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 0.1.24-13a467a-m [2019-10-14 22:29:38,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 22:29:38,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 22:29:38,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 22:29:38,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 22:29:38,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 22:29:38,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 22:29:38,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 22:29:38,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 22:29:38,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 22:29:38,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 22:29:38,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 22:29:38,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 22:29:38,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 22:29:38,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 22:29:38,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 22:29:38,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 22:29:38,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 22:29:38,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 22:29:38,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 22:29:38,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 22:29:38,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 22:29:38,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 22:29:38,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 22:29:38,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 22:29:38,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 22:29:38,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 22:29:38,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 22:29:38,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 22:29:38,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 22:29:38,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 22:29:38,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 22:29:38,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 22:29:38,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 22:29:38,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 22:29:38,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 22:29:38,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 22:29:38,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 22:29:38,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 22:29:38,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 22:29:38,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 22:29:38,323 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 22:29:38,345 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 22:29:38,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 22:29:38,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 22:29:38,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 22:29:38,348 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 22:29:38,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 22:29:38,348 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 22:29:38,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 22:29:38,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 22:29:38,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 22:29:38,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 22:29:38,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 22:29:38,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 22:29:38,350 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 22:29:38,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 22:29:38,350 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 22:29:38,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 22:29:38,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 22:29:38,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 22:29:38,353 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 22:29:38,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 22:29:38,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 22:29:38,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 22:29:38,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 22:29:38,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 22:29:38,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 22:29:38,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 22:29:38,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 22:29:38,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 22:29:38,660 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 22:29:38,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 22:29:38,678 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 22:29:38,679 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 22:29:38,680 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 22:29:38,681 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2019-10-14 22:29:38,759 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7be23b4b4/67625acea199454c843b7fb44017df9b/FLAG45d5c5926 [2019-10-14 22:29:39,539 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 22:29:39,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2019-10-14 22:29:39,580 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7be23b4b4/67625acea199454c843b7fb44017df9b/FLAG45d5c5926 [2019-10-14 22:29:39,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7be23b4b4/67625acea199454c843b7fb44017df9b [2019-10-14 22:29:39,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 22:29:39,649 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 22:29:39,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 22:29:39,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 22:29:39,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 22:29:39,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:29:39" (1/1) ... [2019-10-14 22:29:39,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70734585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:39, skipping insertion in model container [2019-10-14 22:29:39,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:29:39" (1/1) ... [2019-10-14 22:29:39,664 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 22:29:39,790 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 22:29:41,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:29:41,203 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 22:29:41,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:29:41,540 INFO L192 MainTranslator]: Completed translation [2019-10-14 22:29:41,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41 WrapperNode [2019-10-14 22:29:41,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 22:29:41,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 22:29:41,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 22:29:41,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 22:29:41,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (1/1) ... [2019-10-14 22:29:41,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (1/1) ... [2019-10-14 22:29:41,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (1/1) ... [2019-10-14 22:29:41,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (1/1) ... [2019-10-14 22:29:41,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (1/1) ... [2019-10-14 22:29:41,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (1/1) ... [2019-10-14 22:29:41,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (1/1) ... [2019-10-14 22:29:41,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 22:29:41,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 22:29:41,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 22:29:41,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 22:29:41,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 22:29:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 22:29:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 22:29:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2019-10-14 22:29:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2019-10-14 22:29:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2019-10-14 22:29:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2019-10-14 22:29:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2019-10-14 22:29:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-10-14 22:29:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-10-14 22:29:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-14 22:29:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-14 22:29:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-14 22:29:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-14 22:29:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-14 22:29:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-14 22:29:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-14 22:29:41,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-14 22:29:41,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-14 22:29:41,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-14 22:29:41,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-14 22:29:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-14 22:29:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-14 