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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--misc--idmouse.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 02:11:30,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:11:30,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:11:30,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:11:30,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:11:30,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:11:30,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:11:30,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:11:30,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:11:30,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:11:30,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:11:30,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:11:30,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:11:30,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:11:30,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:11:30,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:11:30,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:11:30,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:11:30,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:11:30,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:11:30,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:11:30,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:11:30,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:11:30,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:11:30,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:11:30,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:11:30,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:11:30,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:11:30,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:11:30,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:11:30,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:11:30,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:11:30,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:11:30,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:11:30,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:11:30,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:11:30,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:11:30,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:11:30,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:11:30,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:11:30,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:11:30,363 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 [2019-10-15 02:11:30,380 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:11:30,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:11:30,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:11:30,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:11:30,381 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:11:30,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:11:30,382 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:11:30,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:11:30,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:11:30,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:11:30,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:11:30,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:11:30,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:11:30,386 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:11:30,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:11:30,386 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:11:30,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:11:30,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:11:30,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:11:30,387 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:11:30,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:11:30,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:11:30,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:11:30,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:11:30,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:11:30,388 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:11:30,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:11:30,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:11:30,389 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 02:11:30,702 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:11:30,718 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:11:30,723 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:11:30,725 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:11:30,725 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:11:30,726 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--misc--idmouse.ko-entry_point.cil.out.i [2019-10-15 02:11:30,791 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e742dcfce/093b2e0408e74479a44e84db1fcb834d/FLAG3a4e03c12 [2019-10-15 02:11:31,557 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:11:31,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--misc--idmouse.ko-entry_point.cil.out.i [2019-10-15 02:11:31,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e742dcfce/093b2e0408e74479a44e84db1fcb834d/FLAG3a4e03c12 [2019-10-15 02:11:31,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e742dcfce/093b2e0408e74479a44e84db1fcb834d [2019-10-15 02:11:31,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:11:31,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:11:31,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:11:31,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:11:31,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:11:31,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:11:31" (1/1) ... [2019-10-15 02:11:31,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60a82199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:31, skipping insertion in model container [2019-10-15 02:11:31,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:11:31" (1/1) ... [2019-10-15 02:11:31,703 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:11:31,795 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:11:33,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:11:33,187 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:11:33,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:11:33,605 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:11:33,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:33 WrapperNode [2019-10-15 02:11:33,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:11:33,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:11:33,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:11:33,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:11:33,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:33" (1/1) ... [2019-10-15 02:11:33,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:33" (1/1) ... [2019-10-15 02:11:33,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:33" (1/1) ... [2019-10-15 02:11:33,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:33" (1/1) ... [2019-10-15 02:11:33,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:33" (1/1) ... [2019-10-15 02:11:33,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:33" (1/1) ... [2019-10-15 02:11:33,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:33" (1/1) ... [2019-10-15 02:11:33,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:11:33,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:11:33,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:11:33,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:11:33,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:33" (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 [2019-10-15 02:11:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:11:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:11:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 02:11:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-10-15 02:11:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2019-10-15 02:11:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2019-10-15 02:11:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2019-10-15 02:11:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-15 02:11:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-15 