./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4567f745-d207-4506-82a0-75a24e9cb9ae/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4567f745-d207-4506-82a0-75a24e9cb9ae/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4567f745-d207-4506-82a0-75a24e9cb9ae/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4567f745-d207-4506-82a0-75a24e9cb9ae/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4567f745-d207-4506-82a0-75a24e9cb9ae/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4567f745-d207-4506-82a0-75a24e9cb9ae/bin/uautomizer-w2VwFs6gM0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b09307eff68471b13f9f4af8ca37265160c175233f57a4afa3e4fdd6d6503a6b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:01:46,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:01:46,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:01:46,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:01:46,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:01:46,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:01:46,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:01:46,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:01:46,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:01:46,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:01:46,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:01:46,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:01:46,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:01:46,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:01:46,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:01:46,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:01:46,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:01:46,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:01:46,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:01:46,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:01:46,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:01:46,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:01:46,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:01:46,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:01:46,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:01:46,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:01:46,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:01:46,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:01:46,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:01:46,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:01:46,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:01:46,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:01:46,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:01:46,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:01:46,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:01:46,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:01:46,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:01:46,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:01:46,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:01:46,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:01:46,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:01:46,495 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4567f745-d207-4506-82a0-75a24e9cb9ae/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 15:01:46,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:01:46,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:01:46,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:01:46,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:01:46,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:01:46,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:01:46,549 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:01:46,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:01:46,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:01:46,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:01:46,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:01:46,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:01:46,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:01:46,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:01:46,551 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:01:46,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:01:46,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:01:46,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:01:46,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:01:46,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:01:46,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:01:46,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:01:46,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:01:46,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:01:46,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:01:46,554 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:01:46,554 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:01:46,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:01:46,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:01:46,555 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_4567f745-d207-4506-82a0-75a24e9cb9ae/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4567f745-d207-4506-82a0-75a24e9cb9ae/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b09307eff68471b13f9f4af8ca37265160c175233f57a4afa3e4fdd6d6503a6b [2021-11-22 15:01:46,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:01:46,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:01:46,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:01:46,872 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:01:46,874 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:01:46,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4567f745-d207-4506-82a0-75a24e9cb9ae/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i [2021-11-22 15:01:46,950 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4567f745-d207-4506-82a0-75a24e9cb9ae/bin/uautomizer-w2VwFs6gM0/data/02a39f3a8/152dac26ad644af293e16d942e909fbb/FLAG2a9cc9442 [2021-11-22 15:01:47,934 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:01:47,935 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4567f745-d207-4506-82a0-75a24e9cb9ae/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i [2021-11-22 15:01:48,010 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4567f745-d207-4506-82a0-75a24e9cb9ae/bin/uautomizer-w2VwFs6gM0/data/02a39f3a8/152dac26ad644af293e16d942e909fbb/FLAG2a9cc9442 [2021-11-22 15:01:48,299 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4567f745-d207-4506-82a0-75a24e9cb9ae/bin/uautomizer-w2VwFs6gM0/data/02a39f3a8/152dac26ad644af293e16d942e909fbb [2021-11-22 15:01:48,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:01:48,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:01:48,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:01:48,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:01:48,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:01:48,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:01:48" (1/1) ... [2021-11-22 15:01:48,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1a092a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:48, skipping insertion in model container [2021-11-22 15:01:48,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:01:48" (1/1) ... [2021-11-22 15:01:48,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:01:48,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:01:52,367 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_4567f745-d207-4506-82a0-75a24e9cb9ae/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i[416808,416821] [2021-11-22 15:01:52,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:01:52,498 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:01:53,182 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_4567f745-d207-4506-82a0-75a24e9cb9ae/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i[416808,416821] [2021-11-22 15:01:53,196 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:01:53,429 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:01:53,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:53 WrapperNode [2021-11-22 15:01:53,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:01:53,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:01:53,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:01:53,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:01:53,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:53" (1/1) ... [2021-11-22 15:01:53,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:53" (1/1) ... [2021-11-22 15:01:54,207 INFO L137 