./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-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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-08_1a-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 a3ff87c3e5fb8bea0460b71e9b9f7b5386599503dd506c0803db0e63f978b184 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 14:37:08,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 14:37:08,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 14:37:09,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 14:37:09,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 14:37:09,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 14:37:09,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 14:37:09,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 14:37:09,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 14:37:09,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 14:37:09,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 14:37:09,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 14:37:09,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 14:37:09,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 14:37:09,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 14:37:09,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 14:37:09,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 14:37:09,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 14:37:09,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 14:37:09,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 14:37:09,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 14:37:09,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 14:37:09,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 14:37:09,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 14:37:09,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 14:37:09,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 14:37:09,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 14:37:09,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 14:37:09,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 14:37:09,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 14:37:09,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 14:37:09,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 14:37:09,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 14:37:09,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 14:37:09,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 14:37:09,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 14:37:09,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 14:37:09,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 14:37:09,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 14:37:09,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 14:37:09,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 14:37:09,060 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 14:37:09,083 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 14:37:09,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 14:37:09,084 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 14:37:09,084 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 14:37:09,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 14:37:09,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 14:37:09,086 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 14:37:09,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 14:37:09,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 14:37:09,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 14:37:09,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 14:37:09,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 14:37:09,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 14:37:09,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 14:37:09,087 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 14:37:09,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 14:37:09,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 14:37:09,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 14:37:09,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 14:37:09,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:37:09,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 14:37:09,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 14:37:09,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 14:37:09,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 14:37:09,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 14:37:09,089 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 14:37:09,089 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 14:37:09,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 14:37:09,089 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 14:37:09,090 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3ff87c3e5fb8bea0460b71e9b9f7b5386599503dd506c0803db0e63f978b184 [2021-11-07 14:37:09,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 14:37:09,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 14:37:09,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 14:37:09,281 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 14:37:09,281 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 14:37:09,282 INFO L432 ainManager$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-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i [2021-11-07 14:37:09,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd4420261/8634d2f6ccd94b1ba86aa842cef9a4b6/FLAG23a0f1bd4 [2021-11-07 14:37:09,972 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 14:37:09,973 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i [2021-11-07 14:37:10,023 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd4420261/8634d2f6ccd94b1ba86aa842cef9a4b6/FLAG23a0f1bd4 [2021-11-07 14:37:10,115 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd4420261/8634d2f6ccd94b1ba86aa842cef9a4b6 [2021-11-07 14:37:10,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 14:37:10,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 14:37:10,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 14:37:10,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 14:37:10,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 14:37:10,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:37:10" (1/1) ... [2021-11-07 14:37:10,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56b5297e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:10, skipping insertion in model container [2021-11-07 14:37:10,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:37:10" (1/1) ... [2021-11-07 14:37:10,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 14:37:10,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 14:37:12,122 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i[413960,413973] [2021-11-07 14:37:12,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:37:12,215 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 14:37:12,547 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i[413960,413973] [2021-11-07 14:37:12,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:37:12,670 INFO L208 MainTranslator]: Completed translation [2021-11-07 14:37:12,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:12 WrapperNode [2021-11-07 14:37:12,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 14:37:12,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 14:37:12,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 14:37:12,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 14:37:12,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:12" (1/1) ... [2021-11-07 14:37:12,768 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:12" (1/1) ... [2021-11-07 14:37:13,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 14:37:13,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 14:37:13,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 14:37:13,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 14:37:13,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:12" (1/1) ... [2021-11-07 14:37:13,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:12" (1/1) ... [2021-11-07 14:37:13,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:12" (1/1) ... [2021-11-07 14:37:13,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:12" (1/1) ... [2021-11-07 