22:29:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-14 22:29:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2019-10-14 22:29:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2019-10-14 22:29:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2019-10-14 22:29:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2019-10-14 22:29:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2019-10-14 22:29:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2019-10-14 22:29:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2019-10-14 22:29:41,904 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2019-10-14 22:29:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2019-10-14 22:29:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2019-10-14 22:29:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2019-10-14 22:29:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2019-10-14 22:29:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2019-10-14 22:29:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2019-10-14 22:29:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2019-10-14 22:29:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2019-10-14 22:29:41,906 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 22:29:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-10-14 22:29:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-10-14 22:29:41,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-10-14 22:29:41,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-10-14 22:29:41,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-10-14 22:29:41,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_12 [2019-10-14 22:29:41,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_13 [2019-10-14 22:29:41,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_14 [2019-10-14 22:29:41,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-10-14 22:29:41,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-14 22:29:41,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-10-14 22:29:41,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-10-14 22:29:41,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-10-14 22:29:41,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-14 22:29:41,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-14 22:29:41,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-14 22:29:41,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-14 22:29:41,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-10-14 22:29:41,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-14 22:29:41,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-10-14 22:29:41,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-10-14 22:29:41,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-10-14 22:29:41,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-10-14 22:29:41,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-10-14 22:29:41,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-14 22:29:41,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-14 22:29:41,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-10-14 22:29:41,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-10-14 22:29:41,914 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2019-10-14 22:29:41,914 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2019-10-14 22:29:41,914 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-14 22:29:41,914 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-10-14 22:29:41,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2019-10-14 22:29:41,915 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2019-10-14 22:29:41,916 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-14 22:29:41,916 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2019-10-14 22:29:41,916 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2019-10-14 22:29:41,916 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2019-10-14 22:29:41,916 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-14 22:29:41,917 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-10-14 22:29:41,917 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-14 22:29:41,918 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-14 22:29:41,918 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-14 22:29:41,919 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-14 22:29:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 22:29:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-14 22:29:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-14 22:29:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-10-14 22:29:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-10-14 22:29:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2019-10-14 22:29:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2019-10-14 22:29:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2019-10-14 22:29:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2019-10-14 22:29:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-14 22:29:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2019-10-14 22:29:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2019-10-14 22:29:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-14 22:29:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2019-10-14 22:29:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-10-14 22:29:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-10-14 22:29:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-14 22:29:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-14 22:29:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-14 22:29:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-14 22:29:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-14 22:29:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-10-14 22:29:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-10-14 22:29:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-10-14 22:29:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-10-14 22:29:41,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-10-14 22:29:41,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-10-14 22:29:41,925 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 22:29:41,925 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-14 22:29:41,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 22:29:41,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-14 22:29:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-14 22:29:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 22:29:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 22:29:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-14 22:29:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-14 22:29:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-14 22:29:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-14 22:29:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-14 22:29:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-14 22:29:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-14 22:29:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-14 22:29:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2019-10-14 22:29:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2019-10-14 22:29:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2019-10-14 22:29:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2019-10-14 22:29:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2019-10-14 22:29:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-14 22:29:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-14 22:29:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_12 [2019-10-14 22:29:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-14 22:29:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_13 [2019-10-14 22:29:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_14 [2019-10-14 22:29:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2019-10-14 22:29:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2019-10-14 22:29:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-14 22:29:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-14 22:29:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-10-14 22:29:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2019-10-14 22:29:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-10-14 22:29:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2019-10-14 22:29:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2019-10-14 22:29:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2019-10-14 22:29:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2019-10-14 22:29:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2019-10-14 22:29:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2019-10-14 22:29:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2019-10-14 22:29:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2019-10-14 22:29:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2019-10-14 22:29:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2019-10-14 22:29:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 22:29:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 22:29:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 22:29:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 