Inliner]: procedures = 426, calls = 2211, calls flagged for inlining = 823, calls inlined = 1562, statements flattened = 18751 [2021-11-22 15:01:54,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:01:54,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:01:54,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:01:54,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:01:54,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:53" (1/1) ... [2021-11-22 15:01:54,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:53" (1/1) ... [2021-11-22 15:01:54,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:53" (1/1) ... [2021-11-22 15:01:54,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:53" (1/1) ... [2021-11-22 15:01:54,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:53" (1/1) ... [2021-11-22 15:01:54,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:53" (1/1) ... [2021-11-22 15:01:54,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:53" (1/1) ... [2021-11-22 15:01:55,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:01:55,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:01:55,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:01:55,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:01:55,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:53" (1/1) ... [2021-11-22 15:01:55,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:01:55,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4567f745-d207-4506-82a0-75a24e9cb9ae/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:01:55,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4567f745-d207-4506-82a0-75a24e9cb9ae/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:01:55,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4567f745-d207-4506-82a0-75a24e9cb9ae/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:01:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_done [2021-11-22 15:01:55,284 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_done [2021-11-22 15:01:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-22 15:01:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_vport_destroy [2021-11-22 15:01:55,286 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_vport_destroy [2021-11-22 15:01:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ctlr_alloc [2021-11-22 15:01:55,287 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ctlr_alloc [2021-11-22 15:01:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:01:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_remove [2021-11-22 15:01:55,287 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_remove [2021-11-22 15:01:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 15:01:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_target [2021-11-22 15:01:55,288 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_target [2021-11-22 15:01:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 15:01:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_setup [2021-11-22 15:01:55,289 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_setup [2021-11-22 15:01:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 15:01:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure _fcoe_create [2021-11-22 15:01:55,289 INFO L138 BoogieDeclarations]: Found implementation of procedure _fcoe_create [2021-11-22 15:01:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 15:01:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:01:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 15:01:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-22 15:01:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-22 15:01:55,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-22 15:01:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:01:55,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:01:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 15:01:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 15:01:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-22 15:01:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_create [2021-11-22 15:01:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_create [2021-11-22 15:01:55,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:01:55,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 15:01:55,293 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-11-22 15:01:55,293 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-11-22 15:01:55,294 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_cleanup [2021-11-22 15:01:55,294 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_cleanup [2021-11-22 15:01:55,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 15:01:55,294 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-11-22 15:01:55,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2021-11-22 15:01:55,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_46 [2021-11-22 15:01:55,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_46 [2021-11-22 15:01:55,296 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~TO~int [2021-11-22 15:01:55,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~TO~int [2021-11-22 15:01:55,296 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_if_destroy [2021-11-22 15:01:55,296 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_if_destroy [2021-11-22 15:01:55,297 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_setup [2021-11-22 15:01:55,297 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_setup [2021-11-22 15:01:55,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 15:01:55,297 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_destroy_work [2021-11-22 15:01:55,297 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_destroy_work [2021-11-22 15:01:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-11-22 15:01:55,298 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-11-22 15:01:55,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:01:56,949 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:01:56,952 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:02:15,617 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:02:15,675 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:02:15,676 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 15:02:15,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:02:15 BoogieIcfgContainer [2021-11-22 15:02:15,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:02:15,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:02:15,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:02:15,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:02:15,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:01:48" (1/3) ... [2021-11-22 15:02:15,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@291094b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:02:15, skipping insertion in model container [2021-11-22 15:02:15,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:01:53" (2/3) ... [2021-11-22 15:02:15,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@291094b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:02:15, skipping insertion in model container [2021-11-22 15:02:15,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:02:15" (3/3) ... [2021-11-22 15:02:15,697 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i [2021-11-22 15:02:15,713 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:02:15,713 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-22 15:02:15,803 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:02:15,812 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 [2021-11-22 15:02:15,814 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-22 15:02:15,914 INFO L276 IsEmpty]: Start isEmpty. Operand has 4097 states, 4034 states have (on average 1.4747149231531977) internal successors, (5949), 4043 states have internal predecessors, (5949), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-11-22 15:02:15,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-22 15:02:15,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:02:15,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:02:15,958 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION === [_fcoe_createErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:02:15,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:02:15,964 INFO L85 PathProgramCache]: Analyzing trace with hash -82730235, now seen corresponding path program 1 times [2021-11-22 15:02:15,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:02:15,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672586069] [2021-11-22 