./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-43_2a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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-43_2a-drivers--scsi--fcoe--fcoe.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 b09307eff68471b13f9f4af8ca37265160c175233f57a4afa3e4fdd6d6503a6b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 01:46:30,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:46:30,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:46:30,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:46:30,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:46:30,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:46:30,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:46:30,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:46:30,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:46:30,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:46:30,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:46:30,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:46:30,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:46:30,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:46:30,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:46:30,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:46:30,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:46:30,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:46:30,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:46:30,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:46:30,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:46:30,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:46:30,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:46:30,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:46:30,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:46:30,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:46:30,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:46:30,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:46:30,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:46:30,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:46:30,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:46:30,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:46:30,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:46:30,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:46:30,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:46:30,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:46:30,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:46:30,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:46:30,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:46:30,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:46:30,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:46:30,775 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 01:46:30,796 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:46:30,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:46:30,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:46:30,801 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:46:30,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:46:30,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:46:30,802 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 01:46:30,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:46:30,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:46:30,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:46:30,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:46:30,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:46:30,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:46:30,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:46:30,804 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:46:30,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:46:30,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:46:30,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 01:46:30,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:46:30,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:46:30,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:46:30,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:46:30,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:46:30,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 01:46:30,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:46:30,806 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 01:46:30,806 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 01:46:30,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:46:30,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:46:30,808 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b09307eff68471b13f9f4af8ca37265160c175233f57a4afa3e4fdd6d6503a6b [2021-11-23 01:46:31,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:46:31,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:46:31,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:46:31,043 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:46:31,044 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:46:31,045 INFO L432 ainManager$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-43_2a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i [2021-11-23 01:46:31,111 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9974928/7d74697fcefd47c68bdf21c6a0289a3a/FLAG2714c3cbb [2021-11-23 01:46:31,855 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:46:31,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i [2021-11-23 01:46:31,918 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9974928/7d74697fcefd47c68bdf21c6a0289a3a/FLAG2714c3cbb [2021-11-23 01:46:32,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9974928/7d74697fcefd47c68bdf21c6a0289a3a [2021-11-23 01:46:32,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:46:32,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:46:32,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:46:32,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:46:32,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:46:32,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:46:32" (1/1) ... [2021-11-23 01:46:32,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@302b33b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:32, skipping insertion in model container [2021-11-23 01:46:32,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:46:32" (1/1) ... [2021-11-23 01:46:32,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:46:32,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:46:34,849 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-43_2a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i[416808,416821] [2021-11-23 01:46:34,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:46:34,993 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:46:35,539 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-43_2a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i[416808,416821] [2021-11-23 01:46:35,568 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:46:35,738 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:46:35,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:35 WrapperNode [2021-11-23 01:46:35,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:46:35,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:46:35,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:46:35,742 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:46:35,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:35" (1/1) ... [2021-11-23 01:46:35,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:35" (1/1) ... [2021-11-23 01:46:36,174 INFO L137 Inliner]: procedures = 426, calls = 2211, calls flagged for inlining = 823, calls inlined = 1562, statements flattened = 18751 [2021-11-23 01:46:36,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:46:36,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:46:36,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:46:36,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:46:36,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:35" (1/1) ... [2021-11-23 01:46:36,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:35" (1/1) ... [2021-11-23 01:46:36,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:35" (1/1) ... [2021-11-23 01:46:36,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:35" (1/1) ... [2021-11-23 