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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-uwb-i1480-dfu-i1480-dfu-usb.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 20:22:39,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:22:39,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:22:39,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:22:39,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:22:39,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:22:39,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:22:39,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:22:39,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:22:39,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:22:39,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:22:39,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:22:39,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:22:39,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:22:39,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:22:39,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:22:39,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:22:39,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:22:39,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:22:39,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:22:39,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:22:39,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:22:39,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:22:39,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:22:39,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:22:39,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:22:39,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:22:39,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:22:39,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:22:39,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:22:39,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:22:39,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:22:39,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:22:39,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:22:39,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:22:39,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:22:39,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:22:39,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:22:39,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:22:39,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:22:39,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:22:39,751 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 20:22:39,770 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:22:39,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:22:39,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:22:39,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:22:39,773 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:22:39,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:22:39,773 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:22:39,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:22:39,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:22:39,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:22:39,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:22:39,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:22:39,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:22:39,775 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:22:39,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:22:39,775 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:22:39,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:22:39,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:22:39,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:22:39,776 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:22:39,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:22:39,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:22:39,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:22:39,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:22:39,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:22:39,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:22:39,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:22:39,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:22:39,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 20:22:40,100 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:22:40,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:22:40,118 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:22:40,120 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:22:40,120 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:22:40,121 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-uwb-i1480-dfu-i1480-dfu-usb.ko.cil.out.i [2019-10-13 20:22:40,178 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a584e8537/f50457b4247e45dbaaa89afdc467dc11/FLAGce1c34a22 [2019-10-13 20:22:40,986 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:22:40,987 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-uwb-i1480-dfu-i1480-dfu-usb.ko.cil.out.i [2019-10-13 20:22:41,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a584e8537/f50457b4247e45dbaaa89afdc467dc11/FLAGce1c34a22 [2019-10-13 20:22:41,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a584e8537/f50457b4247e45dbaaa89afdc467dc11 [2019-10-13 20:22:41,049 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:22:41,050 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:22:41,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:22:41,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:22:41,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:22:41,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:22:41" (1/1) ... [2019-10-13 20:22:41,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ec0e894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:41, skipping insertion in model container [2019-10-13 20:22:41,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:22:41" (1/1) ... [2019-10-13 20:22:41,067 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:22:41,163 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:22:42,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:22:42,648 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:22:43,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:22:43,252 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:22:43,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:43 WrapperNode [2019-10-13 20:22:43,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:22:43,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:22:43,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:22:43,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:22:43,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:43" (1/1) ... [2019-10-13 20:22:43,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:43" (1/1) ... [2019-10-13 20:22:43,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:43" (1/1) ... [2019-10-13 20:22:43,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:43" (1/1) ... [2019-10-13 20:22:43,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:43" (1/1) ... [2019-10-13 20:22:43,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:43" (1/1) ... [2019-10-13 20:22:43,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:43" (1/1) ... [2019-10-13 20:22:43,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:22:43,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:22:43,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:22:43,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:22:43,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:22:43,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:22:43,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:22:43,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-13 20:22:43,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-13 20:22:43,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~int~TO~int [2019-10-13 20:22:43,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 20:22:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~X~int~TO~int [2019-10-13 20:22:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-10-13 20:22:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_rceb_check [2019-10-13 20:22:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_cmd [2019-10-13 20:22:43,562 