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) [2022-07-12 13:44:43,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16878 states to 16878 states and 23683 transitions. [2022-07-12 13:44:43,909 INFO L78 Accepts]: Start accepts. Automaton has 16878 states and 23683 transitions. Word has length 37 [2022-07-12 13:44:43,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:44:43,909 INFO L495 AbstractCegarLoop]: Abstraction has 16878 states and 23683 transitions. [2022-07-12 13:44:43,910 INFO L496 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) [2022-07-12 13:44:43,910 INFO L276 IsEmpty]: Start isEmpty. Operand 16878 states and 23683 transitions. [2022-07-12 13:44:43,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-12 13:44:43,911 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:44:43,911 INFO L195 NwaCegarLoop]: 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] [2022-07-12 13:44:43,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-12 13:44:44,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:44:44,127 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:44:44,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:44:44,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1134649549, now seen corresponding path program 1 times [2022-07-12 13:44:44,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:44:44,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219890954] [2022-07-12 13:44:44,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:44,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:44:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:44,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:44:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:44,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 13:44:44,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:44:44,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219890954] [2022-07-12 13:44:44,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219890954] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:44:44,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955252489] [2022-07-12 13:44:44,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:44,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:44:44,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:44:44,314 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) [2022-07-12 13:44:44,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-12 13:44:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:45,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 4898 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 13:44:45,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:44:45,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 13:44:45,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:44:45,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955252489] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:44:45,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 13:44:45,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-12 13:44:45,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374938843] [2022-07-12 13:44:45,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:44:45,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:44:45,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:44:45,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:44:45,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:44:45,536 INFO L87 Difference]: Start difference. First operand 16878 states and 23683 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) [2022-07-12 13:44:46,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:44:46,070 INFO L93 Difference]: Finished difference Result 50578 states and 72747 transitions. [2022-07-12 13:44:46,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:44:46,071 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 [2022-07-12 13:44:46,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:44:46,213 INFO L225 Difference]: With dead ends: 50578 [2022-07-12 13:44:46,214 INFO L226 Difference]: Without dead ends: 33706 [2022-07-12 13:44:46,284 INFO L412 NwaCegarLoop]: 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 [2022-07-12 13:44:46,285 INFO L413 NwaCegarLoop]: 5943 mSDtfsCounter, 4879 mSDsluCounter, 4906 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4879 SdHoareTripleChecker+Valid, 10849 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 [2022-07-12 13:44:46,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4879 Valid, 10849 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:44:46,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33706 states. [2022-07-12 13:44:47,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33706 to 33667. [2022-07-12 13:44:47,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33667 states, 23155 states have (on average 1.3415676959619953) internal successors, (31064), 23716 states have internal predecessors, (31064), 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) [2022-07-12 13:44:47,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33667 states to 33667 states and 48151 transitions. [2022-07-12 13:44:47,435 INFO L78 Accepts]: Start accepts. Automaton has 33667 states and 48151 transitions. Word has length 38 [2022-07-12 13:44:47,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:44:47,435 INFO L495 AbstractCegarLoop]: Abstraction has 33667 states and 48151 transitions. [2022-07-12 13:44:47,435 INFO L496 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) [2022-07-12 13:44:47,436 INFO L276 IsEmpty]: Start isEmpty. Operand 33667 states and 48151 transitions. [2022-07-12 13:44:47,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-12 13:44:47,436 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:44:47,436 INFO L195 NwaCegarLoop]: 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] [2022-07-12 13:44:47,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-12 13:44:47,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:44:47,655 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:44:47,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:44:47,656 INFO L85 PathProgramCache]: Analyzing trace with hash -815734784, now seen corresponding path program 1 times [2022-07-12 13:44:47,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:44:47,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006813007] [2022-07-12 13:44:47,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:47,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:44:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:47,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:44:47,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:47,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 13:44:47,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:44:47,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006813007] [2022-07-12 13:44:47,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006813007] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:44:47,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966335664] [2022-07-12 13:44:47,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:47,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:44:47,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:44:47,810 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) [2022-07-12 13:44:47,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-12 13:44:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:48,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 4900 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 13:44:48,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:44:48,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 13:44:48,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:44:48,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966335664] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:44:48,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 13:44:48,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-12 13:44:48,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458020792] [2022-07-12 13:44:48,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:44:48,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:44:48,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:44:48,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:44:48,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:44:48,896 INFO L87 Difference]: Start difference. First operand 33667 states and 48151 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) [2022-07-12 13:44:49,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:44:49,404 INFO L93 Difference]: Finished difference Result 33795 states and 48241 transitions. [2022-07-12 13:44:49,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:44:49,405 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 [2022-07-12 13:44:49,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:44:49,522 INFO L225 Difference]: With dead ends: 33795 [2022-07-12 13:44:49,522 INFO L226 Difference]: Without dead ends: 33763 [2022-07-12 13:44:49,545 INFO L412 NwaCegarLoop]: 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 [2022-07-12 13:44:49,547 INFO L413 NwaCegarLoop]: 4837 mSDtfsCounter, 4752 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4752 SdHoareTripleChecker+Valid, 4891 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 [2022-07-12 13:44:49,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4752 Valid, 4891 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:44:49,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33763 states. [2022-07-12 13:44:50,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33763 to 33761. [2022-07-12 13:44:50,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33761 states, 23221 states have (on average 1.339649455234486) internal successors, (31108), 23781 states have internal predecessors, (31108), 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) [2022-07-12 13:44:50,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33761 states to 33761 states and 48182 transitions. [2022-07-12 13:44:50,677 INFO L78 Accepts]: Start accepts. Automaton has 33761 states and 48182 transitions. Word has length 39 [2022-07-12 13:44:50,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:44:50,677 INFO L495 AbstractCegarLoop]: Abstraction has 33761 states and 48182 transitions. [2022-07-12 13:44:50,677 INFO L496 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) [2022-07-12 13:44:50,677 INFO L276 IsEmpty]: Start isEmpty. Operand 33761 states and 48182 transitions. [2022-07-12 13:44:50,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-12 13:44:50,680 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:44:50,680 INFO L195 NwaCegarLoop]: 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] [2022-07-12 13:44:50,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-12 13:44:50,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:44:50,887 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:44:50,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:44:50,888 INFO L85 PathProgramCache]: Analyzing trace with hash 775182156, now seen corresponding path program 1 times [2022-07-12 13:44:50,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:44:50,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210872373] [2022-07-12 13:44:50,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:44:50,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:44:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:51,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 13:44:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:51,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:44:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:51,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:44:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:51,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:44:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:51,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 13:44:51,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:51,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 13:44:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:51,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 13:44:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:51,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 13:44:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:44:51,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 13:44:51,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:44:51,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210872373] [2022-07-12 13:44:51,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210872373] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:44:51,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:44:51,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:44:51,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196517160] [2022-07-12 13:44:51,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:44:51,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:44:51,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:44:51,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:44:51,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:44:51,132 INFO L87 Difference]: Start difference. First operand 33761 states and 48182 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) [2022-07-12 13:44:55,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:08,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:11,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:13,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:18,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:22,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:45:22,881 INFO L93 Difference]: Finished difference Result 114039 states and 167242 transitions. [2022-07-12 13:45:22,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 13:45:22,882 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 70 [2022-07-12 13:45:22,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:45:23,199 INFO L225 Difference]: With dead ends: 114039 [2022-07-12 13:45:23,199 INFO L226 Difference]: Without dead ends: 80284 [2022-07-12 13:45:23,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-12 13:45:23,518 INFO L413 NwaCegarLoop]: 4705 mSDtfsCounter, 11880 mSDsluCounter, 5942 mSDsCounter, 0 mSdLazyCounter, 11403 mSolverCounterSat, 7534 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12623 SdHoareTripleChecker+Valid, 10647 SdHoareTripleChecker+Invalid, 18941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7534 IncrementalHoareTripleChecker+Valid, 11403 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.6s IncrementalHoareTripleChecker+Time [2022-07-12 13:45:23,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12623 Valid, 10647 Invalid, 18941 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7534 Valid, 11403 Invalid, 4 Unknown, 0 Unchecked, 29.6s Time] [2022-07-12 13:45:23,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80284 states. [2022-07-12 13:45:25,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80284 to 72962. [2022-07-12 13:45:25,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72962 states, 50120 states have (on average 1.3353551476456504) internal successors, (66928), 51196 states have internal predecessors, (66928), 17123 states have call successors, (17123), 5257 states have call predecessors, (17123), 5718 states have return successors, (21132), 17520 states have call predecessors, (21132), 17108 states have call successors, (21132) [2022-07-12 13:45:26,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72962 