./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 5f08f0f0 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-5f08f0f [2021-11-05 18:04:04,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 18:04:04,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 18:04:04,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 18:04:04,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 18:04:04,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 18:04:04,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 18:04:04,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 18:04:04,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 18:04:04,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 18:04:04,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 18:04:04,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 18:04:04,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 18:04:04,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 18:04:04,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 18:04:04,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 18:04:04,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 18:04:04,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 18:04:04,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 18:04:04,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 18:04:04,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 18:04:04,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 18:04:04,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 18:04:04,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 18:04:04,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 18:04:04,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 18:04:04,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 18:04:04,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 18:04:04,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 18:04:04,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 18:04:04,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 18:04:04,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 18:04:04,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 18:04:04,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 18:04:04,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 18:04:04,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 18:04:04,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 18:04:04,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 18:04:04,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 18:04:04,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 18:04:04,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 18:04:04,759 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 18:04:04,787 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 18:04:04,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 18:04:04,788 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 18:04:04,788 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 18:04:04,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 18:04:04,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 18:04:04,790 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 18:04:04,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 18:04:04,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 18:04:04,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 18:04:04,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 18:04:04,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 18:04:04,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 18:04:04,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 18:04:04,792 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 18:04:04,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 18:04:04,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 18:04:04,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 18:04:04,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 18:04:04,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 18:04:04,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 18:04:04,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 18:04:04,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 18:04:04,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 18:04:04,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 18:04:04,793 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 18:04:04,794 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 18:04:04,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 18:04:04,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 18:04:04,794 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3ff87c3e5fb8bea0460b71e9b9f7b5386599503dd506c0803db0e63f978b184 [2021-11-05 18:04:05,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 18:04:05,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 18:04:05,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 18:04:05,055 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 18:04:05,056 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 18:04:05,057 INFO L432 ainManager$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 [2021-11-05 18:04:05,107 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec751d9bb/55c2206f2d104dfe9e4705991e790cc9/FLAG4bd4f4a74 [2021-11-05 18:04:05,868 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 18:04:05,868 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 [2021-11-05 18:04:05,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec751d9bb/55c2206f2d104dfe9e4705991e790cc9/FLAG4bd4f4a74 [2021-11-05 18:04:06,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec751d9bb/55c2206f2d104dfe9e4705991e790cc9 [2021-11-05 18:04:06,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 18:04:06,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 18:04:06,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 18:04:06,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 18:04:06,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 18:04:06,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 06:04:06" (1/1) ... [2021-11-05 18:04:06,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1c0069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:04:06, skipping insertion in model container [2021-11-05 18:04:06,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 06:04:06" (1/1) ... [2021-11-05 18:04:06,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 18:04:06,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 18:04:08,362 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] [2021-11-05 18:04:08,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 18:04:08,446 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 18:04:08,780 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] [2021-11-05 18:04:08,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 18:04:08,920 INFO L208 MainTranslator]: Completed translation [2021-11-05 18:04:08,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:04:08 WrapperNode [2021-11-05 18:04:08,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 18:04:08,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 18:04:08,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 18:04:08,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 18:04:08,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:04:08" (1/1) ... [2021-11-05 18:04:08,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:04:08" (1/1) ... [2021-11-05 18:04:09,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 18:04:09,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 18:04:09,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 18:04:09,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 18:04:09,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:04:08" (1/1) ... [2021-11-05 