java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 18:20:10,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 18:20:10,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 18:20:10,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 18:20:10,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 18:20:10,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 18:20:10,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 18:20:10,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 18:20:10,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 18:20:10,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 18:20:10,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 18:20:10,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 18:20:10,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 18:20:10,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 18:20:10,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 18:20:10,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 18:20:10,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 18:20:10,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 18:20:10,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 18:20:10,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 18:20:10,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 18:20:10,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 18:20:10,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 18:20:10,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 18:20:10,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 18:20:10,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 18:20:10,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 18:20:10,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 18:20:10,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 18:20:10,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 18:20:10,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 18:20:10,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 18:20:10,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 18:20:10,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 18:20:10,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 18:20:10,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 18:20:10,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 18:20:10,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 18:20:10,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 18:20:10,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 18:20:10,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 18:20:10,287 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 18:20:10,306 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 18:20:10,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 18:20:10,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 18:20:10,309 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 18:20:10,309 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 18:20:10,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 18:20:10,310 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 18:20:10,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 18:20:10,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 18:20:10,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 18:20:10,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 18:20:10,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 18:20:10,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 18:20:10,311 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 18:20:10,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 18:20:10,312 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 18:20:10,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 18:20:10,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 18:20:10,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 18:20:10,313 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 18:20:10,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 18:20:10,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:20:10,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 18:20:10,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 18:20:10,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 18:20:10,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 18:20:10,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 18:20:10,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 18:20:10,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 18:20:10,671 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 18:20:10,687 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 18:20:10,691 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 18:20:10,692 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 18:20:10,693 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 18:20:10,694 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2019-10-13 18:20:10,767 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ef304cf4/c34f07c383e046e09b5d2fcc94b85b1f/FLAG812fc4ef0 [2019-10-13 18:20:11,562 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 18:20:11,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2019-10-13 18:20:11,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ef304cf4/c34f07c383e046e09b5d2fcc94b85b1f/FLAG812fc4ef0 [2019-10-13 18:20:11,621 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ef304cf4/c34f07c383e046e09b5d2fcc94b85b1f [2019-10-13 18:20:11,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 18:20:11,633 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 18:20:11,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 18:20:11,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 18:20:11,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 18:20:11,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:20:11" (1/1) ... [2019-10-13 18:20:11,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f82b407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:11, skipping insertion in model container [2019-10-13 18:20:11,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:20:11" (1/1) ... [2019-10-13 18:20:11,649 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 18:20:11,734 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 18:20:12,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:20:12,784 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 18:20:12,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:20:13,007 INFO L192 MainTranslator]: Completed translation [2019-10-13 18:20:13,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:13 WrapperNode [2019-10-13 18:20:13,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 18:20:13,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 18:20:13,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 18:20:13,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 18:20:13,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:13" (1/1) ... [2019-10-13 18:20:13,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:13" (1/1) ... [2019-10-13 18:20:13,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:13" (1/1) ... [2019-10-13 18:20:13,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:13" (1/1) ... [2019-10-13 18:20:13,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:13" (1/1) ... [2019-10-13 18:20:13,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:13" (1/1) ... [2019-10-13 18:20:13,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:13" (1/1) ... [2019-10-13 18:20:13,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 18:20:13,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 18:20:13,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 18:20:13,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 18:20:13,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:20:13,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 18:20:13,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 18:20:13,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2019-10-13 18:20:13,294 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 