/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -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 -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 14:09:14,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 14:09:14,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 14:09:14,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 14:09:14,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 14:09:14,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 14:09:14,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 14:09:14,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 14:09:14,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 14:09:14,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 14:09:14,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 14:09:14,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 14:09:14,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 14:09:14,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 14:09:14,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 14:09:14,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 14:09:14,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 14:09:14,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 14:09:14,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 14:09:14,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 14:09:14,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 14:09:14,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 14:09:14,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 14:09:14,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 14:09:14,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 14:09:14,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 14:09:14,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 14:09:14,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 14:09:14,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 14:09:14,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 14:09:14,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 14:09:14,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 14:09:14,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 14:09:14,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 14:09:14,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 14:09:14,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 14:09:14,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 14:09:14,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 14:09:14,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 14:09:14,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 14:09:14,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 14:09:14,538 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 14:09:14,591 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 14:09:14,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 14:09:14,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 14:09:14,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 14:09:14,596 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 14:09:14,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 14:09:14,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 14:09:14,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 14:09:14,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 14:09:14,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 14:09:14,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 14:09:14,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 14:09:14,599 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 14:09:14,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 14:09:14,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 14:09:14,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 14:09:14,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 14:09:14,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 14:09:14,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 14:09:14,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 14:09:14,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 14:09:14,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 14:09:14,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 14:09:14,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 14:09:14,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 14:09:14,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 14:09:15,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 14:09:15,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 14:09:15,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 14:09:15,073 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 14:09:15,074 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 14:09:15,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i [2020-12-22 14:09:15,162 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de253cbed/4539d3504d6442d6999703dbbc81b22a/FLAG5e871d937 [2020-12-22 14:09:16,489 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 14:09:16,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i [2020-12-22 14:09:16,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de253cbed/4539d3504d6442d6999703dbbc81b22a/FLAG5e871d937 [2020-12-22 14:09:16,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de253cbed/4539d3504d6442d6999703dbbc81b22a [2020-12-22 14:09:16,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 14:09:16,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 14:09:16,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 14:09:16,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 14:09:16,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 14:09:16,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:09:16" (1/1) ... [2020-12-22 14:09:16,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50ee9fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:09:16, skipping insertion in model container [2020-12-22 14:09:16,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:09:16" (1/1) ... [2020-12-22 14:09:16,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 14:09:16,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 14:09:20,566 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i[413960,413973] [2020-12-22 14:09:20,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:09:20,739 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 14:09:21,414 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i[413960,413973] [2020-12-22 14:09:21,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:09:22,283 INFO L208 MainTranslator]: Completed translation [2020-12-22 14:09:22,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:09:22 WrapperNode [2020-12-22 14:09:22,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 14:09:22,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 14:09:22,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 14:09:22,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 14:09:22,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:09:22" (1/1) ... [2020-12-22 14:09:22,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:09:22" (1/1) ... [2020-12-22 14:09:22,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 14:09:22,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 14:09:22,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 14:09:22,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 14:09:22,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:09:22" (1/1) ... [2020-12-22 14:09:22,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:09:22" (1/1) ... [2020-12-22 14:09:23,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:09:22" (1/1) ... [2020-12-22 14:09:23,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:09:22" (1/1) ... [2020-12-22 14:09:23,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:09:22" (1/1) ... [2020-12-22 14:09:23,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:09:22" (1/1) ... [2020-12-22 14:09:23,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:09:22" (1/1) ... [2020-12-22 14:09:23,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 14:09:23,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 14:09:23,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 14:09:23,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 14:09:23,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:09:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 14:09:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_done [2020-12-22 14:09:23,957 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_done [2020-12-22 14:09:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2020-12-22 14:09:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_vport_destroy [2020-12-22 14:09:23,957 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_vport_destroy [2020-12-22 14:09:23,958 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ctlr_alloc [2020-12-22 14:09:23,958 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ctlr_alloc [2020-12-22 14:09:23,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 14:09:23,959 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_remove [2020-12-22 14:09:23,960 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_remove [2020-12-22 14:09:23,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 14:09:23,961 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_target [2020-12-22 14:09:23,962 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_target [2020-12-22 14:09:23,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 14:09:23,962 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_ddp_setup [2020-12-22 14:09:23,962 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_ddp_setup [2020-12-22 14:09:23,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 14:09:23,962 INFO L130 BoogieDeclarations]: Found specification of procedure _fcoe_create [2020-12-22 14:09:23,963 INFO L138 BoogieDeclarations]: Found implementation of procedure _fcoe_create [2020-12-22 14:09:23,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 14:09:23,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 14:09:23,963 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 14:09:23,963 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-12-22 14:09:23,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-12-22 14:09:23,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 14:09:23,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 14:09:23,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 14:09:23,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 14:09:23,964 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2020-12-22 14:09:23,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_17 [2020-12-22 14:09:23,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_17 [2020-12-22 14:09:23,965 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_create [2020-12-22 14:09:23,965 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_create [2020-12-22 14:09:23,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 14:09:23,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 14:09:23,965 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2020-12-22 14:09:23,965 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2020-12-22 14:09:23,965 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_cleanup [2020-12-22 14:09:23,966 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_cleanup [2020-12-22 14:09:23,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 14:09:23,966 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2020-12-22 14:09:23,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~int~TO~int [2020-12-22 14:09:23,966 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~TO~int [2020-12-22 14:09:23,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~TO~int [2020-12-22 14:09:23,967 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_if_destroy [2020-12-22 14:09:23,967 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_if_destroy [2020-12-22 14:09:23,967 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_interface_setup [2020-12-22 14:09:23,967 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_interface_setup [2020-12-22 14:09:23,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 14:09:23,967 INFO L130 BoogieDeclarations]: Found specification of procedure fcoe_destroy_work [2020-12-22 14:09:23,968 INFO L138 BoogieDeclarations]: Found implementation of procedure fcoe_destroy_work [2020-12-22 14:09:23,968 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2020-12-22 14:09:23,968 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2020-12-22 14:09:23,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 14:09:42,781 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 14:09:42,782 INFO L299 CfgBuilder]: Removed 3018 assume(true) statements. [2020-12-22 14:09:42,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:09:42 BoogieIcfgContainer [2020-12-22 14:09:42,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 14:09:42,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 14:09:42,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 14:09:42,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 14:09:42,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:09:16" (1/3) ... [2020-12-22 14:09:42,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5552e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:09:42, skipping insertion in model container [2020-12-22 14:09:42,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:09:22" (2/3) ... [2020-12-22 14:09:42,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5552e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:09:42, skipping insertion in model container [2020-12-22 14:09:42,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:09:42" (3/3) ... [2020-12-22 14:09:42,801 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--fcoe--fcoe.ko-entry_point.cil.out.i [2020-12-22 14:09:42,808 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 14:09:42,817 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 14:09:42,840 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 14:09:42,884 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 14:09:42,884 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 14:09:42,885 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 14:09:42,885 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 14:09:42,886 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 14:09:42,886 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 14:09:42,887 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 14:09:42,887 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 14:09:42,955 INFO L276 IsEmpty]: Start isEmpty. Operand 3836 states. [2020-12-22 14:09:42,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-12-22 14:09:42,977 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:09:42,979 INFO L422 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] [2020-12-22 14:09:42,979 INFO L429 AbstractCegarLoop]: === Iteration 1 === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:09:42,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:09:42,985 INFO L82 PathProgramCache]: Analyzing trace with hash -352933849, now seen corresponding path program 1 times [2020-12-22 14:09:42,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:09:42,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295264820] [2020-12-22 14:09:42,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:09:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:09:43,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:09:43,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295264820] [2020-12-22 14:09:43,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:09:43,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:09:43,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91546532] [2020-12-22 14:09:43,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 14:09:43,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:09:43,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 14:09:43,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 14:09:43,997 INFO L87 Difference]: Start difference. First operand 3836 states. Second operand 2 states. [2020-12-22 14:09:44,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:09:44,262 INFO L93 Difference]: Finished difference Result 7668 states and 11583 transitions. [2020-12-22 14:09:44,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 14:09:44,264 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 127 [2020-12-22 14:09:44,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:09:44,314 INFO L225 Difference]: With dead ends: 7668 [2020-12-22 14:09:44,315 INFO L226 Difference]: Without dead ends: 3819 [2020-12-22 14:09:44,337 INFO L677 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 [2020-12-22 14:09:44,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3819 states. [2020-12-22 14:09:44,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3819 to 3819. [2020-12-22 14:09:44,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3819 states. [2020-12-22 14:09:44,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3819 states to 3819 states and 5625 transitions. [2020-12-22 14:09:44,573 INFO L78 Accepts]: Start accepts. Automaton has 3819 states and 5625 transitions. Word has length 127 [2020-12-22 14:09:44,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:09:44,574 INFO L481 AbstractCegarLoop]: Abstraction has 3819 states and 5625 transitions. [2020-12-22 14:09:44,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 14:09:44,574 INFO L276 IsEmpty]: Start isEmpty. Operand 3819 states and 5625 transitions. [2020-12-22 14:09:44,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-12-22 14:09:44,583 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:09:44,584 INFO L422 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] [2020-12-22 14:09:44,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 14:09:44,584 INFO L429 AbstractCegarLoop]: === Iteration 2 === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:09:44,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:09:44,586 INFO L82 PathProgramCache]: Analyzing trace with hash 24647893, now seen corresponding path program 1 times [2020-12-22 14:09:44,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:09:44,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14110773] [2020-12-22 14:09:44,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:09:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:09:45,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:09:45,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14110773] [2020-12-22 14:09:45,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:09:45,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:09:45,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434044292] [2020-12-22 14:09:45,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:09:45,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:09:45,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:09:45,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:09:45,438 INFO L87 Difference]: Start difference. First operand 3819 states and 5625 transitions. Second operand 3 states. [2020-12-22 14:09:45,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:09:45,899 INFO L93 Difference]: Finished difference Result 11241 states and 16686 transitions. [2020-12-22 14:09:45,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:09:45,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-12-22 14:09:45,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:09:45,966 INFO L225 Difference]: With dead ends: 11241 [2020-12-22 14:09:45,966 INFO L226 Difference]: Without dead ends: 7521 [2020-12-22 14:09:45,986 INFO L677 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 [2020-12-22 14:09:46,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7521 states. [2020-12-22 14:09:46,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7521 to 7517. [2020-12-22 14:09:46,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7517 states. [2020-12-22 14:09:46,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7517 states to 7517 states and 11141 transitions. [2020-12-22 14:09:46,435 INFO L78 Accepts]: Start accepts. Automaton has 7517 states and 11141 transitions. Word has length 127 [2020-12-22 14:09:46,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:09:46,437 INFO L481 AbstractCegarLoop]: Abstraction has 7517 states and 11141 transitions. [2020-12-22 14:09:46,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:09:46,437 INFO L276 IsEmpty]: Start isEmpty. Operand 7517 states and 11141 transitions. [2020-12-22 14:09:46,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-12-22 14:09:46,453 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:09:46,454 INFO L422 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] [2020-12-22 14:09:46,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 14:09:46,454 INFO L429 AbstractCegarLoop]: === Iteration 3 === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:09:46,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:09:46,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1603353057, now seen corresponding path program 1 times [2020-12-22 14:09:46,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:09:46,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694842556] [2020-12-22 14:09:46,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:09:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:09:46,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:09:46,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694842556] [2020-12-22 14:09:46,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:09:46,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:09:46,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75795435] [2020-12-22 