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_print_state [2019-10-13 20:22:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_fw_upload [2019-10-13 20:22:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-10-13 20:22:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-10-13 20:22:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-13 20:22:43,563 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-13 20:22:43,564 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-13 20:22:43,564 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-13 20:22:43,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 20:22:43,565 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 20:22:43,565 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_hdrs_free [2019-10-13 20:22:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_hdr_load [2019-10-13 20:22:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_hdrs_load [2019-10-13 20:22:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_fw_cmp [2019-10-13 20:22:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_fw_hdrs_push [2019-10-13 20:22:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_fw_upload_enable [2019-10-13 20:22:43,566 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_fw_upload_disable [2019-10-13 20:22:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __mac_fw_upload [2019-10-13 20:22:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_pre_fw_upload [2019-10-13 20:22:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_cmd_reset [2019-10-13 20:22:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_fw_is_running_q [2019-10-13 20:22:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_mac_fw_upload [2019-10-13 20:22:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_mpi_write [2019-10-13 20:22:43,567 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_mpi_read [2019-10-13 20:22:43,568 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_phy_fw_upload [2019-10-13 20:22:43,568 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion___0 [2019-10-13 20:22:43,568 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-10-13 20:22:43,568 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-13 20:22:43,568 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-13 20:22:43,568 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-10-13 20:22:43,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-13 20:22:43,569 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 20:22:43,569 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_init [2019-10-13 20:22:43,569 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_usb_init [2019-10-13 20:22:43,569 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_usb_create [2019-10-13 20:22:43,569 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_usb_destroy [2019-10-13 20:22:43,569 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_usb_write [2019-10-13 20:22:43,570 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_usb_read [2019-10-13 20:22:43,570 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_usb_neep_cb [2019-10-13 20:22:43,570 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_usb_wait_init_done [2019-10-13 20:22:43,570 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_usb_cmd [2019-10-13 20:22:43,570 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_usb_probe [2019-10-13 20:22:43,570 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_dfu_driver_init [2019-10-13 20:22:43,570 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-10-13 20:22:43,571 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_dfu_driver_exit [2019-10-13 20:22:43,571 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-10-13 20:22:43,571 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:22:43,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 20:22:43,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 20:22:43,571 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-13 20:22:43,571 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-10-13 20:22:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 20:22:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2019-10-13 20:22:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 20:22:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-10-13 20:22:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure get_random_bytes [2019-10-13 20:22:43,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-13 20:22:43,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 20:22:43,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-10-13 20:22:43,573 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2019-10-13 20:22:43,573 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2019-10-13 20:22:43,573 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2019-10-13 20:22:43,573 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-13 20:22:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-13 20:22:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2019-10-13 20:22:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intf [2019-10-13 20:22:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-13 20:22:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2019-10-13 20:22:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2019-10-13 20:22:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-13 20:22:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2019-10-13 20:22:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2019-10-13 20:22:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-13 20:22:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible_timeout [2019-10-13 20:22:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 20:22:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 20:22:43,576 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 20:22:43,576 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 20:22:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:22:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 20:22:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-10-13 20:22:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:22:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible_timeout [2019-10-13 20:22:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_fw_upload [2019-10-13 20:22:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_pre_fw_upload [2019-10-13 20:22:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_mac_fw_upload [2019-10-13 20:22:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_phy_fw_upload [2019-10-13 20:22:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_cmd [2019-10-13 20:22:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_rceb_check [2019-10-13 20:22:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 20:22:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-13 20:22:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure get_random_bytes [2019-10-13 20:22:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 20:22:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:22:43,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:22:43,579 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-13 20:22:43,579 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-13 20:22:43,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:22:43,579 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_print_state [2019-10-13 20:22:43,579 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~int~TO~int [2019-10-13 20:22:43,579 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 20:22:43,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-10-13 20:22:43,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-10-13 20:22:43,580 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-13 20:22:43,580 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-13 20:22:43,580 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-13 20:22:43,580 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-13 20:22:43,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-10-13 20:22:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 20:22:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2019-10-13 20:22:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-10-13 20:22:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 20:22:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2019-10-13 20:22:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2019-10-13 20:22:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 