18:20:13,294 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 18:20:13,295 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-10-13 18:20:13,296 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-10-13 18:20:13,296 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-13 18:20:13,296 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2019-10-13 18:20:13,296 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2019-10-13 18:20:13,296 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-10-13 18:20:13,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-13 18:20:13,297 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2019-10-13 18:20:13,298 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2019-10-13 18:20:13,298 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2019-10-13 18:20:13,299 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2019-10-13 18:20:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2019-10-13 18:20:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2019-10-13 18:20:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2019-10-13 18:20:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2019-10-13 18:20:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_irq [2019-10-13 18:20:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_open [2019-10-13 18:20:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_close [2019-10-13 18:20:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_probe [2019-10-13 18:20:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_disconnect [2019-10-13 18:20:13,302 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_init [2019-10-13 18:20:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_exit [2019-10-13 18:20:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2019-10-13 18:20:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2019-10-13 18:20:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 18:20:13,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2019-10-13 18:20:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2019-10-13 18:20:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-10-13 18:20:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-13 18:20:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-10-13 18:20:13,304 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-13 18:20:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 18:20:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 18:20:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 18:20:13,305 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 18:20:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2019-10-13 18:20:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2019-10-13 18:20:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2019-10-13 18:20:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2019-10-13 18:20:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2019-10-13 18:20:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-13 18:20:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 18:20:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2019-10-13 18:20:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 18:20:13,307 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2019-10-13 18:20:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-13 18:20:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-13 18:20:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-13 18:20:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-10-13 18:20:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 18:20:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 18:20:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 18:20:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2019-10-13 18:20:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 18:20:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 18:20:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-13 18:20:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2019-10-13 18:20:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 18:20:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 18:20:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 18:20:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 18:20:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2019-10-13 18:20:13,311 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2019-10-13 18:20:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 18:20:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 18:20:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-10-13 18:20:13,312 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-10-13 18:20:13,313 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-13 18:20:13,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 18:20:13,313 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2019-10-13 18:20:13,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 18:20:13,314 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-13 18:20:13,314 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2019-10-13 18:20:13,314 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-13 18:20:13,314 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-10-13 18:20:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 18:20:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 18:20:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-10-13 18:20:13,315 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-13 18:20:13,316 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-10-13 18:20:13,316 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-13 18:20:13,317 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-10-13 18:20:13,317 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-13 18:20:13,317 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-13 18:20:13,317 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2019-10-13 18:20:13,317 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2019-10-13 18:20:13,318 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2019-10-13 18:20:13,318 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2019-10-13 18:20:13,318 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2019-10-13 18:20:13,319 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2019-10-13 18:20:13,319 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2019-10-13 18:20:13,319 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2019-10-13 18:20:13,319 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2019-10-13 18:20:13,319 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2019-10-13 18:20:13,319 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2019-10-13 18:20:13,320 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2019-10-13 18:20:13,320 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2019-10-13 18:20:13,320 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_irq [2019-10-13 18:20:13,320 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_open [2019-10-13 18:20:13,320 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_close [2019-10-13 18:20:13,321 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_probe [2019-10-13 18:20:13,321 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_disconnect [2019-10-13 18:20:13,321 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_init [2019-10-13 18:20:13,321 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_exit [2019-10-13 18:20:13,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 18:20:13,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-13 18:20:13,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 18:20:13,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 18:20:13,322 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 18:20:13,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2019-10-13 18:20:13,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2019-10-13 18:20:13,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2019-10-13 18:20:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 