java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-misc-c2port-core.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 18:20:15,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 18:20:15,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 18:20:15,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 18:20:15,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 18:20:15,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 18:20:15,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 18:20:15,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 18:20:15,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 18:20:15,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 18:20:15,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 18:20:15,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 18:20:15,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 18:20:15,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 18:20:15,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 18:20:15,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 18:20:15,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 18:20:15,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 18:20:15,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 18:20:15,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 18:20:15,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 18:20:15,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 18:20:15,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 18:20:15,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 18:20:15,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 18:20:15,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 18:20:15,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 18:20:15,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 18:20:15,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 18:20:15,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 18:20:15,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 18:20:15,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 18:20:15,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 18:20:15,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 18:20:15,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 18:20:15,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 18:20:15,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 18:20:15,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 18:20:15,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 18:20:15,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 18:20:15,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 18:20:15,751 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 18:20:15,765 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 18:20:15,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 18:20:15,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 18:20:15,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 18:20:15,767 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 18:20:15,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 18:20:15,767 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 18:20:15,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 18:20:15,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 18:20:15,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 18:20:15,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 18:20:15,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 18:20:15,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 18:20:15,768 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 18:20:15,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 18:20:15,769 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 18:20:15,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 18:20:15,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 18:20:15,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 18:20:15,770 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 18:20:15,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 18:20:15,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:20:15,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 18:20:15,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 18:20:15,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 18:20:15,771 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 18:20:15,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 18:20:15,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 18:20:15,771 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 18:20:16,065 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 18:20:16,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 18:20:16,082 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 18:20:16,083 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 18:20:16,084 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 18:20:16,084 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-misc-c2port-core.ko.cil.out.i [2019-10-13 18:20:16,158 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab4837b1d/549e6b3d9b3e43d5877b27e0a4aa20cd/FLAG5a7e206a0 [2019-10-13 18:20:16,955 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 18:20:16,955 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-misc-c2port-core.ko.cil.out.i [2019-10-13 18:20:16,989 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab4837b1d/549e6b3d9b3e43d5877b27e0a4aa20cd/FLAG5a7e206a0 [2019-10-13 18:20:17,471 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab4837b1d/549e6b3d9b3e43d5877b27e0a4aa20cd [2019-10-13 18:20:17,480 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 18:20:17,482 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 18:20:17,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 18:20:17,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 18:20:17,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 18:20:17,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:20:17" (1/1) ... [2019-10-13 18:20:17,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f974cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:17, skipping insertion in model container [2019-10-13 18:20:17,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:20:17" (1/1) ... [2019-10-13 18:20:17,498 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 18:20:17,603 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 18:20:18,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:20:18,875 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 18:20:19,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:20:19,519 INFO L192 MainTranslator]: Completed translation [2019-10-13 18:20:19,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:19 WrapperNode [2019-10-13 18:20:19,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 18:20:19,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 18:20:19,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 18:20:19,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 18:20:19,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:19" (1/1) ... [2019-10-13 18:20:19,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:19" (1/1) ... [2019-10-13 18:20:19,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:19" (1/1) ... [2019-10-13 18:20:19,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:19" (1/1) ... [2019-10-13 18:20:19,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:19" (1/1) ... [2019-10-13 18:20:19,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:19" (1/1) ... [2019-10-13 18:20:19,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:19" (1/1) ... [2019-10-13 18:20:19,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 18:20:19,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 18:20:19,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 18:20:19,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 18:20:19,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:19" (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 [2019-10-13 18:20:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 18:20:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 18:20:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-13 18:20:19,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-13 18:20:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2019-10-13 18:20:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_enable [2019-10-13 