/usr/bin/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-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 20:02:31,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 20:02:31,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 20:02:31,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 20:02:31,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 20:02:31,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 20:02:32,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 20:02:32,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 20:02:32,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 20:02:32,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 20:02:32,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 20:02:32,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 20:02:32,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 20:02:32,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 20:02:32,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 20:02:32,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 20:02:32,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 20:02:32,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 20:02:32,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 20:02:32,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 20:02:32,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 20:02:32,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 20:02:32,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 20:02:32,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 20:02:32,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 20:02:32,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 20:02:32,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 20:02:32,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 20:02:32,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 20:02:32,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 20:02:32,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 20:02:32,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 20:02:32,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 20:02:32,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 20:02:32,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 20:02:32,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 20:02:32,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 20:02:32,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 20:02:32,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 20:02:32,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 20:02:32,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 20:02:32,035 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 [2019-11-06 20:02:32,061 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 20:02:32,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 20:02:32,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 20:02:32,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 20:02:32,063 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 20:02:32,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 20:02:32,064 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 20:02:32,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 20:02:32,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 20:02:32,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 20:02:32,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 20:02:32,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 20:02:32,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 20:02:32,066 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 20:02:32,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 20:02:32,066 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 20:02:32,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 20:02:32,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 20:02:32,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 20:02:32,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 20:02:32,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 20:02:32,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 20:02:32,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 20:02:32,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 20:02:32,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 20:02:32,069 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 20:02:32,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 20:02:32,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 20:02:32,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 20:02:32,329 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 20:02:32,347 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 20:02:32,350 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 20:02:32,351 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 20:02:32,352 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 20:02:32,352 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2019-11-06 20:02:32,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c679e386/5b34ad27bde940f8a01ae19d4dd75b70/FLAG227e993cb [2019-11-06 20:02:33,182 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 20:02:33,183 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2019-11-06 20:02:33,224 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c679e386/5b34ad27bde940f8a01ae19d4dd75b70/FLAG227e993cb [2019-11-06 20:02:33,274 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c679e386/5b34ad27bde940f8a01ae19d4dd75b70 [2019-11-06 20:02:33,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 20:02:33,285 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 20:02:33,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 20:02:33,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 20:02:33,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 20:02:33,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:02:33" (1/1) ... [2019-11-06 20:02:33,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a31779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:33, skipping insertion in model container [2019-11-06 20:02:33,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:02:33" (1/1) ... [2019-11-06 20:02:33,301 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 20:02:33,423 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 20:02:35,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 20:02:35,088 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 20:02:35,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 20:02:35,448 INFO L192 MainTranslator]: Completed translation [2019-11-06 20:02:35,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:35 WrapperNode [2019-11-06 20:02:35,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 20:02:35,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 20:02:35,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 20:02:35,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 20:02:35,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:35" (1/1) ... [2019-11-06 20:02:35,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:35" (1/1) ... [2019-11-06 20:02:35,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:35" (1/1) ... [2019-11-06 20:02:35,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:35" (1/1) ... [2019-11-06 20:02:35,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:35" (1/1) ... [2019-11-06 20:02:35,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:35" (1/1) ... [2019-11-06 20:02:35,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:35" (1/1) ... [2019-11-06 20:02:35,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 20:02:35,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 20:02:35,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 20:02:35,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 20:02:35,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:35" (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 [2019-11-06 20:02:35,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 20:02:35,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 20:02:35,745 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2019-11-06 20:02:35,745 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2019-11-06 20:02:35,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2019-11-06 20:02:35,746 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2019-11-06 20:02:35,746 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2019-11-06 20:02:35,746 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-11-06 20:02:35,746 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-11-06 20:02:35,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-11-06 20:02:35,747 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-11-06 20:02:35,747 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-11-06 20:02:35,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-06 20:02:35,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-06 20:02:35,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-11-06 20:02:35,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-11-06 20:02:35,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-11-06 20:02:35,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-11-06 20:02:35,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-11-06 20:02:35,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-11-06 20:02:35,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-11-06 20:02:35,752 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-11-06 20:02:35,752 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-11-06 20:02:35,752 