states to 72962 states and 105183 transitions. [2022-07-12 13:45:26,537 INFO L78 Accepts]: Start accepts. Automaton has 72962 states and 105183 transitions. Word has length 70 [2022-07-12 13:45:26,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:45:26,538 INFO L495 AbstractCegarLoop]: Abstraction has 72962 states and 105183 transitions. [2022-07-12 13:45:26,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-07-12 13:45:26,538 INFO L276 IsEmpty]: Start isEmpty. Operand 72962 states and 105183 transitions. [2022-07-12 13:45:26,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-12 13:45:26,544 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:45:26,544 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:45:26,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 13:45:26,544 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:45:26,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:45:26,545 INFO L85 PathProgramCache]: Analyzing trace with hash -536222083, now seen corresponding path program 1 times [2022-07-12 13:45:26,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:45:26,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132888040] [2022-07-12 13:45:26,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:45:26,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:45:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 13:45:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:45:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 13:45:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 13:45:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 13:45:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 13:45:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 13:45:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:45:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 13:45:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 13:45:26,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 13:45:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 13:45:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:45:26,937 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-12 13:45:26,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:45:26,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132888040] [2022-07-12 13:45:26,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132888040] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:45:26,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:45:26,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 13:45:26,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903329362] [2022-07-12 13:45:26,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:45:26,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 13:45:26,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:45:26,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 13:45:26,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 13:45:26,940 INFO L87 Difference]: Start difference. First operand 72962 states and 105183 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 13:45:31,809 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 [] [2022-07-12 13:45:36,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:49,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:50,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:53,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:45:57,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:45:57,588 INFO L93 Difference]: Finished difference Result 178532 states and 260995 transitions. [2022-07-12 13:45:57,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 13:45:57,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2022-07-12 13:45:57,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:45:58,138 INFO L225 Difference]: With dead ends: 178532 [2022-07-12 13:45:58,139 INFO L226 Difference]: Without dead ends: 105576 [2022-07-12 13:45:58,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-07-12 13:45:58,308 INFO L413 NwaCegarLoop]: 3945 mSDtfsCounter, 11028 mSDsluCounter, 2573 mSDsCounter, 0 mSdLazyCounter, 11505 mSolverCounterSat, 7320 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11714 SdHoareTripleChecker+Valid, 6518 SdHoareTripleChecker+Invalid, 18827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7320 IncrementalHoareTripleChecker+Valid, 11505 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2022-07-12 13:45:58,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11714 Valid, 6518 Invalid, 18827 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7320 Valid, 11505 Invalid, 2 Unknown, 0 Unchecked, 27.2s Time] [2022-07-12 13:45:58,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105576 states. [2022-07-12 13:46:01,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105576 to 95870. [2022-07-12 13:46:01,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95870 states, 65749 states have (on average 1.3317464904409193) internal successors, (87561), 67223 states have internal predecessors, (87561), 22346 states have call successors, (22346), 7154 states have call predecessors, (22346), 7774 states have return successors, (27627), 22846 states have call predecessors, (27627), 22331 states have call successors, (27627) [2022-07-12 13:46:02,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95870 states to 95870 states and 137534 transitions. [2022-07-12 13:46:02,049 INFO L78 Accepts]: Start accepts. Automaton has 95870 states and 137534 transitions. Word has length 119 [2022-07-12 13:46:02,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:46:02,049 INFO L495 AbstractCegarLoop]: Abstraction has 95870 states and 137534 transitions. [2022-07-12 13:46:02,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 13:46:02,050 INFO L276 IsEmpty]: Start isEmpty. Operand 95870 states and 137534 transitions. [2022-07-12 13:46:02,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-12 13:46:02,053 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:46:02,053 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:46:02,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 13:46:02,054 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:46:02,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:46:02,054 INFO L85 PathProgramCache]: Analyzing trace with hash -156120456, now seen corresponding path program 1 times [2022-07-12 13:46:02,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:46:02,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118294919] [2022-07-12 13:46:02,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:46:02,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:46:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:02,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:46:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:02,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 13:46:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:02,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:02,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:46:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:02,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 13:46:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:02,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:02,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:46:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:02,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:46:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:02,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 13:46:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:02,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-12 13:46:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:02,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 13:46:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:02,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 13:46:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:02,522 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-12 13:46:02,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:46:02,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118294919] [2022-07-12 13:46:02,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118294919] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:46:02,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921497231] [2022-07-12 13:46:02,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:46:02,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:46:02,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:46:02,528 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 13:46:02,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-12 13:46:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:03,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 5716 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 13:46:03,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:46:03,793 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 13:46:03,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:46:03,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921497231] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:46:03,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 13:46:03,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-12 13:46:03,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150853522] [2022-07-12 13:46:03,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:46:03,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 13:46:03,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:46:03,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 13:46:03,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:46:03,794 INFO L87 Difference]: Start difference. First operand 95870 states and 137534 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 13:46:08,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:46:08,293 INFO L93 Difference]: Finished difference Result 236948 states and 339851 transitions. [2022-07-12 13:46:08,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 13:46:08,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 118 [2022-07-12 13:46:08,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:46:08,858 INFO L225 Difference]: With dead ends: 236948 [2022-07-12 13:46:08,859 INFO L226 Difference]: Without dead ends: 141084 [2022-07-12 13:46:09,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:46:09,270 INFO L413 NwaCegarLoop]: 6106 mSDtfsCounter, 4791 mSDsluCounter, 4798 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4791 SdHoareTripleChecker+Valid, 10904 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:46:09,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4791 Valid, 10904 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 13:46:09,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141084 states. [2022-07-12 13:46:13,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141084 to 141035. [2022-07-12 13:46:13,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141035 states, 96771 states have (on average 1.3318349505533682) internal successors, (128883), 98932 states have internal predecessors, (128883), 32829 states have call successors, (32829), 10529 states have call predecessors, (32829), 11434 states have return successors, (40545), 33563 states have call predecessors, (40545), 32813 states have call successors, (40545) [2022-07-12 13:46:14,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141035 states to 141035 states and 202257 transitions. [2022-07-12 13:46:14,734 INFO L78 Accepts]: Start accepts. Automaton has 141035 states and 202257 transitions. Word has length 118 [2022-07-12 13:46:14,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:46:14,735 INFO L495 AbstractCegarLoop]: Abstraction has 141035 states and 202257 transitions. [2022-07-12 13:46:14,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 13:46:14,735 INFO L276 IsEmpty]: Start isEmpty. Operand 141035 states and 202257 transitions. [2022-07-12 13:46:14,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-12 13:46:14,738 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:46:14,739 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:46:14,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-12 13:46:14,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-12 13:46:14,959 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:46:14,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:46:14,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1927376758, now seen corresponding path program 1 times [2022-07-12 13:46:14,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:46:14,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96214892] [2022-07-12 13:46:14,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:46:14,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:46:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:15,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:46:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:15,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 13:46:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:15,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:15,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:46:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:15,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 13:46:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:15,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 13:46:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:15,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 13:46:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:15,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:15,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:15,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:46:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:15,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 13:46:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:15,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:46:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:15,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 13:46:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:15,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 13:46:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:15,331 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 13:46:15,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:46:15,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96214892] [2022-07-12 13:46:15,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96214892] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:46:15,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355372854] [2022-07-12 13:46:15,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:46:15,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:46:15,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:46:15,333 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 13:46:15,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-12 13:46:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:46:16,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 5942 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 13:46:16,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:46:16,597 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 13:46:16,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:46:16,686 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 13:46:16,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355372854] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 13:46:16,687 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 13:46:16,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2022-07-12 13:46:16,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546257848] [2022-07-12 13:46:16,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 13:46:16,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 13:46:16,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:46:16,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 13:46:16,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-12 13:46:16,688 INFO L87 Difference]: Start difference. First operand 141035 states and 202257 transitions. Second operand has 10 states, 10 states have (on average 14.3) internal successors, (143), 7 states have internal predecessors, (143), 5 states have call successors, (37), 5 states have call predecessors, (37), 2 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2022-07-12 13:46:20,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:32,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:40,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:42,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:46,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:48,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:46:57,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:46:57,058 INFO L93 Difference]: Finished difference Result 297306 states and 432532 transitions. [2022-07-12 13:46:57,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 13:46:57,059 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 7 states have internal predecessors, (143), 5 states have call successors, (37), 5 states have call predecessors, (37), 2 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 122 [2022-07-12 13:46:57,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:46:57,726 INFO L225 Difference]: With dead ends: 297306 [2022-07-12 13:46:57,726 INFO L226 Difference]: Without dead ends: 156277 [2022-07-12 13:46:58,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-07-12 13:46:58,091 INFO L413 NwaCegarLoop]: 4117 mSDtfsCounter, 3276 mSDsluCounter, 5515 mSDsCounter, 0 mSdLazyCounter, 8843 mSolverCounterSat, 1696 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3790 SdHoareTripleChecker+Valid, 9632 SdHoareTripleChecker+Invalid, 10543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1696 IncrementalHoareTripleChecker+Valid, 8843 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2022-07-12 13:46:58,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3790 Valid, 9632 Invalid, 10543 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1696 Valid, 8843 Invalid, 4 Unknown, 0 Unchecked, 32.3s Time] [2022-07-12 13:46:58,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156277 states. [2022-07-12 13:47:05,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156277 to 141559. [2022-07-12 13:47:05,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141559 states, 97131 states have (on average 1.330934511124152) internal successors, (129275), 99292 states have internal predecessors, (129275), 32897 states have call successors, (32897), 10529 states have call predecessors, (32897), 11530 states have return successors, (40721), 33727 states have call predecessors, (40721), 32881 states have call successors, (40721) [2022-07-12 13:47:06,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141559 states to 141559 states and 202893 transitions. [2022-07-12 13:47:06,285 INFO L78 Accepts]: Start accepts. Automaton has 141559 states and 202893 transitions. Word has length 122 [2022-07-12 13:47:06,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:47:06,286 INFO L495 AbstractCegarLoop]: Abstraction has 141559 states and 202893 transitions. [2022-07-12 13:47:06,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 7 states have internal predecessors, (143), 5 states have call successors, (37), 5 states have call predecessors, (37), 2 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2022-07-12 13:47:06,286 INFO L276 IsEmpty]: Start isEmpty. Operand 141559 states and 202893 transitions. [2022-07-12 13:47:06,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-12 13:47:06,290 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:47:06,290 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:47:06,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-12 13:47:06,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-12 13:47:06,503 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:47:06,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:47:06,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1092744394, now seen corresponding path program 2 times [2022-07-12 13:47:06,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:47:06,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457159984] [2022-07-12 13:47:06,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:47:06,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:47:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:06,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 13:47:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:06,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 13:47:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:06,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 13:47:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:06,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 13:47:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:06,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 13:47:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:06,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:06,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:47:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:06,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 13:47:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:06,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 13:47:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:06,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 13:47:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:07,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:07,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:07,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:47:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:07,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 13:47:07,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:07,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 13:47:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:07,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 13:47:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:07,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 13:47:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:47:07,087 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-07-12 13:47:07,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:47:07,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457159984] [2022-07-12 13:47:07,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457159984] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:47:07,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:47:07,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 13:47:07,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029230817] [2022-07-12 13:47:07,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:47:07,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 13:47:07,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:47:07,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 13:47:07,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 13:47:07,091 INFO L87 Difference]: Start difference. First operand 141559 states and 202893 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 13:47:11,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:47:13,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []