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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 22:20:08,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 22:20:08,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 22:20:08,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 22:20:08,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 22:20:08,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 22:20:08,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 22:20:08,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 22:20:08,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 22:20:08,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 22:20:08,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 22:20:08,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 22:20:08,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 22:20:08,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 22:20:08,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 22:20:08,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 22:20:08,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 22:20:08,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 22:20:08,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 22:20:08,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 22:20:08,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 22:20:08,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 22:20:08,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 22:20:08,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 22:20:08,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 22:20:08,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 22:20:08,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 22:20:08,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 22:20:08,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 22:20:08,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 22:20:08,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 22:20:08,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 22:20:08,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 22:20:08,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 22:20:08,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 22:20:08,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 22:20:08,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 22:20:08,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 22:20:08,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 22:20:08,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 22:20:08,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 22:20:08,862 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 22:20:08,884 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 22:20:08,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 22:20:08,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 22:20:08,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 22:20:08,887 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 22:20:08,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 22:20:08,888 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 22:20:08,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 22:20:08,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 22:20:08,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 22:20:08,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 22:20:08,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 22:20:08,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 22:20:08,890 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 22:20:08,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 22:20:08,891 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 22:20:08,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 22:20:08,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 22:20:08,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 22:20:08,891 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 22:20:08,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 22:20:08,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 22:20:08,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 22:20:08,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 22:20:08,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 22:20:08,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 22:20:08,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 22:20:08,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 22:20:08,894 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 22:20:09,191 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 22:20:09,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 22:20:09,208 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 22:20:09,210 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 22:20:09,210 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 22:20:09,211 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2019-10-14 22:20:09,271 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce7d1f472/48c4f96e669146be94002cc22539284d/FLAGdd914b2a3 [2019-10-14 22:20:10,023 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 22:20:10,024 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2019-10-14 22:20:10,062 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce7d1f472/48c4f96e669146be94002cc22539284d/FLAGdd914b2a3 [2019-10-14 22:20:10,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce7d1f472/48c4f96e669146be94002cc22539284d [2019-10-14 22:20:10,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 22:20:10,106 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 22:20:10,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 22:20:10,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 22:20:10,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 22:20:10,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:20:10" (1/1) ... [2019-10-14 22:20:10,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a4b2c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:10, skipping insertion in model container [2019-10-14 22:20:10,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:20:10" (1/1) ... [2019-10-14 22:20:10,125 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 22:20:10,245 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 22:20:11,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:20:11,417 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 22:20:11,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:20:11,916 INFO L192 MainTranslator]: Completed translation [2019-10-14 22:20:11,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:11 WrapperNode [2019-10-14 22:20:11,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 22:20:11,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 22:20:11,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 22:20:11,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 22:20:11,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:11" (1/1) ... [2019-10-14 22:20:11,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:11" (1/1) ... [2019-10-14 22:20:12,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:11" (1/1) ... [2019-10-14 22:20:12,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:11" (1/1) ... [2019-10-14 22:20:12,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:11" (1/1) ... [2019-10-14 22:20:12,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:11" (1/1) ... [2019-10-14 22:20:12,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:11" (1/1) ... [2019-10-14 22:20:12,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 22:20:12,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 22:20:12,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 22:20:12,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 22:20:12,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:11" (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 22:20:12,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 22:20:12,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 22:20:12,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-14 22:20:12,269 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2019-10-14 22:20:12,270 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2019-10-14 22:20:12,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2019-10-14 22:20:12,271 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2019-10-14 22:20:12,271 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2019-10-14 22:20:12,272 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-10-14 22:20:12,272 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-10-14 22:20:12,272 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-14 22:20:12,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-14 22:20:12,273 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-14 22:20:12,273 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-14 22:20:12,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-14 22:20:12,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-14 22:20:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-14 22:20:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-14 22:20:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-14 