18:20:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 18:20:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 18:20:13,324 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 18:20:13,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 18:20:13,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 18:20:13,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 18:20:13,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 18:20:13,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 18:20:13,991 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 18:20:14,095 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2019-10-13 18:20:14,096 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2019-10-13 18:20:14,413 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-13 18:20:14,484 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2019-10-13 18:20:14,485 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2019-10-13 18:20:14,692 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2019-10-13 18:20:15,088 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 18:20:15,089 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-13 18:20:15,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:20:15 BoogieIcfgContainer [2019-10-13 18:20:15,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 18:20:15,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 18:20:15,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 18:20:15,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 18:20:15,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:20:11" (1/3) ... [2019-10-13 18:20:15,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f91c726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:20:15, skipping insertion in model container [2019-10-13 18:20:15,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:20:13" (2/3) ... [2019-10-13 18:20:15,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f91c726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:20:15, skipping insertion in model container [2019-10-13 18:20:15,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:20:15" (3/3) ... [2019-10-13 18:20:15,099 INFO L109 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2019-10-13 18:20:15,109 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 18:20:15,118 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 18:20:15,129 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 18:20:15,157 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 18:20:15,157 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 18:20:15,157 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 18:20:15,157 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 18:20:15,157 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 18:20:15,158 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 18:20:15,158 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 18:20:15,158 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 18:20:15,182 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states. [2019-10-13 18:20:15,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-13 18:20:15,189 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:20:15,190 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:20:15,192 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:20:15,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:20:15,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1845057656, now seen corresponding path program 1 times [2019-10-13 18:20:15,207 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:20:15,208 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660572] [2019-10-13 18:20:15,208 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:15,208 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:15,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:20:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:15,979 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-10-13 18:20:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:16,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:20:16,191 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660572] [2019-10-13 18:20:16,192 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:20:16,192 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 18:20:16,192 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375792449] [2019-10-13 18:20:16,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 18:20:16,199 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:20:16,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 18:20:16,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 18:20:16,216 INFO L87 Difference]: Start difference. First operand 282 states. Second operand 4 states. [2019-10-13 18:20:16,662 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-13 18:20:20,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:20:20,432 INFO L93 Difference]: Finished difference Result 776 states and 1000 transitions. [2019-10-13 18:20:20,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 18:20:20,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-10-13 18:20:20,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:20:20,466 INFO L225 Difference]: With dead ends: 776 [2019-10-13 18:20:20,467 INFO L226 Difference]: Without dead ends: 537 [2019-10-13 18:20:20,473 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 18:20:20,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-10-13 18:20:20,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 475. [2019-10-13 18:20:20,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2019-10-13 18:20:20,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 558 transitions. [2019-10-13 18:20:20,688 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 558 transitions. Word has length 31 [2019-10-13 18:20:20,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:20:20,689 INFO L462 AbstractCegarLoop]: Abstraction has 475 states and 558 transitions. [2019-10-13 18:20:20,689 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 18:20:20,689 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 558 transitions. [2019-10-13 18:20:20,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-13 18:20:20,690 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:20:20,691 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:20:20,691 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:20:20,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:20:20,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1362410536, now seen corresponding path program 1 times [2019-10-13 18:20:20,692 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:20:20,692 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748212163] [2019-10-13 18:20:20,692 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:20,692 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:20,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:20:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:21,016 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-10-13 18:20:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:20:21,088 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748212163] [2019-10-13 18:20:21,088 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:20:21,089 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 18:20:21,089 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568728887] [2019-10-13 18:20:21,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 18:20:21,091 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:20:21,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 18:20:21,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 18:20:21,092 INFO L87 Difference]: Start difference. First operand 475 states and 558 transitions. Second operand 4 states. [2019-10-13 18:20:21,444 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-13 18:20:24,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:20:24,810 INFO L93 Difference]: Finished difference Result 1437 states and 1737 transitions. [2019-10-13 