20:22:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 20:22:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2019-10-13 20:22:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-10-13 20:22:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure fw_hdrs_free [2019-10-13 20:22:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure fw_hdr_load [2019-10-13 20:22:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:22:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure fw_hdrs_load [2019-10-13 20:22:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_fw_cmp [2019-10-13 20:22:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure mac_fw_hdrs_push [2019-10-13 20:22:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~X~int~TO~int [2019-10-13 20:22:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure mac_fw_upload_enable [2019-10-13 20:22:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure mac_fw_upload_disable [2019-10-13 20:22:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure __mac_fw_upload [2019-10-13 20:22:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_cmd_reset [2019-10-13 20:22:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_fw_is_running_q [2019-10-13 20:22:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 20:22:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 20:22:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_mpi_write [2019-10-13 20:22:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 20:22:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_mpi_read [2019-10-13 20:22:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 20:22:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion___0 [2019-10-13 20:22:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-10-13 20:22:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-10-13 20:22:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-10-13 20:22:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 20:22:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-10-13 20:22:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intf [2019-10-13 20:22:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2019-10-13 20:22:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-13 20:22:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2019-10-13 20:22:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2019-10-13 20:22:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2019-10-13 20:22:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-13 20:22:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-13 20:22:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-13 20:22:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-10-13 20:22:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-13 20:22:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-13 20:22:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-13 20:22:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2019-10-13 20:22:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-13 20:22:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 20:22:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_init [2019-10-13 20:22:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_usb_init [2019-10-13 20:22:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_usb_create [2019-10-13 20:22:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_usb_destroy [2019-10-13 20:22:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_usb_write [2019-10-13 20:22:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_usb_read [2019-10-13 20:22:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_usb_neep_cb [2019-10-13 20:22:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_usb_wait_init_done [2019-10-13 20:22:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_usb_cmd [2019-10-13 20:22:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_usb_probe [2019-10-13 20:22:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_dfu_driver_init [2019-10-13 20:22:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_dfu_driver_exit [2019-10-13 20:22:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-13 20:22:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 20:22:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:22:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:22:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 20:22:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-13 20:22:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 20:22:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:22:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:22:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 20:22:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 20:22:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:22:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 20:22:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 20:22:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 20:22:43,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 20:22:45,007 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-10-13 20:22:48,859 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 20:22:48,905 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2019-10-13 20:22:48,905 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2019-10-13 20:22:48,964 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 20:22:48,994 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-10-13 20:22:48,994 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-10-13 20:22:49,643 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:22:49,643 INFO L284 CfgBuilder]: Removed 45 assume(true) statements. [2019-10-13 20:22:49,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:22:49 BoogieIcfgContainer [2019-10-13 20:22:49,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:22:49,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:22:49,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:22:49,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:22:49,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:22:41" (1/3) ... [2019-10-13 20:22:49,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30323fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:22:49, skipping insertion in model container [2019-10-13 20:22:49,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:43" (2/3) ... [2019-10-13 20:22:49,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30323fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:22:49, skipping insertion in model container [2019-10-13 20:22:49,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:22:49" (3/3) ... [2019-10-13 20:22:49,655 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-uwb-i1480-dfu-i1480-dfu-usb.ko.cil.out.i [2019-10-13 20:22:49,666 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:22:49,677 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 20:22:49,690 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 20:22:49,724 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:22:49,725 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:22:49,725 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:22:49,725 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:22:49,725 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:22:49,725 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:22:49,726 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:22:49,726 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:22:49,761 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states. [2019-10-13 20:22:49,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-13 20:22:49,768 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:49,770 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] [2019-10-13 20:22:49,772 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:49,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:49,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1111109876, now seen corresponding path program 1 times [2019-10-13 20:22:49,790 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:49,790 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083519201] [2019-10-13 20:22:49,791 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:49,791 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:49,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:50,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:22:50,661 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083519201] [2019-10-13 20:22:50,662 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:50,662 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:22:50,662 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36007762] [2019-10-13 20:22:50,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:22:50,671 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:50,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:22:50,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:50,690 INFO L87 Difference]: Start difference. First operand 755 states. Second operand 3 states. [2019-10-13 20:22:50,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:50,984 INFO L93 Difference]: Finished difference Result 2162 states and 3096 transitions. [2019-10-13 20:22:50,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:22:50,986 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-10-13 20:22:50,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:51,025 INFO L225 Difference]: With dead ends: 2162 [2019-10-13 20:22:51,026 INFO L226 Difference]: Without dead ends: 1409 [2019-10-13 20:22:51,039 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:51,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2019-10-13 20:22:51,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1406. [2019-10-13 20:22:51,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1406 states. [2019-10-13 20:22:51,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 1751 transitions. [2019-10-13 20:22:51,268 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 1751 transitions. Word has length 29 [2019-10-13 20:22:51,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:51,269 INFO L462 AbstractCegarLoop]: Abstraction has 1406 states and 1751 transitions. [2019-10-13 20:22:51,271 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:22:51,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 1751 transitions. [2019-10-13 20:22:51,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-13 20:22:51,273 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:51,273 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] [2019-10-13 20:22:51,273 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:51,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:51,283 INFO L82 PathProgramCache]: Analyzing trace with hash -85001063, now seen corresponding path program 1 times [2019-10-13 20:22:51,283 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:51,283 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129196888] [2019-10-13 20:22:51,283 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:51,284 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:51,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:51,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:22:51,537 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129196888] [2019-10-13 20:22:51,537 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:51,537 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:22:51,537 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780856234] [2019-10-13 20:22:51,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:22:51,541 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:51,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:22:51,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:51,541 INFO L87 Difference]: Start difference. First operand 1406 states and 1751 transitions. Second operand 3 states. [2019-10-13 20:22:51,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:51,594 INFO L93 Difference]: Finished difference Result 1408 states and 1752 transitions. [2019-10-13 20:22:51,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:22:51,594 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-10-13 20:22:51,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:51,605 INFO L225 Difference]: With dead ends: 1408 [2019-10-13 20:22:51,606 INFO L226 Difference]: Without dead ends: 1395 [2019-10-13 20:22:51,607 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 [2019-10-13 20:22:51,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2019-10-13 20:22:51,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1395. [2019-10-13 20:22:51,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1395 states. [2019-10-13 20:22:51,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 1736 transitions. [2019-10-13 20:22:51,721 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 1736 transitions. Word has length 30 [2019-10-13 20:22:51,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:51,722 INFO L462 AbstractCegarLoop]: Abstraction has 1395 states and 1736 transitions. [2019-10-13 20:22:51,722 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:22:51,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 1736 transitions. [2019-10-13 20:22:51,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-13 20:22:51,739 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:51,740 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:22:51,740 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:51,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:51,741 INFO L82 PathProgramCache]: Analyzing trace with hash 292181543, now seen corresponding path program 1 times [2019-10-13 20:22:51,741 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:51,741 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286403605] [2019-10-13 20:22:51,741 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:51,742 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:51,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:52,115 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-13 20:22:52,115 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286403605] [2019-10-13 20:22:52,116 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:52,116 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:22:52,116 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743889918] [2019-10-13 20:22:52,117 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:22:52,117 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:52,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:22:52,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:22:52,118 INFO L87 Difference]: Start difference. First operand 1395 states and 1736 transitions. Second operand 5 states. [2019-10-13 20:22:52,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:52,601 INFO L93 Difference]: Finished difference Result 2777 states and 3467 transitions. [2019-10-13 20:22:52,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 20:22:52,602 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 178 [2019-10-13 20:22:52,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:52,614 INFO L225 Difference]: With dead ends: 2777 [2019-10-13 20:22:52,615 INFO L226 Difference]: Without dead ends: 1407 [2019-10-13 20:22:52,621 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:22:52,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2019-10-13 20:22:52,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1403. [2019-10-13 20:22:52,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1403 states. [2019-10-13 20:22:52,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1745 transitions. [2019-10-13 20:22:52,677 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1745 transitions. Word has length 178 [2019-10-13 20:22:52,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:52,678 INFO L462 AbstractCegarLoop]: Abstraction has 1403 states and 1745 transitions. [2019-10-13 20:22:52,678 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:22:52,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1745 transitions. [2019-10-13 20:22:52,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-13 20:22:52,683 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:52,683 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:22:52,684 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:52,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:52,684 INFO L82 PathProgramCache]: Analyzing trace with hash -777677134, now seen corresponding path program 1 times [2019-10-13 20:22:52,684 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:52,685 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222580526] [2019-10-13 20:22:52,685 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:52,685 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:52,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY