./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 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G --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-dev-7e70bad [2021-11-23 13:10:53,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:10:53,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:10:53,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:10:53,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:10:53,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:10:53,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:10:53,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:10:53,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:10:53,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:10:53,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:10:53,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:10:53,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:10:53,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:10:53,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:10:53,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:10:53,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:10:53,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:10:53,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:10:53,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:10:53,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:10:53,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:10:53,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:10:53,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:10:53,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:10:53,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:10:53,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:10:53,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:10:53,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:10:53,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:10:53,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:10:53,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:10:53,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:10:53,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:10:53,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:10:53,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:10:53,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:10:53,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:10:53,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:10:53,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:10:53,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:10:53,649 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 13:10:53,694 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:10:53,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:10:53,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:10:53,696 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:10:53,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:10:53,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:10:53,707 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:10:53,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:10:53,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:10:53,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:10:53,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:10:53,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:10:53,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:10:53,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:10:53,712 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:10:53,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:10:53,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:10:53,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:10:53,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:10:53,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:10:53,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:10:53,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:10:53,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:10:53,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:10:53,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:10:53,716 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:10:53,716 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:10:53,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:10:53,717 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:10:53,719 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3ff87c3e5fb8bea0460b71e9b9f7b5386599503dd506c0803db0e63f978b184 [2021-11-23 13:10:54,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:10:54,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:10:54,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:10:54,095 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:10:54,096 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:10:54,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/../../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 [2021-11-23 13:10:54,190 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/data/334f1df38/265e845ecaa84aaebf4222d6e93dd472/FLAGa76bef698 [2021-11-23 13:10:55,440 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:10:55,441 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/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 [2021-11-23 13:10:55,528 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/data/334f1df38/265e845ecaa84aaebf4222d6e93dd472/FLAGa76bef698 [2021-11-23 13:10:55,582 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/data/334f1df38/265e845ecaa84aaebf4222d6e93dd472 [2021-11-23 13:10:55,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:10:55,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:10:55,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:10:55,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:10:55,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:10:55,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:10:55" (1/1) ... [2021-11-23 13:10:55,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56df6ec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:10:55, skipping insertion in model container [2021-11-23 13:10:55,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:10:55" (1/1) ... [2021-11-23 13:10:55,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:10:55,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:10:59,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/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] [2021-11-23 13:10:59,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:11:00,028 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:11:00,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/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] [2021-11-23 13:11:00,897 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:11:01,125 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:11:01,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:01 WrapperNode [2021-11-23 13:11:01,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:11:01,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:11:01,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:11:01,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:11:01,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:01" (1/1) ... [2021-11-23 13:11:01,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:01" (1/1) ... [2021-11-23 13:11:01,886 INFO L137 Inliner]: procedures = 420, calls = 2205, calls flagged for inlining = 809, calls inlined = 1509, statements flattened = 18674 [2021-11-23 13:11:01,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:11:01,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:11:01,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:11:01,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:11:01,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:01" (1/1) ... [2021-11-23 13:11:01,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:01" (1/1) ... [2021-11-23 13:11:02,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:01" (1/1) ... [2021-11-23 13:11:02,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:01" (1/1) ... [2021-11-23 13:11:02,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:01" (1/1) ... [2021-11-23 13:11:02,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:01" (1/1) ... [2021-11-23 13:11:02,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:01" (1/1) ... [2021-11-23 13:11:02,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:11:02,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:11:02,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:11:02,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:11:02,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:01" (1/1) ... [2021-11-23 13:11:02,947 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:11:02,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:11:03,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:11:03,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:11:03,167 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_done [2021-11-23 13:11:03,167 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_done [2021-11-23 13:11:03,168 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-23 13:11:03,169 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_vport_destroy [2021-11-23 13:11:03,169 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_vport_destroy [2021-11-23 13:11:03,169 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ctlr_alloc [2021-11-23 13:11:03,169 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ctlr_alloc [2021-11-23 13:11:03,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:11:03,170 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_remove [2021-11-23 13:11:03,170 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_remove [2021-11-23 13:11:03,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 13:11:03,170 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_target [2021-11-23 13:11:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_target [2021-11-23 13:11:03,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 13:11:03,171 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_setup [2021-11-23 13:11:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_setup [2021-11-23 13:11:03,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:11:03,172 INFO L130 BoogieDeclarations]: Found specification of procedure _fcoe_create [2021-11-23 13:11:03,172 INFO L138 BoogieDeclarations]: Found implementation of procedure _fcoe_create [2021-11-23 13:11:03,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 13:11:03,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:11:03,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 13:11:03,173 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 13:11:03,173 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 13:11:03,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 13:11:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:11:03,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:11:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 13:11:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 13:11:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 13:11:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_17 [2021-11-23 13:11:03,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_17 [2021-11-23 13:11:03,178 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_create [2021-11-23 13:11:03,178 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_create [2021-11-23 13:11:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:11:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 13:11:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-11-23 13:11:03,179 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-11-23 13:11:03,179 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_cleanup [2021-11-23 13:11:03,180 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_cleanup [2021-11-23 13:11:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 13:11:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-11-23 13:11:03,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-11-23 13:11:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~TO~int [2021-11-23 13:11:03,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~TO~int [2021-11-23 13:11:03,195 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_if_destroy [2021-11-23 13:11:03,195 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_if_destroy [2021-11-23 13:11:03,196 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_setup [2021-11-23 13:11:03,196 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_setup [2021-11-23 13:11:03,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:11:03,197 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_destroy_work [2021-11-23 13:11:03,197 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_destroy_work [2021-11-23 13:11:03,197 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-11-23 13:11:03,197 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-11-23 13:11:03,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:11:04,897 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:11:04,899 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:11:28,662 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:11:28,709 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:11:28,709 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 13:11:28,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:11:28 BoogieIcfgContainer [2021-11-23 13:11:28,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:11:28,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:11:28,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:11:28,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:11:28,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:10:55" (1/3) ... [2021-11-23 13:11:28,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d71c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:11:28, skipping insertion in model container [2021-11-23 13:11:28,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:11:01" (2/3) ... [2021-11-23 13:11:28,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d71c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:11:28, skipping insertion in model container [2021-11-23 13:11:28,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:11:28" (3/3) ... [2021-11-23 13:11:28,729 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i [2021-11-23 13:11:28,737 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:11:28,737 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-23 13:11:28,835 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:11:28,857 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 13:11:28,867 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-23 13:11:28,986 INFO L276 IsEmpty]: Start isEmpty. Operand has 4055 states, 3992 states have (on average 1.4817134268537073) internal successors, (5915), 4001 states have internal predecessors, (5915), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-11-23 13:11:29,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-23 13:11:29,018 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:11:29,019 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] [2021-11-23 13:11:29,023 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:11:29,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:11:29,030 INFO L85 PathProgramCache]: Analyzing trace with hash 702175791, now seen corresponding path program 1 times [2021-11-23 13:11:29,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:11:29,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994302407] [2021-11-23 13:11:29,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:11:29,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:11:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:11:29,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:11:29,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:11:29,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994302407] [2021-11-23 13:11:29,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994302407] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:11:29,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:11:29,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:11:29,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803886892] [2021-11-23 13:11:29,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:11:29,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:11:29,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:11:29,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:11:29,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:11:29,967 INFO L87 Difference]: Start difference. First operand has 4055 states, 3992 states have (on average 1.4817134268537073) internal successors, (5915), 4001 states have internal predecessors, (5915), 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 64.0) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:11:30,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:11:30,285 INFO L93 Difference]: Finished difference Result 8103 states and 12018 transitions. [2021-11-23 13:11:30,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:11:30,291 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 64.0) internal successors, (128), 2 states have internal predecessors, (128), 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 128 [2021-11-23 13:11:30,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:11:30,353 INFO L225 Difference]: With dead ends: 8103 [2021-11-23 13:11:30,353 INFO L226 Difference]: Without dead ends: 4035 [2021-11-23 13:11:30,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:11:30,397 INFO L933 BasicCegarLoop]: 5871 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5871 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:11:30,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5871 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:11:30,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4035 states. [2021-11-23 13:11:30,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4035 to 4035. [2021-11-23 13:11:30,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4035 states, 3973 states have (on average 1.4495343569091366) internal successors, (5759), 3981 states have internal predecessors, (5759), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-11-23 13:11:30,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4035 states to 4035 states and 5841 transitions. [2021-11-23 13:11:30,706 INFO L78 Accepts]: Start accepts. Automaton has 4035 states and 5841 transitions. Word has length 128 [2021-11-23 13:11:30,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:11:30,707 INFO L470 AbstractCegarLoop]: Abstraction has 4035 states and 5841 transitions. [2021-11-23 13:11:30,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 64.0) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:11:30,708 INFO L276 IsEmpty]: Start isEmpty. Operand 4035 states and 5841 transitions. [2021-11-23 13:11:30,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-23 13:11:30,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:11:30,718 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] [2021-11-23 13:11:30,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:11:30,719 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:11:30,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:11:30,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1806797123, now seen corresponding path program 1 times [2021-11-23 13:11:30,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:11:30,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51129681] [2021-11-23 13:11:30,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:11:30,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:11:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:11:31,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:11:31,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:11:31,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51129681] [2021-11-23 13:11:31,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51129681] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:11:31,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:11:31,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:11:31,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303657276] [2021-11-23 13:11:31,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:11:31,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:11:31,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:11:31,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:11:31,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:11:31,793 INFO L87 Difference]: Start difference. First operand 4035 states and 5841 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:11:32,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:11:32,345 INFO L93 Difference]: Finished difference Result 11889 states and 17334 transitions. [2021-11-23 13:11:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:11:32,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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 128 [2021-11-23 13:11:32,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:11:32,421 INFO L225 Difference]: With dead ends: 11889 [2021-11-23 13:11:32,422 INFO L226 Difference]: Without dead ends: 7952 [2021-11-23 13:11:32,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:11:32,443 INFO L933 BasicCegarLoop]: 5887 mSDtfsCounter, 5708 mSDsluCounter, 5740 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5708 SdHoareTripleChecker+Valid, 11627 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:11:32,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5708 Valid, 11627 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:11:32,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7952 states. [2021-11-23 13:11:32,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7952 to 7948. [2021-11-23 13:11:32,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7948 states, 7827 states have (on average 1.4535581959882458) internal successors, (11377), 7842 states have internal predecessors, (11377), 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) [2021-11-23 13:11:32,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7948 states to 7948 states and 11572 transitions. [2021-11-23 13:11:32,851 INFO L78 Accepts]: Start accepts. Automaton has 7948 states and 11572 transitions. Word has length 128 [2021-11-23 13:11:32,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:11:32,852 INFO L470 AbstractCegarLoop]: Abstraction has 7948 states and 11572 transitions. [2021-11-23 13:11:32,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:11:32,853 INFO L276 IsEmpty]: Start isEmpty. Operand 7948 states and 11572 transitions. [2021-11-23 13:11:32,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-23 13:11:32,862 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:11:32,862 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:11:32,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:11:32,863 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] === [2021-11-23 13:11:32,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:11:32,864 INFO L85 PathProgramCache]: Analyzing trace with hash 874382921, now seen corresponding path program 1 times [2021-11-23 13:11:32,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:11:32,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970739664] [2021-11-23 13:11:32,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:11:32,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:11:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:11:33,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:11:33,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:11:33,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970739664] [2021-11-23 13:11:33,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970739664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:11:33,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:11:33,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:11:33,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075824063] [2021-11-23 