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-f4eb214f-m [2019-10-13 18:21:10,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 18:21:10,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 18:21:10,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 18:21:10,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 18:21:10,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 18:21:10,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 18:21:10,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 18:21:10,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 18:21:10,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 18:21:10,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 18:21:10,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 18:21:10,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 18:21:10,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 18:21:10,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 18:21:10,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 18:21:10,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 18:21:10,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 18:21:10,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 18:21:10,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 18:21:10,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 18:21:10,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 18:21:10,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 18:21:10,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 18:21:10,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 18:21:10,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 18:21:10,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 18:21:10,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 18:21:10,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 18:21:10,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 18:21:10,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 18:21:10,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 18:21:10,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 18:21:10,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 18:21:10,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 18:21:10,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 18:21:10,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 18:21:10,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 18:21:11,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 18:21:11,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 18:21:11,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 18:21:11,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 18:21:11,023 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 18:21:11,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 18:21:11,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 18:21:11,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 18:21:11,026 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 18:21:11,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 18:21:11,027 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 18:21:11,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 18:21:11,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 18:21:11,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 18:21:11,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 18:21:11,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 18:21:11,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 18:21:11,029 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 18:21:11,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 18:21:11,029 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 18:21:11,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 18:21:11,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 18:21:11,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 18:21:11,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 18:21:11,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 18:21:11,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:21:11,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 18:21:11,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 18:21:11,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 18:21:11,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 18:21:11,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 18:21:11,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 18:21:11,032 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 18:21:11,344 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 18:21:11,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 18:21:11,363 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 18:21:11,364 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 18:21:11,365 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 18:21:11,365 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2019-10-13 18:21:11,449 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a4d0549b/811508943f7c4238b30c4d9e4dadd561/FLAG95916a6bb [2019-10-13 18:21:12,333 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 18:21:12,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2019-10-13 18:21:12,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a4d0549b/811508943f7c4238b30c4d9e4dadd561/FLAG95916a6bb [2019-10-13 18:21:12,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a4d0549b/811508943f7c4238b30c4d9e4dadd561 [2019-10-13 18:21:12,840 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 18:21:12,842 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 18:21:12,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 18:21:12,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 18:21:12,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 18:21:12,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:21:12" (1/1) ... [2019-10-13 18:21:12,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b858246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:12, skipping insertion in model container [2019-10-13 18:21:12,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:21:12" (1/1) ... [2019-10-13 18:21:12,861 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 18:21:13,032 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 18:21:14,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:21:14,654 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 18:21:14,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:21:15,061 INFO L192 MainTranslator]: Completed translation [2019-10-13 18:21:15,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:15 WrapperNode [2019-10-13 18:21:15,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 18:21:15,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 18:21:15,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 18:21:15,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 18:21:15,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:15" (1/1) ... [2019-10-13 18:21:15,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:15" (1/1) ... [2019-10-13 18:21:15,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:15" (1/1) ... [2019-10-13 18:21:15,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:15" (1/1) ... [2019-10-13 18:21:15,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:15" (1/1) ... [2019-10-13 18:21:15,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:15" (1/1) ... [2019-10-13 18:21:15,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:15" (1/1) ... [2019-10-13 18:21:15,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 18:21:15,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 18:21:15,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 18:21:15,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 18:21:15,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:21:15,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 18:21:15,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 18:21:15,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 18:21:15,413 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2019-10-13 18:21:15,413 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2019-10-13 18:21:15,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2019-10-13 18:21:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2019-10-13 18:21:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2019-10-13 18:21:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-10-13 18:21:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-10-13 18:21:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-13 18:21:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 18:21:15,417 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 18:21:15,417 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 18:21:15,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 18:21:15,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 18:21:15,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 18:21:15,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 18:21:15,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 18:21:15,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 18:21:15,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 