18:20:24,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 18:20:24,810 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-10-13 18:20:24,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:20:24,818 INFO L225 Difference]: With dead ends: 1437 [2019-10-13 18:20:24,818 INFO L226 Difference]: Without dead ends: 979 [2019-10-13 18:20:24,821 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 18:20:24,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2019-10-13 18:20:24,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 928. [2019-10-13 18:20:24,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 928 states. [2019-10-13 18:20:24,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1105 transitions. [2019-10-13 18:20:24,962 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1105 transitions. Word has length 32 [2019-10-13 18:20:24,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:20:24,963 INFO L462 AbstractCegarLoop]: Abstraction has 928 states and 1105 transitions. [2019-10-13 18:20:24,963 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 18:20:24,963 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1105 transitions. [2019-10-13 18:20:24,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-10-13 18:20:24,966 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:20:24,966 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:20:24,967 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:20:24,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:20:24,967 INFO L82 PathProgramCache]: Analyzing trace with hash 318886314, now seen corresponding path program 1 times [2019-10-13 18:20:24,967 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:20:24,967 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667428119] [2019-10-13 18:20:24,968 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:24,968 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:24,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:20:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:25,301 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-10-13 18:20:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:25,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:20:25,478 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667428119] [2019-10-13 18:20:25,478 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:20:25,478 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 18:20:25,479 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083884688] [2019-10-13 18:20:25,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 18:20:25,480 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:20:25,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 18:20:25,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 18:20:25,481 INFO L87 Difference]: Start difference. First operand 928 states and 1105 transitions. Second operand 7 states. [2019-10-13 18:20:26,073 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-10-13 18:20:26,342 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-10-13 18:20:29,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:20:29,199 INFO L93 Difference]: Finished difference Result 1878 states and 2257 transitions. [2019-10-13 18:20:29,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 18:20:29,200 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2019-10-13 18:20:29,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:20:29,207 INFO L225 Difference]: With dead ends: 1878 [2019-10-13 18:20:29,207 INFO L226 Difference]: Without dead ends: 972 [2019-10-13 18:20:29,211 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 18:20:29,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2019-10-13 18:20:29,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 928. [2019-10-13 18:20:29,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 928 states. [2019-10-13 18:20:29,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1104 transitions. [2019-10-13 18:20:29,381 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1104 transitions. Word has length 74 [2019-10-13 18:20:29,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:20:29,381 INFO L462 AbstractCegarLoop]: Abstraction has 928 states and 1104 transitions. [2019-10-13 18:20:29,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 18:20:29,382 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1104 transitions. [2019-10-13 18:20:29,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-10-13 18:20:29,394 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:20:29,394 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 18:20:29,394 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:20:29,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:20:29,395 INFO L82 PathProgramCache]: Analyzing trace with hash 762786988, now seen corresponding path program 1 times [2019-10-13 18:20:29,395 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:20:29,396 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984869790] [2019-10-13 18:20:29,396 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:29,396 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:29,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:20:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:29,806 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-10-13 18:20:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:29,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:20:29,892 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984869790] [2019-10-13 18:20:29,892 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:20:29,892 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 18:20:29,892 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015140599] [2019-10-13 18:20:29,893 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 18:20:29,893 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:20:29,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 18:20:29,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 18:20:29,894 INFO L87 Difference]: Start difference. First operand 928 states and 1104 transitions. Second operand 4 states. [2019-10-13 18:20:32,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:20:32,218 INFO L93 Difference]: Finished difference Result 1909 states and 2310 transitions. [2019-10-13 18:20:32,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 18:20:32,220 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 74 [2019-10-13 18:20:32,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:20:32,228 INFO L225 Difference]: With dead ends: 1909 [2019-10-13 18:20:32,229 INFO L226 Difference]: Without dead ends: 1007 [2019-10-13 18:20:32,234 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 18:20:32,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2019-10-13 18:20:32,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 963. [2019-10-13 18:20:32,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2019-10-13 18:20:32,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1150 transitions. [2019-10-13 18:20:32,433 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1150 transitions. Word has length 74 [2019-10-13 18:20:32,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:20:32,435 INFO L462 AbstractCegarLoop]: Abstraction has 963 states and 1150 transitions. [2019-10-13 18:20:32,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 18:20:32,435 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1150 transitions. [2019-10-13 18:20:32,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-13 18:20:32,442 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:20:32,443 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 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] [2019-10-13 18:20:32,443 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:20:32,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:20:32,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1064835193, now seen corresponding path program 1 times [2019-10-13 18:20:32,444 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:20:32,445 