13:11:33,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:11:33,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:11:33,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:11:33,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:11:33,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:11:33,473 INFO L87 Difference]: Start difference. First operand 7948 states and 11572 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2021-11-23 13:11:34,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:11:34,300 INFO L93 Difference]: Finished difference Result 23448 states and 34220 transitions. [2021-11-23 13:11:34,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:11:34,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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 148 [2021-11-23 13:11:34,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:11:34,476 INFO L225 Difference]: With dead ends: 23448 [2021-11-23 13:11:34,478 INFO L226 Difference]: Without dead ends: 15606 [2021-11-23 13:11:34,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:11:34,529 INFO L933 BasicCegarLoop]: 5889 mSDtfsCounter, 5709 mSDsluCounter, 5695 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5709 SdHoareTripleChecker+Valid, 11584 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:11:34,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5709 Valid, 11584 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:11:34,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15606 states. [2021-11-23 13:11:35,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15606 to 15528. [2021-11-23 13:11:35,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15528 states, 15293 states have (on average 1.4592297129405611) internal successors, (22316), 15322 states have internal predecessors, (22316), 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) [2021-11-23 13:11:35,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15528 states to 15528 states and 22696 transitions. [2021-11-23 13:11:35,599 INFO L78 Accepts]: Start accepts. Automaton has 15528 states and 22696 transitions. Word has length 148 [2021-11-23 13:11:35,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:11:35,600 INFO L470 AbstractCegarLoop]: Abstraction has 15528 states and 22696 transitions. [2021-11-23 13:11:35,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2021-11-23 13:11:35,601 INFO L276 IsEmpty]: Start isEmpty. Operand 15528 states and 22696 transitions. [2021-11-23 13:11:35,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-23 13:11:35,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:11:35,615 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, 1] [2021-11-23 13:11:35,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 13:11:35,616 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] === [2021-11-23 13:11:35,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:11:35,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1431970715, now seen corresponding path program 1 times [2021-11-23 13:11:35,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:11:35,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043842398] [2021-11-23 13:11:35,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:11:35,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:11:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:11:36,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:11:36,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:11:36,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043842398] [2021-11-23 13:11:36,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043842398] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:11:36,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:11:36,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:11:36,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988690545] [2021-11-23 13:11:36,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:11:36,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:11:36,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:11:36,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:11:36,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:11:36,132 INFO L87 Difference]: Start difference. First operand 15528 states and 22696 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2021-11-23 13:11:37,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:11:37,134 INFO L93 Difference]: Finished difference Result 43550 states and 63930 transitions. [2021-11-23 13:11:37,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:11:37,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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 193 [2021-11-23 13:11:37,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:11:37,293 INFO L225 Difference]: With dead ends: 43550 [2021-11-23 13:11:37,294 INFO L226 Difference]: Without dead ends: 28128 [2021-11-23 13:11:37,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:11:37,367 INFO L933 BasicCegarLoop]: 6003 mSDtfsCounter, 4850 mSDsluCounter, 5680 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4850 SdHoareTripleChecker+Valid, 11683 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:11:37,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4850 Valid, 11683 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:11:37,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28128 states. [2021-11-23 13:11:38,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28128 to 28040. [2021-11-23 13:11:38,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28040 states, 27577 states have (on average 1.4693403923559487) internal successors, (40520), 27634 states have internal predecessors, (40520), 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) [2021-11-23 13:11:39,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28040 states to 28040 states and 41270 transitions. [2021-11-23 13:11:39,044 INFO L78 Accepts]: Start accepts. Automaton has 28040 states and 41270 transitions. Word has length 193 [2021-11-23 13:11:39,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:11:39,050 INFO L470 AbstractCegarLoop]: Abstraction has 28040 states and 41270 transitions. [2021-11-23 13:11:39,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2021-11-23 13:11:39,052 INFO L276 IsEmpty]: Start isEmpty. Operand 28040 states and 41270 transitions. [2021-11-23 13:11:39,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-23 13:11:39,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:11:39,067 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:11:39,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 13:11:39,068 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] === [2021-11-23 13:11:39,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:11:39,080 INFO L85 PathProgramCache]: Analyzing trace with hash 230462710, now seen corresponding path program 1 times [2021-11-23 13:11:39,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:11:39,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737602270] [2021-11-23 13:11:39,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:11:39,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:11:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:11:39,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-23 13:11:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:11:39,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-23 13:11:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:11:39,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-23 13:11:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:11:40,042 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:11:40,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:11:40,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737602270] [2021-11-23 13:11:40,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737602270] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:11:40,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325580955] [2021-11-23 13:11:40,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:11:40,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:11:40,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:11:40,046 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:11:40,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 13:11:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:11:42,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 4990 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:11:42,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:11:42,699 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 13:11:42,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:11:42,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325580955] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:11:42,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:11:42,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-23 13:11:42,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549170068] [2021-11-23 13:11:42,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:11:42,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:11:42,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:11:42,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:11:42,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:11:42,704 INFO L87 Difference]: Start difference. First operand 28040 states and 41270 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 13:11:43,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:11:43,964 INFO L93 Difference]: Finished difference Result 55638 states and 82129 transitions. [2021-11-23 13:11:43,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:11:43,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 214 [2021-11-23 13:11:43,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:11:44,114 INFO L225 Difference]: With dead ends: 55638 [2021-11-23 13:11:44,115 INFO L226 Difference]: Without dead ends: 27704 [2021-11-23 13:11:44,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:11:44,348 INFO L933 BasicCegarLoop]: 5754 mSDtfsCounter, 0 mSDsluCounter, 5748 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11502 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:11:44,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11502 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:11:44,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27704 states. [2021-11-23 13:11:45,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27704 to 27704. [2021-11-23 13:11:45,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27704 states, 27241 states have (on average 1.4627950515766674) internal successors, (39848), 27298 states have internal predecessors, (39848), 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) [2021-11-23 13:11:45,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27704 states to 27704 states and 40598 transitions. [2021-11-23 13:11:45,364 INFO L78 Accepts]: Start accepts. Automaton has 27704 states and 40598 transitions. Word has length 214 [2021-11-23 13:11:45,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:11:45,365 INFO L470 AbstractCegarLoop]: Abstraction has 27704 states and 40598 transitions. [2021-11-23 13:11:45,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 13:11:45,365 INFO L276 IsEmpty]: Start isEmpty. Operand 27704 states and 40598 transitions. [2021-11-23 13:11:45,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-23 13:11:45,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:11:45,379 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:11:45,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-23 13:11:45,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:11:45,748 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] === [2021-11-23 13:11:45,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:11:45,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1957474036, now seen corresponding path program 1 times [2021-11-23 13:11:45,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:11:45,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406680128] [2021-11-23 13:11:45,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:11:45,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:11:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:11:46,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-23 13:11:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:11:46,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-23 13:11:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:11:46,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-23 13:11:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:11:47,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:11:47,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:11:47,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406680128] [2021-11-23 13:11:47,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406680128] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:11:47,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:11:47,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 13:11:47,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965703692] [2021-11-23 13:11:47,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:11:47,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 13:11:47,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:11:47,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 13:11:47,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:11:47,017 INFO L87 Difference]: Start difference. First operand 27704 states and 40598 transitions. Second operand has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 6 states have internal predecessors, (191), 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) [2021-11-23 13:11:55,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:12:00,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:12:10,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:12:10,502 INFO L93 Difference]: Finished difference Result 138210 states and 207708 transitions. [2021-11-23 13:12:10,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 13:12:10,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 6 states have internal predecessors, (191), 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 199 [2021-11-23 13:12:10,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:12:11,481 INFO L225 Difference]: With dead ends: 138210 [2021-11-23 13:12:11,481 INFO L226 Difference]: Without dead ends: 110612 [2021-11-23 13:12:11,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:12:11,650 INFO L933 BasicCegarLoop]: 9498 mSDtfsCounter, 20748 mSDsluCounter, 29035 mSDsCounter, 0 mSdLazyCounter, 2594 mSolverCounterSat, 889 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20783 SdHoareTripleChecker+Valid, 38533 SdHoareTripleChecker+Invalid, 3485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 889 IncrementalHoareTripleChecker+Valid, 2594 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2021-11-23 13:12:11,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20783 Valid, 38533 Invalid, 3485 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [889 Valid, 2594 Invalid, 2 Unknown, 0 Unchecked, 17.8s Time] [2021-11-23 13:12:11,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110612 states. [2021-11-23 13:12:16,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110612 to 100486. [2021-11-23 13:12:16,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100486 states, 98483 states have (on average 1.4488388858990893) internal successors, (142686), 98708 states have internal predecessors, (142686), 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) [2021-11-23 13:12:17,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100486 states to 100486 states and 149504 transitions. [2021-11-23 13:12:17,774 INFO L78 Accepts]: Start accepts. Automaton has 100486 states and 149504 transitions. Word has length 199 [2021-11-23 13:12:17,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:12:17,775 INFO L470 AbstractCegarLoop]: Abstraction has 100486 states and 149504 transitions. [2021-11-23 13:12:17,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 6 states have internal predecessors, (191), 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) [2021-11-23 13:12:17,776 INFO L276 IsEmpty]: Start isEmpty. Operand 100486 states and 149504 transitions. [2021-11-23 13:12:17,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-23 13:12:17,790 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:12:17,791 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:12:17,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 13:12:17,791 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:12:17,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:12:17,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1321407573, now seen corresponding path program 1 times [2021-11-23 13:12:17,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:12:17,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998981815] [2021-11-23 13:12:17,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:12:17,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:12:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:12:18,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-23 13:12:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:12:18,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-23 13:12:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:12:18,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-23 13:12:18,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:12:19,041 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:12:19,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:12:19,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998981815] [2021-11-23 13:12:19,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998981815] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:12:19,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684789842] [2021-11-23 13:12:19,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:12:19,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:12:19,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:12:19,045 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:12:19,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 13:12:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:12:20,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 4991 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:12:20,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:12:21,390 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 13:12:21,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:12:21,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684789842] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:12:21,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:12:21,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-23 13:12:21,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098657291] [2021-11-23 13:12:21,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:12:21,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:12:21,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:12:21,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:12:21,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:12:21,397 INFO L87 Difference]: Start difference. First operand 100486 states and 149504 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 13:12:26,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:12:26,311 INFO L93 Difference]: Finished difference Result 200650 states and 303909 transitions. [2021-11-23 13:12:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:12:26,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 215 [2021-11-23 13:12:26,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:12:26,858 INFO L225 Difference]: With dead ends: 200650 [2021-11-23 13:12:26,859 INFO L226 Difference]: Without dead ends: 100270 [2021-11-23 13:12:28,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:12:28,161 INFO L933 BasicCegarLoop]: 5751 mSDtfsCounter, 38 mSDsluCounter, 5711 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 11462 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:12:28,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 11462 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:12:28,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100270 states. [2021-11-23 13:12:32,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100270 to 100270. [2021-11-23 13:12:32,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100270 states, 98267 states have (on average 1.4483600801896872) internal successors, (142326), 98492 states have internal predecessors, (142326), 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) [2021-11-23 13:12:33,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100270 states to 100270 states and 149144 transitions. [2021-11-23 13:12:33,473 INFO L78 Accepts]: Start accepts. Automaton has 100270 states and 149144 transitions. Word has length 215 [2021-11-23 13:12:33,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:12:33,474 INFO L470 AbstractCegarLoop]: Abstraction has 100270 states and 149144 transitions. [2021-11-23 13:12:33,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-23 13:12:33,475 INFO L276 IsEmpty]: Start isEmpty. Operand 100270 states and 149144 transitions. [2021-11-23 13:12:33,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-23 13:12:33,492 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:12:33,492 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, 1, 1, 1, 1, 1, 1] [2021-11-23 13:12:33,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-23 13:12:33,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c03c599a-fc08-4da0-bdc1-f04bd27b0185/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-23 13:12:33,708 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:12:33,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:12:33,708 INFO L85 PathProgramCache]: Analyzing trace with hash -189931429, now seen corresponding path program 1 times [2021-11-23 13:12:33,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:12:33,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406177910] [2021-11-23 13:12:33,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:12:33,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:12:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:12:34,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-23 13:12:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:12:34,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-23 13:12:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:12:34,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-23 13:12:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:12:34,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:12:34,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:12:34,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406177910] [2021-11-23 13:12:34,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406177910] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:12:34,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:12:34,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 13:12:34,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015736645] [2021-11-23 13:12:34,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:12:34,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 13:12:34,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:12:34,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 13:12:34,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:12:34,743 INFO L87 Difference]: Start difference. First operand 100270 states and 149144 transitions. Second operand has 7 states, 7 states have (on average 27.142857142857142) internal successors, (190), 6 states have internal predecessors, (190), 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) [2021-11-23 13:12:38,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:12:45,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:12:56,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:13:03,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []