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-f4eb214f-m [2019-10-13 19:01:28,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:01:28,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:01:28,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:01:28,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:01:28,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:01:28,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:01:28,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:01:28,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:01:28,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:01:28,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:01:28,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:01:28,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:01:28,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:01:28,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:01:28,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:01:28,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:01:28,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:01:28,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:01:28,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:01:28,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:01:28,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:01:28,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:01:28,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:01:28,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:01:28,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:01:28,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:01:28,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:01:28,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:01:28,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:01:28,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:01:28,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:01:28,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:01:28,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:01:28,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:01:28,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:01:28,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:01:28,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:01:28,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:01:28,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:01:28,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:01:28,726 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 19:01:28,752 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:01:28,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:01:28,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:01:28,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:01:28,755 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:01:28,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:01:28,755 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:01:28,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:01:28,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:01:28,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:01:28,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:01:28,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:01:28,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:01:28,756 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:01:28,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:01:28,757 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:01:28,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:01:28,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:01:28,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:01:28,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:01:28,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:01:28,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:01:28,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:01:28,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:01:28,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:01:28,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:01:28,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:01:28,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:01:28,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:01:29,041 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:01:29,054 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:01:29,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:01:29,059 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:01:29,060 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:01:29,061 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2019-10-13 19:01:29,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ae0a6f80/e3d198e0a2a44ac99f50e2aa79d2355a/FLAGe75d9402b [2019-10-13 19:01:29,862 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:01:29,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2019-10-13 19:01:29,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ae0a6f80/e3d198e0a2a44ac99f50e2aa79d2355a/FLAGe75d9402b [2019-10-13 19:01:29,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ae0a6f80/e3d198e0a2a44ac99f50e2aa79d2355a [2019-10-13 19:01:29,995 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:01:29,997 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:01:29,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:01:29,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:01:30,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:01:30,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:01:29" (1/1) ... [2019-10-13 19:01:30,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21960f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:30, skipping insertion in model container [2019-10-13 19:01:30,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:01:29" (1/1) ... [2019-10-13 19:01:30,014 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:01:30,126 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:01:31,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:01:31,492 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:01:31,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:01:31,986 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:01:31,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:31 WrapperNode [2019-10-13 19:01:31,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:01:31,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:01:31,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:01:31,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:01:32,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:31" (1/1) ... [2019-10-13 19:01:32,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:31" (1/1) ... [2019-10-13 19:01:32,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:31" (1/1) ... [2019-10-13 19:01:32,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:31" (1/1) ... [2019-10-13 19:01:32,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:31" (1/1) ... [2019-10-13 19:01:32,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:31" (1/1) ... [2019-10-13 19:01:32,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:31" (1/1) ... [2019-10-13 19:01:32,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:01:32,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:01:32,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:01:32,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:01:32,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:31" (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 19:01:32,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:01:32,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:01:32,302 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2019-10-13 19:01:32,302 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2019-10-13 19:01:32,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2019-10-13 19:01:32,303 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2019-10-13 19:01:32,303 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2019-10-13 19:01:32,303 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-10-13 19:01:32,303 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-10-13 19:01:32,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 19:01:32,304 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 19:01:32,304 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 19:01:32,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 19:01:32,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 19:01:32,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 19:01:32,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 19:01:32,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 19:01:32,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 19:01:32,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 19:01:32,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 19:01:32,308 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-13 19:01:32,309 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-13 19:01:32,309 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2019-10-13 19:01:32,309 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2019-10-13 19:01:32,309 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2019-10-13 19:01:32,309 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2019-10-13 19:01:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2019-10-13 19:01:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2019-10-13 19:01:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2019-10-13 19:01:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2019-10-13 19:01:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2019-10-13 19:01:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2019-10-13 19:01:32,311 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2019-10-13 19:01:32,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2019-10-13 19:01:32,311 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2019-10-13 19:01:32,311 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2019-10-13 19:01:32,311 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2019-10-13 19:01:32,311 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2019-10-13 19:01:32,312 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:01:32,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_5 [2019-10-13 19:01:32,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_6 [2019-10-13 19:01:32,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_7 [2019-10-13 19:01:32,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 19:01:32,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 19:01:32,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 19:01:32,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 19:01:32,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 19:01:32,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2019-10-13 19:01:32,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2019-10-13 19:01:32,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2019-10-13 19:01:32,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2019-10-13 19:01:32,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2019-10-13 19:01:32,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 19:01:32,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-13 19:01:32,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-10-13 19:01:32,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-10-13 19:01:32,315 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2019-10-13 19:01:32,315 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2019-10-13 19:01:32,315 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-13 19:01:32,316 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-10-13 19:01:32,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2019-10-13 19:01:32,316 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2019-10-13 19:01:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 19:01:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 19:01:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2019-10-13 19:01:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2019-10-13 19:01:32,318 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2019-10-13 19:01:32,318 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-13 19:01:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-10-13 19:01:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 19:01:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 19:01:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 19:01:32,320 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 19:01:32,320 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 19:01:32,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:01:32,321 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 19:01:32,321 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 19:01:32,322 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 19:01:32,322 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-10-13 19:01:32,322 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-10-13 19:01:32,323 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2019-10-13 19:01:32,324 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2019-10-13 19:01:32,325 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2019-10-13 19:01:32,325 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2019-10-13 19:01:32,325 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2019-10-13 19:01:32,326 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2019-10-13 19:01:32,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 19:01:32,329 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2019-10-13 19:01:32,329 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-10-13 19:01:32,329 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-10-13 19:01:32,330 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 19:01:32,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 19:01:32,331 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 19:01:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 19:01:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 19:01:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:01:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 19:01:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:01:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 19:01:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 19:01:32,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:01:32,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:01:32,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 19:01:32,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 19:01:32,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 19:01:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 19:01:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 19:01:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 19:01:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 19:01:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 19:01:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 19:01:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2019-10-13 19:01:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2019-10-13 19:01:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2019-10-13 19:01:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2019-10-13 19:01:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2019-10-13 19:01:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-13 19:01:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-13 19:01:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_5 [2019-10-13 19:01:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-13 19:01:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_6 [2019-10-13 19:01:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_7 [2019-10-13 19:01:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2019-10-13 19:01:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2019-10-13 19:01:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-13 19:01:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-13 19:01:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-10-13 19:01:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2019-10-13 19:01:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-10-13 19:01:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2019-10-13 19:01:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2019-10-13 19:01:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2019-10-13 19:01:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2019-10-13 19:01:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2019-10-13 19:01:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2019-10-13 19:01:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2019-10-13 19:01:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2019-10-13 19:01:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2019-10-13 19:01:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2019-10-13 19:01:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:01:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:01:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:01:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:01:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:01:32,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:01:32,341 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2019-10-13 19:01:32,341 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2019-10-13 19:01:32,341 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2019-10-13 19:01:32,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 19:01:32,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 19:01:32,342 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:01:32,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 19:01:32,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 19:01:32,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 19:01:32,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 19:01:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 19:01:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2019-10-13 19:01:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2019-10-13 19:01:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2019-10-13 19:01:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2019-10-13 19:01:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2019-10-13 19:01:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 19:01:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:01:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:01:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:01:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:01:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 19:01:32,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 19:01:32,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 19:01:32,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 19:01:33,140 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 19:01:33,150 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2019-10-13 19:01:36,380 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:01:36,381 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 19:01:36,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:01:36 BoogieIcfgContainer [2019-10-13 19:01:36,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:01:36,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:01:36,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:01:36,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:01:36,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:01:29" (1/3) ... [2019-10-13 19:01:36,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d898cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:01:36, skipping insertion in model container [2019-10-13 19:01:36,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:31" (2/3) ... [2019-10-13 19:01:36,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d898cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:01:36, skipping insertion in model container [2019-10-13 19:01:36,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:01:36" (3/3) ... [2019-10-13 19:01:36,393 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2019-10-13 19:01:36,403 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:01:36,418 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:01:36,432 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:01:36,477 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:01:36,477 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:01:36,478 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:01:36,478 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:01:36,478 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:01:36,479 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:01:36,479 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:01:36,479 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:01:36,521 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states. [2019-10-13 19:01:36,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-13 19:01:36,533 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:01:36,534 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] [2019-10-13 19:01:36,538 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:01:36,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:01:36,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1285105989, now seen corresponding path program 1 times [2019-10-13 19:01:36,553 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:01:36,553 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999051013] [2019-10-13 19:01:36,554 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:01:36,554 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:01:36,554 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:01:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:01:38,923 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 514 [2019-10-13 19:01:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:01:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:01:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:01:39,024 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 19:01:39,025 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999051013] [2019-10-13 19:01:39,026 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:01:39,026 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:01:39,026 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180153927] [2019-10-13 19:01:39,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:01:39,031 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:01:39,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:01:39,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:01:39,048 INFO L87 Difference]: Start difference. First operand 590 states. Second operand 5 states. [2019-10-13 19:01:44,293 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 516 [2019-10-13 19:01:54,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:01:54,456 INFO L93 Difference]: Finished difference Result 1347 states and 1924 transitions. [2019-10-13 19:01:54,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 19:01:54,463 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-10-13 19:01:54,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:01:54,496 INFO L225 Difference]: With dead ends: 1347 [2019-10-13 19:01:54,496 INFO L226 Difference]: Without dead ends: 800 [2019-10-13 19:01:54,508 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:01:54,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2019-10-13 19:01:54,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 587. [2019-10-13 19:01:54,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2019-10-13 19:01:54,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 808 transitions. [2019-10-13 19:01:54,858 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 808 transitions. Word has length 26 [2019-10-13 19:01:54,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:01:54,858 INFO L462 AbstractCegarLoop]: Abstraction has 587 states and 808 transitions. [2019-10-13 19:01:54,858 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:01:54,859 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 808 transitions. [2019-10-13 19:01:54,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-13 19:01:54,865 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:01:54,865 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] [2019-10-13 19:01:54,865 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:01:54,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:01:54,866 INFO L82 PathProgramCache]: Analyzing trace with hash -633709261, now seen corresponding path program 1 times [2019-10-13 19:01:54,866 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:01:54,866 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839045814] [2019-10-13 19:01:54,866 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:01:54,866 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:01:54,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:01:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:01:56,537 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 514 [2019-10-13 19:01:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:01:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:01:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:01:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:01:56,942 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 19:01:56,943 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839045814] [2019-10-13 19:01:56,943 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:01:56,943 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:01:56,943 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718502252] [2019-10-13 19:01:56,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:01:56,945 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:01:56,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:01:56,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:01:56,946 INFO L87 Difference]: Start difference. First operand 587 states and 808 transitions. Second operand 7 states. [2019-10-13 19:01:58,453 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 517 [2019-10-13 19:02:05,714 WARN L191 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 519