18:21:15,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 18:21:15,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 18:21:15,425 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-13 18:21:15,425 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2019-10-13 18:21:15,425 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2019-10-13 18:21:15,426 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2019-10-13 18:21:15,426 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2019-10-13 18:21:15,426 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2019-10-13 18:21:15,426 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2019-10-13 18:21:15,427 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2019-10-13 18:21:15,427 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2019-10-13 18:21:15,427 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2019-10-13 18:21:15,428 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2019-10-13 18:21:15,428 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2019-10-13 18:21:15,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2019-10-13 18:21:15,428 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2019-10-13 18:21:15,429 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2019-10-13 18:21:15,429 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2019-10-13 18:21:15,429 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2019-10-13 18:21:15,430 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 18:21:15,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_2 [2019-10-13 18:21:15,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_3 [2019-10-13 18:21:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_4 [2019-10-13 18:21:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-10-13 18:21:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-10-13 18:21:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-10-13 18:21:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-10-13 18:21:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-10-13 18:21:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-10-13 18:21:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-10-13 18:21:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-10-13 18:21:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-10-13 18:21:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-10-13 18:21:15,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-10-13 18:21:15,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-10-13 18:21:15,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-10-13 18:21:15,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-10-13 18:21:15,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-10-13 18:21:15,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-10-13 18:21:15,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 18:21:15,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-13 18:21:15,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-10-13 18:21:15,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-10-13 18:21:15,437 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2019-10-13 18:21:15,438 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2019-10-13 18:21:15,438 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-13 18:21:15,439 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-10-13 18:21:15,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2019-10-13 18:21:15,439 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2019-10-13 18:21:15,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 18:21:15,440 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 18:21:15,440 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2019-10-13 18:21:15,440 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2019-10-13 18:21:15,441 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2019-10-13 18:21:15,442 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-13 18:21:15,442 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-10-13 18:21:15,442 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 18:21:15,442 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 18:21:15,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 18:21:15,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 18:21:15,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 18:21:15,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 18:21:15,445 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 18:21:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-13 18:21:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-10-13 18:21:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-10-13 18:21:15,447 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2019-10-13 18:21:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2019-10-13 18:21:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2019-10-13 18:21:15,449 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2019-10-13 18:21:15,449 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 18:21:15,449 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2019-10-13 18:21:15,450 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2019-10-13 18:21:15,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 18:21:15,450 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2019-10-13 18:21:15,451 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-10-13 18:21:15,451 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-10-13 18:21:15,451 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-13 18:21:15,451 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-13 18:21:15,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_2 [2019-10-13 18:21:15,452 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-13 18:21:15,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_3 [2019-10-13 18:21:15,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_4 [2019-10-13 18:21:15,452 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2019-10-13 18:21:15,453 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2019-10-13 18:21:15,453 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 18:21:15,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 18:21:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 18:21:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 18:21:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 18:21:15,454 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 18:21:15,455 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 18:21:15,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 18:21:15,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 18:21:15,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 18:21:15,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 18:21:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 18:21:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 18:21:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 18:21:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 18:21:15,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 18:21:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 18:21:15,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 18:21:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 18:21:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 18:21:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2019-10-13 18:21:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2019-10-13 18:21:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2019-10-13 18:21:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2019-10-13 18:21:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2019-10-13 18:21:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-13 18:21:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-10-13 18:21:15,463 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2019-10-13 18:21:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-10-13 18:21:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2019-10-13 18:21:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2019-10-13 18:21:15,464 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2019-10-13 18:21:15,465 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2019-10-13 18:21:15,466 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2019-10-13 18:21:15,470 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2019-10-13 18:21:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2019-10-13 18:21:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2019-10-13 18:21:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2019-10-13 18:21:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2019-10-13 18:21:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 18:21:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 18:21:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 18:21:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 18:21:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 18:21:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 18:21:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2019-10-13 18:21:15,484 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2019-10-13 18:21:15,485 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2019-10-13 18:21:15,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 18:21:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 18:21:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 18:21:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-10-13 18:21:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-10-13 18:21:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-10-13 18:21:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-10-13 18:21:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-10-13 18:21:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-10-13 18:21:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-10-13 18:21:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-10-13 18:21:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-10-13 18:21:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 18:21:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-10-13 18:21:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-10-13 18:21:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-10-13 18:21:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-10-13 18:21:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-10-13 18:21:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-10-13 18:21:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-10-13 18:21:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 18:21:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 18:21:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 18:21:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 18:21:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 18:21:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 18:21:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 18:21:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 18:21:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 18:21:16,495 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 18:21:18,929 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-10-13 18:21:19,306 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 18:21:19,306 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 18:21:19,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:21:19 BoogieIcfgContainer [2019-10-13 18:21:19,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 18:21:19,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 18:21:19,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 18:21:19,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 18:21:19,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:21:12" (1/3) ... [2019-10-13 18:21:19,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468e6894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:21:19, skipping insertion in model container [2019-10-13 18:21:19,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:21:15" (2/3) ... [2019-10-13 18:21:19,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468e6894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:21:19, skipping insertion in model container [2019-10-13 18:21:19,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:21:19" (3/3) ... [2019-10-13 18:21:19,321 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2019-10-13 18:21:19,330 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 18:21:19,341 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 18:21:19,355 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 18:21:19,394 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 18:21:19,395 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 18:21:19,395 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 18:21:19,395 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 18:21:19,395 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 18:21:19,395 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 18:21:19,395 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 18:21:19,395 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 18:21:19,439 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states. [2019-10-13 18:21:19,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-13 18:21:19,452 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:21:19,454 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 18:21:19,457 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:21:19,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:21:19,465 INFO L82 PathProgramCache]: Analyzing trace with hash 352217831, now seen corresponding path program 1 times [2019-10-13 18:21:19,475 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:21:19,476 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114265703] [2019-10-13 18:21:19,476 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:21:19,476 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:21:19,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:21:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:22,088 WARN L191 SmtUtils]: Spent 1.92 s on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 18:21:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:22,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:21:22,189 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114265703] [2019-10-13 18:21:22,190 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:21:22,190 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 18:21:22,190 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248426717] [2019-10-13 18:21:22,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 18:21:22,195 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:21:22,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 18:21:22,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 18:21:22,212 INFO L87 Difference]: Start difference. First operand 602 states. Second operand 5 states. [2019-10-13 18:21:27,486 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 18:21:37,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:21:37,474 INFO L93 Difference]: Finished difference Result 1363 states and 1956 transitions. [2019-10-13 18:21:37,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 18:21:37,475 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-10-13 18:21:37,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:21:37,517 INFO L225 Difference]: With dead ends: 1363 [2019-10-13 18:21:37,518 INFO L226 Difference]: Without dead ends: 808 [2019-10-13 18:21:37,536 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 18:21:37,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2019-10-13 18:21:37,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 595. [2019-10-13 18:21:37,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2019-10-13 18:21:37,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 820 transitions. [2019-10-13 18:21:37,768 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 820 transitions. Word has length 26 [2019-10-13 18:21:37,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:21:37,769 INFO L462 AbstractCegarLoop]: Abstraction has 595 states and 820 transitions. [2019-10-13 18:21:37,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 18:21:37,769 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 820 transitions. [2019-10-13 18:21:37,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-13 18:21:37,772 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:21:37,773 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 18:21:37,773 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:21:37,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:21:37,773 INFO L82 PathProgramCache]: Analyzing trace with hash 597532555, now seen corresponding path program 1 times [2019-10-13 18:21:37,774 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:21:37,774 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095311162] [2019-10-13 18:21:37,774 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:21:37,774 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:21:37,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:21:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:39,636 WARN L191 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 18:21:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:21:40,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:21:40,059 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095311162] [2019-10-13 18:21:40,060 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:21:40,060 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 18:21:40,060 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827252561] [2019-10-13 18:21:40,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 18:21:40,062 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:21:40,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 18:21:40,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 18:21:40,063 INFO L87 Difference]: Start difference. First operand 595 states and 820 transitions. Second operand 7 states. [2019-10-13 18:21:41,765 WARN L191 SmtUtils]: Spent 1.66 s on a formula simplification that was a NOOP. DAG size: 559 [2019-10-13 18:21:48,144 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 561