18:20:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-10-13 18:20:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-13 18:20:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-13 18:20:19,870 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-13 18:20:19,871 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-13 18:20:19,871 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 18:20:19,871 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_reset [2019-10-13 18:20:19,871 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_strobe_ck [2019-10-13 18:20:19,871 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_write_ar [2019-10-13 18:20:19,872 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_read_ar [2019-10-13 18:20:19,872 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_write_dr [2019-10-13 18:20:19,872 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_read_dr [2019-10-13 18:20:19,872 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_poll_in_busy [2019-10-13 18:20:19,874 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_poll_out_ready [2019-10-13 18:20:19,874 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_show_name [2019-10-13 18:20:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_show_flash_blocks_num [2019-10-13 18:20:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_show_flash_block_size [2019-10-13 18:20:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_show_flash_size [2019-10-13 18:20:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_show_access [2019-10-13 18:20:19,876 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_store_access [2019-10-13 18:20:19,877 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_store_reset [2019-10-13 18:20:19,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __c2port_show_dev_id [2019-10-13 18:20:19,877 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_show_dev_id [2019-10-13 18:20:19,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __c2port_show_rev_id [2019-10-13 18:20:19,877 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_show_rev_id [2019-10-13 18:20:19,877 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_show_flash_access [2019-10-13 18:20:19,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __c2port_store_flash_access [2019-10-13 18:20:19,878 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_store_flash_access [2019-10-13 18:20:19,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __c2port_write_flash_erase [2019-10-13 18:20:19,878 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_store_flash_erase [2019-10-13 18:20:19,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __c2port_read_flash_data [2019-10-13 18:20:19,879 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_read_flash_data [2019-10-13 18:20:19,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __c2port_write_flash_data [2019-10-13 18:20:19,879 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_write_flash_data [2019-10-13 18:20:19,879 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_device_register [2019-10-13 18:20:19,879 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_device_unregister [2019-10-13 18:20:19,879 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_init [2019-10-13 18:20:19,880 INFO L138 BoogieDeclarations]: Found implementation of procedure c2port_exit [2019-10-13 18:20:19,880 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-10-13 18:20:19,880 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-10-13 18:20:19,880 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 18:20:19,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-10-13 18:20:19,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-10-13 18:20:19,880 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-13 18:20:19,881 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-13 18:20:19,881 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-13 18:20:19,881 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-13 18:20:19,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 18:20:19,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2019-10-13 18:20:19,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-13 18:20:19,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 18:20:19,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 18:20:19,882 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-13 18:20:19,882 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-13 18:20:19,882 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-13 18:20:19,883 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-10-13 18:20:19,883 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 18:20:19,883 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 18:20:19,883 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 18:20:19,883 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-10-13 18:20:19,883 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_bin_file [2019-10-13 18:20:19,883 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-10-13 18:20:19,884 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_bin_file [2019-10-13 18:20:19,884 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_get_new [2019-10-13 18:20:19,884 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_pre_get [2019-10-13 18:20:19,884 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2019-10-13 18:20:19,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 18:20:19,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-10-13 18:20:19,885 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-13 18:20:19,886 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 18:20:19,886 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 18:20:19,886 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2019-10-13 18:20:19,886 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2019-10-13 18:20:19,886 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 18:20:19,887 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 18:20:19,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 18:20:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 18:20:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 18:20:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-10-13 18:20:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2019-10-13 18:20:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2019-10-13 18:20:19,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 18:20:19,889 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_enable [2019-10-13 18:20:19,889 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2019-10-13 18:20:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2019-10-13 18:20:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-10-13 18:20:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-13 18:20:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-13 18:20:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-13 18:20:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-13 18:20:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-13 18:20:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-13 18:20:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 18:20:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-13 18:20:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 18:20:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 18:20:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-10-13 18:20:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-10-13 18:20:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2019-10-13 18:20:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-10-13 18:20:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_bin_file [2019-10-13 18:20:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_bin_file [2019-10-13 18:20:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 18:20:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 18:20:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-10-13 18:20:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-10-13 18:20:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 18:20:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-13 18:20:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-13 18:20:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure idr_pre_get [2019-10-13 18:20:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure idr_get_new [2019-10-13 