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2019-11-06 20:02:35,752 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2019-11-06 20:02:35,752 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2019-11-06 20:02:35,752 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2019-11-06 20:02:35,752 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2019-11-06 20:02:35,753 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2019-11-06 20:02:35,753 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2019-11-06 20:02:35,754 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2019-11-06 20:02:35,754 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2019-11-06 20:02:35,754 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2019-11-06 20:02:35,754 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2019-11-06 20:02:35,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2019-11-06 20:02:35,754 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2019-11-06 20:02:35,755 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2019-11-06 20:02:35,755 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2019-11-06 20:02:35,755 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2019-11-06 20:02:35,755 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 20:02:35,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-11-06 20:02:35,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-11-06 20:02:35,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-11-06 20:02:35,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-11-06 20:02:35,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-11-06 20:02:35,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_12 [2019-11-06 20:02:35,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_13 [2019-11-06 20:02:35,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_14 [2019-11-06 20:02:35,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-11-06 20:02:35,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-11-06 20:02:35,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-11-06 20:02:35,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-11-06 20:02:35,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-11-06 20:02:35,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-11-06 20:02:35,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-11-06 20:02:35,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-11-06 20:02:35,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-11-06 20:02:35,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-11-06 20:02:35,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-11-06 20:02:35,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-11-06 20:02:35,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-11-06 20:02:35,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-11-06 20:02:35,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-11-06 20:02:35,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-11-06 20:02:35,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-11-06 20:02:35,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-11-06 20:02:35,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-11-06 20:02:35,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-11-06 20:02:35,760 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2019-11-06 20:02:35,760 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2019-11-06 20:02:35,760 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-11-06 20:02:35,760 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-11-06 20:02:35,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2019-11-06 20:02:35,760 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2019-11-06 20:02:35,761 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-11-06 20:02:35,761 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2019-11-06 20:02:35,762 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2019-11-06 20:02:35,762 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2019-11-06 20:02:35,762 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-11-06 20:02:35,762 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-11-06 20:02:35,763 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-11-06 20:02:35,763 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-11-06 20:02:35,763 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-06 20:02:35,764 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-06 20:02:35,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 20:02:35,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-11-06 20:02:35,764 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-11-06 20:02:35,765 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-11-06 20:02:35,765 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-11-06 20:02:35,765 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2019-11-06 20:02:35,766 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2019-11-06 20:02:35,766 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2019-11-06 20:02:35,766 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2019-11-06 20:02:35,766 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-06 20:02:35,766 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2019-11-06 20:02:35,766 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2019-11-06 20:02:35,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-06 20:02:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2019-11-06 20:02:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-11-06 20:02:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-11-06 20:02:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-06 20:02:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-06 20:02:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-11-06 20:02:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-11-06 20:02:35,767 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-11-06 20:02:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-11-06 20:02:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-11-06 20:02:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-11-06 20:02:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-11-06 20:02:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-11-06 20:02:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-11-06 20:02:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 20:02:35,769 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-06 20:02:35,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 20:02:35,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-11-06 20:02:35,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-06 20:02:35,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-06 20:02:35,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 20:02:35,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-06 20:02:35,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-06 20:02:35,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-11-06 20:02:35,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-11-06 20:02:35,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-11-06 20:02:35,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-11-06 20:02:35,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-11-06 20:02:35,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-11-06 20:02:35,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2019-11-06 20:02:35,772 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2019-11-06 20:02:35,772 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2019-11-06 20:02:35,772 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2019-11-06 20:02:35,772 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2019-11-06 20:02:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-11-06 20:02:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-11-06 20:02:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_12 [2019-11-06 20:02:35,773 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-11-06 20:02:35,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_13 [2019-11-06 20:02:35,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_14 [2019-11-06 20:02:35,774 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2019-11-06 20:02:35,774 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2019-11-06 20:02:35,775 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-11-06 20:02:35,777 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-11-06 20:02:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-11-06 20:02:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2019-11-06 20:02:35,779 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-11-06 20:02:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2019-11-06 20:02:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2019-11-06 20:02:35,785 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2019-11-06 20:02:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2019-11-06 20:02:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2019-11-06 20:02:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2019-11-06 20:02:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2019-11-06 20:02:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2019-11-06 20:02:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2019-11-06 20:02:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2019-11-06 20:02:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 20:02:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 20:02:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 20:02:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 20:02:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 20:02:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 20:02:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2019-11-06 20:02:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2019-11-06 20:02:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2019-11-06 20:02:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-11-06 20:02:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-11-06 20:02:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 20:02:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-11-06 20:02:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-11-06 20:02:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-11-06 20:02:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-11-06 20:02:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-11-06 20:02:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-11-06 20:02:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-11-06 20:02:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-11-06 20:02:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-11-06 20:02:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-11-06 20:02:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-11-06 20:02:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-11-06 20:02:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-11-06 20:02:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-11-06 20:02:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-11-06 20:02:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 20:02:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 20:02:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 20:02:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 20:02:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-06 20:02:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-11-06 20:02:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-06 20:02:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-06 20:02:36,496 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-11-06 20:02:38,993 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 20:02:38,993 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 20:02:38,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:02:38 BoogieIcfgContainer [2019-11-06 20:02:38,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 20:02:38,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 20:02:38,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 20:02:39,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 20:02:39,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:02:33" (1/3) ... [2019-11-06 20:02:39,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa96499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:02:39, skipping insertion in model container [2019-11-06 20:02:39,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:35" (2/3) ... [2019-11-06 20:02:39,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa96499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:02:39, skipping insertion in model container [2019-11-06 20:02:39,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:02:38" (3/3) ... [2019-11-06 20:02:39,006 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2019-11-06 20:02:39,015 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 20:02:39,027 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 20:02:39,041 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 20:02:39,082 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 20:02:39,082 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 20:02:39,082 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 20:02:39,083 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 20:02:39,083 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 20:02:39,083 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 20:02:39,083 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 20:02:39,083 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 20:02:39,128 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states. [2019-11-06 20:02:39,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-06 20:02:39,144 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 20:02:39,146 INFO L410 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] [2019-11-06 20:02:39,148 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 20:02:39,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 20:02:39,155 INFO L82 PathProgramCache]: Analyzing trace with hash -748247587, now seen corresponding path program 1 times [2019-11-06 20:02:39,164 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 20:02:39,165 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488603348] [2019-11-06 20:02:39,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 20:02:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 20:02:41,689 WARN L191 SmtUtils]: Spent 1.74 s on a formula simplification that was a NOOP. DAG size: 526 [2019-11-06 20:02:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 20:02:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 20:02:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 20:02:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 20:02:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 20:02:41,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 20:02:41,842 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488603348] [2019-11-06 20:02:41,842 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 20:02:41,843 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 20:02:41,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514931044] [2019-11-06 20:02:41,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 20:02:41,849 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 20:02:41,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 20:02:41,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-06 20:02:41,866 INFO L87 Difference]: Start difference. First operand 598 states. Second operand 6 states. [2019-11-06 20:02:48,531 WARN L191 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 528 [2019-11-06 20:02:57,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 20:02:57,870 INFO L93 Difference]: Finished difference Result 1363 states and 1940 transitions. [2019-11-06 20:02:57,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-06 20:02:57,872 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2019-11-06 20:02:57,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 20:02:57,896 INFO L225 Difference]: With dead ends: 1363 [2019-11-06 20:02:57,896 INFO L226 Difference]: Without dead ends: 810 [2019-11-06 20:02:57,907 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2019-11-06 20:02:57,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2019-11-06 20:02:58,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 597. [2019-11-06 20:02:58,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2019-11-06 20:02:58,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 818 transitions. [2019-11-06 20:02:58,143 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 818 transitions. Word has length 36 [2019-11-06 20:02:58,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 20:02:58,144 INFO L462 AbstractCegarLoop]: Abstraction has 597 states and 818 transitions. [2019-11-06 20:02:58,144 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 20:02:58,144 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 818 transitions. [2019-11-06 20:02:58,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-11-06 20:02:58,148 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 20:02:58,148 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 20:02:58,148 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 20:02:58,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 20:02:58,149 INFO L82 PathProgramCache]: Analyzing trace with hash 46199671, now seen corresponding path program 1 times [2019-11-06 20:02:58,149 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 20:02:58,149 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849278870] [2019-11-06 20:02:58,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 20:02:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 20:02:59,830 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 526 [2019-11-06 20:02:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 20:02:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 20:02:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 20:03:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 20:03:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 20:03:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 20:03:00,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 20:03:00,158 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849278870] [2019-11-06 20:03:00,158 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 20:03:00,158 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 20:03:00,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675699218] [2019-11-06 20:03:00,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 20:03:00,161 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 20:03:00,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 20:03:00,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-06 20:03:00,162 INFO L87 Difference]: Start difference. First operand 597 states and 818 transitions. Second operand 8 states. [2019-11-06 20:03:01,659 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification that was a NOOP. DAG size: 529 [2019-11-06 20:03:10,378 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 531