./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 35987657 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-?-3598765 [2022-07-21 12:17:54,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 12:17:54,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 12:17:54,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 12:17:54,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 12:17:54,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 12:17:54,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 12:17:54,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 12:17:54,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 12:17:54,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 12:17:54,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 12:17:54,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 12:17:54,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 12:17:54,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 12:17:54,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 12:17:54,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 12:17:54,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 12:17:54,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 12:17:54,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 12:17:54,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 12:17:54,613 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 12:17:54,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 12:17:54,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 12:17:54,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 12:17:54,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 12:17:54,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 12:17:54,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 12:17:54,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 12:17:54,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 12:17:54,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 12:17:54,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 12:17:54,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 12:17:54,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 12:17:54,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 12:17:54,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 12:17:54,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 12:17:54,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 12:17:54,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 12:17:54,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 12:17:54,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 12:17:54,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 12:17:54,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 12:17:54,645 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 12:17:54,671 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 12:17:54,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 12:17:54,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 12:17:54,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 12:17:54,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 12:17:54,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 12:17:54,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 12:17:54,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 12:17:54,675 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 12:17:54,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 12:17:54,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 12:17:54,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 12:17:54,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 12:17:54,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 12:17:54,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 12:17:54,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 12:17:54,676 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 12:17:54,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 12:17:54,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 12:17:54,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 12:17:54,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 12:17:54,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:17:54,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 12:17:54,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 12:17:54,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 12:17:54,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 12:17:54,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 12:17:54,678 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 12:17:54,678 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 12:17:54,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 12:17:54,679 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d123e3c2a314a098b4e7a140b822a7b44f2ae282ca90c74ec5605a44f397143 [2022-07-21 12:17:54,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 12:17:54,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 12:17:54,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 12:17:54,975 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 12:17:54,975 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 12:17:54,976 INFO L432 ainManager$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 [2022-07-21 12:17:55,020 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e449503dc/aa25de5518f34980aca60efffba73672/FLAG1589a4c55 [2022-07-21 12:17:55,913 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 12:17:55,913 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 [2022-07-21 12:17:55,969 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e449503dc/aa25de5518f34980aca60efffba73672/FLAG1589a4c55 [2022-07-21 12:17:56,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e449503dc/aa25de5518f34980aca60efffba73672 [2022-07-21 12:17:56,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 12:17:56,330 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 12:17:56,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 12:17:56,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 12:17:56,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 12:17:56,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:17:56" (1/1) ... [2022-07-21 12:17:56,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cbb49e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:17:56, skipping insertion in model container [2022-07-21 12:17:56,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:17:56" (1/1) ... [2022-07-21 12:17:56,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 12:17:56,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:17:59,964 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] [2022-07-21 12:18:00,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:18:00,275 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 12:18:00,592 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] [2022-07-21 12:18:00,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:18:00,952 INFO L208 MainTranslator]: Completed translation [2022-07-21 12:18:00,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:18:00 WrapperNode [2022-07-21 12:18:00,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 12:18:00,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 12:18:00,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 12:18:00,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 12:18:00,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:18:00" (1/1) ... [2022-07-21 12:18:01,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:18:00" (1/1) ... [2022-07-21 12:18:01,335 INFO L137 Inliner]: procedures = 713, calls = 6159, calls flagged for inlining = 240, calls inlined = 191, statements flattened = 9072 [2022-07-21 12:18:01,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 12:18:01,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 12:18:01,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 12:18:01,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 12:18:01,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:18:00" (1/1) ... [2022-07-21 12:18:01,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:18:00" (1/1) ... [2022-07-21 12:18:01,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:18:00" (1/1) ... [2022-07-21 12:18:01,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:18:00" (1/1) ... [2022-07-21 12:18:01,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:18:00" (1/1) ... [2022-07-21 12:18:01,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:18:00" (1/1) ... [2022-07-21 12:18:01,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:18:00" (1/1) ... [2022-07-21 12:18:01,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 12:18:01,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 12:18:01,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 12:18:01,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 12:18:01,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:18:00" (1/1) ... [2022-07-21 12:18:01,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:18:01,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:18:01,762 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) [2022-07-21 12:18:01,826 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 [2022-07-21 12:18:01,889 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-21 12:18:01,889 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-21 12:18:01,889 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_msix_exact [2022-07-21 12:18:01,889 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_msix_exact [2022-07-21 12:18:01,889 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_signal_notify [2022-07-21 12:18:01,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_signal_notify [2022-07-21 12:18:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_send [2022-07-21 12:18:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_send [2022-07-21 12:18:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_exists [2022-07-21 12:18:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_exists [2022-07-21 12:18:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_code_active [2022-07-21 12:18:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_code_active [2022-07-21 12:18:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_subscriber_mutex [2022-07-21 12:18:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_subscriber_mutex [2022-07-21 12:18:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_put [2022-07-21 12:18:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_put [2022-07-21 12:18:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 12:18:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 12:18:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_open [2022-07-21 12:18:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_open [2022-07-21 12:18:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_unregister_user_memory [2022-07-21 12:18:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_unregister_user_memory [2022-07-21 12:18:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_add_notification [2022-07-21 12:18:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_add_notification [2022-07-21 12:18:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_unlocked_ioctl [2022-07-21 12:18:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_unlocked_ioctl [2022-07-21 12:18:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-21 12:18:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-21 12:18:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 12:18:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 12:18:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_get_id [2022-07-21 12:18:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_get_id [2022-07-21 12:18:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-21 12:18:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-21 12:18:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_has_entry [2022-07-21 12:18:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_has_entry [2022-07-21 12:18:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_destroy [2022-07-21 12:18:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_destroy [2022-07-21 12:18:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_send_datagram [2022-07-21 12:18:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_send_datagram [2022-07-21 12:18:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-07-21 12:18:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-07-21 12:18:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_get [2022-07-21 12:18:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_get [2022-07-21 12:18:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_get_entry [2022-07-21 12:18:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_get_entry [2022-07-21 12:18:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-07-21 12:18:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-07-21 12:18:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure qp_acquire_queue_mutex [2022-07-21 12:18:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_acquire_queue_mutex [2022-07-21 12:18:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_get_context_id [2022-07-21 12:18:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_get_context_id [2022-07-21 12:18:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_map_queues [2022-07-21 12:18:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_map_queues [2022-07-21 12:18:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_add [2022-07-21 12:18:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_add [2022-07-21 12:18:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-21 12:18:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-21 12:18:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 12:18:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 12:18:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock___1 [2022-07-21 12:18:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock___1 [2022-07-21 12:18:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure no_printk [2022-07-21 12:18:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure no_printk [2022-07-21 12:18:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_get_head [2022-07-21 12:18:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_get_head [2022-07-21 12:18:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure dbell_delayed_dispatch [2022-07-21 12:18:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure dbell_delayed_dispatch [2022-07-21 12:18:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2022-07-21 12:18:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2022-07-21 12:18:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_vmci_host_dev [2022-07-21 12:18:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_vmci_host_dev [2022-07-21 12:18:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-21 12:18:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-21 12:18:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-21 12:18:01,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 12:18:01,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 12:18:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_qp_list [2022-07-21 12:18:01,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_qp_list [2022-07-21 12:18:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure dg_delayed_dispatch [2022-07-21 12:18:01,894 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_delayed_dispatch [2022-07-21 12:18:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 12:18:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-07-21 12:18:01,894 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-07-21 12:18:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-21 12:18:01,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-21 12:18:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-21 12:18:01,894 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-21 12:18:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 12:18:01,894 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 12:18:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_host [2022-07-21 12:18:01,894 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_host [2022-07-21 12:18:01,894 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 12:18:01,894 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 12:18:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 12:18:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure qp_reset_saved_headers [2022-07-21 12:18:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_reset_saved_headers [2022-07-21 12:18:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_handle [2022-07-21 12:18:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_handle [2022-07-21 12:18:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_add_entry [2022-07-21 12:18:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_add_entry [2022-07-21 12:18:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid [2022-07-21 12:18:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid [2022-07-21 12:18:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_dispatch [2022-07-21 12:18:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_dispatch [2022-07-21 12:18:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 12:18:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-07-21 12:18:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-07-21 12:18:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_vmci_queue_kern_if [2022-07-21 12:18:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_vmci_queue_kern_if [2022-07-21 12:18:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 12:18:01,895 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2022-07-21 12:18:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2022-07-21 12:18:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_find [2022-07-21 12:18:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_find [2022-07-21 12:18:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 12:18:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 12:18:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_creds [2022-07-21 12:18:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_creds [2022-07-21 12:18:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-07-21 12:18:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-07-21 12:18:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_clear_notify_call [2022-07-21 12:18:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_clear_notify_call [2022-07-21 12:18:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-07-21 12:18:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-07-21 12:18:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure qp_notify_peer [2022-07-21 12:18:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_notify_peer [2022-07-21 12:18:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-21 12:18:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-21 12:18:01,896 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-21 12:18:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-21 12:18:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_unset_notify [2022-07-21 12:18:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_unset_notify [2022-07-21 12:18:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure __hlist_del [2022-07-21 12:18:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __hlist_del [2022-07-21 12:18:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_exit [2022-07-21 12:18:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_exit [2022-07-21 12:18:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_destroy [2022-07-21 12:18:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_destroy [2022-07-21 12:18:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure get_cred [2022-07-21 12:18:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cred [2022-07-21 12:18:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-21 12:18:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-21 12:18:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-07-21 12:18:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-07-21 12:18:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure qp_lock [2022-07-21 12:18:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_lock [2022-07-21 12:18:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-07-21 12:18:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-07-21 12:18:01,897 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_by_handle [2022-07-21 12:18:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_by_handle [2022-07-21 12:18:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 12:18:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 12:18:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure qp_notify_peer_local [2022-07-21 12:18:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_notify_peer_local [2022-07-21 12:18:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure vunmap [2022-07-21 12:18:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure vunmap [2022-07-21 12:18:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_get_user_memory [2022-07-21 12:18:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_get_user_memory [2022-07-21 12:18:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_fire_notification [2022-07-21 12:18:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_fire_notification [2022-07-21 12:18:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 12:18:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure qp_unlock [2022-07-21 12:18:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_unlock [2022-07-21 12:18:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_close [2022-07-21 12:18:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_close [2022-07-21 12:18:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 12:18:01,898 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_probe_device [2022-07-21 12:18:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_probe_device [2022-07-21 12:18:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid___1 [2022-07-21 12:18:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid___1 [2022-07-21 12:18:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_invalid___0 [2022-07-21 12:18:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_invalid___0 [2022-07-21 12:18:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_alloc_queue [2022-07-21 12:18:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_alloc_queue [2022-07-21 12:18:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 12:18:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 12:18:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure ctx_free_ctx [2022-07-21 12:18:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ctx_free_ctx [2022-07-21 12:18:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 12:18:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 12:18:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_poll [2022-07-21 12:18:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_poll [2022-07-21 12:18:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-21 12:18:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-21 12:18:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-21 12:18:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-21 12:18:01,899 INFO L130 BoogieDeclarations]: Found specification of procedure qp_release_pages [2022-07-21 12:18:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_release_pages [2022-07-21 12:18:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure qp_cleanup_queue_mutex [2022-07-21 12:18:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_cleanup_queue_mutex [2022-07-21 12:18:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_get_size [2022-07-21 12:18:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_get_size [2022-07-21 12:18:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_hypercall [2022-07-21 12:18:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_hypercall [2022-07-21 12:18:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-21 12:18:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-21 12:18:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-21 12:18:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-21 12:18:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure qp_list_remove_entry [2022-07-21 12:18:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_list_remove_entry [2022-07-21 12:18:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 12:18:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 12:18:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_q_header_init [2022-07-21 12:18:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_q_header_init [2022-07-21 12:18:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add_rcu [2022-07-21 12:18:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add_rcu [2022-07-21 12:18:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_register_user_memory [2022-07-21 12:18:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_register_user_memory [2022-07-21 12:18:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-21 12:18:01,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-21 12:18:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_guest_work [2022-07-21 12:18:01,901 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_guest_work [2022-07-21 12:18:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure drv_cp_harray_to_user [2022-07-21 12:18:01,901 INFO L138 BoogieDeclarations]: Found implementation of procedure drv_cp_harray_to_user [2022-07-21 12:18:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 12:18:01,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 12:18:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-21 12:18:01,901 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-21 12:18:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_remove_tail [2022-07-21 12:18:01,901 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_remove_tail [2022-07-21 12:18:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_subscriber_mutex [2022-07-21 12:18:01,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_subscriber_mutex [2022-07-21 12:18:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-21 12:18:01,901 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-21 12:18:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_supports_host_qp [2022-07-21 12:18:01,901 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_supports_host_qp [2022-07-21 12:18:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 12:18:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 12:18:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 12:18:01,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 12:18:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_broker_detach [2022-07-21 12:18:01,902 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_broker_detach [2022-07-21 12:18:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_enqueue_datagram [2022-07-21 12:18:01,902 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_enqueue_datagram [2022-07-21 12:18:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-07-21 12:18:01,902 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-07-21 12:18:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_unmap_queues [2022-07-21 12:18:01,902 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_unmap_queues [2022-07-21 12:18:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_rcu [2022-07-21 12:18:01,902 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_rcu [2022-07-21 12:18:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_qp_list [2022-07-21 12:18:01,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_qp_list [2022-07-21 12:18:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 12:18:01,902 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 12:18:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 12:18:01,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 12:18:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-21 12:18:01,902 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-21 12:18:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 12:18:01,903 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 12:18:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-07-21 12:18:01,903 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-07-21 12:18:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 12:18:01,903 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 12:18:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2022-07-21 12:18:01,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2022-07-21 12:18:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_vmci_queue_kern_if [2022-07-21 12:18:01,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_vmci_queue_kern_if [2022-07-21 12:18:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_notify_dbell [2022-07-21 12:18:01,927 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_notify_dbell [2022-07-21 12:18:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_append_entry [2022-07-21 12:18:01,927 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_append_entry [2022-07-21 12:18:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-07-21 12:18:01,928 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-07-21 12:18:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-21 12:18:01,928 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-21 12:18:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure qp_broker_handle_to_entry [2022-07-21 12:18:01,928 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_broker_handle_to_entry [2022-07-21 12:18:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qpair_detach [2022-07-21 12:18:01,928 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qpair_detach [2022-07-21 12:18:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-21 12:18:01,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-21 12:18:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 12:18:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 12:18:01,928 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 12:18:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_hash [2022-07-21 12:18:01,928 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_hash [2022-07-21 12:18:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_create [2022-07-21 12:18:01,928 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_create [2022-07-21 12:18:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure event_find [2022-07-21 12:18:01,928 INFO L138 BoogieDeclarations]: Found implementation of procedure event_find [2022-07-21 12:18:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure qp_broker_alloc [2022-07-21 12:18:01,928 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_broker_alloc [2022-07-21 12:18:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 12:18:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch_host_work [2022-07-21 12:18:01,929 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch_host_work [2022-07-21 12:18:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-07-21 12:18:01,929 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-07-21 12:18:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure hash_32 [2022-07-21 12:18:01,929 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_32 [2022-07-21 12:18:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail_rcu [2022-07-21 12:18:01,929 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail_rcu [2022-07-21 12:18:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock___1 [2022-07-21 12:18:01,929 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock___1 [2022-07-21 12:18:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure qp_guest_endpoint_destroy [2022-07-21 12:18:01,929 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_guest_endpoint_destroy [2022-07-21 12:18:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 12:18:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure dg_dispatch_as_guest [2022-07-21 12:18:01,929 INFO L138 BoogieDeclarations]: Found implementation of procedure dg_dispatch_as_guest [2022-07-21 12:18:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-21 12:18:01,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-21 12:18:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 12:18:01,929 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 12:18:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-21 12:18:01,929 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-21 12:18:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_dispatch [2022-07-21 12:18:01,929 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_dispatch [2022-07-21 12:18:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure qp_release_queue_mutex [2022-07-21 12:18:01,930 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_release_queue_mutex [2022-07-21 12:18:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-21 12:18:01,930 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-21 12:18:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_route [2022-07-21 12:18:01,930 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_route [2022-07-21 12:18:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure get_user_pages_fast [2022-07-21 12:18:01,930 INFO L138 BoogieDeclarations]: Found implementation of procedure get_user_pages_fast [2022-07-21 12:18:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure qp_free_queue [2022-07-21 12:18:01,930 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_free_queue [2022-07-21 12:18:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure qp_host_free_queue [2022-07-21 12:18:01,930 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_host_free_queue [2022-07-21 12:18:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-21 12:18:01,930 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-21 12:18:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_set [2022-07-21 12:18:01,930 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_set [2022-07-21 12:18:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_datagram_get_priv_flags [2022-07-21 12:18:01,930 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_datagram_get_priv_flags [2022-07-21 12:18:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_exists [2022-07-21 12:18:01,930 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_exists [2022-07-21 12:18:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2022-07-21 12:18:01,930 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2022-07-21 12:18:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_remove [2022-07-21 12:18:01,931 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_remove [2022-07-21 12:18:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 12:18:01,931 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 12:18:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure qp_init_queue_mutex [2022-07-21 12:18:01,931 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_init_queue_mutex [2022-07-21 12:18:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 12:18:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_context_get_priv_flags [2022-07-21 12:18:01,931 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_context_get_priv_flags [2022-07-21 12:18:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2022-07-21 12:18:01,931 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2022-07-21 12:18:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-21 12:18:01,931 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-21 12:18:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 12:18:01,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 12:18:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure put_cred [2022-07-21 12:18:01,931 INFO L138 BoogieDeclarations]: Found implementation of procedure put_cred [2022-07-21 12:18:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work___0 [2022-07-21 12:18:01,931 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work___0 [2022-07-21 12:18:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-07-21 12:18:01,931 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-07-21 12:18:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-21 12:18:01,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-21 12:18:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_guest_endpoints_exit [2022-07-21 12:18:01,932 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_guest_endpoints_exit [2022-07-21 12:18:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_HLIST_NODE [2022-07-21 12:18:01,932 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_HLIST_NODE [2022-07-21 12:18:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-21 12:18:01,932 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-21 12:18:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-21 12:18:01,932 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-21 12:18:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_is_equal [2022-07-21 12:18:01,932 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_is_equal [2022-07-21 12:18:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_destroy [2022-07-21 12:18:01,932 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_destroy [2022-07-21 12:18:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure qp_guest_handle_to_entry [2022-07-21 12:18:01,932 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_guest_handle_to_entry [2022-07-21 12:18:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-21 12:18:01,932 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-21 12:18:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure qp_detatch [2022-07-21 12:18:01,932 INFO L138 BoogieDeclarations]: Found implementation of procedure qp_detatch [2022-07-21 12:18:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure handle_arr_calc_size [2022-07-21 12:18:01,932 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_arr_calc_size [2022-07-21 12:18:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2022-07-21 12:18:01,932 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2022-07-21 12:18:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_unhashed [2022-07-21 12:18:01,933 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_unhashed [2022-07-21 12:18:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_qp_broker_alloc [2022-07-21 12:18:01,933 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_qp_broker_alloc [2022-07-21 12:18:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-21 12:18:01,933 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-21 12:18:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2022-07-21 12:18:01,933 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2022-07-21 12:18:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-21 12:18:01,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-21 12:18:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-21 12:18:01,933 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-21 12:18:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2022-07-21 12:18:01,933 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2022-07-21 12:18:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_get [2022-07-21 12:18:01,933 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_get [2022-07-21 12:18:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_vmci_host_dev [2022-07-21 12:18:01,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_vmci_host_dev [2022-07-21 12:18:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-21 12:18:01,933 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-21 12:18:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-07-21 12:18:01,934 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-07-21 12:18:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_handle_arr_remove_entry [2022-07-21 12:18:01,934 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_handle_arr_remove_entry [2022-07-21 12:18:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_event_unsubscribe [2022-07-21 12:18:01,934 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_event_unsubscribe [2022-07-21 12:18:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_deny_interaction [2022-07-21 12:18:01,934 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_deny_interaction [2022-07-21 