15:02:15,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:02:15,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:02:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:02:16,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:02:16,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:02:16,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672586069] [2021-11-22 15:02:16,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672586069] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:02:16,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:02:16,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:02:16,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915126987] [2021-11-22 15:02:16,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:02:16,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 15:02:16,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:02:16,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 15:02:16,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:02:16,911 INFO L87 Difference]: Start difference. First operand has 4097 states, 4034 states have (on average 1.4747149231531977) internal successors, (5949), 4043 states have internal predecessors, (5949), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:17,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:02:17,255 INFO L93 Difference]: Finished difference Result 8187 states and 12086 transitions. [2021-11-22 15:02:17,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 15:02:17,258 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2021-11-22 15:02:17,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:02:17,303 INFO L225 Difference]: With dead ends: 8187 [2021-11-22 15:02:17,303 INFO L226 Difference]: Without dead ends: 4070 [2021-11-22 15:02:17,326 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 [2021-11-22 15:02:17,331 INFO L933 BasicCegarLoop]: 5907 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5907 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:02:17,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5907 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:02:17,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4070 states. [2021-11-22 15:02:17,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4070 to 4070. [2021-11-22 15:02:17,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4070 states, 4008 states have (on average 1.4441117764471059) internal successors, (5788), 4017 states have internal predecessors, (5788), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-22 15:02:17,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4070 states to 4070 states and 5869 transitions. [2021-11-22 15:02:17,611 INFO L78 Accepts]: Start accepts. Automaton has 4070 states and 5869 transitions. Word has length 161 [2021-11-22 15:02:17,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:02:17,612 INFO L470 AbstractCegarLoop]: Abstraction has 4070 states and 5869 transitions. [2021-11-22 15:02:17,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:17,615 INFO L276 IsEmpty]: Start isEmpty. Operand 4070 states and 5869 transitions. [2021-11-22 15:02:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-22 15:02:17,635 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:02:17,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:02:17,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:02:17,636 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION === [_fcoe_createErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:02:17,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:02:17,640 INFO L85 PathProgramCache]: Analyzing trace with hash -191808593, now seen corresponding path program 1 times [2021-11-22 15:02:17,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:02:17,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969943912] [2021-11-22 15:02:17,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:02:17,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:02:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:02:18,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:02:18,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:02:18,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969943912] [2021-11-22 15:02:18,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969943912] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:02:18,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:02:18,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:02:18,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280346696] [2021-11-22 15:02:18,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:02:18,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:02:18,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:02:18,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:02:18,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:02:18,261 INFO L87 Difference]: Start difference. First operand 4070 states and 5869 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:18,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:02:18,741 INFO L93 Difference]: Finished difference Result 11283 states and 16371 transitions. [2021-11-22 15:02:18,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:02:18,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2021-11-22 15:02:18,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:02:18,799 INFO L225 Difference]: With dead ends: 11283 [2021-11-22 15:02:18,799 INFO L226 Difference]: Without dead ends: 7319 [2021-11-22 15:02:18,813 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 [2021-11-22 15:02:18,816 INFO L933 BasicCegarLoop]: 5911 mSDtfsCounter, 4875 mSDsluCounter, 5708 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4875 SdHoareTripleChecker+Valid, 11619 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:02:18,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4875 Valid, 11619 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:02:18,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7319 states. [2021-11-22 15:02:19,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7319 to 7279. [2021-11-22 15:02:19,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7279 states, 7159 states have (on average 1.4566280206732785) internal successors, (10428), 7175 states have internal predecessors, (10428), 81 states have call successors, (81), 36 states have call predecessors, (81), 36 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2021-11-22 15:02:19,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7279 states to 7279 states and 10588 transitions. [2021-11-22 15:02:19,138 INFO L78 Accepts]: Start accepts. Automaton has 7279 states and 10588 transitions. Word has length 161 [2021-11-22 15:02:19,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:02:19,142 INFO L470 AbstractCegarLoop]: Abstraction has 7279 states and 10588 transitions. [2021-11-22 15:02:19,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:02:19,143 INFO L276 IsEmpty]: Start isEmpty. Operand 7279 states and 10588 transitions. [2021-11-22 15:02:19,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-22 15:02:19,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:02:19,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:02:19,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:02:19,157 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION === [_fcoe_createErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:02:19,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:02:19,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1171453816, now seen corresponding path program 1 times [2021-11-22 15:02:19,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:02:19,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145199928] [2021-11-22 15:02:19,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:02:19,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:02:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:02:20,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-22 15:02:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:02:20,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:02:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:02:20,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:02:20,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:02:20,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145199928] [2021-11-22 15:02:20,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145199928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:02:20,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:02:20,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 15:02:20,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568618466] [2021-11-22 15:02:20,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:02:20,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:02:20,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:02:20,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:02:20,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:02:20,298 INFO L87 Difference]: Start difference. First operand 7279 states and 10588 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-22 15:02:26,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 15:02:31,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 15:02:33,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:02:33,625 INFO L93 Difference]: Finished difference Result 26329 states and 38770 transitions. [2021-11-22 15:02:33,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 15:02:33,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 184 [2021-11-22 15:02:33,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:02:33,823 INFO L225 Difference]: With dead ends: 26329 [2021-11-22 15:02:33,824 INFO L226 Difference]: Without dead ends: 19156 [2021-11-22 15:02:33,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-22 15:02:33,879 INFO L933 BasicCegarLoop]: 5897 mSDtfsCounter, 13297 mSDsluCounter, 18933 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 435 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13306 SdHoareTripleChecker+Valid, 24830 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2021-11-22 15:02:33,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13306 Valid, 24830 Invalid, 1463 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [435 Valid, 1026 Invalid, 2 Unknown, 0 Unchecked, 11.5s Time] [2021-11-22 15:02:33,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19156 states. [2021-11-22 15:02:34,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19156 to 18416. [2021-11-22 15:02:35,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18416 states, 18101 states have (on average 1.4566046074802497) internal successors, (26366), 18131 states have internal predecessors, (26366), 188 states have call successors, (188), 72 states have call predecessors, (188), 124 states have return successors, (429), 250 states have call predecessors, (429), 184 states have call successors, (429) [2021-11-22 15:02:35,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18416 states to 18416 states and 26983 transitions. [2021-11-22 15:02:35,143 INFO L78 Accepts]: Start accepts. Automaton has 18416 states and 26983 transitions. Word has length 184 [2021-11-22 15:02:35,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:02:35,145 INFO L470 AbstractCegarLoop]: Abstraction has 18416 states and 26983 transitions. [2021-11-22 15:02:35,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-22 15:02:35,147 INFO L276 IsEmpty]: Start isEmpty. Operand 18416 states and 26983 transitions. [2021-11-22 15:02:35,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-22 15:02:35,161 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:02:35,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:02:35,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 15:02:35,162 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION === [_fcoe_createErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:02:35,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:02:35,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1796650106, now seen corresponding path program 1 times [2021-11-22 15:02:35,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:02:35,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089548042] [2021-11-22 15:02:35,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:02:35,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:02:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:02:35,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-22 15:02:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:02:35,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:02:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:02:35,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:02:35,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:02:35,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089548042] [2021-11-22 15:02:35,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089548042] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:02:35,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:02:35,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 15:02:35,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270099790] [2021-11-22 15:02:35,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:02:36,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:02:36,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:02:36,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:02:36,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:02:36,001 INFO L87 Difference]: Start difference. First operand 18416 states and 26983 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-22 15:02:39,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 15:02:46,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 15:02:49,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 15:02:54,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 15:02:56,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:02:56,528 INFO L93 Difference]: Finished difference Result 72358 states and 108924 transitions. [2021-11-22 15:02:56,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 15:02:56,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 184 [2021-11-22 15:02:56,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:02:56,866 INFO L225 Difference]: With dead ends: 72358 [2021-11-22 15:02:56,866 INFO L226 Difference]: Without dead ends: 54048 [2021-11-22 15:02:57,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-22 15:02:57,034 INFO L933 BasicCegarLoop]: 5867 mSDtfsCounter, 22654 mSDsluCounter, 16469 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 607 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22663 SdHoareTripleChecker+Valid, 22336 SdHoareTripleChecker+Invalid, 2138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 607 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:02:57,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22663 Valid, 22336 Invalid, 2138 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [607 Valid, 1527 Invalid, 4 Unknown, 0 Unchecked, 18.1s Time] [2021-11-22 15:02:57,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54048 states. [2021-11-22 15:02:59,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54048 to 52586. [2021-11-22 15:02:59,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52586 states, 51651 states have (on average 1.4552089988577182) internal successors, (75163), 51701 states have internal predecessors, (75163), 476 states have call successors, (476), 144 states have call predecessors, (476), 456 states have return successors, (2801), 868 states have call predecessors, (2801), 468 states have call successors, (2801) [2021-11-22 15:02:59,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52586 states to 52586 states and 78440 transitions. [2021-11-22 15:02:59,969 INFO L78 Accepts]: Start accepts. Automaton has 52586 states and 78440 transitions. Word has length 184 [2021-11-22 15:02:59,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:02:59,970 INFO L470 AbstractCegarLoop]: Abstraction has 52586 states and 78440 transitions. [2021-11-22 15:02:59,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-22 15:02:59,970 INFO L276 IsEmpty]: Start isEmpty. Operand 52586 states and 78440 transitions. [2021-11-22 15:02:59,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-22 15:02:59,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:02:59,982 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] [2021-11-22 15:02:59,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 15:02:59,984 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION === [_fcoe_createErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:02:59,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:02:59,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1392910101, now seen corresponding path program 1 times [2021-11-22 15:02:59,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:02:59,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659775054] [2021-11-22 15:02:59,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:02:59,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:03:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:03:00,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-22 15:03:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:03:01,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:03:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:03:01,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:03:01,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:03:01,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659775054] [2021-11-22 15:03:01,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659775054] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:03:01,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:03:01,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 15:03:01,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765538091] [2021-11-22 15:03:01,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:03:01,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:03:01,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:03:01,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:03:01,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:03:01,158 INFO L87 Difference]: Start difference. First operand 52586 states and 78440 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-22 15:03:04,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 15:03:10,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 15:03:13,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 15:03:17,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 15:03:21,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 15:03:25,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 15:03:29,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:03:29,509 INFO L93 Difference]: Finished difference Result 223857 states and 355057 transitions. [2021-11-22 15:03:29,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 15:03:29,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 185 [2021-11-22 15:03:29,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:03:31,052 INFO L225 Difference]: With dead ends: 223857 [2021-11-22 15:03:31,052 INFO L226 Difference]: Without dead ends: 171377 [2021-11-22 15:03:31,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-22 15:03:31,809 INFO L933 BasicCegarLoop]: 5799 mSDtfsCounter, 12806 mSDsluCounter, 21704 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 338 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12815 SdHoareTripleChecker+Valid, 27503 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2021-11-22 15:03:31,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12815 Valid, 27503 Invalid, 1981 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [338 Valid, 1637 Invalid, 6 Unknown, 0 Unchecked, 21.5s Time] [2021-11-22 15:03:32,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171377 states. [2021-11-22 15:03:39,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171377 to 168471. [2021-11-22 15:03:39,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168471 states, 165380 states have (on average 1.4536642883057203) internal successors, (240407), 165430 states have internal predecessors, (240407), 1344 states have call successors, (1344), 288 states have call predecessors, (1344), 1744 states have return successors, (20753), 3208 states have call predecessors, (20753), 1328 states have call successors, (20753) [2021-11-22 15:03:41,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168471 states to 168471 states and 262504 transitions. [2021-11-22 15:03:41,561 INFO L78 Accepts]: Start accepts. Automaton has 168471 states and 262504 transitions. Word has length 185 [2021-11-22 15:03:41,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:03:41,562 INFO L470 AbstractCegarLoop]: Abstraction has 168471 states and 262504 transitions. [2021-11-22 15:03:41,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-22 15:03:41,563 INFO L276 IsEmpty]: Start isEmpty. Operand 168471 states and 262504 transitions. [2021-11-22 15:03:41,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-22 15:03:41,576 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:03:41,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:03:41,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 15:03:41,577 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION === [_fcoe_createErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 15:03:41,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:03:41,578 INFO L85 PathProgramCache]: Analyzing trace with hash 545095960, now seen corresponding path program 1 times [2021-11-22 15:03:41,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:03:41,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671075438] [2021-11-22 15:03:41,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:03:41,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:03:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:03:42,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-22 15:03:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:03:42,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-22 15:03:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:03:42,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:03:42,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:03:42,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671075438] [2021-11-22 15:03:42,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671075438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:03:42,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:03:42,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 15:03:42,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660572259] [2021-11-22 15:03:42,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:03:42,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 15:03:42,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:03:42,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 15:03:42,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-22 15:03:42,308 INFO L87 Difference]: Start difference. First operand 168471 states and 262504 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-22 15:03:45,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 15:03:52,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 15:03:59,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:03:59,459 INFO L93 Difference]: Finished difference Result 179047 states and 280042 transitions. [2021-11-22 15:03:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:03:59,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 184 [2021-11-22 15:03:59,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:03:59,463 INFO L225 Difference]: With dead ends: 179047 [2021-11-22 15:03:59,464 INFO L226 Difference]: Without dead ends: 0 [2021-11-22 15:04:00,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-22 15:04:00,542 INFO L933 BasicCegarLoop]: 5731 mSDtfsCounter, 13554 mSDsluCounter, 8355 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 357 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13557 SdHoareTripleChecker+Valid, 14086 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-11-22 15:04:00,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13557 Valid, 14086 Invalid, 1404 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [357 Valid, 1045 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2021-11-22 15:04:00,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-22 15:04:00,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-22 15:04:00,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:04:00,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-22 15:04:00,546 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 184 [2021-11-22 15:04:00,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:04:00,546 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 15:04:00,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 5 states have internal predecessors, (178), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-22 15:04:00,547 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-22 15:04:00,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 15:04:00,550 INFO L764 garLoopResultBuilder]: Registering result SAFE for location _fcoe_createErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-22 15:04:00,551 INFO L764 garLoopResultBuilder]: Registering result SAFE for location fcoe_if_destroyErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-22 15:04:00,552 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-22 15:04:00,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 15:04:00,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.