02:11:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-15 02:11:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-15 02:11:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-15 02:11:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-15 02:11:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-15 02:11:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 02:11:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 02:11:33,908 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 02:11:33,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 02:11:33,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-15 02:11:33,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-15 02:11:33,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-15 02:11:33,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-15 02:11:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 02:11:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-15 02:11:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 02:11:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-15 02:11:33,911 INFO L138 BoogieDeclarations]: Found implementation of procedure idmouse_create_image [2019-10-15 02:11:33,912 INFO L138 BoogieDeclarations]: Found implementation of procedure idmouse_suspend [2019-10-15 02:11:33,912 INFO L138 BoogieDeclarations]: Found implementation of procedure idmouse_resume [2019-10-15 02:11:33,912 INFO L138 BoogieDeclarations]: Found implementation of procedure idmouse_delete [2019-10-15 02:11:33,912 INFO L138 BoogieDeclarations]: Found implementation of procedure idmouse_open [2019-10-15 02:11:33,912 INFO L138 BoogieDeclarations]: Found implementation of procedure idmouse_release [2019-10-15 02:11:33,912 INFO L138 BoogieDeclarations]: Found implementation of procedure idmouse_read [2019-10-15 02:11:33,913 INFO L138 BoogieDeclarations]: Found implementation of procedure idmouse_probe [2019-10-15 02:11:33,913 INFO L138 BoogieDeclarations]: Found implementation of procedure idmouse_disconnect [2019-10-15 02:11:33,913 INFO L138 BoogieDeclarations]: Found implementation of procedure idmouse_driver_init [2019-10-15 02:11:33,913 INFO L138 BoogieDeclarations]: Found implementation of procedure idmouse_driver_exit [2019-10-15 02:11:33,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-10-15 02:11:33,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2019-10-15 02:11:33,914 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:11:33,914 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-15 02:11:33,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_2 [2019-10-15 02:11:33,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_get_interface_3 [2019-10-15 02:11:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_put_interface_4 [2019-10-15 02:11:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_5 [2019-10-15 02:11:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_9 [2019-10-15 02:11:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_10 [2019-10-15 02:11:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-10-15 02:11:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-10-15 02:11:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-10-15 02:11:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-10-15 02:11:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-10-15 02:11:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-10-15 02:11:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-10-15 02:11:33,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-10-15 02:11:33,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-10-15 02:11:33,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-10-15 02:11:33,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-10-15 02:11:33,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-10-15 02:11:33,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-10-15 02:11:33,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-10-15 02:11:33,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-10-15 02:11:33,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-10-15 02:11:33,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 02:11:33,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-10-15 02:11:33,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-15 02:11:33,919 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-15 02:11:33,919 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2019-10-15 02:11:33,919 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-15 02:11:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 02:11:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-15 02:11:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 02:11:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2019-10-15 02:11:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2019-10-15 02:11:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-15 02:11:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-15 02:11:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2019-10-15 02:11:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_interface [2019-10-15 02:11:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2019-10-15 02:11:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-15 02:11:33,922 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 02:11:33,922 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 02:11:33,922 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-15 02:11:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-15 02:11:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 02:11:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:11:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 02:11:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 02:11:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-15 02:11:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-10-15 02:11:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:11:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2019-10-15 02:11:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2019-10-15 02:11:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2019-10-15 02:11:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-15 02:11:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-10-15 02:11:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-15 02:11:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-15 02:11:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-15 02:11:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-15 02:11:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-15 02:11:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 02:11:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-15 02:11:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-15 02:11:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-15 02:11:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2019-10-15 02:11:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2019-10-15 02:11:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-15 02:11:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:11:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-15 02:11:33,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_2 [2019-10-15 02:11:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_5 [2019-10-15 02:11:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-15 02:11:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_get_interface_3 [2019-10-15 02:11:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_put_interface_4 [2019-10-15 02:11:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_interface [2019-10-15 02:11:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-15 02:11:33,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_9 [2019-10-15 02:11:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-15 02:11:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_10 [2019-10-15 02:11:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2019-10-15 02:11:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2019-10-15 02:11:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-15 02:11:33,967 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2019-10-15 02:11:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-15 02:11:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-10-15 02:11:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-10-15 02:11:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-10-15 02:11:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-10-15 02:11:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-10-15 02:11:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 02:11:33,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 02:11:33,969 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 02:11:33,969 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 02:11:33,969 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 02:11:33,969 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:11:33,969 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 02:11:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:11:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2019-10-15 02:11:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_loff_t [2019-10-15 02:11:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 02:11:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 02:11:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 02:11:33,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:11:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-15 02:11:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-15 02:11:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-15 02:11:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-15 02:11:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-15 02:11:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 02:11:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-15 02:11:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-15 02:11:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-10-15 02:11:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2019-10-15 02:11:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:11:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure idmouse_read [2019-10-15 02:11:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure idmouse_open [2019-10-15 02:11:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure idmouse_release [2019-10-15 02:11:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure idmouse_probe [2019-10-15 02:11:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure idmouse_disconnect [2019-10-15 02:11:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure idmouse_suspend [2019-10-15 02:11:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure idmouse_resume [2019-10-15 02:11:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure idmouse_create_image [2019-10-15 02:11:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 02:11:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:11:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:11:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:11:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure idmouse_delete [2019-10-15 02:11:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure idmouse_driver_init [2019-10-15 02:11:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure idmouse_driver_exit [2019-10-15 02:11:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 02:11:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 02:11:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:11:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-15 02:11:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-10-15 02:11:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-10-15 02:11:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-10-15 02:11:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-10-15 02:11:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-10-15 02:11:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-10-15 02:11:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-10-15 02:11:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 02:11:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-10-15 02:11:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-10-15 02:11:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-10-15 02:11:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-10-15 02:11:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-15 02:11:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 02:11:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:11:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:11:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 02:11:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 02:11:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:11:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 02:11:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 02:11:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 02:11:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 02:11:34,599 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-15 02:11:35,204 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-10-15 02:11:36,625 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:11:36,626 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 02:11:36,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:11:36 BoogieIcfgContainer [2019-10-15 02:11:36,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:11:36,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:11:36,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:11:36,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:11:36,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:11:31" (1/3) ... [2019-10-15 02:11:36,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb5616a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:11:36, skipping insertion in model container [2019-10-15 02:11:36,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:33" (2/3) ... [2019-10-15 02:11:36,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb5616a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:11:36, skipping insertion in model container [2019-10-15 02:11:36,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:11:36" (3/3) ... [2019-10-15 02:11:36,637 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--misc--idmouse.ko-entry_point.cil.out.i [2019-10-15 02:11:36,647 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:11:36,657 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:11:36,670 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:11:36,701 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:11:36,701 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:11:36,701 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:11:36,701 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:11:36,701 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:11:36,702 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:11:36,702 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:11:36,702 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:11:36,734 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states. [2019-10-15 02:11:36,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-15 02:11:36,747 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:11:36,748 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-10-15 02:11:36,750 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:11:36,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:11:36,758 INFO L82 PathProgramCache]: Analyzing trace with hash 190529714, now seen corresponding path program 1 times [2019-10-15 02:11:36,769 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:11:36,770 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960879589] [2019-10-15 02:11:36,770 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:11:36,770 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:11:36,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:11:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:11:37,336 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 02:11:37,337 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960879589] [2019-10-15 02:11:37,339 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:11:37,339 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:11:37,339 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753854445] [2019-10-15 02:11:37,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:11:37,346 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:11:37,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:11:37,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:11:37,364 INFO L87 Difference]: Start difference. First operand 487 states. Second operand 3 states. [2019-10-15 02:11:37,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:11:37,665 INFO L93 Difference]: Finished difference Result 1268 states and 1655 transitions. [2019-10-15 02:11:37,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:11:37,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-15 02:11:37,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:11:37,707 INFO L225 Difference]: With dead ends: 1268 [2019-10-15 02:11:37,708 INFO L226 Difference]: Without dead ends: 811 [2019-10-15 02:11:37,716 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:11:37,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2019-10-15 02:11:37,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 808. [2019-10-15 02:11:37,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2019-10-15 02:11:37,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1036 transitions. [2019-10-15 02:11:37,895 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1036 transitions. Word has length 52 [2019-10-15 02:11:37,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:11:37,897 INFO L462 AbstractCegarLoop]: Abstraction has 808 states and 1036 transitions. [2019-10-15 02:11:37,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:11:37,897 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1036 transitions. [2019-10-15 02:11:37,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-15 02:11:37,903 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:11:37,903 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1] [2019-10-15 02:11:37,904 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:11:37,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:11:37,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1766450391, now seen corresponding path program 1 times [2019-10-15 02:11:37,905 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:11:37,905 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265248382] [2019-10-15 02:11:37,905 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:11:37,905 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:11:37,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:11:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:11:38,134 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 02:11:38,134 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265248382] [2019-10-15 02:11:38,134 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:11:38,135 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 02:11:38,135 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473835503] [2019-10-15 02:11:38,137 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:11:38,137 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:11:38,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:11:38,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:11:38,138 INFO L87 Difference]: Start difference. First operand 808 states and 1036 transitions. Second operand 4 states. [2019-10-15 02:11:38,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:11:38,307 INFO L93 Difference]: Finished difference Result 1600 states and 2053 transitions. [2019-10-15 02:11:38,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 02:11:38,308 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2019-10-15 02:11:38,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:11:38,316 INFO L225 Difference]: With dead ends: 1600 [2019-10-15 02:11:38,316 INFO L226 Difference]: Without dead ends: 809 [2019-10-15 02:11:38,320 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:11:38,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2019-10-15 02:11:38,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 809. [2019-10-15 02:11:38,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2019-10-15 02:11:38,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1037 transitions. [2019-10-15 02:11:38,389 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1037 transitions. Word has length 66 [2019-10-15 02:11:38,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:11:38,390 INFO L462 AbstractCegarLoop]: Abstraction has 809 states and 1037 transitions. [2019-10-15 02:11:38,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:11:38,390 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1037 transitions. [2019-10-15 02:11:38,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-10-15 02:11:38,402 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:11:38,402 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:11:38,403 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:11:38,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:11:38,403 INFO L82 PathProgramCache]: Analyzing trace with hash -568715554, now seen corresponding path program 1 times [2019-10-15 02:11:38,403 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:11:38,404 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604228565] [2019-10-15 02:11:38,404 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:11:38,404 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:11:38,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:11:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:11:38,632 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 02:11:38,632 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604228565] [2019-10-15 02:11:38,632 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929406466] [2019-10-15 02:11:38,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:11:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:11:39,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 02:11:39,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:11:39,223 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 02:11:39,223 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:11:39,492 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 02:11:39,493 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1696675512] [2019-10-15 02:11:39,523 INFO L162 IcfgInterpreter]: Started Sifa with 55 locations of interest [2019-10-15 02:11:39,523 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 02:11:39,530 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 02:11:39,539 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 02:11:39,540 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 02:11:48,012 WARN L191 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 1023 [2019-10-15 02:11:49,827 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-10-15 02:11:50,353 WARN L191 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-15 02:11:50,916 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-15 02:11:51,348 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-15 02:11:51,938 WARN L191 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-15 02:11:52,418 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-15 02:11:52,857 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-15 02:11:53,392 WARN L191 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-15 02:11:54,358 WARN L191 SmtUtils]: Spent 944.00 ms on a formula simplification. DAG size of input: 1166 DAG size of output: 1164 [2019-10-15 02:11:54,821 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-15 02:11:55,310 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-15 02:11:55,725 WARN L191 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-15 02:11:56,145 WARN L191 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-15 02:11:56,598 WARN L191 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-15 02:11:56,626 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1194 for LOIs [2019-10-15 02:11:57,080 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1194 [2019-10-15 02:11:57,536 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1194 [2019-10-15 02:11:58,159 WARN L191 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-15 02:11:58,634 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 1204 [2019-10-15 02:11:59,070 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1204 [2019-10-15 02:11:59,692 WARN L191 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-15 02:12:06,340 WARN L191 SmtUtils]: Spent 5.23 s on a formula simplification that was a NOOP. DAG size: 1077 [2019-10-15 02:12:07,663 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 2079 [2019-10-15 02:12:11,489 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 2076