14:37:13,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:12" (1/1) ... [2021-11-07 14:37:13,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:12" (1/1) ... [2021-11-07 14:37:13,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:12" (1/1) ... [2021-11-07 14:37:13,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 14:37:13,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 14:37:13,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 14:37:13,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 14:37:13,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:12" (1/1) ... [2021-11-07 14:37:13,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:37:13,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 14:37:13,643 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) [2021-11-07 14:37:13,667 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 [2021-11-07 14:37:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_done [2021-11-07 14:37:13,687 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_done [2021-11-07 14:37:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-07 14:37:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_vport_destroy [2021-11-07 14:37:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_vport_destroy [2021-11-07 14:37:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ctlr_alloc [2021-11-07 14:37:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ctlr_alloc [2021-11-07 14:37:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 14:37:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_remove [2021-11-07 14:37:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_remove [2021-11-07 14:37:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 14:37:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_target [2021-11-07 14:37:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_target [2021-11-07 14:37:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 14:37:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_setup [2021-11-07 14:37:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_setup [2021-11-07 14:37:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 14:37:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure _fcoe_create [2021-11-07 14:37:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure _fcoe_create [2021-11-07 14:37:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 14:37:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 14:37:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 14:37:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 14:37:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 14:37:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 14:37:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 14:37:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 14:37:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 14:37:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-07 14:37:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_17 [2021-11-07 14:37:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_17 [2021-11-07 14:37:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_create [2021-11-07 14:37:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_create [2021-11-07 14:37:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 14:37:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 14:37:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-11-07 14:37:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-11-07 14:37:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_cleanup [2021-11-07 14:37:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_cleanup [2021-11-07 14:37:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 14:37:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-11-07 14:37:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-11-07 14:37:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~TO~int [2021-11-07 14:37:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~TO~int [2021-11-07 14:37:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_if_destroy [2021-11-07 14:37:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_if_destroy [2021-11-07 14:37:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_setup [2021-11-07 14:37:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_setup [2021-11-07 14:37:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 14:37:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_destroy_work [2021-11-07 14:37:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_destroy_work [2021-11-07 14:37:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-11-07 14:37:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-11-07 14:37:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 14:37:28,742 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 14:37:28,743 INFO L299 CfgBuilder]: Removed 3018 assume(true) statements. [2021-11-07 14:37:28,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:37:28 BoogieIcfgContainer [2021-11-07 14:37:28,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 14:37:28,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 14:37:28,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 14:37:28,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 14:37:28,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:37:10" (1/3) ... [2021-11-07 14:37:28,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ded09b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:37:28, skipping insertion in model container [2021-11-07 14:37:28,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:12" (2/3) ... [2021-11-07 14:37:28,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ded09b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:37:28, skipping insertion in model container [2021-11-07 14:37:28,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:37:28" (3/3) ... [2021-11-07 14:37:28,755 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i [2021-11-07 14:37:28,759 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 14:37:28,759 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 14:37:28,806 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 14:37:28,811 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 [2021-11-07 14:37:28,811 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 14:37:28,874 INFO L276 IsEmpty]: Start isEmpty. Operand has 3836 states, 3773 states have (on average 1.5096739994699178) internal successors, (5696), 3782 states have internal predecessors, (5696), 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) [2021-11-07 14:37:28,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-07 14:37:28,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:37:28,899 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] [2021-11-07 14:37:28,900 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 14:37:28,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:37:28,907 INFO L85 PathProgramCache]: Analyzing trace with hash -352933849, now seen corresponding path program 1 times [2021-11-07 14:37:28,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:37:28,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895296621] [2021-11-07 14:37:28,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:37:28,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:37:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:37:29,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:37:29,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:37:29,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895296621] [2021-11-07 14:37:29,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895296621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:37:29,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:37:29,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:37:29,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697985362] [2021-11-07 14:37:29,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:37:29,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 14:37:29,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:37:29,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 14:37:29,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:37:29,439 INFO L87 Difference]: Start