22:20:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-14 22:20:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-14 22:20:12,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-14 22:20:12,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-14 22:20:12,278 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-14 22:20:12,278 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2019-10-14 22:20:12,278 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2019-10-14 22:20:12,278 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2019-10-14 22:20:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2019-10-14 22:20:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2019-10-14 22:20:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2019-10-14 22:20:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2019-10-14 22:20:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2019-10-14 22:20:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2019-10-14 22:20:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2019-10-14 22:20:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2019-10-14 22:20:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2019-10-14 22:20:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2019-10-14 22:20:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2019-10-14 22:20:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2019-10-14 22:20:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2019-10-14 22:20:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 22:20:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_2 [2019-10-14 22:20:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_3 [2019-10-14 22:20:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_4 [2019-10-14 22:20:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-10-14 22:20:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-10-14 22:20:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-10-14 22:20:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-10-14 22:20:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-10-14 22:20:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-10-14 22:20:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-10-14 22:20:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-10-14 22:20:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-10-14 22:20:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-10-14 22:20:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-10-14 22:20:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-10-14 22:20:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-10-14 22:20:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-10-14 22:20:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-10-14 22:20:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-10-14 22:20:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-14 22:20:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-14 22:20:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-10-14 22:20:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-10-14 22:20:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2019-10-14 22:20:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2019-10-14 22:20:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-14 22:20:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-10-14 22:20:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2019-10-14 22:20:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2019-10-14 22:20:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-14 22:20:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-14 22:20:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2019-10-14 22:20:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2019-10-14 22:20:12,290 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2019-10-14 22:20:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-14 22:20:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-10-14 22:20:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-14 22:20:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-14 22:20:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-14 22:20:12,292 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-14 22:20:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 22:20:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-14 22:20:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-14 22:20:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-14 22:20:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-10-14 22:20:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-10-14 22:20:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2019-10-14 22:20:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2019-10-14 22:20:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2019-10-14 22:20:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2019-10-14 22:20:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-14 22:20:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2019-10-14 22:20:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2019-10-14 22:20:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-14 22:20:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2019-10-14 22:20:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-10-14 22:20:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-10-14 22:20:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-14 22:20:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-14 22:20:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_2 [2019-10-14 22:20:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-14 22:20:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_3 [2019-10-14 22:20:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_4 [2019-10-14 22:20:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2019-10-14 22:20:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2019-10-14 22:20:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-14 22:20:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-14 22:20:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-14 22:20:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-14 22:20:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-14 22:20:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 22:20:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-14 22:20:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 22:20:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-14 22:20:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-14 22:20:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 22:20:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 22:20:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-14 22:20:12,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-14 22:20:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-14 22:20:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-14 22:20:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-14 22:20:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-14 22:20:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-14 22:20:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-14 22:20:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2019-10-14 22:20:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2019-10-14 22:20:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2019-10-14 22:20:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2019-10-14 22:20:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2019-10-14 22:20:12,306 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-14 22:20:12,306 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-10-14 22:20:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2019-10-14 22:20:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-10-14 22:20:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2019-10-14 22:20:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2019-10-14 22:20:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2019-10-14 22:20:12,308 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2019-10-14 22:20:12,309 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2019-10-14 22:20:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2019-10-14 22:20:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2019-10-14 22:20:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2019-10-14 22:20:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2019-10-14 22:20:12,319 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2019-10-14 22:20:12,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 22:20:12,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 22:20:12,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 22:20:12,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 22:20:12,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 22:20:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 22:20:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2019-10-14 22:20:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2019-10-14 22:20:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2019-10-14 22:20:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-14 22:20:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-14 22:20:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 22:20:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-10-14 22:20:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-10-14 22:20:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-10-14 22:20:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-10-14 22:20:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-10-14 22:20:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-10-14 22:20:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-10-14 22:20:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-10-14 22:20:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-10-14 22:20:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-14 22:20:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-10-14 22:20:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-10-14 22:20:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-10-14 22:20:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-10-14 22:20:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-10-14 22:20:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-10-14 22:20:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-10-14 22:20:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-14 22:20:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 22:20:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 22:20:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 22:20:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 22:20:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-14 22:20:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-14 22:20:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-14 22:20:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-14 22:20:13,289 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-14 22:20:15,584 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-10-14 22:20:15,922 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 22:20:15,922 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 22:20:15,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:20:15 BoogieIcfgContainer [2019-10-14 22:20:15,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 22:20:15,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 22:20:15,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 22:20:15,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 22:20:15,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:20:10" (1/3) ... [2019-10-14 22:20:15,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a21d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:20:15, skipping insertion in model container [2019-10-14 22:20:15,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:20:11" (2/3) ... [2019-10-14 22:20:15,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a21d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:20:15, skipping insertion in model container [2019-10-14 22:20:15,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:20:15" (3/3) ... [2019-10-14 22:20:15,936 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2019-10-14 22:20:15,947 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 22:20:15,968 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 22:20:15,981 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 22:20:16,018 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 22:20:16,018 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 22:20:16,018 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 22:20:16,018 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 22:20:16,018 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 22:20:16,018 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 22:20:16,019 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 22:20:16,019 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 22:20:16,055 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states. [2019-10-14 22:20:16,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-14 22:20:16,069 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:20:16,071 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 22:20:16,074 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:20:16,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:20:16,079 INFO L82 PathProgramCache]: Analyzing trace with hash 352217831, now seen corresponding path program 1 times [2019-10-14 22:20:16,090 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:20:16,090 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635341702] [2019-10-14 22:20:16,091 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:20:16,091 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:20:16,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:20:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:20:19,049 WARN L191 SmtUtils]: Spent 2.23 s on a formula simplification that was a NOOP. DAG size: 556 [2019-10-14 22:20:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:20:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:20:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:20:19,155 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 22:20:19,156 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635341702] [2019-10-14 22:20:19,157 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:20:19,157 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 22:20:19,157 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62035792] [2019-10-14 22:20:19,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 22:20:19,162 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:20:19,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 22:20:19,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 22:20:19,178 INFO L87 Difference]: Start difference. First operand 602 states. Second operand 5 states. [2019-10-14 22:20:24,853 WARN L191 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 558 [2019-10-14 22:20:36,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:20:36,516 INFO L93 Difference]: Finished difference Result 1363 states and 1956 transitions. [2019-10-14 22:20:36,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 22:20:36,519 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-10-14 22:20:36,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:20:36,546 INFO L225 Difference]: With dead ends: 1363 [2019-10-14 22:20:36,547 INFO L226 Difference]: Without dead ends: 808 [2019-10-14 22:20:36,563 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-14 22:20:36,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2019-10-14 22:20:36,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 595. [2019-10-14 22:20:36,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2019-10-14 22:20:36,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 820 transitions. [2019-10-14 22:20:36,795 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 820 transitions. Word has length 26 [2019-10-14 22:20:36,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:20:36,796 INFO L462 AbstractCegarLoop]: Abstraction has 595 states and 820 transitions. [2019-10-14 22:20:36,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 22:20:36,796 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 820 transitions. [2019-10-14 22:20:36,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-14 22:20:36,799 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:20:36,799 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 22:20:36,800 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:20:36,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:20:36,800 INFO L82 PathProgramCache]: Analyzing trace with hash 597532555, now seen corresponding path program 1 times [2019-10-14 22:20:36,800 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:20:36,801 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821132619] [2019-10-14 22:20:36,801 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:20:36,801 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:20:36,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:20:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:20:38,987 WARN L191 SmtUtils]: Spent 1.98 s on a formula simplification that was a NOOP. DAG size: 556 [2019-10-14 22:20:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:20:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:20:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:20:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:20:39,333 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 22:20:39,334 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821132619] [2019-10-14 22:20:39,334 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:20:39,334 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 22:20:39,334 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587779404] [2019-10-14 22:20:39,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 22:20:39,336 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:20:39,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 22:20:39,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-14 22:20:39,337 INFO L87 Difference]: Start difference. First operand 595 states and 820 transitions. Second operand 7 states. [2019-10-14 22:20:41,389 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 559 [2019-10-14 22:20:47,754 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 561