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181493919] [2019-10-13 18:20:32,445 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:32,445 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:32,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:20:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:32,871 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-10-13 18:20:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:32,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:33,098 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-13 18:20:33,099 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181493919] [2019-10-13 18:20:33,099 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:20:33,100 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 18:20:33,100 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088796049] [2019-10-13 18:20:33,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 18:20:33,103 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:20:33,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 18:20:33,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-13 18:20:33,107 INFO L87 Difference]: Start difference. First operand 963 states and 1150 transitions. Second operand 8 states. [2019-10-13 18:20:34,532 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-10-13 18:20:34,828 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-13 18:20:35,096 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-13 18:20:36,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:20:36,734 INFO L93 Difference]: Finished difference Result 1608 states and 1927 transitions. [2019-10-13 18:20:36,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 18:20:36,734 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 129 [2019-10-13 18:20:36,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:20:36,740 INFO L225 Difference]: With dead ends: 1608 [2019-10-13 18:20:36,741 INFO L226 Difference]: Without dead ends: 672 [2019-10-13 18:20:36,745 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-10-13 18:20:36,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2019-10-13 18:20:36,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 645. [2019-10-13 18:20:36,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2019-10-13 18:20:36,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 756 transitions. [2019-10-13 18:20:36,838 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 756 transitions. Word has length 129 [2019-10-13 18:20:36,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:20:36,843 INFO L462 AbstractCegarLoop]: Abstraction has 645 states and 756 transitions. [2019-10-13 18:20:36,843 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 18:20:36,844 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 756 transitions. [2019-10-13 18:20:36,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-13 18:20:36,845 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:20:36,846 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 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] [2019-10-13 18:20:36,846 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:20:36,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:20:36,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1415635130, now seen corresponding path program 1 times [2019-10-13 18:20:36,847 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:20:36,847 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41224692] [2019-10-13 18:20:36,847 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:36,847 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:36,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:20:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,255 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-10-13 18:20:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:37,469 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-13 18:20:37,470 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41224692] [2019-10-13 18:20:37,470 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:20:37,470 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 18:20:37,471 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941977163] [2019-10-13 18:20:37,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 18:20:37,471 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:20:37,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 18:20:37,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 18:20:37,472 INFO L87 Difference]: Start difference. First operand 645 states and 756 transitions. Second operand 9 states. [2019-10-13 18:20:37,880 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-13 18:20:39,087 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-13 18:20:40,784 WARN L191 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2019-10-13 18:20:43,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:20:43,376 INFO L93 Difference]: Finished difference Result 1193 states and 1430 transitions. [2019-10-13 18:20:43,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 18:20:43,377 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 129 [2019-10-13 18:20:43,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:20:43,385 INFO L225 Difference]: With dead ends: 1193 [2019-10-13 18:20:43,385 INFO L226 Difference]: Without dead ends: 1190 [2019-10-13 18:20:43,386 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2019-10-13 18:20:43,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2019-10-13 18:20:43,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 1125. [2019-10-13 18:20:43,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1125 states. [2019-10-13 18:20:43,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1349 transitions. [2019-10-13 18:20:43,563 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1349 transitions. Word has length 129 [2019-10-13 18:20:43,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:20:43,563 INFO L462 AbstractCegarLoop]: Abstraction has 1125 states and 1349 transitions. [2019-10-13 18:20:43,563 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 18:20:43,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1349 transitions. [2019-10-13 18:20:43,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-13 18:20:43,566 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:20:43,566 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 18:20:43,566 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:20:43,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:20:43,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1340956888, now seen corresponding path program 1 times [2019-10-13 18:20:43,567 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:20:43,567 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874387706] [2019-10-13 18:20:43,567 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:43,568 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:20:43,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:20:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:43,897 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-10-13 18:20:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:20:44,201 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 18:20:44,202 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874387706] [2019-10-13 18:20:44,202 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:20:44,202 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 18:20:44,202 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575838674] [2019-10-13 18:20:44,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 18:20:44,203 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:20:44,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 18:20:44,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-13 18:20:44,205 INFO L87 Difference]: Start difference. First operand 1125 states and 1349 transitions. Second operand 9 states. [2019-10-13 18:20:44,460 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 157