22:29:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 22:29:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 22:29:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2019-10-14 22:29:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2019-10-14 22:29:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2019-10-14 22:29:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-14 22:29:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-14 22:29:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 22:29:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-10-14 22:29:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-14 22:29:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-10-14 22:29:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-10-14 22:29:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-10-14 22:29:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-14 22:29:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-14 22:29:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-14 22:29:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-14 22:29:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-10-14 22:29:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-10-14 22:29:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-10-14 22:29:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-10-14 22:29:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-10-14 22:29:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-14 22:29:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 22:29:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 22:29:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 22:29:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 22:29:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-14 22:29:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-14 22:29:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-14 22:29:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-14 22:29:42,818 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-14 22:29:46,021 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 22:29:46,021 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 22:29:46,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:29:46 BoogieIcfgContainer [2019-10-14 22:29:46,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 22:29:46,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 22:29:46,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 22:29:46,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 22:29:46,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:29:39" (1/3) ... [2019-10-14 22:29:46,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467510d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:29:46, skipping insertion in model container [2019-10-14 22:29:46,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (2/3) ... [2019-10-14 22:29:46,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467510d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:29:46, skipping insertion in model container [2019-10-14 22:29:46,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:29:46" (3/3) ... [2019-10-14 22:29:46,036 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 [2019-10-14 22:29:46,047 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 22:29:46,058 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 22:29:46,073 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 22:29:46,114 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 22:29:46,114 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 22:29:46,114 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 22:29:46,115 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 22:29:46,115 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 22:29:46,115 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 22:29:46,115 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 22:29:46,115 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 22:29:46,163 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states. [2019-10-14 22:29:46,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-14 22:29:46,180 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:29:46,181 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] [2019-10-14 22:29:46,185 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:29:46,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:29:46,191 INFO L82 PathProgramCache]: Analyzing trace with hash -748247587, now seen corresponding path program 1 times [2019-10-14 22:29:46,203 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:29:46,203 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323463401] [2019-10-14 22:29:46,203 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:29:46,203 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:29:46,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:29:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:48,882 WARN L191 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 526 [2019-10-14 22:29:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:49,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 22:29:49,048 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323463401] [2019-10-14 22:29:49,049 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:29:49,049 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 22:29:49,049 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511396076] [2019-10-14 22:29:49,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 22:29:49,054 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:29:49,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 22:29:49,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-14 22:29:49,072 INFO L87 Difference]: Start difference. First operand 598 states. Second operand 6 states. [2019-10-14 22:29:56,025 WARN L191 SmtUtils]: Spent 1.84 s on a formula simplification that was a NOOP. DAG size: 528 [2019-10-14 22:30:06,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:30:06,594 INFO L93 Difference]: Finished difference Result 1363 states and 1940 transitions. [2019-10-14 22:30:06,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 22:30:06,597 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2019-10-14 22:30:06,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:30:06,624 INFO L225 Difference]: With dead ends: 1363 [2019-10-14 22:30:06,625 INFO L226 Difference]: Without dead ends: 810 [2019-10-14 22:30:06,636 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2019-10-14 22:30:06,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2019-10-14 22:30:06,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 597. [2019-10-14 22:30:06,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2019-10-14 22:30:06,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 818 transitions. [2019-10-14 22:30:06,866 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 818 transitions. Word has length 36 [2019-10-14 22:30:06,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:30:06,867 INFO L462 AbstractCegarLoop]: Abstraction has 597 states and 818 transitions. [2019-10-14 22:30:06,867 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 22:30:06,867 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 818 transitions. [2019-10-14 22:30:06,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-14 22:30:06,871 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:30:06,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 22:30:06,871 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:30:06,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:30:06,872 INFO L82 PathProgramCache]: Analyzing trace with hash 46199671, now seen corresponding path program 1 times [2019-10-14 22:30:06,872 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:30:06,872 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501682721] [2019-10-14 22:30:06,872 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:30:06,873 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:30:06,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:30:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:08,965 WARN L191 SmtUtils]: Spent 1.86 s on a formula simplification that was a NOOP. DAG size: 526 [2019-10-14 22:30:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 22:30:09,344 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501682721] [2019-10-14 22:30:09,345 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:30:09,345 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 22:30:09,345 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334663473] [2019-10-14 22:30:09,348 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 22:30:09,348 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:30:09,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 22:30:09,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-14 22:30:09,349 INFO L87 Difference]: Start difference. First operand 597 states and 818 transitions. Second operand 8 states. [2019-10-14 22:30:11,236 WARN L191 SmtUtils]: Spent 1.86 s on a formula simplification that was a NOOP. DAG size: 529 [2019-10-14 22:30:19,831 WARN L191 SmtUtils]: Spent 1.78 s on a formula simplification that was a NOOP. DAG size: 531