14:09:46,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:09:46,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:09:46,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:09:46,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:09:46,965 INFO L87 Difference]: Start difference. First operand 7517 states and 11141 transitions. Second operand 3 states. [2020-12-22 14:09:47,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:09:47,554 INFO L93 Difference]: Finished difference Result 22171 states and 32943 transitions. [2020-12-22 14:09:47,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:09:47,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-12-22 14:09:47,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:09:47,680 INFO L225 Difference]: With dead ends: 22171 [2020-12-22 14:09:47,680 INFO L226 Difference]: Without dead ends: 14760 [2020-12-22 14:09:47,714 INFO L677 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 [2020-12-22 14:09:47,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14760 states. [2020-12-22 14:09:48,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14760 to 14683. [2020-12-22 14:09:48,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14683 states. [2020-12-22 14:09:48,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14683 states to 14683 states and 21851 transitions. [2020-12-22 14:09:48,256 INFO L78 Accepts]: Start accepts. Automaton has 14683 states and 21851 transitions. Word has length 147 [2020-12-22 14:09:48,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:09:48,256 INFO L481 AbstractCegarLoop]: Abstraction has 14683 states and 21851 transitions. [2020-12-22 14:09:48,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:09:48,257 INFO L276 IsEmpty]: Start isEmpty. Operand 14683 states and 21851 transitions. [2020-12-22 14:09:48,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-12-22 14:09:48,266 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:09:48,266 INFO L422 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] [2020-12-22 14:09:48,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 14:09:48,267 INFO L429 AbstractCegarLoop]: === Iteration 4 === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:09:48,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:09:48,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1331533072, now seen corresponding path program 1 times [2020-12-22 14:09:48,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:09:48,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422414594] [2020-12-22 14:09:48,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:09:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:09:48,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:09:48,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422414594] [2020-12-22 14:09:48,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:09:48,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:09:48,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271164035] [2020-12-22 14:09:48,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:09:48,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:09:48,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:09:48,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:09:48,956 INFO L87 Difference]: Start difference. First operand 14683 states and 21851 transitions. Second operand 3 states. [2020-12-22 14:09:50,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:09:50,027 INFO L93 Difference]: Finished difference Result 41105 states and 61485 transitions. [2020-12-22 14:09:50,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:09:50,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-12-22 14:09:50,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:09:50,141 INFO L225 Difference]: With dead ends: 41105 [2020-12-22 14:09:50,141 INFO L226 Difference]: Without dead ends: 26528 [2020-12-22 14:09:50,202 INFO L677 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 [2020-12-22 14:09:50,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26528 states. [2020-12-22 14:09:51,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26528 to 26441. [2020-12-22 14:09:51,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26441 states. [2020-12-22 14:09:51,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26441 states to 26441 states and 39671 transitions. [2020-12-22 14:09:51,303 INFO L78 Accepts]: Start accepts. Automaton has 26441 states and 39671 transitions. Word has length 189 [2020-12-22 14:09:51,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:09:51,304 INFO L481 AbstractCegarLoop]: Abstraction has 26441 states and 39671 transitions. [2020-12-22 14:09:51,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:09:51,305 INFO L276 IsEmpty]: Start isEmpty. Operand 26441 states and 39671 transitions. [2020-12-22 14:09:51,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-12-22 14:09:51,313 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:09:51,314 INFO L422 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] [2020-12-22 14:09:51,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 14:09:51,314 INFO L429 AbstractCegarLoop]: === Iteration 5 === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:09:51,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:09:51,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1196876529, now seen corresponding path program 1 times [2020-12-22 14:09:51,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:09:51,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475982690] [2020-12-22 14:09:51,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:09:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:09:52,198 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-22 14:09:52,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-12-22 14:09:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:09:52,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-12-22 14:09:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:09:52,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-12-22 14:09:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:09:52,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:09:52,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475982690] [2020-12-22 14:09:52,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:09:52,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 14:09:52,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228423047] [2020-12-22 14:09:52,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 14:09:52,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:09:52,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 14:09:52,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 14:09:52,718 INFO L87 Difference]: Start difference. First operand 26441 states and 39671 transitions. Second operand 7 states. [2020-12-22 14:09:55,066 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-12-22 14:10:04,062 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-22 14:10:15,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:10:15,105 INFO L93 Difference]: Finished difference Result 134945 states and 208475 transitions. [2020-12-22 14:10:15,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 14:10:15,106 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 189 [2020-12-22 14:10:15,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:10:16,056 INFO L225 Difference]: With dead ends: 134945 [2020-12-22 14:10:16,058 INFO L226 Difference]: Without dead ends: 108610 [2020-12-22 14:10:16,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-12-22 14:10:16,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108610 states. [2020-12-22 14:10:21,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108610 to 98341. [2020-12-22 14:10:21,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98341 states. [2020-12-22 14:10:22,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98341 states to 98341 states and 150383 transitions. [2020-12-22 14:10:22,056 INFO L78 Accepts]: Start accepts. Automaton has 98341 states and 150383 transitions. Word has length 189 [2020-12-22 14:10:22,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:10:22,057 INFO L481 AbstractCegarLoop]: Abstraction has 98341 states and 150383 transitions. [2020-12-22 14:10:22,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 14:10:22,057 INFO L276 IsEmpty]: Start isEmpty. Operand 98341 states and 150383 transitions. [2020-12-22 14:10:22,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-12-22 14:10:22,065 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:10:22,065 INFO L422 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] [2020-12-22 14:10:22,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 14:10:22,065 INFO L429 AbstractCegarLoop]: === Iteration 6 === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:10:22,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:10:22,066 INFO L82 PathProgramCache]: Analyzing trace with hash -965980761, now seen corresponding path program 1 times [2020-12-22 14:10:22,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:10:22,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764900883] [2020-12-22 14:10:22,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:10:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:10:22,929 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-22 14:10:22,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-12-22 14:10:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:10:23,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-12-22 14:10:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:10:23,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-12-22 14:10:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:10:23,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:10:23,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764900883] [2020-12-22 14:10:23,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:10:23,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 14:10:23,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134490598] [2020-12-22 14:10:23,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 14:10:23,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:10:23,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 14:10:23,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 14:10:23,327 INFO L87 Difference]: Start difference. First operand 98341 states and 150383 transitions. Second operand 7 states. [2020-12-22 14:10:25,653 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-12-22 14:10:35,104 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-22 14:11:01,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:11:01,866 INFO L93 Difference]: Finished difference Result 611825 states and 1031643 transitions. [2020-12-22 14:11:01,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 14:11:01,867 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2020-12-22 14:11:01,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:11:06,929 INFO L225 Difference]: With dead ends: 611825 [2020-12-22 14:11:06,929 INFO L226 Difference]: Without dead ends: 513590 [2020-12-22 14:11:09,074 INFO L677 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 [2020-12-22 14:11:09,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513590 states. [2020-12-22 14:11:30,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513590 to 459913. [2020-12-22 14:11:30,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459913 states. [2020-12-22 14:11:36,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459913 states to 459913 states and 749385 transitions. [2020-12-22 14:11:36,117 INFO L78 Accepts]: Start accepts. Automaton has 459913 states and 749385 transitions. Word has length 191 [2020-12-22 14:11:36,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:11:36,118 INFO L481 AbstractCegarLoop]: Abstraction has 459913 states and 749385 transitions. [2020-12-22 14:11:36,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 14:11:36,118 INFO L276 IsEmpty]: Start isEmpty. Operand 459913 states and 749385 transitions. [2020-12-22 14:11:36,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-12-22 14:11:36,130 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:11:36,130 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 14:11:36,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 14:11:36,131 INFO L429 AbstractCegarLoop]: === Iteration 7 === [fcoe_interface_createErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, fcoe_interface_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:11:36,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:11:36,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1832869757, now seen corresponding path program 1 times [2020-12-22 14:11:36,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:11:36,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911346682] [2020-12-22 14:11:36,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:11:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:11:37,276 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-22 14:11:37,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-12-22 14:11:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:11:37,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-12-22 14:11:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:11:37,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-12-22 14:11:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:11:37,434 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:11:37,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911346682] [2020-12-22 14:11:37,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033984997] [2020-12-22 14:11:37,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:11:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:11:40,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 5138 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 14:11:40,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:11:40,422 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 14:11:40,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:11:40,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-12-22 14:11:40,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347713006] [2020-12-22 14:11:40,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:11:40,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:11:40,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:11:40,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 14:11:40,425 INFO L87 Difference]: Start difference. First operand 459913 states and 749385 transitions. Second operand 3 states.