12:18:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_guest_remove_device [2022-07-21 12:18:01,934 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_guest_remove_device [2022-07-21 12:18:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_qp_create [2022-07-21 12:18:01,934 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_qp_create [2022-07-21 12:18:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_host_code_active [2022-07-21 12:18:01,934 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_host_code_active [2022-07-21 12:18:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 12:18:01,934 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 12:18:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 12:18:01,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 12:18:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-07-21 12:18:01,934 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-07-21 12:18:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-21 12:18:01,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-21 12:18:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_lookup [2022-07-21 12:18:01,935 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_lookup [2022-07-21 12:18:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-07-21 12:18:01,935 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-07-21 12:18:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 12:18:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_ctx_create [2022-07-21 12:18:01,935 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_ctx_create [2022-07-21 12:18:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure vmci_resource_put [2022-07-21 12:18:01,935 INFO L138 BoogieDeclarations]: Found implementation of procedure vmci_resource_put [2022-07-21 12:18:02,897 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 12:18:02,900 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 12:18:03,146 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 12:18:19,831 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 12:18:19,853 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 12:18:19,854 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 12:18:19,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:18:19 BoogieIcfgContainer [2022-07-21 12:18:19,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 12:18:19,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 12:18:19,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 12:18:19,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 12:18:19,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:17:56" (1/3) ... [2022-07-21 12:18:19,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9ccb88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:18:19, skipping insertion in model container [2022-07-21 12:18:19,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:18:00" (2/3) ... [2022-07-21 12:18:19,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9ccb88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:18:19, skipping insertion in model container [2022-07-21 12:18:19,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:18:19" (3/3) ... [2022-07-21 12:18:19,864 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 [2022-07-21 12:18:19,880 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 12:18:19,880 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 12:18:19,967 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 12:18:19,973 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@2d1d1cf7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7d21c81e [2022-07-21 12:18:19,973 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 12:18:19,985 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) [2022-07-21 12:18:19,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-21 12:18:19,995 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:18:19,996 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] [2022-07-21 12:18:19,996 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:18:20,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:18:20,000 INFO L85 PathProgramCache]: Analyzing trace with hash 289228627, now seen corresponding path program 1 times [2022-07-21 12:18:20,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:18:20,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265656852] [2022-07-21 12:18:20,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:20,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:18:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:20,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:18:20,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:18:20,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265656852] [2022-07-21 12:18:20,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265656852] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:18:20,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:18:20,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 12:18:20,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39739733] [2022-07-21 12:18:20,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:18:20,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:18:20,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:18:20,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:18:20,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 12:18:20,643 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) [2022-07-21 12:18:20,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:18:20,947 INFO L93 Difference]: Finished difference Result 6773 states and 9961 transitions. [2022-07-21 12:18:20,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:18:20,949 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 [2022-07-21 12:18:20,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:18:20,986 INFO L225 Difference]: With dead ends: 6773 [2022-07-21 12:18:20,987 INFO L226 Difference]: Without dead ends: 3381 [2022-07-21 12:18:21,010 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 [2022-07-21 12:18:21,013 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 [2022-07-21 12:18:21,013 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] [2022-07-21 12:18:21,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3381 states. [2022-07-21 12:18:21,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3381 to 3379. [2022-07-21 12:18:21,197 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) [2022-07-21 12:18:21,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3379 states to 3379 states and 4855 transitions. [2022-07-21 12:18:21,221 INFO L78 Accepts]: Start accepts. Automaton has 3379 states and 4855 transitions. Word has length 27 [2022-07-21 12:18:21,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:18:21,225 INFO L495 AbstractCegarLoop]: Abstraction has 3379 states and 4855 transitions. [2022-07-21 12:18:21,225 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) [2022-07-21 12:18:21,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3379 states and 4855 transitions. [2022-07-21 12:18:21,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-21 12:18:21,231 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:18:21,231 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] [2022-07-21 12:18:21,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 12:18:21,232 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:18:21,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:18:21,233 INFO L85 PathProgramCache]: Analyzing trace with hash -720615107, now seen corresponding path program 1 times [2022-07-21 12:18:21,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:18:21,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364272029] [2022-07-21 12:18:21,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:21,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:18:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:21,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:18:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:21,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:18:21,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:18:21,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364272029] [2022-07-21 12:18:21,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364272029] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:18:21,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:18:21,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 12:18:21,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134720385] [2022-07-21 12:18:21,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:18:21,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 12:18:21,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:18:21,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 12:18:21,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 12:18:21,669 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) [2022-07-21 12:18:26,885 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 [] [2022-07-21 12:18:31,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:18:31,590 INFO L93 Difference]: Finished difference Result 10280 states and 14861 transitions. [2022-07-21 12:18:31,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 12:18:31,591 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 [2022-07-21 12:18:31,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:18:31,630 INFO L225 Difference]: With dead ends: 10280 [2022-07-21 12:18:31,631 INFO L226 Difference]: Without dead ends: 6907 [2022-07-21 12:18:31,646 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 [2022-07-21 12:18:31,646 INFO L413 NwaCegarLoop]: 7945 mSDtfsCounter, 5344 mSDsluCounter, 7151 mSDsCounter, 0 mSdLazyCounter, 3353 mSolverCounterSat, 1677 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5931 SdHoareTripleChecker+Valid, 15096 SdHoareTripleChecker+Invalid, 5031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1677 IncrementalHoareTripleChecker+Valid, 3353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-07-21 12:18:31,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5931 Valid, 15096 Invalid, 5031 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1677 Valid, 3353 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2022-07-21 12:18:31,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6907 states. [2022-07-21 12:18:31,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6907 to 6653. [2022-07-21 12:18:31,860 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) [2022-07-21 12:18:31,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6653 states to 6653 states and 9560 transitions. [2022-07-21 12:18:31,884 INFO L78 Accepts]: Start accepts. Automaton has 6653 states and 9560 transitions. Word has length 29 [2022-07-21 12:18:31,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:18:31,884 INFO L495 AbstractCegarLoop]: Abstraction has 6653 states and 9560 transitions. [2022-07-21 12:18:31,885 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) [2022-07-21 12:18:31,885 INFO L276 IsEmpty]: Start isEmpty. Operand 6653 states and 9560 transitions. [2022-07-21 12:18:31,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-21 12:18:31,886 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:18:31,886 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] [2022-07-21 12:18:31,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 12:18:31,886 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:18:31,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:18:31,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1258315447, now seen corresponding path program 1 times [2022-07-21 12:18:31,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:18:31,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761139670] [2022-07-21 12:18:31,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:31,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:18:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:32,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:18:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:32,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:18:32,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:18:32,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761139670] [2022-07-21 12:18:32,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761139670] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 12:18:32,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402550785] [2022-07-21 12:18:32,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:32,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 12:18:32,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:18:32,193 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) [2022-07-21 12:18:32,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 12:18:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:33,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 4888 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 12:18:33,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:18:33,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 12:18:33,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:18:33,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402550785] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:18:33,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 12:18:33,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-21 12:18:33,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345979833] [2022-07-21 12:18:33,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:18:33,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:18:33,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:18:33,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:18:33,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:18:33,599 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) [2022-07-21 12:18:33,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:18:33,693 INFO L93 Difference]: Finished difference Result 6655 states and 9561 transitions. [2022-07-21 12:18:33,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:18:33,694 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 [2022-07-21 12:18:33,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:18:33,726 INFO L225 Difference]: With dead ends: 6655 [2022-07-21 12:18:33,726 INFO L226 Difference]: Without dead ends: 6652 [2022-07-21 12:18:33,731 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 [2022-07-21 12:18:33,735 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 [2022-07-21 12:18:33,736 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] [2022-07-21 12:18:33,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6652 states. [2022-07-21 12:18:33,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6652 to 6652. [2022-07-21 12:18:33,930 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) [2022-07-21 12:18:33,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6652 states to 6652 states and 9558 transitions. [2022-07-21 12:18:33,954 INFO L78 Accepts]: Start accepts. Automaton has 6652 states and 9558 transitions. Word has length 33 [2022-07-21 12:18:33,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:18:33,955 INFO L495 AbstractCegarLoop]: Abstraction has 6652 states and 9558 transitions. [2022-07-21 12:18:33,955 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) [2022-07-21 12:18:33,955 INFO L276 IsEmpty]: Start isEmpty. Operand 6652 states and 9558 transitions. [2022-07-21 12:18:33,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-21 12:18:33,957 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:18:33,957 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] [2022-07-21 12:18:33,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 12:18:34,183 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 [2022-07-21 12:18:34,183 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:18:34,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:18:34,184 INFO L85 PathProgramCache]: Analyzing trace with hash 351711725, now seen corresponding path program 1 times [2022-07-21 12:18:34,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:18:34,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886137080] [2022-07-21 12:18:34,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:34,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:18:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:34,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:18:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:34,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:18:34,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:18:34,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886137080] [2022-07-21 12:18:34,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886137080] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 12:18:34,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446660168] [2022-07-21 12:18:34,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:34,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 12:18:34,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:18:34,390 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) [2022-07-21 12:18:34,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 12:18:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:35,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 4890 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 12:18:35,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:18:35,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 12:18:35,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:18:35,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446660168] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:18:35,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 12:18:35,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-21 12:18:35,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605754569] [2022-07-21 12:18:35,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:18:35,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:18:35,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:18:35,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:18:35,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:18:35,714 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) [2022-07-21 12:18:35,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:18:35,810 INFO L93 Difference]: Finished difference Result 6654 states and 9559 transitions. [2022-07-21 12:18:35,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:18:35,811 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 [2022-07-21 12:18:35,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:18:35,842 INFO L225 Difference]: With dead ends: 6654 [2022-07-21 12:18:35,842 INFO L226 Difference]: Without dead ends: 6651 [2022-07-21 12:18:35,847 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 [2022-07-21 12:18:35,849 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 [2022-07-21 12:18:35,850 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] [2022-07-21 12:18:35,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6651 states. [2022-07-21 12:18:36,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6651 to 6651. [2022-07-21 12:18:36,113 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) [2022-07-21 12:18:36,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6651 states to 6651 states and 9556 transitions. [2022-07-21 12:18:36,136 INFO L78 Accepts]: Start accepts. Automaton has 6651 states and 9556 transitions. Word has length 34 [2022-07-21 12:18:36,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:18:36,136 INFO L495 AbstractCegarLoop]: Abstraction has 6651 states and 9556 transitions. [2022-07-21 12:18:36,136 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) [2022-07-21 12:18:36,137 INFO L276 IsEmpty]: Start isEmpty. Operand 6651 states and 9556 transitions. [2022-07-21 12:18:36,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-21 12:18:36,140 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:18:36,140 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] [2022-07-21 12:18:36,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 12:18:36,361 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 [2022-07-21 12:18:36,361 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:18:36,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:18:36,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1983195014, now seen corresponding path program 1 times [2022-07-21 12:18:36,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:18:36,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53219542] [2022-07-21 12:18:36,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:36,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:18:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:36,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:18:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:36,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:18:36,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:18:36,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53219542] [2022-07-21 12:18:36,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53219542] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 12:18:36,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286513750] [2022-07-21 12:18:36,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:36,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 12:18:36,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:18:36,585 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) [2022-07-21 12:18:36,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 12:18:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:37,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 4892 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 12:18:37,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:18:37,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 12:18:37,771 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:18:37,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286513750] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:18:37,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 12:18:37,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-21 12:18:37,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671687963] [2022-07-21 12:18:37,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:18:37,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:18:37,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:18:37,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:18:37,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:18:37,773 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) [2022-07-21 12:18:37,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:18:37,914 INFO L93 Difference]: Finished difference Result 10476 states and 14764 transitions. [2022-07-21 12:18:37,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:18:37,915 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 [2022-07-21 12:18:37,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:18:37,968 INFO L225 Difference]: With dead ends: 10476 [2022-07-21 12:18:37,968 INFO L226 Difference]: Without dead ends: 10472 [2022-07-21 12:18:37,975 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 [2022-07-21 12:18:37,976 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 [2022-07-21 12:18:37,976 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] [2022-07-21 12:18:37,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10472 states. [2022-07-21 12:18:38,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10472 to 10464. [2022-07-21 12:18:38,302 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) [2022-07-21 12:18:38,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10464 states to 10464 states and 14751 transitions. [2022-07-21 12:18:38,333 INFO L78 Accepts]: Start accepts. Automaton has 10464 states and 14751 transitions. Word has length 35 [2022-07-21 12:18:38,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:18:38,334 INFO L495 AbstractCegarLoop]: Abstraction has 10464 states and 14751 transitions. [2022-07-21 12:18:38,335 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) [2022-07-21 12:18:38,335 INFO L276 IsEmpty]: Start isEmpty. Operand 10464 states and 14751 transitions. [2022-07-21 12:18:38,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-21 12:18:38,335 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:18:38,335 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] [2022-07-21 12:18:38,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 12:18:38,561 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 [2022-07-21 12:18:38,561 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:18:38,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:18:38,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1350855024, now seen corresponding path program 1 times [2022-07-21 12:18:38,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:18:38,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629133888] [2022-07-21 12:18:38,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:38,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:18:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:38,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:18:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:38,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:18:38,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:18:38,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629133888] [2022-07-21 12:18:38,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629133888] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 12:18:38,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476088108] [2022-07-21 12:18:38,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:38,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 12:18:38,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:18:38,751 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) [2022-07-21 12:18:38,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 12:18:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 4894 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 12:18:39,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:18:40,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 12:18:40,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:18:40,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476088108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:18:40,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 12:18:40,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-21 12:18:40,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147058335] [2022-07-21 12:18:40,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:18:40,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:18:40,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:18:40,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:18:40,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:18:40,001 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) [2022-07-21 12:18:40,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:18:40,148 INFO L93 Difference]: Finished difference Result 10466 states and 14752 transitions. [2022-07-21 12:18:40,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:18:40,148 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 [2022-07-21 12:18:40,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:18:40,184 INFO L225 Difference]: With dead ends: 10466 [2022-07-21 12:18:40,184 INFO L226 Difference]: Without dead ends: 10463 [2022-07-21 12:18:40,191 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 [2022-07-21 12:18:40,192 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 [2022-07-21 12:18:40,192 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] [2022-07-21 12:18:40,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10463 states. [2022-07-21 12:18:40,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10463 to 10463. [2022-07-21 12:18:40,533 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) [2022-07-21 12:18:40,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10463 states to 10463 states and 14749 transitions. [2022-07-21 12:18:40,568 INFO L78 Accepts]: Start accepts. Automaton has 10463 states and 14749 transitions. Word has length 36 [2022-07-21 12:18:40,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:18:40,568 INFO L495 AbstractCegarLoop]: Abstraction has 10463 states and 14749 transitions. [2022-07-21 12:18:40,569 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) [2022-07-21 12:18:40,569 INFO L276 IsEmpty]: Start isEmpty. Operand 10463 states and 14749 transitions. [2022-07-21 12:18:40,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-21 12:18:40,570 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:18:40,570 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] [2022-07-21 12:18:40,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 12:18:40,785 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 [2022-07-21 12:18:40,785 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:18:40,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:18:40,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1071820349, now seen corresponding path program 1 times [2022-07-21 12:18:40,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:18:40,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991950951] [2022-07-21 12:18:40,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:40,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:18:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:40,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:18:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:40,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:18:40,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:18:40,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991950951] [2022-07-21 12:18:40,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991950951] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 12:18:40,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035926073] [2022-07-21 12:18:40,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:40,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 12:18:40,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:18:41,000 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) [2022-07-21 12:18:41,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 12:18:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:42,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 4896 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 12:18:42,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:18:42,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 12:18:42,268 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:18:42,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035926073] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:18:42,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 12:18:42,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-21 12:18:42,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763139412] [2022-07-21 12:18:42,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:18:42,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:18:42,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:18:42,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:18:42,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:18:42,269 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) [2022-07-21 12:18:42,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:18:42,562 INFO L93 Difference]: Finished difference Result 27378 states and 38939 transitions. [2022-07-21 12:18:42,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:18:42,563 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 [2022-07-21 12:18:42,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:18:42,626 INFO L225 Difference]: With dead ends: 27378 [2022-07-21 12:18:42,627 INFO L226 Difference]: Without dead ends: 16921 [2022-07-21 12:18:42,670 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 [2022-07-21 12:18:42,671 INFO L413 NwaCegarLoop]: 5610 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, 8635 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 [2022-07-21 12:18:42,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4104 Valid, 8635 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 12:18:42,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16921 states. [2022-07-21 12:18:43,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16921 to 16878. [2022-07-21 12:18:43,164 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) [2022-07-21 12:18:43,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16878 states to 16878 states and 23683 transitions. [2022-07-21 12:18:43,221 INFO L78 Accepts]: Start accepts. Automaton has 16878 states and 23683 transitions. Word has length 37 [2022-07-21 12:18:43,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:18:43,221 INFO L495 AbstractCegarLoop]: Abstraction has 16878 states and 23683 transitions. [2022-07-21 12:18:43,221 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) [2022-07-21 12:18:43,222 INFO L276 IsEmpty]: Start isEmpty. Operand 16878 states and 23683 transitions. [2022-07-21 12:18:43,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-21 12:18:43,223 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:18:43,223 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] [2022-07-21 12:18:43,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 12:18:43,440 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 [2022-07-21 12:18:43,441 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:18:43,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:18:43,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1134649549, now seen corresponding path program 1 times [2022-07-21 12:18:43,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:18:43,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864739856] [2022-07-21 12:18:43,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:43,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:18:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:43,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:18:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:43,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:18:43,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:18:43,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864739856] [2022-07-21 12:18:43,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864739856] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 12:18:43,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512912911] [2022-07-21 12:18:43,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:43,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 12:18:43,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:18:43,646 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) [2022-07-21 12:18:43,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-21 12:18:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:44,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 4898 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 12:18:44,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:18:45,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 12:18:45,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:18:45,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512912911] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:18:45,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 12:18:45,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-21 12:18:45,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039929563] [2022-07-21 12:18:45,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:18:45,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:18:45,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:18:45,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:18:45,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:18:45,222 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) [2022-07-21 12:18:46,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:18:46,177 INFO L93 Difference]: Finished difference Result 50578 states and 72747 transitions. [2022-07-21 12:18:46,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:18:46,178 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 [2022-07-21 12:18:46,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:18:46,358 INFO L225 Difference]: With dead ends: 50578 [2022-07-21 12:18:46,359 INFO L226 Difference]: Without dead ends: 33706 [2022-07-21 12:18:46,449 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 [2022-07-21 12:18:46,450 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 [2022-07-21 12:18:46,450 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] [2022-07-21 12:18:46,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33706 states. [2022-07-21 12:18:48,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33706 to 33667. [2022-07-21 12:18:48,507 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) [2022-07-21 12:18:48,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33667 states to 33667 states and 48151 transitions. [2022-07-21 12:18:48,893 INFO L78 Accepts]: Start accepts. Automaton has 33667 states and 48151 transitions. Word has length 38 [2022-07-21 12:18:48,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:18:48,899 INFO L495 AbstractCegarLoop]: Abstraction has 33667 states and 48151 transitions. [2022-07-21 12:18:48,899 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) [2022-07-21 12:18:48,899 INFO L276 IsEmpty]: Start isEmpty. Operand 33667 states and 48151 transitions. [2022-07-21 12:18:48,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-21 12:18:48,900 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:18:48,900 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] [2022-07-21 12:18:48,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-21 12:18:49,116 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 [2022-07-21 12:18:49,116 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:18:49,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:18:49,116 INFO L85 PathProgramCache]: Analyzing trace with hash -815734784, now seen corresponding path program 1 times [2022-07-21 12:18:49,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:18:49,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543672863] [2022-07-21 12:18:49,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:49,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:18:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:49,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:18:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:49,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:18:49,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:18:49,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543672863] [2022-07-21 12:18:49,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543672863] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 12:18:49,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980055193] [2022-07-21 12:18:49,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:49,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 12:18:49,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:18:49,364 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) [2022-07-21 12:18:49,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-21 12:18:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:50,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 4900 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 12:18:50,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:18:51,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 12:18:51,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:18:51,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980055193] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:18:51,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 12:18:51,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-21 12:18:51,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830527204] [2022-07-21 12:18:51,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:18:51,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:18:51,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:18:51,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:18:51,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:18:51,037 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) [2022-07-21 12:18:51,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:18:51,707 INFO L93 Difference]: Finished difference Result 33795 states and 48241 transitions. [2022-07-21 12:18:51,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:18:51,708 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 [2022-07-21 12:18:51,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:18:51,889 INFO L225 Difference]: With dead ends: 33795 [2022-07-21 12:18:51,890 INFO L226 Difference]: Without dead ends: 33763 [2022-07-21 12:18:51,916 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 [2022-07-21 12:18:51,916 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 [2022-07-21 12:18:51,988 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] [2022-07-21 12:18:52,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33763 states. [2022-07-21 12:18:52,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33763 to 33761. [2022-07-21 12:18:52,892 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) [2022-07-21 12:18:53,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33761 states to 33761 states and 48182 transitions. [2022-07-21 12:18:53,030 INFO L78 Accepts]: Start accepts. Automaton has 33761 states and 48182 transitions. Word has length 39 [2022-07-21 12:18:53,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:18:53,030 INFO L495 AbstractCegarLoop]: Abstraction has 33761 states and 48182 transitions. [2022-07-21 12:18:53,031 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) [2022-07-21 12:18:53,031 INFO L276 IsEmpty]: Start isEmpty. Operand 33761 states and 48182 transitions. [2022-07-21 12:18:53,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-21 12:18:53,033 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:18:53,033 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] [2022-07-21 12:18:53,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-21 12:18:53,247 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 [2022-07-21 12:18:53,247 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:18:53,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:18:53,248 INFO L85 PathProgramCache]: Analyzing trace with hash 775182156, now seen corresponding path program 1 times [2022-07-21 12:18:53,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:18:53,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413889681] [2022-07-21 12:18:53,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:53,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:18:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:53,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 12:18:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:53,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:53,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:53,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 12:18:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:53,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 12:18:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:53,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:18:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:53,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:18:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:53,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 12:18:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:53,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 12:18:53,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:18:53,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413889681] [2022-07-21 12:18:53,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413889681] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:18:53,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:18:53,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:18:53,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952236179] [2022-07-21 12:18:53,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:18:53,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:18:53,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:18:53,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:18:53,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:18:53,681 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) [2022-07-21 12:18:58,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:15,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:17,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:20,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:23,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:28,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:31,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:33,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:38,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:19:38,634 INFO L93 Difference]: Finished difference Result 114039 states and 167242 transitions. [2022-07-21 12:19:38,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 12:19:38,635 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 [2022-07-21 12:19:38,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:19:39,693 INFO L225 Difference]: With dead ends: 114039 [2022-07-21 12:19:39,693 INFO L226 Difference]: Without dead ends: 80284 [2022-07-21 12:19:39,991 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 [2022-07-21 12:19:40,015 INFO L413 NwaCegarLoop]: 4713 mSDtfsCounter, 11882 mSDsluCounter, 5953 mSDsCounter, 0 mSdLazyCounter, 11453 mSolverCounterSat, 7532 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12622 SdHoareTripleChecker+Valid, 10666 SdHoareTripleChecker+Invalid, 18991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7532 IncrementalHoareTripleChecker+Valid, 11453 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.2s IncrementalHoareTripleChecker+Time [2022-07-21 12:19:40,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12622 Valid, 10666 Invalid, 18991 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7532 Valid, 11453 Invalid, 6 Unknown, 0 Unchecked, 42.2s Time] [2022-07-21 12:19:40,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80284 states. [2022-07-21 12:19:43,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80284 to 72962. [2022-07-21 12:19:43,972 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) [2022-07-21 12:19:44,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72962 states to 72962 states and 105183 transitions. [2022-07-21 12:19:44,987 INFO L78 Accepts]: Start accepts. Automaton has 72962 states and 105183 transitions. Word has length 70 [2022-07-21 12:19:44,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:19:44,987 INFO L495 AbstractCegarLoop]: Abstraction has 72962 states and 105183 transitions. [2022-07-21 12:19:44,988 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) [2022-07-21 12:19:44,988 INFO L276 IsEmpty]: Start isEmpty. Operand 72962 states and 105183 transitions. [2022-07-21 12:19:45,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 12:19:45,005 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:19:45,005 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] [2022-07-21 12:19:45,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 12:19:45,013 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:19:45,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:19:45,014 INFO L85 PathProgramCache]: Analyzing trace with hash 130058374, now seen corresponding path program 1 times [2022-07-21 12:19:45,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:19:45,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324025965] [2022-07-21 12:19:45,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:19:45,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:19:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 12:19:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:19:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 12:19:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 12:19:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 12:19:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 12:19:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 12:19:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 12:19:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 12:19:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 12:19:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 12:19:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:45,655 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-21 12:19:45,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:19:45,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324025965] [2022-07-21 12:19:45,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324025965] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:19:45,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:19:45,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 12:19:45,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951283757] [2022-07-21 12:19:45,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:19:45,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 12:19:45,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:19:45,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 12:19:45,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 12:19:45,658 INFO L87 Difference]: Start difference. First operand 72962 states and 105183 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 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) [2022-07-21 12:19:51,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:09,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:11,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:13,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:17,112 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 [] [2022-07-21 12:20:22,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:20:22,000 INFO L93 Difference]: Finished difference Result 178532 states and 260995 transitions. [2022-07-21 12:20:22,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 12:20:22,001 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 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 116 [2022-07-21 12:20:22,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:20:22,817 INFO L225 Difference]: With dead ends: 178532 [2022-07-21 12:20:22,818 INFO L226 Difference]: Without dead ends: 105576 [2022-07-21 12:20:23,038 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 [2022-07-21 12:20:23,039 INFO L413 NwaCegarLoop]: 3945 mSDtfsCounter, 11023 mSDsluCounter, 2573 mSDsCounter, 0 mSdLazyCounter, 11498 mSolverCounterSat, 7302 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11710 SdHoareTripleChecker+Valid, 6518 SdHoareTripleChecker+Invalid, 18805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7302 IncrementalHoareTripleChecker+Valid, 11498 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2022-07-21 12:20:23,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11710 Valid, 6518 Invalid, 18805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7302 Valid, 11498 Invalid, 5 Unknown, 0 Unchecked, 32.3s Time] [2022-07-21 12:20:23,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105576 states. [2022-07-21 12:20:27,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105576 to 95870. [2022-07-21 12:20:27,530 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) [2022-07-21 12:20:28,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95870 states to 95870 states and 137534 transitions. [2022-07-21 12:20:28,063 INFO L78 Accepts]: Start accepts. Automaton has 95870 states and 137534 transitions. Word has length 116 [2022-07-21 12:20:28,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:20:28,064 INFO L495 AbstractCegarLoop]: Abstraction has 95870 states and 137534 transitions. [2022-07-21 12:20:28,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 3 states have internal predecessors, (61), 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) [2022-07-21 12:20:28,064 INFO L276 IsEmpty]: Start isEmpty. Operand 95870 states and 137534 transitions. [2022-07-21 12:20:28,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-21 12:20:28,071 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:20:28,072 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] [2022-07-21 12:20:28,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 12:20:28,072 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:20:28,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:20:28,076 INFO L85 PathProgramCache]: Analyzing trace with hash -156120456, now seen corresponding path program 1 times [2022-07-21 12:20:28,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:20:28,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655949231] [2022-07-21 12:20:28,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:20:28,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:20:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:20:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 12:20:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:20:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 12:20:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:20:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 12:20:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 12:20:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 12:20:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 12:20:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 12:20:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,308 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-21 12:20:29,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:20:29,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655949231] [2022-07-21 12:20:29,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655949231] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 12:20:29,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160967157] [2022-07-21 12:20:29,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:20:29,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 12:20:29,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:20:29,327 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) [2022-07-21 12:20:29,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-21 12:20:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:30,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 5716 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 12:20:30,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:20:30,753 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 12:20:30,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 12:20:30,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160967157] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:20:30,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 12:20:30,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-21 12:20:30,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775564735] [2022-07-21 12:20:30,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:20:30,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 12:20:30,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:20:30,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 12:20:30,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:20:30,755 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) [2022-07-21 12:20:36,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:20:36,485 INFO L93 Difference]: Finished difference Result 236948 states and 339851 transitions. [2022-07-21 12:20:36,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 12:20:36,486 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 [2022-07-21 12:20:36,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:20:37,215 INFO L225 Difference]: With dead ends: 236948 [2022-07-21 12:20:37,216 INFO L226 Difference]: Without dead ends: 141084 [2022-07-21 12:20:37,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:20:37,513 INFO L413 NwaCegarLoop]: 6106 mSDtfsCounter, 4791 mSDsluCounter, 4798 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 12:20:37,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4791 Valid, 10904 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 12:20:37,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141084 states. [2022-07-21 12:20:43,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141084 to 141035. [2022-07-21 12:20:43,705 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) [2022-07-21 12:20:45,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141035 states to 141035 states and 202257 transitions. [2022-07-21 12:20:45,199 INFO L78 Accepts]: Start accepts. Automaton has 141035 states and 202257 transitions. Word has length 118 [2022-07-21 12:20:45,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:20:45,199 INFO L495 AbstractCegarLoop]: Abstraction has 141035 states and 202257 transitions. [2022-07-21 12:20:45,199 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) [2022-07-21 12:20:45,200 INFO L276 IsEmpty]: Start isEmpty. Operand 141035 states and 202257 transitions. [2022-07-21 12:20:45,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-21 12:20:45,229 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:20:45,229 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] [2022-07-21 12:20:45,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-21 12:20:45,447 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 [2022-07-21 12:20:45,447 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:20:45,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:20:45,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1927376758, now seen corresponding path program 1 times [2022-07-21 12:20:45,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:20:45,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141099357] [2022-07-21 12:20:45,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:20:45,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:20:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:45,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:20:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:45,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 12:20:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:45,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:45,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:20:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:45,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 12:20:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:45,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 12:20:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:45,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 12:20:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:45,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:45,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:45,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:45,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 12:20:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:45,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 12:20:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:45,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 12:20:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:45,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 12:20:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:45,915 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 12:20:45,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:20:45,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141099357] [2022-07-21 12:20:45,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141099357] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 12:20:45,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669315443] [2022-07-21 12:20:45,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:20:45,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 12:20:45,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:20:45,917 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) [2022-07-21 12:20:45,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-21 12:20:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:47,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 5942 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 12:20:47,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 12:20:47,429 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 12:20:47,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 12:20:47,611 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 12:20:47,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669315443] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 12:20:47,612 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 12:20:47,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2022-07-21 12:20:47,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714239089] [2022-07-21 12:20:47,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 12:20:47,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 12:20:47,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:20:47,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 12:20:47,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-21 12:20:47,614 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) [2022-07-21 12:20:52,098 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 [] [2022-07-21 12:21:02,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:21:12,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:21:14,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:21:17,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:21:20,101 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 [] [2022-07-21 12:21:30,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:21:30,345 INFO L93 Difference]: Finished difference Result 297306 states and 432532 transitions. [2022-07-21 12:21:30,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 12:21:30,346 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 [2022-07-21 12:21:30,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:21:31,476 INFO L225 Difference]: With dead ends: 297306 [2022-07-21 12:21:31,476 INFO L226 Difference]: Without dead ends: 156277 [2022-07-21 12:21:31,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-07-21 12:21:31,914 INFO L413 NwaCegarLoop]: 4127 mSDtfsCounter, 3276 mSDsluCounter, 5539 mSDsCounter, 0 mSdLazyCounter, 8820 mSolverCounterSat, 1693 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3790 SdHoareTripleChecker+Valid, 9666 SdHoareTripleChecker+Invalid, 10518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1693 IncrementalHoareTripleChecker+Valid, 8820 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.7s IncrementalHoareTripleChecker+Time [2022-07-21 12:21:31,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3790 Valid, 9666 Invalid, 10518 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1693 Valid, 8820 Invalid, 5 Unknown, 0 Unchecked, 33.7s Time] [2022-07-21 12:21:32,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156277 states. [2022-07-21 12:21:39,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156277 to 141559. [2022-07-21 12:21:39,732 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) [2022-07-21 12:21:40,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141559 states to 141559 states and 202893 transitions. [2022-07-21 12:21:40,882 INFO L78 Accepts]: Start accepts. Automaton has 141559 states and 202893 transitions. Word has length 122 [2022-07-21 12:21:40,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:21:40,882 INFO L495 AbstractCegarLoop]: Abstraction has 141559 states and 202893 transitions. [2022-07-21 12:21:40,882 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) [2022-07-21 12:21:40,882 INFO L276 IsEmpty]: Start isEmpty. Operand 141559 states and 202893 transitions. [2022-07-21 12:21:40,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-21 12:21:40,886 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:21:40,886 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] [2022-07-21 12:21:40,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-21 12:21:41,111 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 [2022-07-21 12:21:41,111 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:21:41,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:21:41,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1092744394, now seen corresponding path program 2 times [2022-07-21 12:21:41,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:21:41,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201911683] [2022-07-21 12:21:41,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:21:41,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:21:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:21:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 12:21:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-21 12:21:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 12:21:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 12:21:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:21:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:21:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 12:21:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 12:21:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 12:21:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:21:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:21:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:21:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 12:21:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:21:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 12:21:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 12:21:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:21:41,607 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-07-21 12:21:41,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:21:41,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201911683] [2022-07-21 12:21:41,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201911683] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:21:41,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:21:41,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 12:21:41,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213739551] [2022-07-21 12:21:41,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:21:41,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 12:21:41,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:21:41,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 12:21:41,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 12:21:41,610 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) [2022-07-21 12:21:45,555 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 [] [2022-07-21 12:21:47,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:22:11,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:22:14,788 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 []