18:04:09,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:04:08" (1/1) ... [2021-11-05 18:04:09,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:04:08" (1/1) ... [2021-11-05 18:04:09,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:04:08" (1/1) ... [2021-11-05 18:04:09,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:04:08" (1/1) ... [2021-11-05 18:04:09,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:04:08" (1/1) ... [2021-11-05 18:04:09,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:04:08" (1/1) ... [2021-11-05 18:04:09,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 18:04:09,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 18:04:09,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 18:04:09,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 18:04:09,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:04:08" (1/1) ... [2021-11-05 18:04:09,975 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 18:04:09,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 18:04:10,030 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) [2021-11-05 18:04:10,050 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 [2021-11-05 18:04:10,062 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_done [2021-11-05 18:04:10,062 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_done [2021-11-05 18:04:10,062 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-05 18:04:10,063 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_vport_destroy [2021-11-05 18:04:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_vport_destroy [2021-11-05 18:04:10,063 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ctlr_alloc [2021-11-05 18:04:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ctlr_alloc [2021-11-05 18:04:10,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 18:04:10,063 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_remove [2021-11-05 18:04:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_remove [2021-11-05 18:04:10,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 18:04:10,064 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_target [2021-11-05 18:04:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_target [2021-11-05 18:04:10,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 18:04:10,064 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_setup [2021-11-05 18:04:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_setup [2021-11-05 18:04:10,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 18:04:10,065 INFO L130 BoogieDeclarations]: Found specification of procedure _fcoe_create [2021-11-05 18:04:10,065 INFO L138 BoogieDeclarations]: Found implementation of procedure _fcoe_create [2021-11-05 18:04:10,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 18:04:10,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 18:04:10,065 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 18:04:10,065 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-05 18:04:10,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-05 18:04:10,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 18:04:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 18:04:10,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 18:04:10,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 18:04:10,066 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-05 18:04:10,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_17 [2021-11-05 18:04:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_17 [2021-11-05 18:04:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_create [2021-11-05 18:04:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_create [2021-11-05 18:04:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 18:04:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 18:04:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-11-05 18:04:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-11-05 18:04:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_cleanup [2021-11-05 18:04:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_cleanup [2021-11-05 18:04:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 18:04:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-11-05 18:04:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-11-05 18:04:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~TO~int [2021-11-05 18:04:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~TO~int [2021-11-05 18:04:10,069 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_if_destroy [2021-11-05 18:04:10,069 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_if_destroy [2021-11-05 18:04:10,069 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_setup [2021-11-05 18:04:10,069 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_setup [2021-11-05 18:04:10,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 18:04:10,069 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_destroy_work [2021-11-05 18:04:10,069 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_destroy_work [2021-11-05 18:04:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-11-05 18:04:10,070 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-11-05 18:04:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 18:04:24,868 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 18:04:24,868 INFO L299 CfgBuilder]: Removed 3018 assume(true) statements. [2021-11-05 18:04:24,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 06:04:24 BoogieIcfgContainer [2021-11-05 18:04:24,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 18:04:24,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 18:04:24,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 18:04:24,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 18:04:24,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 06:04:06" (1/3) ... [2021-11-05 18:04:24,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fcf68e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 06:04:24, skipping insertion in model container [2021-11-05 18:04:24,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 06:04:08" (2/3) ... [2021-11-05 18:04:24,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fcf68e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 06:04:24, skipping insertion in model container [2021-11-05 18:04:24,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 06:04:24" (3/3) ... [2021-11-05 18:04:24,878 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i [2021-11-05 18:04:24,882 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 18:04:24,882 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-05 18:04:24,923 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 18:04:24,928 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 [2021-11-05 18:04:24,928 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-05 18:04:24,988 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) [2021-11-05 18:04:25,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-05 18:04:25,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:04:25,002 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] [2021-11-05 18:04:25,003 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 18:04:25,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:04:25,007 INFO L85 PathProgramCache]: Analyzing trace with hash -352933849, now seen corresponding path program 1 times [2021-11-05 18:04:25,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:04:25,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144262322] [2021-11-05 18:04:25,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:04:25,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:04:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:04:25,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:04:25,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:04:25,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144262322] [2021-11-05 18:04:25,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144262322] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:04:25,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:04:25,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 18:04:25,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310958074] [2021-11-05 18:04:25,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:04:25,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 18:04:25,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:04:25,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 18:04:25,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 18:04:25,498 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) [2021-11-05 18:04:25,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:04:25,640 INFO L93 Difference]: Finished difference Result 7668 states and 11583 transitions. [2021-11-05 18:04:25,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 18:04:25,643 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 [2021-11-05 18:04:25,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:04:25,679 INFO L225 Difference]: With dead ends: 7668 [2021-11-05 18:04:25,680 INFO L226 Difference]: Without dead ends: 3819 [2021-11-05 18:04:25,697 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 [2021-11-05 18:04:25,700 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, 10.28ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 18:04:25,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5655 Invalid, 0 Unknown, 0 Unchecked, 10.28ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 18:04:25,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3819 states. [2021-11-05 18:04:25,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3819 to 3819. [2021-11-05 18:04:25,839 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) [2021-11-05 18:04:25,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3819 states to 3819 states and 5625 transitions. [2021-11-05 18:04:25,855 INFO L78 Accepts]: Start accepts. Automaton has 3819 states and 5625 transitions. Word has length 127 [2021-11-05 18:04:25,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:04:25,856 INFO L470 AbstractCegarLoop]: Abstraction has 3819 states and 5625 transitions. [2021-11-05 18:04:25,856 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) [2021-11-05 18:04:25,856 INFO L276 IsEmpty]: Start isEmpty. Operand 3819 states and 5625 transitions. [2021-11-05 18:04:25,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-05 18:04:25,862 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:04:25,862 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] [2021-11-05 18:04:25,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 18:04:25,864 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 18:04:25,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:04:25,865 INFO L85 PathProgramCache]: Analyzing trace with hash 24647893, now seen corresponding path program 1 times [2021-11-05 18:04:25,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:04:25,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556603734] [2021-11-05 18:04:25,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:04:25,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:04:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:04:26,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:04:26,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:04:26,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556603734] [2021-11-05 18:04:26,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556603734] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:04:26,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:04:26,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 18:04:26,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566511144] [2021-11-05 18:04:26,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:04:26,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:04:26,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:04:26,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:04:26,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:04:26,482 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) [2021-11-05 18:04:26,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:04:26,739 INFO L93 Difference]: Finished difference Result 11241 states and 16686 transitions. [2021-11-05 18:04:26,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:04:26,739 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 [2021-11-05 18:04:26,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:04:26,776 INFO L225 Difference]: With dead ends: 11241 [2021-11-05 18:04:26,776 INFO L226 Difference]: Without dead ends: 7521 [2021-11-05 18:04:26,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.96ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:04:26,793 INFO L933 BasicCegarLoop]: 5664 mSDtfsCounter, 5493 mSDsluCounter, 5524 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5493 SdHoareTripleChecker+Valid, 11188 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.75ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.01ms IncrementalHoareTripleChecker+Time [2021-11-05 18:04:26,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5493 Valid, 11188 Invalid, 13 Unknown, 0 Unchecked, 22.75ms Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 35.01ms Time] [2021-11-05 18:04:26,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7521 states. [2021-11-05 18:04:26,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7521 to 7517. [2021-11-05 18:04:26,978 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) [2021-11-05 18:04:27,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7517 states to 7517 states and 11141 transitions. [2021-11-05 18:04:27,013 INFO L78 Accepts]: Start accepts. Automaton has 7517 states and 11141 transitions. Word has length 127 [2021-11-05 18:04:27,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:04:27,015 INFO L470 AbstractCegarLoop]: Abstraction has 7517 states and 11141 transitions. [2021-11-05 18:04:27,015 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) [2021-11-05 18:04:27,015 INFO L276 IsEmpty]: Start isEmpty. Operand 7517 states and 11141 transitions. [2021-11-05 18:04:27,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-05 18:04:27,025 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:04:27,025 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] [2021-11-05 18:04:27,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 18:04:27,026 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] === [2021-11-05 18:04:27,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:04:27,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1603353057, now seen corresponding path program 1 times [2021-11-05 18:04:27,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:04:27,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661199099] [2021-11-05 18:04:27,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:04:27,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:04:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:04:27,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:04:27,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:04:27,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661199099] [2021-11-05 18:04:27,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661199099] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:04:27,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:04:27,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:04:27,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652641008] [2021-11-05 18:04:27,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:04:27,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:04:27,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:04:27,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:04:27,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:04:27,294 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) [2021-11-05 18:04:27,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:04:27,762 INFO L93 Difference]: Finished difference Result 22171 states and 32943 transitions. [2021-11-05 18:04:27,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:04:27,763 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 [2021-11-05 18:04:27,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:04:27,838 INFO L225 Difference]: With dead ends: 22171 [2021-11-05 18:04:27,840 INFO L226 Difference]: Without dead ends: 14760 [2021-11-05 18:04:27,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:04:27,863 INFO L933 BasicCegarLoop]: 5673 mSDtfsCounter, 5501 mSDsluCounter, 5479 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5501 SdHoareTripleChecker+Valid, 11152 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.17ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.59ms IncrementalHoareTripleChecker+Time [2021-11-05 18:04:27,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5501 Valid, 11152 Invalid, 23 Unknown, 0 Unchecked, 18.17ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 74.59ms Time] [2021-11-05 18:04:27,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14760 states. [2021-11-05 18:04:28,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14760 to 14683. [2021-11-05 18:04:28,166 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) [2021-11-05 18:04:28,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14683 states to 14683 states and 21851 transitions. [2021-11-05 18:04:28,215 INFO L78 Accepts]: Start accepts. Automaton has 14683 states and 21851 transitions. Word has length 147 [2021-11-05 18:04:28,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:04:28,216 INFO L470 AbstractCegarLoop]: Abstraction has 14683 states and 21851 transitions. [2021-11-05 18:04:28,216 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) [2021-11-05 18:04:28,217 INFO L276 IsEmpty]: Start isEmpty. Operand 14683 states and 21851 transitions. [2021-11-05 18:04:28,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-05 18:04:28,223 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:04:28,224 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] [2021-11-05 18:04:28,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 18:04:28,224 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] === [2021-11-05 18:04:28,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:04:28,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1331533072, now seen corresponding path program 1 times [2021-11-05 18:04:28,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:04:28,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23428248] [2021-11-05 18:04:28,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:04:28,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:04:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:04:28,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:04:28,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:04:28,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23428248] [2021-11-05 18:04:28,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23428248] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:04:28,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:04:28,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 18:04:28,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286124330] [2021-11-05 18:04:28,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:04:28,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 18:04:28,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:04:28,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 18:04:28,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:04:28,451 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) [2021-11-05 18:04:28,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:04:28,933 INFO L93 Difference]: Finished difference Result 41105 states and 61485 transitions. [2021-11-05 18:04:28,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 18:04:28,934 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 [2021-11-05 18:04:28,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:04:29,016 INFO L225 Difference]: With dead ends: 41105 [2021-11-05 18:04:29,016 INFO L226 Difference]: Without dead ends: 26528 [2021-11-05 18:04:29,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.05ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 18:04:29,063 INFO L933 BasicCegarLoop]: 5779 mSDtfsCounter, 4657 mSDsluCounter, 5464 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4657 SdHoareTripleChecker+Valid, 11243 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.26ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.92ms IncrementalHoareTripleChecker+Time [2021-11-05 18:04:29,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4657 Valid, 11243 Invalid, 38 Unknown, 0 Unchecked, 15.26ms Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 87.92ms Time] [2021-11-05 18:04:29,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26528 states. [2021-11-05 18:04:29,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26528 to 26441. [2021-11-05 18:04:29,720 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) [2021-11-05 18:04:29,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26441 states to 26441 states and 39671 transitions. [2021-11-05 18:04:29,797 INFO L78 Accepts]: Start accepts. Automaton has 26441 states and 39671 transitions. Word has length 189 [2021-11-05 18:04:29,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:04:29,798 INFO L470 AbstractCegarLoop]: Abstraction has 26441 states and 39671 transitions. [2021-11-05 18:04:29,798 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) [2021-11-05 18:04:29,798 INFO L276 IsEmpty]: Start isEmpty. Operand 26441 states and 39671 transitions. [2021-11-05 18:04:29,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-05 18:04:29,804 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:04:29,804 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] [2021-11-05 18:04:29,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 18:04:29,804 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] === [2021-11-05 18:04:29,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:04:29,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1012464129, now seen corresponding path program 1 times [2021-11-05 18:04:29,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:04:29,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344913851] [2021-11-05 18:04:29,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:04:29,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:04:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:04:30,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-05 18:04:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:04:30,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-05 18:04:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:04:30,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-05 18:04:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:04:30,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:04:30,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:04:30,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344913851] [2021-11-05 18:04:30,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344913851] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:04:30,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:04:30,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 18:04:30,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271450686] [2021-11-05 18:04:30,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:04:30,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 18:04:30,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:04:30,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 18:04:30,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-05 18:04:30,390 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) [2021-11-05 18:04:31,646 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:04:33,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:04:36,560 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:04:42,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:04:44,755 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:04:47,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:04:51,224 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:04:53,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:04:58,013 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:05:02,006 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:05:06,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:05:06,820 INFO L93 Difference]: Finished difference Result 134945 states and 208475 transitions. [2021-11-05 18:05:06,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-05 18:05:06,821 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 [2021-11-05 18:05:06,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:05:07,210 INFO L225 Difference]: With dead ends: 134945 [2021-11-05 18:05:07,211 INFO L226 Difference]: Without dead ends: 108610 [2021-11-05 18:05:07,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 319.01ms TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-11-05 18:05:07,328 INFO L933 BasicCegarLoop]: 9418 mSDtfsCounter, 29555 mSDsluCounter, 28969 mSDsCounter, 0 mSdLazyCounter, 3382 mSolverCounterSat, 1084 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30884.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29595 SdHoareTripleChecker+Valid, 38387 SdHoareTripleChecker+Invalid, 4475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 155.94ms SdHoareTripleChecker+Time, 1084 IncrementalHoareTripleChecker+Valid, 3382 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33254.06ms IncrementalHoareTripleChecker+Time [2021-11-05 18:05:07,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29595 Valid, 38387 Invalid, 4475 Unknown, 0 Unchecked, 155.94ms Time], IncrementalHoareTripleChecker [1084 Valid, 3382 Invalid, 9 Unknown, 0 Unchecked, 33254.06ms Time] [2021-11-05 18:05:07,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108610 states. [2021-11-05 18:05:10,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108610 to 98341. [2021-11-05 18:05:10,193 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) [2021-11-05 18:05:10,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98341 states to 98341 states and 150383 transitions. [2021-11-05 18:05:10,921 INFO L78 Accepts]: Start accepts. Automaton has 98341 states and 150383 transitions. Word has length 190 [2021-11-05 18:05:10,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 18:05:10,922 INFO L470 AbstractCegarLoop]: Abstraction has 98341 states and 150383 transitions. [2021-11-05 18:05:10,922 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) [2021-11-05 18:05:10,922 INFO L276 IsEmpty]: Start isEmpty. Operand 98341 states and 150383 transitions. [2021-11-05 18:05:10,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-05 18:05:10,927 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 18:05:10,927 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] [2021-11-05 18:05:10,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 18:05:10,928 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] === [2021-11-05 18:05:10,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 18:05:10,929 INFO L85 PathProgramCache]: Analyzing trace with hash -965980761, now seen corresponding path program 1 times [2021-11-05 18:05:10,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 18:05:10,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019911270] [2021-11-05 18:05:10,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 18:05:10,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 18:05:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:05:11,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-05 18:05:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:05:11,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-05 18:05:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:05:11,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-05 18:05:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 18:05:11,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 18:05:11,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 18:05:11,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019911270] [2021-11-05 18:05:11,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019911270] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 18:05:11,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 18:05:11,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 18:05:11,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493456751] [2021-11-05 18:05:11,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 18:05:11,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 18:05:11,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 18:05:11,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 18:05:11,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-05 18:05:11,586 INFO L87 Difference]: Start difference. First operand 98341 states and 150383 transitions. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 6 states have internal predecessors, (183), 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) [2021-11-05 18:05:13,621 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:05:18,360 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:05:23,907 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:05:26,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 18:05:43,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 18:05:43,928 INFO L93 Difference]: Finished difference Result 611825 states and 1031643 transitions. [2021-11-05 18:05:43,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-05 18:05:43,928 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 6 states have internal predecessors, (183), 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 191 [2021-11-05 18:05:43,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 18:05:47,174 INFO L225 Difference]: With dead ends: 611825 [2021-11-05 18:05:47,174 INFO L226 Difference]: Without dead ends: 513590 [2021-11-05 18:05:48,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 265.93ms TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-11-05 18:05:48,346 INFO L933 BasicCegarLoop]: 9382 mSDtfsCounter, 27058 mSDsluCounter, 25120 mSDsCounter, 0 mSdLazyCounter, 2486 mSolverCounterSat, 1116 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14949.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27092 SdHoareTripleChecker+Valid, 34502 SdHoareTripleChecker+Invalid, 3606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 99.87ms SdHoareTripleChecker+Time, 1116 IncrementalHoareTripleChecker+Valid, 2486 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16231.85ms IncrementalHoareTripleChecker+Time [2021-11-05 18:05:48,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27092 Valid, 34502 Invalid, 3606 Unknown, 0 Unchecked, 99.87ms Time], IncrementalHoareTripleChecker [1116 Valid, 2486 Invalid, 4 Unknown, 0 Unchecked, 16231.85ms Time] [2021-11-05 18:05:48,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513590 states.