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-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:00:26,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:00:26,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:00:26,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:00:26,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:00:26,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:00:26,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:00:26,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:00:26,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:00:26,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:00:26,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:00:26,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:00:26,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:00:26,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:00:26,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:00:26,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:00:26,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:00:26,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:00:26,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:00:26,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:00:26,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:00:26,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:00:26,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:00:26,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:00:26,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:00:26,766 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:00:26,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:00:26,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:00:26,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:00:26,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:00:26,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:00:26,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:00:26,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:00:26,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:00:26,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:00:26,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:00:26,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:00:26,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:00:26,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:00:26,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:00:26,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:00:26,779 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 [2019-10-14 23:00:26,811 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:00:26,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:00:26,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:00:26,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:00:26,813 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:00:26,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:00:26,814 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:00:26,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:00:26,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:00:26,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:00:26,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:00:26,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:00:26,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:00:26,820 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:00:26,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:00:26,820 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:00:26,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:00:26,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:00:26,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:00:26,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:00:26,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:00:26,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:00:26,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:00:26,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:00:26,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:00:26,823 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:00:26,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:00:26,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:00:26,824 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:00:27,078 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:00:27,099 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:00:27,102 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:00:27,104 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:00:27,104 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:00:27,105 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2019-10-14 23:00:27,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/745d50e9f/ff04e5ece4b44b40be7d5640e66374d4/FLAGb6f93d469 [2019-10-14 23:00:28,053 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:00:28,054 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2019-10-14 23:00:28,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/745d50e9f/ff04e5ece4b44b40be7d5640e66374d4/FLAGb6f93d469 [2019-10-14 23:00:28,577 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/745d50e9f/ff04e5ece4b44b40be7d5640e66374d4 [2019-10-14 23:00:28,588 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:00:28,589 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:00:28,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:00:28,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:00:28,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:00:28,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:00:28" (1/1) ... [2019-10-14 23:00:28,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@181709c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:00:28, skipping insertion in model container [2019-10-14 23:00:28,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:00:28" (1/1) ... [2019-10-14 23:00:28,607 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:00:28,739 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:00:30,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:00:30,045 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:00:30,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:00:30,443 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:00:30,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:00:30 WrapperNode [2019-10-14 23:00:30,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:00:30,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:00:30,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:00:30,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:00:30,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:00:30" (1/1) ... [2019-10-14 23:00:30,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:00:30" (1/1) ... [2019-10-14 23:00:30,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:00:30" (1/1) ... [2019-10-14 23:00:30,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:00:30" (1/1) ... [2019-10-14 23:00:30,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:00:30" (1/1) ... [2019-10-14 23:00:30,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:00:30" (1/1) ... [2019-10-14 23:00:30,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:00:30" (1/1) ... [2019-10-14 23:00:30,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:00:30,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:00:30,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:00:30,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:00:30,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:00:30" (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 [2019-10-14 23:00:30,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:00:30,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:00:30,742 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2019-10-14 23:00:30,743 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2019-10-14 23:00:30,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2019-10-14 23:00:30,744 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2019-10-14 23:00:30,744 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2019-10-14 23:00:30,744 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-10-14 23:00:30,744 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-10-14 23:00:30,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-14 23:00:30,745 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-14 23:00:30,746 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-14 23:00:30,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-14 23:00:30,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-14 23:00:30,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-14 23:00:30,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-14 23:00:30,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-14 23:00:30,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-14 23:00:30,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-14 23:00:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-14 23:00:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-14 23:00:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-14 23:00:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2019-10-14 23:00:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2019-10-14 23:00:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2019-10-14 23:00:30,753 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2019-10-14 23:00:30,753 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2019-10-14 23:00:30,753 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2019-10-14 23:00:30,753 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2019-10-14 23:00:30,753 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2019-10-14 23:00:30,753 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2019-10-14 23:00:30,754 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2019-10-14 23:00:30,754 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2019-10-14 23:00:30,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2019-10-14 23:00:30,754 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2019-10-14 23:00:30,754 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2019-10-14 23:00:30,755 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2019-10-14 23:00:30,755 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2019-10-14 23:00:30,755 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:00:30,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_5 [2019-10-14 23:00:30,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_6 [2019-10-14 23:00:30,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_7 [2019-10-14 23:00:30,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-14 23:00:30,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-14 23:00:30,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-14 23:00:30,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-14 23:00:30,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-14 23:00:30,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-10-14 23:00:30,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-10-14 23:00:30,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-10-14 23:00:30,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-10-14 23:00:30,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-10-14 23:00:30,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-14 23:00:30,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-14 23:00:30,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-10-14 23:00:30,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-10-14 23:00:30,758 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2019-10-14 23:00:30,759 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2019-10-14 23:00:30,759 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-14 23:00:30,759 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-10-14 23:00:30,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2019-10-14 23:00:30,760 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2019-10-14 23:00:30,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-14 23:00:30,760 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-14 23:00:30,760 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2019-10-14 23:00:30,761 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2019-10-14 23:00:30,761 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2019-10-14 23:00:30,761 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-14 23:00:30,762 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-10-14 23:00:30,762 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-14 23:00:30,762 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-14 23:00:30,762 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-14 23:00:30,762 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-14 23:00:30,763 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-14 23:00:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:00:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-14 23:00:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-14 23:00:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-14 23:00:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-10-14 23:00:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-10-14 23:00:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2019-10-14 23:00:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2019-10-14 23:00:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2019-10-14 23:00:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2019-10-14 23:00:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2019-10-14 23:00:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2019-10-14 23:00:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-14 23:00:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2019-10-14 23:00:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-10-14 23:00:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-10-14 23:00:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-14 23:00:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-14 23:00:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-14 23:00:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-14 23:00:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-14 23:00:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:00:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-14 23:00:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:00:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-14 23:00:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-14 23:00:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:00:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:00:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-14 23:00:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-14 23:00:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-14 23:00:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-14 23:00:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-14 23:00:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-14 23:00:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-14 23:00:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-14 23:00:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-14 23:00:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2019-10-14 23:00:30,773 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2019-10-14 23:00:30,773 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2019-10-14 23:00:30,773 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2019-10-14 23:00:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2019-10-14 23:00:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-14 23:00:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-14 23:00:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_5 [2019-10-14 23:00:30,775 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-14 23:00:30,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_6 [2019-10-14 23:00:30,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_7 [2019-10-14 23:00:30,776 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2019-10-14 23:00:30,776 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2019-10-14 23:00:30,777 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-14 23:00:30,777 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-14 23:00:30,777 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-10-14 23:00:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2019-10-14 23:00:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-10-14 23:00:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2019-10-14 23:00:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2019-10-14 23:00:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2019-10-14 23:00:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2019-10-14 23:00:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2019-10-14 23:00:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2019-10-14 23:00:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2019-10-14 23:00:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2019-10-14 23:00:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2019-10-14 23:00:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2019-10-14 23:00:30,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:00:30,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:00:30,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:00:30,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:00:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:00:30,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:00:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2019-10-14 23:00:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2019-10-14 23:00:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2019-10-14 23:00:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-14 23:00:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-14 23:00:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:00:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-14 23:00:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-14 23:00:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-14 23:00:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-14 23:00:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-14 23:00:30,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-10-14 23:00:30,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-10-14 23:00:30,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-10-14 23:00:30,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-10-14 23:00:30,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-10-14 23:00:30,796 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-14 23:00:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:00:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:00:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:00:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:00:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-14 23:00:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-14 23:00:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-14 23:00:30,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-14 23:00:31,676 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-14 23:00:31,689 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-10-14 23:00:34,366 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:00:34,366 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 23:00:34,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:00:34 BoogieIcfgContainer [2019-10-14 23:00:34,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:00:34,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:00:34,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:00:34,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:00:34,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:00:28" (1/3) ... [2019-10-14 23:00:34,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d287a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:00:34, skipping insertion in model container [2019-10-14 23:00:34,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:00:30" (2/3) ... [2019-10-14 23:00:34,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d287a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:00:34, skipping insertion in model container [2019-10-14 23:00:34,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:00:34" (3/3) ... [2019-10-14 23:00:34,378 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2019-10-14 23:00:34,388 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:00:34,402 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:00:34,414 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:00:34,456 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:00:34,456 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:00:34,456 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:00:34,457 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:00:34,457 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:00:34,457 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:00:34,457 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:00:34,457 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:00:34,497 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states. [2019-10-14 23:00:34,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-14 23:00:34,511 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:00:34,512 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] [2019-10-14 23:00:34,515 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:00:34,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:00:34,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1285105989, now seen corresponding path program 1 times [2019-10-14 23:00:34,531 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:00:34,532 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364732859] [2019-10-14 23:00:34,532 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:00:34,532 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:00:34,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:00:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:00:36,975 WARN L191 SmtUtils]: Spent 1.74 s on a formula simplification that was a NOOP. DAG size: 514 [2019-10-14 23:00:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:00:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:00:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:00:37,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:00:37,118 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364732859] [2019-10-14 23:00:37,119 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:00:37,119 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:00:37,119 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312336058] [2019-10-14 23:00:37,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:00:37,124 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:00:37,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:00:37,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:00:37,141 INFO L87 Difference]: Start difference. First operand 590 states. Second operand 5 states. [2019-10-14 23:00:42,552 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 516 [2019-10-14 23:00:52,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:00:52,121 INFO L93 Difference]: Finished difference Result 1347 states and 1924 transitions. [2019-10-14 23:00:52,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:00:52,123 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-10-14 23:00:52,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:00:52,149 INFO L225 Difference]: With dead ends: 1347 [2019-10-14 23:00:52,149 INFO L226 Difference]: Without dead ends: 800 [2019-10-14 23:00:52,158 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:00:52,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2019-10-14 23:00:52,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 587. [2019-10-14 23:00:52,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2019-10-14 23:00:52,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 808 transitions. [2019-10-14 23:00:52,403 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 808 transitions. Word has length 26 [2019-10-14 23:00:52,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:00:52,404 INFO L462 AbstractCegarLoop]: Abstraction has 587 states and 808 transitions. [2019-10-14 23:00:52,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:00:52,404 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 808 transitions. [2019-10-14 23:00:52,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-14 23:00:52,409 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:00:52,409 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:00:52,410 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:00:52,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:00:52,410 INFO L82 PathProgramCache]: Analyzing trace with hash -633709261, now seen corresponding path program 1 times [2019-10-14 23:00:52,411 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:00:52,411 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651840415] [2019-10-14 23:00:52,411 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:00:52,411 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:00:52,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:00:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:00:54,058 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 514 [2019-10-14 23:00:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:00:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:00:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:00:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:00:54,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:00:54,424 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651840415] [2019-10-14 23:00:54,424 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:00:54,425 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:00:54,425 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203684867] [2019-10-14 23:00:54,427 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:00:54,427 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:00:54,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:00:54,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:00:54,432 INFO L87 Difference]: Start difference. First operand 587 states and 808 transitions. Second operand 7 states. [2019-10-14 23:00:55,979 WARN L191 SmtUtils]: Spent 1.52 s on a formula simplification that was a NOOP. DAG size: 517 [2019-10-14 23:01:03,283 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 519