difference. First operand has 3836 states, 3773 states have (on average 1.5096739994699178) internal successors, (5696), 3782 states have internal predecessors, (5696), 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 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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) [2021-11-07 14:37:29,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:37:29,582 INFO L93 Difference]: Finished difference Result 7668 states and 11583 transitions. [2021-11-07 14:37:29,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 14:37:29,584 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2021-11-07 14:37:29,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:37:29,611 INFO L225 Difference]: With dead ends: 7668 [2021-11-07 14:37:29,611 INFO L226 Difference]: Without dead ends: 3819 [2021-11-07 14:37:29,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:37:29,631 INFO L933 BasicCegarLoop]: 5655 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5655 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.13ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 14:37:29,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5655 Invalid, 0 Unknown, 0 Unchecked, 11.13ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 14:37:29,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3819 states. [2021-11-07 14:37:29,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3819 to 3819. [2021-11-07 14:37:29,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3819 states, 3757 states have (on average 1.4753792919882884) internal successors, (5543), 3765 states have internal predecessors, (5543), 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) [2021-11-07 14:37:29,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3819 states to 3819 states and 5625 transitions. [2021-11-07 14:37:29,773 INFO L78 Accepts]: Start accepts. Automaton has 3819 states and 5625 transitions. Word has length 127 [2021-11-07 14:37:29,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:37:29,774 INFO L470 AbstractCegarLoop]: Abstraction has 3819 states and 5625 transitions. [2021-11-07 14:37:29,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 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) [2021-11-07 14:37:29,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3819 states and 5625 transitions. [2021-11-07 14:37:29,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-07 14:37:29,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:37:29,781 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] [2021-11-07 14:37:29,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 14:37:29,782 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 14:37:29,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:37:29,786 INFO L85 PathProgramCache]: Analyzing trace with hash 24647893, now seen corresponding path program 1 times [2021-11-07 14:37:29,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:37:29,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132343376] [2021-11-07 14:37:29,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:37:29,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:37:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:37:30,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:37:30,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:37:30,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132343376] [2021-11-07 14:37:30,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132343376] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:37:30,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:37:30,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:37:30,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043607757] [2021-11-07 14:37:30,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:37:30,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:37:30,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:37:30,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:37:30,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:37:30,229 INFO L87 Difference]: Start difference. First operand 3819 states and 5625 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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) [2021-11-07 14:37:30,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:37:30,419 INFO L93 Difference]: Finished difference Result 11241 states and 16686 transitions. [2021-11-07 14:37:30,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:37:30,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2021-11-07 14:37:30,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:37:30,449 INFO L225 Difference]: With dead ends: 11241 [2021-11-07 14:37:30,449 INFO L226 Difference]: Without dead ends: 7521 [2021-11-07 14:37:30,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.83ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:37:30,462 INFO L933 BasicCegarLoop]: 5664 mSDtfsCounter, 5493 mSDsluCounter, 5524 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5493 SdHoareTripleChecker+Valid, 11188 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.82ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.22ms IncrementalHoareTripleChecker+Time [2021-11-07 14:37:30,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5493 Valid, 11188 Invalid, 13 Unknown, 0 Unchecked, 26.82ms Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 20.22ms Time] [2021-11-07 14:37:30,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7521 states. [2021-11-07 14:37:30,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7521 to 7517. [2021-11-07 14:37:30,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7517 states, 7396 states have (on average 1.4799891833423473) internal successors, (10946), 7411 states have internal predecessors, (10946), 82 states have call successors, (82), 36 states have call predecessors, (82), 36 states have return successors, (113), 81 states have call predecessors, (113), 82 states have call successors, (113) [2021-11-07 14:37:30,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7517 states to 7517 states and 11141 transitions. [2021-11-07 14:37:30,733 INFO L78 Accepts]: Start accepts. Automaton has 7517 states and 11141 transitions. Word has length 127 [2021-11-07 14:37:30,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:37:30,735 INFO L470 AbstractCegarLoop]: Abstraction has 7517 states and 11141 transitions. [2021-11-07 14:37:30,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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) [2021-11-07 14:37:30,735 INFO L276 IsEmpty]: Start isEmpty. Operand 7517 states and 11141 transitions. [2021-11-07 14:37:30,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-07 14:37:30,740 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:37:30,740 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] [2021-11-07 14:37:30,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 14:37:30,741 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 14:37:30,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:37:30,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1603353057, now seen corresponding path program 1 times [2021-11-07 14:37:30,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:37:30,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935744197] [2021-11-07 14:37:30,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:37:30,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:37:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:37:30,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:37:30,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:37:30,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935744197] [2021-11-07 14:37:30,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935744197] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:37:30,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:37:30,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:37:30,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567421171] [2021-11-07 14:37:30,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:37:30,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:37:30,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:37:30,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:37:30,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:37:30,970 INFO L87 Difference]: Start difference. First operand 7517 states and 11141 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:37:31,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:37:31,267 INFO L93 Difference]: Finished difference Result 22171 states and 32943 transitions. [2021-11-07 14:37:31,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:37:31,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2021-11-07 14:37:31,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:37:31,342 INFO L225 Difference]: With dead ends: 22171 [2021-11-07 14:37:31,342 INFO L226 Difference]: Without dead ends: 14760 [2021-11-07 14:37:31,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.51ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:37:31,366 INFO L933 BasicCegarLoop]: 5673 mSDtfsCounter, 5501 mSDsluCounter, 5479 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5501 SdHoareTripleChecker+Valid, 11152 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.80ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.79ms IncrementalHoareTripleChecker+Time [2021-11-07 14:37:31,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5501 Valid, 11152 Invalid, 23 Unknown, 0 Unchecked, 14.80ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 74.79ms Time] [2021-11-07 14:37:31,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14760 states. [2021-11-07 14:37:31,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14760 to 14683. [2021-11-07 14:37:31,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14683 states, 14448 states have (on average 1.4860880398671097) internal successors, (21471), 14477 states have internal predecessors, (21471), 160 states have call successors, (160), 72 states have call predecessors, (160), 72 states have return successors, (220), 157 states have call predecessors, (220), 160 states have call successors, (220) [2021-11-07 14:37:31,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14683 states to 14683 states and 21851 transitions. [2021-11-07 14:37:31,837 INFO L78 Accepts]: Start accepts. Automaton has 14683 states and 21851 transitions. Word has length 147 [2021-11-07 14:37:31,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:37:31,837 INFO L470 AbstractCegarLoop]: Abstraction has 14683 states and 21851 transitions. [2021-11-07 14:37:31,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:37:31,838 INFO L276 IsEmpty]: Start isEmpty. Operand 14683 states and 21851 transitions. [2021-11-07 14:37:31,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-07 14:37:31,844 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:37:31,845 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, 1, 1, 1, 1, 1] [2021-11-07 14:37:31,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 14:37:31,845 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 14:37:31,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:37:31,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1331533072, now seen corresponding path program 1 times [2021-11-07 14:37:31,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:37:31,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963630346] [2021-11-07 14:37:31,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:37:31,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:37:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:37:32,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:37:32,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:37:32,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963630346] [2021-11-07 14:37:32,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963630346] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:37:32,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:37:32,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:37:32,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550855265] [2021-11-07 14:37:32,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:37:32,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:37:32,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:37:32,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:37:32,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:37:32,063 INFO L87 Difference]: Start difference. First operand 14683 states and 21851 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:37:32,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:37:32,579 INFO L93 Difference]: Finished difference Result 41105 states and 61485 transitions. [2021-11-07 14:37:32,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:37:32,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 189 [2021-11-07 14:37:32,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:37:32,668 INFO L225 Difference]: With dead ends: 41105 [2021-11-07 14:37:32,668 INFO L226 Difference]: Without dead ends: 26528 [2021-11-07 14:37:32,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.77ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:37:32,718 INFO L933 BasicCegarLoop]: 5779 mSDtfsCounter, 4657 mSDsluCounter, 5464 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4657 SdHoareTripleChecker+Valid, 11243 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.97ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.66ms IncrementalHoareTripleChecker+Time [2021-11-07 14:37:32,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4657 Valid, 11243 Invalid, 38 Unknown, 0 Unchecked, 15.97ms Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 80.66ms Time] [2021-11-07 14:37:32,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26528 states. [2021-11-07 14:37:33,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26528 to 26441. [2021-11-07 14:37:33,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26441 states, 25978 states have (on average 1.498229270921549) internal successors, (38921), 26035 states have internal predecessors, (38921), 316 states have call successors, (316), 144 states have call predecessors, (316), 144 states have return successors, (434), 309 states have call predecessors, (434), 316 states have call successors, (434) [2021-11-07 14:37:33,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26441 states to 26441 states and 39671 transitions. [2021-11-07 14:37:33,376 INFO L78 Accepts]: Start accepts. Automaton has 26441 states and 39671 transitions. Word has length 189 [2021-11-07 14:37:33,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:37:33,377 INFO L470 AbstractCegarLoop]: Abstraction has 26441 states and 39671 transitions. [2021-11-07 14:37:33,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:37:33,378 INFO L276 IsEmpty]: Start isEmpty. Operand 26441 states and 39671 transitions. [2021-11-07 14:37:33,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-07 14:37:33,386 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:37:33,386 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, 1, 1, 1, 1, 1, 1] [2021-11-07 14:37:33,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 14:37:33,387 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 14:37:33,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:37:33,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1012464129, now seen corresponding path program 1 times [2021-11-07 14:37:33,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:37:33,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71601138] [2021-11-07 14:37:33,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:37:33,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:37:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:37:33,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-07 14:37:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:37:33,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-07 14:37:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:37:33,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-07 14:37:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:37:33,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:37:33,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:37:33,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71601138] [2021-11-07 