18:20:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2019-10-13 18:20:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 18:20:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 18:20:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_device_register [2019-10-13 18:20:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_device_unregister [2019-10-13 18:20:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 18:20:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_reset [2019-10-13 18:20:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-13 18:20:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_strobe_ck [2019-10-13 18:20:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_write_ar [2019-10-13 18:20:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_read_ar [2019-10-13 18:20:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-13 18:20:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 18:20:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 18:20:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_write_dr [2019-10-13 18:20:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_read_dr [2019-10-13 18:20:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_poll_in_busy [2019-10-13 18:20:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 18:20:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_poll_out_ready [2019-10-13 18:20:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_show_name [2019-10-13 18:20:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_show_flash_blocks_num [2019-10-13 18:20:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_show_flash_block_size [2019-10-13 18:20:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_show_flash_size [2019-10-13 18:20:19,903 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_show_access [2019-10-13 18:20:19,906 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_store_access [2019-10-13 18:20:19,906 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_store_reset [2019-10-13 18:20:19,907 INFO L130 BoogieDeclarations]: Found specification of procedure __c2port_show_dev_id [2019-10-13 18:20:19,912 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_show_dev_id [2019-10-13 18:20:19,913 INFO L130 BoogieDeclarations]: Found specification of procedure __c2port_show_rev_id [2019-10-13 18:20:19,913 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_show_rev_id [2019-10-13 18:20:19,913 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_show_flash_access [2019-10-13 18:20:19,914 INFO L130 BoogieDeclarations]: Found specification of procedure __c2port_store_flash_access [2019-10-13 18:20:19,914 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_store_flash_access [2019-10-13 18:20:19,914 INFO L130 BoogieDeclarations]: Found specification of procedure __c2port_write_flash_erase [2019-10-13 18:20:19,914 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_store_flash_erase [2019-10-13 18:20:19,914 INFO L130 BoogieDeclarations]: Found specification of procedure __c2port_read_flash_data [2019-10-13 18:20:19,914 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_read_flash_data [2019-10-13 18:20:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure __c2port_write_flash_data [2019-10-13 18:20:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_write_flash_data [2019-10-13 18:20:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 18:20:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_init [2019-10-13 18:20:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure c2port_exit [2019-10-13 18:20:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 18:20:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 18:20:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 18:20:19,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 18:20:19,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-10-13 18:20:19,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-10-13 18:20:19,916 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-13 18:20:19,917 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-13 18:20:19,917 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-13 18:20:19,917 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-13 18:20:19,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-10-13 18:20:19,917 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 18:20:19,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 18:20:19,917 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 18:20:19,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 18:20:19,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 18:20:19,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 18:20:19,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 18:20:20,758 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 18:20:20,781 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2019-10-13 18:20:20,781 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2019-10-13 18:20:21,645 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-10-13 18:20:22,448 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 18:20:22,448 INFO L284 CfgBuilder]: Removed 28 assume(true) statements. [2019-10-13 18:20:22,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:20:22 BoogieIcfgContainer [2019-10-13 18:20:22,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 18:20:22,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 18:20:22,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 18:20:22,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 18:20:22,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:20:17" (1/3) ... [2019-10-13 18:20:22,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586886c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:20:22, skipping insertion in model container [2019-10-13 18:20:22,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:19" (2/3) ... [2019-10-13 18:20:22,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586886c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:20:22, skipping insertion in model container [2019-10-13 18:20:22,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:20:22" (3/3) ... [2019-10-13 18:20:22,459 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-misc-c2port-core.ko.cil.out.i [2019-10-13 18:20:22,470 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 18:20:22,482 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 18:20:22,495 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 18:20:22,536 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 18:20:22,536 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 18:20:22,536 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 18:20:22,536 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 18:20:22,536 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 18:20:22,537 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 18:20:22,537 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 18:20:22,537 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 18:20:22,585 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states. [2019-10-13 18:20:22,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-13 18:20:22,593 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:20:22,595 INFO L380 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] [2019-10-13 18:20:22,598 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:20:22,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:20:22,605 INFO L82 PathProgramCache]: Analyzing trace with hash 901334213, now seen corresponding path program 1 times [2019-10-13 18:20:22,613 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:20:22,614 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065684853] [2019-10-13 18:20:22,614 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:22,615 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:22,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:20:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:24,019 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2019-10-13 18:20:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:24,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:20:24,265 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065684853] [2019-10-13 18:20:24,266 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:20:24,266 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 18:20:24,267 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824054641] [2019-10-13 18:20:24,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 18:20:24,272 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:20:24,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 18:20:24,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 18:20:24,288 INFO L87 Difference]: Start difference. First operand 719 states. Second operand 7 states. [2019-10-13 18:20:25,019 WARN L191 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2019-10-13 18:20:33,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:20:33,522 INFO L93 Difference]: Finished difference Result 843 states and 1314 transitions. [2019-10-13 18:20:33,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 18:20:33,525 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2019-10-13 18:20:33,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:20:33,547 INFO L225 Difference]: With dead ends: 843 [2019-10-13 18:20:33,547 INFO L226 Difference]: Without dead ends: 435 [2019-10-13 18:20:33,562 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-13 18:20:33,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2019-10-13 18:20:33,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 408. [2019-10-13 18:20:33,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2019-10-13 18:20:33,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 559 transitions. [2019-10-13 18:20:33,733 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 559 transitions. Word has length 30 [2019-10-13 18:20:33,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:20:33,734 INFO L462 AbstractCegarLoop]: Abstraction has 408 states and 559 transitions. [2019-10-13 18:20:33,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 18:20:33,734 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 559 transitions. [2019-10-13 18:20:33,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-13 18:20:33,736 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:20:33,736 INFO L380 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] [2019-10-13 18:20:33,737 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:20:33,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:20:33,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1586178620, now seen corresponding path program 1 times [2019-10-13 18:20:33,737 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:20:33,738 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699163219] [2019-10-13 18:20:33,738 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:33,738 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:33,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:20:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:34,506 WARN L191 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2019-10-13 18:20:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:34,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:20:34,664 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699163219] [2019-10-13 18:20:34,664 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:20:34,665 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 18:20:34,665 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153705017] [2019-10-13 18:20:34,667 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 18:20:34,668 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:20:34,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 18:20:34,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 18:20:34,668 INFO L87 Difference]: Start difference. First operand 408 states and 559 transitions. Second operand 5 states. [2019-10-13 18:20:35,432 WARN L191 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2019-10-13 18:20:37,296 WARN L191 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 342 [2019-10-13 18:20:40,739 WARN L191 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 333 [2019-10-13 18:20:43,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:20:43,223 INFO L93 Difference]: Finished difference Result 436 states and 595 transitions. [2019-10-13 18:20:43,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 18:20:43,224 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-13 18:20:43,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:20:43,231 INFO L225 Difference]: With dead ends: 436 [2019-10-13 18:20:43,231 INFO L226 Difference]: Without dead ends: 433 [2019-10-13 18:20:43,233 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-13 18:20:43,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2019-10-13 18:20:43,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 407. [2019-10-13 18:20:43,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2019-10-13 18:20:43,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 557 transitions. [2019-10-13 18:20:43,341 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 557 transitions. Word has length 30 [2019-10-13 18:20:43,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:20:43,342 INFO L462 AbstractCegarLoop]: Abstraction has 407 states and 557 transitions. [2019-10-13 18:20:43,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 18:20:43,342 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 557 transitions. [2019-10-13 18:20:43,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-13 18:20:43,343 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:20:43,343 INFO L380 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] [2019-10-13 18:20:43,344 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:20:43,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:20:43,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1927427147, now seen corresponding path program 1 times [2019-10-13 18:20:43,344 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:20:43,344 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995551184] [2019-10-13 18:20:43,345 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:43,345 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:43,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:20:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,106 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2019-10-13 18:20:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:20:44,265 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995551184] [2019-10-13 18:20:44,266 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:20:44,266 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 18:20:44,266 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33534350] [2019-10-13 18:20:44,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 18:20:44,267 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:20:44,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 18:20:44,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 18:20:44,268 INFO L87 Difference]: Start difference. First operand 407 states and 557 transitions. Second operand 5 states. [2019-10-13 18:20:45,001 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2019-10-13 18:20:46,463 WARN L191 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 342 [2019-10-13 18:20:49,667 WARN L191 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 333 [2019-10-13 18:20:52,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:20:52,044 INFO L93 Difference]: Finished difference Result 433 states and 592 transitions. [2019-10-13 18:20:52,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 18:20:52,045 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-13 18:20:52,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:20:52,046 INFO L225 Difference]: With dead ends: 433 [2019-10-13 18:20:52,046 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 18:20:52,050 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-13 18:20:52,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 18:20:52,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 18:20:52,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 18:20:52,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 18:20:52,051 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2019-10-13 18:20:52,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:20:52,051 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 18:20:52,051 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 18:20:52,051 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 18:20:52,052 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 18:20:52,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.