01:46:36,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:35" (1/1) ... [2021-11-23 01:46:36,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:35" (1/1) ... [2021-11-23 01:46:36,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:35" (1/1) ... [2021-11-23 01:46:36,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:46:36,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:46:36,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:46:36,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:46:36,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:35" (1/1) ... [2021-11-23 01:46:36,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:46:36,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 01:46:37,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 01:46:37,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 01:46:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_done [2021-11-23 01:46:37,115 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_done [2021-11-23 01:46:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-23 01:46:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_vport_destroy [2021-11-23 01:46:37,115 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_vport_destroy [2021-11-23 01:46:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ctlr_alloc [2021-11-23 01:46:37,115 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ctlr_alloc [2021-11-23 01:46:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:46:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_remove [2021-11-23 01:46:37,116 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_remove [2021-11-23 01:46:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 01:46:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_target [2021-11-23 01:46:37,116 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_target [2021-11-23 01:46:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 01:46:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_setup [2021-11-23 01:46:37,116 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_setup [2021-11-23 01:46:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:46:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure _fcoe_create [2021-11-23 01:46:37,117 INFO L138 BoogieDeclarations]: Found implementation of procedure _fcoe_create [2021-11-23 01:46:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:46:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:46:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:46:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 01:46:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 01:46:37,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 01:46:37,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:46:37,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:46:37,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 01:46:37,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 01:46:37,125 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 01:46:37,126 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_create [2021-11-23 01:46:37,126 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_create [2021-11-23 01:46:37,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:46:37,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:46:37,126 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-11-23 01:46:37,126 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-11-23 01:46:37,127 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_cleanup [2021-11-23 01:46:37,127 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_cleanup [2021-11-23 01:46:37,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 01:46:37,127 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-11-23 01:46:37,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-11-23 01:46:37,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_46 [2021-11-23 01:46:37,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_46 [2021-11-23 01:46:37,128 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~TO~int [2021-11-23 01:46:37,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~TO~int [2021-11-23 01:46:37,128 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_if_destroy [2021-11-23 01:46:37,129 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_if_destroy [2021-11-23 01:46:37,129 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_setup [2021-11-23 01:46:37,129 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_setup [2021-11-23 01:46:37,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:46:37,129 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_destroy_work [2021-11-23 01:46:37,130 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_destroy_work [2021-11-23 01:46:37,130 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-11-23 01:46:37,130 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-11-23 01:46:37,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:46:38,388 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:46:38,389 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:46:53,315 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:46:53,358 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:46:53,359 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 01:46:53,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:46:53 BoogieIcfgContainer [2021-11-23 01:46:53,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:46:53,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 01:46:53,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 01:46:53,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 01:46:53,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:46:32" (1/3) ... [2021-11-23 01:46:53,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@469aef86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:46:53, skipping insertion in model container [2021-11-23 01:46:53,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:35" (2/3) ... [2021-11-23 01:46:53,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@469aef86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:46:53, skipping insertion in model container [2021-11-23 01:46:53,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:46:53" (3/3) ... [2021-11-23 01:46:53,374 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i [2021-11-23 01:46:53,379 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 01:46:53,379 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-23 01:46:53,431 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 01:46:53,436 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 01:46:53,437 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-23 01:46:53,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 4097 states, 4034 states have (on average 1.4747149231531977) internal successors, (5949), 4043 states have internal predecessors, (5949), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-11-23 01:46:53,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-23 01:46:53,539 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:46:53,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:46:53,540 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION === [_fcoe_createErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:46:53,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:46:53,545 INFO L85 PathProgramCache]: Analyzing trace with hash -82730235, now seen corresponding path program 1 times [2021-11-23 01:46:53,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 01:46:53,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928505501] [2021-11-23 01:46:53,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:46:53,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:46:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:54,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:46:54,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 01:46:54,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928505501] [2021-11-23 01:46:54,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928505501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:46:54,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:46:54,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 01:46:54,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484944913] [2021-11-23 01:46:54,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:46:54,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 01:46:54,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 01:46:54,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 01:46:54,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 01:46:54,346 INFO L87 Difference]: Start difference. First operand has 4097 states, 4034 states have (on average 1.4747149231531977) internal successors, (5949), 4043 states have internal predecessors, (5949), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:46:54,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:46:54,527 INFO L93 Difference]: Finished difference Result 8187 states and 12086 transitions. [2021-11-23 01:46:54,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 01:46:54,529 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2021-11-23 01:46:54,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:46:54,564 INFO L225 Difference]: With dead ends: 8187 [2021-11-23 01:46:54,564 INFO L226 Difference]: Without dead ends: 4070 [2021-11-23 01:46:54,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 01:46:54,592 INFO L933 BasicCegarLoop]: 5907 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5907 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 01:46:54,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5907 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 01:46:54,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4070 states. [2021-11-23 01:46:54,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4070 to 4070. [2021-11-23 01:46:54,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4070 states, 4008 states have (on average 1.4441117764471059) internal successors, (5788), 4017 states have internal predecessors, (5788), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-23 01:46:54,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4070 states to 4070 states and 5869 transitions. [2021-11-23 01:46:54,769 INFO L78 Accepts]: Start accepts. Automaton has 4070 states and 5869 transitions. Word has length 161 [2021-11-23 01:46:54,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:46:54,769 INFO L470 AbstractCegarLoop]: Abstraction has 4070 states and 5869 transitions. [2021-11-23 01:46:54,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:46:54,771 INFO L276 IsEmpty]: Start isEmpty. Operand 4070 states and 5869 transitions. [2021-11-23 01:46:54,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-23 01:46:54,785 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:46:54,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:46:54,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 01:46:54,786 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION === [_fcoe_createErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:46:54,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:46:54,789 INFO L85 PathProgramCache]: Analyzing trace with hash -191808593, now seen corresponding path program 1 times [2021-11-23 01:46:54,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 01:46:54,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654984400] [2021-11-23 01:46:54,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:46:54,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:46:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:55,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:46:55,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 01:46:55,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654984400] [2021-11-23 01:46:55,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654984400] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:46:55,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:46:55,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 01:46:55,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985043264] [2021-11-23 01:46:55,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:46:55,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:46:55,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 01:46:55,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:46:55,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:46:55,251 INFO L87 Difference]: Start difference. First operand 4070 states and 5869 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:46:55,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:46:55,562 INFO L93 Difference]: Finished difference Result 11283 states and 16371 transitions. [2021-11-23 01:46:55,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:46:55,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2021-11-23 01:46:55,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:46:55,598 INFO L225 Difference]: With dead ends: 11283 [2021-11-23 01:46:55,599 INFO L226 Difference]: Without dead ends: 7319 [2021-11-23 01:46:55,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:46:55,613 INFO L933 BasicCegarLoop]: 5911 mSDtfsCounter, 4875 mSDsluCounter, 5708 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4875 SdHoareTripleChecker+Valid, 11619 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 01:46:55,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4875 Valid, 11619 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 01:46:55,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7319 states. [2021-11-23 01:46:55,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7319 to 7279. [2021-11-23 01:46:55,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7279 states, 7159 states have (on average 1.4566280206732785) internal successors, (10428), 7175 states have internal predecessors, (10428), 81 states have call successors, (81), 36 states have call predecessors, (81), 36 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2021-11-23 01:46:55,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7279 states to 7279 states and 10588 transitions. [2021-11-23 01:46:55,936 INFO L78 Accepts]: Start accepts. Automaton has 7279 states and 10588 transitions. Word has length 161 [2021-11-23 01:46:55,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:46:55,939 INFO L470 AbstractCegarLoop]: Abstraction has 7279 states and 10588 transitions. [2021-11-23 01:46:55,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:46:55,940 INFO L276 IsEmpty]: Start isEmpty. Operand 7279 states and 10588 transitions. [2021-11-23 01:46:55,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-23 01:46:55,948 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:46:55,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:46:55,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 01:46:55,949 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION === [_fcoe_createErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:46:55,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:46:55,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1171453816, now seen corresponding path program 1 times [2021-11-23 01:46:55,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 01:46:55,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477065744] [2021-11-23 01:46:55,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:46:55,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:46:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:56,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-23 01:46:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:56,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-23 01:46:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:46:56,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:46:56,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 01:46:56,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477065744] [2021-11-23 01:46:56,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477065744] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:46:56,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:46:56,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 01:46:56,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599022048] [2021-11-23 01:46:56,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:46:56,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 01:46:56,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 01:46:56,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 01:46:56,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 01:46:56,660 INFO L87 Difference]: Start difference. First operand 7279 states and 10588 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 01:47:01,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:47:04,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:47:06,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:47:06,209 INFO L93 Difference]: Finished difference Result 26329 states and 38770 transitions. [2021-11-23 01:47:06,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 01:47:06,210 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 184 [2021-11-23 01:47:06,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:47:06,344 INFO L225 Difference]: With dead ends: 26329 [2021-11-23 01:47:06,344 INFO L226 Difference]: Without dead ends: 19156 [2021-11-23 01:47:06,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-23 01:47:06,394 INFO L933 BasicCegarLoop]: 5895 mSDtfsCounter, 13298 mSDsluCounter, 18933 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 437 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13307 SdHoareTripleChecker+Valid, 24828 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-23 01:47:06,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13307 Valid, 24828 Invalid, 1464 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [437 Valid, 1025 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2021-11-23 01:47:06,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19156 states. [2021-11-23 01:47:07,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19156 to 18416. [2021-11-23 01:47:07,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18416 states, 18101 states have (on average 1.4566046074802497) internal successors, (26366), 18131 states have internal predecessors, (26366), 188 states have call successors, (188), 72 states have call predecessors, (188), 124 states have return successors, (429), 250 states have call predecessors, (429), 184 states have call successors, (429) [2021-11-23 01:47:07,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18416 states to 18416 states and 26983 transitions. [2021-11-23 01:47:07,307 INFO L78 Accepts]: Start accepts. Automaton has 18416 states and 26983 transitions. Word has length 184 [2021-11-23 01:47:07,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:47:07,309 INFO L470 AbstractCegarLoop]: Abstraction has 18416 states and 26983 transitions. [2021-11-23 01:47:07,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 01:47:07,310 INFO L276 IsEmpty]: Start isEmpty. Operand 18416 states and 26983 transitions. [2021-11-23 01:47:07,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-23 01:47:07,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:47:07,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:47:07,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 01:47:07,319 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION === [_fcoe_createErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:47:07,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:47:07,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2122463985, now seen corresponding path program 1 times [2021-11-23 01:47:07,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 01:47:07,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120415476] [2021-11-23 01:47:07,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:47:07,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:47:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:47:07,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-23 01:47:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:47:07,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-23 01:47:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:47:07,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:47:07,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 01:47:07,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120415476] [2021-11-23 01:47:07,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120415476] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:47:07,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:47:07,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 01:47:07,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044176202] [2021-11-23 01:47:07,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:47:07,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 01:47:07,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 01:47:07,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 01:47:07,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 01:47:07,892 INFO L87 Difference]: Start difference. First operand 18416 states and 26983 transitions. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 5 states have internal predecessors, (176), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 01:47:10,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:47:15,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:47:19,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:47:19,155 INFO L93 Difference]: Finished difference Result 72358 states and 108924 transitions. [2021-11-23 01:47:19,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 01:47:19,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 5 states have internal predecessors, (176), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 182 [2021-11-23 01:47:19,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:47:19,375 INFO L225 Difference]: With dead ends: 72358 [2021-11-23 01:47:19,375 INFO L226 Difference]: Without dead ends: 54048 [2021-11-23 01:47:19,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-23 01:47:19,484 INFO L933 BasicCegarLoop]: 5867 mSDtfsCounter, 22656 mSDsluCounter, 16469 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 607 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22665 SdHoareTripleChecker+Valid, 22336 SdHoareTripleChecker+Invalid, 2136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 607 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2021-11-23 01:47:19,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22665 Valid, 22336 Invalid, 2136 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [607 Valid, 1527 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2021-11-23 01:47:19,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54048 states. [2021-11-23 01:47:21,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54048 to 52586. [2021-11-23 01:47:21,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52586 states, 51651 states have (on average 1.4552089988577182) internal successors, (75163), 51701 states have internal predecessors, (75163), 476 states have call successors, (476), 144 states have call predecessors, (476), 456 states have return successors, (2801), 868 states have call predecessors, (2801), 468 states have call successors, (2801) [2021-11-23 01:47:21,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52586 states to 52586 states and 78440 transitions. [2021-11-23 01:47:21,487 INFO L78 Accepts]: Start accepts. Automaton has 52586 states and 78440 transitions. Word has length 182 [2021-11-23 01:47:21,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:47:21,488 INFO L470 AbstractCegarLoop]: Abstraction has 52586 states and 78440 transitions. [2021-11-23 01:47:21,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 5 states have internal predecessors, (176), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 01:47:21,488 INFO L276 IsEmpty]: Start isEmpty. Operand 52586 states and 78440 transitions. [2021-11-23 01:47:21,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-23 01:47:21,496 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:47:21,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:47:21,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 01:47:21,497 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION === [_fcoe_createErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:47:21,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:47:21,497 INFO L85 PathProgramCache]: Analyzing trace with hash 117385556, now seen corresponding path program 1 times [2021-11-23 01:47:21,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 01:47:21,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90438888] [2021-11-23 01:47:21,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:47:21,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:47:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:47:21,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-23 01:47:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:47:21,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-23 01:47:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:47:22,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:47:22,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 01:47:22,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90438888] [2021-11-23 01:47:22,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90438888] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:47:22,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:47:22,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 01:47:22,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629516054] [2021-11-23 01:47:22,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:47:22,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 01:47:22,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 01:47:22,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 01:47:22,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 01:47:22,005 INFO L87 Difference]: Start difference. First operand 52586 states and 78440 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 01:47:24,731 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:47:29,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:47:33,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:47:36,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:47:39,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:47:42,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:47:42,504 INFO L93 Difference]: Finished difference Result 223857 states and 355057 transitions. [2021-11-23 01:47:42,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 01:47:42,505 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 183 [2021-11-23 01:47:42,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:47:43,556 INFO L225 Difference]: With dead ends: 223857 [2021-11-23 01:47:43,557 INFO L226 Difference]: Without dead ends: 171377 [2021-11-23 01:47:43,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-23 01:47:43,876 INFO L933 BasicCegarLoop]: 5798 mSDtfsCounter, 12806 mSDsluCounter, 21700 mSDsCounter, 0 mSdLazyCounter, 1638 mSolverCounterSat, 338 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12815 SdHoareTripleChecker+Valid, 27498 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 1638 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2021-11-23 01:47:43,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12815 Valid, 27498 Invalid, 1981 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [338 Valid, 1638 Invalid, 5 Unknown, 0 Unchecked, 16.1s Time] [2021-11-23 01:47:44,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171377 states. [2021-11-23 01:47:48,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171377 to 168471. [2021-11-23 01:47:48,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168471 states, 165380 states have (on average 1.4536642883057203) internal successors, (240407), 165430 states have internal predecessors, (240407), 1344 states have call successors, (1344), 288 states have call predecessors, (1344), 1744 states have return successors, (20753), 3208 states have call predecessors, (20753), 1328 states have call successors, (20753) [2021-11-23 01:47:50,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168471 states to 168471 states and 262504 transitions. [2021-11-23 01:47:50,422 INFO L78 Accepts]: Start accepts. Automaton has 168471 states and 262504 transitions. Word has length 183 [2021-11-23 01:47:50,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:47:50,423 INFO L470 AbstractCegarLoop]: Abstraction has 168471 states and 262504 transitions. [2021-11-23 01:47:50,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 01:47:50,424 INFO L276 IsEmpty]: Start isEmpty. Operand 168471 states and 262504 transitions. [2021-11-23 01:47:50,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-23 01:47:50,432 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:47:50,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:47:50,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 01:47:50,433 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION === [_fcoe_createErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:47:50,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:47:50,433 INFO L85 PathProgramCache]: Analyzing trace with hash 545095960, now seen corresponding path program 1 times [2021-11-23 01:47:50,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 01:47:50,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990239254] [2021-11-23 01:47:50,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:47:50,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:47:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:47:51,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-23 01:47:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:47:51,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-23 01:47:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:47:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:47:51,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 01:47:51,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990239254] [2021-11-23 01:47:51,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990239254] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:47:51,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:47:51,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 01:47:51,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857162567] [2021-11-23 01:47:51,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:47:51,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 01:47:51,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 01:47:51,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 01:47:51,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 01:47:51,160 INFO L87 Difference]: Start difference. First operand 168471 states and 262504 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 01:47:53,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:47:57,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:48:00,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 01:48:04,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:48:04,683 INFO L93 Difference]: Finished difference Result 179047 states and 280042 transitions. [2021-11-23 01:48:04,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 01:48:04,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 184 [2021-11-23 01:48:04,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:48:04,687 INFO L225 Difference]: With dead ends: 179047 [2021-11-23 01:48:04,687 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 01:48:05,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-23 01:48:05,404 INFO L933 BasicCegarLoop]: 5731 mSDtfsCounter, 13554 mSDsluCounter, 8355 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 357 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13557 SdHoareTripleChecker+Valid, 14086 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-23 01:48:05,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13557 Valid, 14086 Invalid, 1404 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [357 Valid, 1044 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2021-11-23 01:48:05,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 01:48:05,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 01:48:05,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 01:48:05,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 01:48:05,407 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 184 [2021-11-23 01:48:05,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:48:05,407 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 01:48:05,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 01:48:05,407 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 01:48:05,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:48:05,410 INFO L764 garLoopResultBuilder]: Registering result SAFE for location _fcoe_createErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-23 01:48:05,410 INFO L764 garLoopResultBuilder]: Registering result SAFE for location fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-23 01:48:05,410 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-23 01:48:05,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 01:48:05,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.