14:37:33,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71601138] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:37:33,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:37:33,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 14:37:33,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335795272] [2021-11-07 14:37:33,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:37:33,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 14:37:33,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:37:33,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 14:37:33,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 14:37:33,892 INFO L87 Difference]: Start difference. First operand 26441 states and 39671 transitions. Second operand has 7 states, 7 states have (on average 26.0) internal successors, (182), 6 states have internal predecessors, (182), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-07 14:37:35,930 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:37:38,042 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:37:44,140 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:37:46,650 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:37:49,566 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:37:52,732 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:37:55,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:37:59,347 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:38:05,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:38:05,019 INFO L93 Difference]: Finished difference Result 134945 states and 208475 transitions. [2021-11-07 14:38:05,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 14:38:05,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 6 states have internal predecessors, (182), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 190 [2021-11-07 14:38:05,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:38:05,407 INFO L225 Difference]: With dead ends: 134945 [2021-11-07 14:38:05,407 INFO L226 Difference]: Without dead ends: 108610 [2021-11-07 14:38:05,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 282.62ms TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-11-07 14:38:05,516 INFO L933 BasicCegarLoop]: 9423 mSDtfsCounter, 29543 mSDsluCounter, 28979 mSDsCounter, 0 mSdLazyCounter, 3377 mSolverCounterSat, 1078 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26192.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29581 SdHoareTripleChecker+Valid, 38402 SdHoareTripleChecker+Invalid, 4463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 173.12ms SdHoareTripleChecker+Time, 1078 IncrementalHoareTripleChecker+Valid, 3377 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28313.64ms IncrementalHoareTripleChecker+Time [2021-11-07 14:38:05,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29581 Valid, 38402 Invalid, 4463 Unknown, 0 Unchecked, 173.12ms Time], IncrementalHoareTripleChecker [1078 Valid, 3377 Invalid, 8 Unknown, 0 Unchecked, 28313.64ms Time] [2021-11-07 14:38:05,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108610 states. [2021-11-07 14:38:08,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108610 to 98341. [2021-11-07 14:38:08,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98341 states, 96338 states have (on average 1.4902219269654757) internal successors, (143565), 96563 states have internal predecessors, (143565), 1064 states have call successors, (1064), 392 states have call predecessors, (1064), 936 states have return successors, (5754), 1665 states have call predecessors, (5754), 1064 states have call successors, (5754) [2021-11-07 14:38:08,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98341 states to 98341 states and 150383 transitions. [2021-11-07 14:38:08,936 INFO L78 Accepts]: Start accepts. Automaton has 98341 states and 150383 transitions. Word has length 190 [2021-11-07 14:38:08,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:38:08,936 INFO L470 AbstractCegarLoop]: Abstraction has 98341 states and 150383 transitions. [2021-11-07 14:38:08,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 6 states have internal predecessors, (182), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-07 14:38:08,937 INFO L276 IsEmpty]: Start isEmpty. Operand 98341 states and 150383 transitions. [2021-11-07 14:38:08,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-07 14:38:08,942 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:38:08,942 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:38:08,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 14:38:08,942 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 14:38:08,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:38:08,943 INFO L85 PathProgramCache]: Analyzing trace with hash 22559742, now seen corresponding path program 1 times [2021-11-07 14:38:08,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:38:08,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361212420] [2021-11-07 14:38:08,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:38:08,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:38:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:38:09,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-07 14:38:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:38:09,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-07 14:38:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:38:09,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-07 14:38:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:38:09,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:38:09,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:38:09,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361212420] [2021-11-07 14:38:09,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361212420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:38:09,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:38:09,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 14:38:09,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459555544] [2021-11-07 14:38:09,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:38:09,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 14:38:09,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:38:09,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 14:38:09,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 14:38:09,561 INFO L87 Difference]: Start difference. First operand 98341 states and 150383 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 6 states have internal predecessors, (184), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-07 14:38:11,596 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:38:20,414 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:38:37,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:38:37,176 INFO L93 Difference]: Finished difference Result 611825 states and 1031643 transitions. [2021-11-07 14:38:37,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 14:38:37,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 6 states have internal predecessors, (184), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 192 [2021-11-07 14:38:37,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:38:40,283 INFO L225 Difference]: With dead ends: 611825 [2021-11-07 14:38:40,283 INFO L226 Difference]: Without dead ends: 513590 [2021-11-07 14:38:41,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 272.85ms TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-11-07 14:38:41,447 INFO L933 BasicCegarLoop]: 9381 mSDtfsCounter, 27057 mSDsluCounter, 25120 mSDsCounter, 0 mSdLazyCounter, 2494 mSolverCounterSat, 1107 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10388.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27092 SdHoareTripleChecker+Valid, 34501 SdHoareTripleChecker+Invalid, 3603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 100.62ms SdHoareTripleChecker+Time, 1107 IncrementalHoareTripleChecker+Valid, 2494 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11371.21ms IncrementalHoareTripleChecker+Time [2021-11-07 14:38:41,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27092 Valid, 34501 Invalid, 3603 Unknown, 0 Unchecked, 100.62ms Time], IncrementalHoareTripleChecker [1107 Valid, 2494 Invalid, 2 Unknown, 0 Unchecked, 11371.21ms Time] [2021-11-07 14:38:41,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513590 states.