/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:37:06,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:37:06,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:37:06,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:37:06,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:37:06,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:37:06,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:37:06,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:37:06,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:37:06,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:37:06,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:37:06,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:37:06,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:37:06,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:37:06,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:37:06,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:37:06,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:37:06,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:37:06,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:37:06,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:37:06,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:37:06,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:37:06,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:37:06,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:37:06,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:37:06,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:37:06,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:37:06,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:37:06,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:37:06,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:37:06,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:37:06,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:37:06,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:37:06,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:37:06,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:37:06,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:37:06,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:37:06,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:37:06,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:37:06,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:37:06,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:37:06,319 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-24 15:37:06,346 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:37:06,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:37:06,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:37:06,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:37:06,350 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:37:06,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:37:06,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:37:06,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:37:06,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:37:06,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:37:06,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:37:06,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:37:06,351 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:37:06,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:37:06,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:37:06,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:37:06,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:37:06,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:37:06,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:37:06,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:37:06,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:37:06,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:37:06,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:37:06,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:37:06,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:37:06,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:37:06,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 15:37:06,357 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-09-24 15:37:06,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:37:06,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:37:06,882 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:37:06,884 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:37:06,884 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:37:06,885 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-09-24 15:37:06,973 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d9592759/45ef5c69aae44332ae51286858a9c9b4/FLAG6dcfa13f1 [2020-09-24 15:37:07,741 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:37:07,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-09-24 15:37:07,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d9592759/45ef5c69aae44332ae51286858a9c9b4/FLAG6dcfa13f1 [2020-09-24 15:37:07,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d9592759/45ef5c69aae44332ae51286858a9c9b4 [2020-09-24 15:37:07,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:37:07,873 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:37:07,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:37:07,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:37:07,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:37:07,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:37:07" (1/1) ... [2020-09-24 15:37:07,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e2018f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:37:07, skipping insertion in model container [2020-09-24 15:37:07,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:37:07" (1/1) ... [2020-09-24 15:37:07,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:37:08,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:37:08,569 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-09-24 15:37:08,570 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2540-2541] [2020-09-24 15:37:09,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:37:09,100 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:37:09,211 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-09-24 15:37:09,211 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2540-2541] [2020-09-24 15:37:09,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:37:09,502 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:37:09,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:37:09 WrapperNode [2020-09-24 15:37:09,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:37:09,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:37:09,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:37:09,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:37:09,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:37:09" (1/1) ... [2020-09-24 15:37:09,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:37:09" (1/1) ... [2020-09-24 15:37:09,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:37:09" (1/1) ... [2020-09-24 15:37:09,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:37:09" (1/1) ... [2020-09-24 15:37:09,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:37:09" (1/1) ... [2020-09-24 15:37:09,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:37:09" (1/1) ... [2020-09-24 15:37:09,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:37:09" (1/1) ... [2020-09-24 15:37:09,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:37:09,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:37:09,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:37:09,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:37:09,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:37:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-24 15:37:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:37:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:37:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-24 15:37:09,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-09-24 15:37:09,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-09-24 15:37:09,847 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-09-24 15:37:09,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2020-09-24 15:37:09,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2020-09-24 15:37:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2020-09-24 15:37:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2020-09-24 15:37:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-09-24 15:37:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-09-24 15:37:09,849 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-09-24 15:37:09,851 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-09-24 15:37:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-09-24 15:37:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-24 15:37:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-24 15:37:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 15:37:09,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 15:37:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 15:37:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 15:37:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 15:37:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 15:37:09,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 15:37:09,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 15:37:09,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 15:37:09,854 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-24 15:37:09,854 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 15:37:09,854 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-09-24 15:37:09,854 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-09-24 15:37:09,855 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-09-24 15:37:09,855 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-09-24 15:37:09,855 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-09-24 15:37:09,855 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-09-24 15:37:09,855 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2020-09-24 15:37:09,856 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2020-09-24 15:37:09,856 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2020-09-24 15:37:09,856 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2020-09-24 15:37:09,856 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2020-09-24 15:37:09,856 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_calibrate [2020-09-24 15:37:09,856 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2020-09-24 15:37:09,856 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_handler [2020-09-24 15:37:09,857 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_interval [2020-09-24 15:37:09,857 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2020-09-24 15:37:09,857 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2020-09-24 15:37:09,857 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2020-09-24 15:37:09,857 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2020-09-24 15:37:09,857 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_open [2020-09-24 15:37:09,857 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_close [2020-09-24 15:37:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_calibrate_timer [2020-09-24 15:37:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_name [2020-09-24 15:37:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_device [2020-09-24 15:37:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_masks [2020-09-24 15:37:09,858 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_port [2020-09-24 15:37:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_connect [2020-09-24 15:37:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2020-09-24 15:37:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_parse_options [2020-09-24 15:37:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init [2020-09-24 15:37:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_exit [2020-09-24 15:37:09,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gameport_driver_1 [2020-09-24 15:37:09,860 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:37:09,860 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-24 15:37:09,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-09-24 15:37:09,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-09-24 15:37:09,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-09-24 15:37:09,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-09-24 15:37:09,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-09-24 15:37:09,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-09-24 15:37:09,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-09-24 15:37:09,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_driver [2020-09-24 15:37:09,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-09-24 15:37:09,862 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2020-09-24 15:37:09,862 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2020-09-24 15:37:09,863 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_start_polling [2020-09-24 15:37:09,863 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_stop_polling [2020-09-24 15:37:09,863 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_driver [2020-09-24 15:37:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-09-24 15:37:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-09-24 15:37:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-09-24 15:37:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-09-24 15:37:09,864 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-09-24 15:37:09,865 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-09-24 15:37:09,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_bind_1 [2020-09-24 15:37:09,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 15:37:09,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 15:37:09,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-09-24 15:37:09,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-09-24 15:37:09,866 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-09-24 15:37:09,866 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-24 15:37:09,866 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-09-24 15:37:09,866 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-09-24 15:37:09,867 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-09-24 15:37:09,867 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-09-24 15:37:09,867 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 15:37:09,868 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 15:37:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:37:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 15:37:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-09-24 15:37:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2020-09-24 15:37:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2020-09-24 15:37:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2020-09-24 15:37:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-24 15:37:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-09-24 15:37:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-09-24 15:37:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-09-24 15:37:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-09-24 15:37:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-09-24 15:37:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2020-09-24 15:37:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:37:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-09-24 15:37:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-09-24 15:37:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-09-24 15:37:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-09-24 15:37:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-09-24 15:37:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-09-24 15:37:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-09-24 15:37:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-24 15:37:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-24 15:37:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 15:37:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-09-24 15:37:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-24 15:37:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-09-24 15:37:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:37:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 15:37:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:37:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 15:37:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 15:37:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 15:37:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 15:37:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:37:09,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 15:37:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 15:37:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 15:37:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 15:37:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 15:37:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 15:37:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 15:37:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gameport_driver_1 [2020-09-24 15:37:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-09-24 15:37:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-09-24 15:37:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-09-24 15:37:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-24 15:37:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 15:37:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:37:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-09-24 15:37:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-09-24 15:37:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-09-24 15:37:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-09-24 15:37:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-09-24 15:37:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-09-24 15:37:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-09-24 15:37:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-09-24 15:37:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-09-24 15:37:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-09-24 15:37:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-09-24 15:37:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2020-09-24 15:37:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2020-09-24 15:37:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2020-09-24 15:37:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2020-09-24 15:37:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_driver [2020-09-24 15:37:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_driver [2020-09-24 15:37:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2020-09-24 15:37:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-24 15:37:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:37:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2020-09-24 15:37:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-09-24 15:37:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2020-09-24 15:37:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-09-24 15:37:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_calibrate [2020-09-24 15:37:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2020-09-24 15:37:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_handler [2020-09-24 15:37:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_interval [2020-09-24 15:37:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:37:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_start_polling [2020-09-24 15:37:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_stop_polling [2020-09-24 15:37:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2020-09-24 15:37:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2020-09-24 15:37:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:37:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:37:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2020-09-24 15:37:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2020-09-24 15:37:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure analog_open [2020-09-24 15:37:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure analog_close [2020-09-24 15:37:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure analog_calibrate_timer [2020-09-24 15:37:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure analog_name [2020-09-24 15:37:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_device [2020-09-24 15:37:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_masks [2020-09-24 15:37:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_port [2020-09-24 15:37:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure analog_connect [2020-09-24 15:37:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2020-09-24 15:37:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure analog_parse_options [2020-09-24 15:37:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init [2020-09-24 15:37:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure analog_exit [2020-09-24 15:37:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 15:37:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 15:37:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-09-24 15:37:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_bind_1 [2020-09-24 15:37:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:37:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-09-24 15:37:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-09-24 15:37:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-09-24 15:37:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-09-24 15:37:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-09-24 15:37:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-09-24 15:37:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:37:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:37:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:37:09,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 15:37:09,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:37:10,736 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 15:37:12,844 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:37:12,844 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 15:37:12,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:37:12 BoogieIcfgContainer [2020-09-24 15:37:12,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:37:12,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:37:12,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:37:12,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:37:12,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:37:07" (1/3) ... [2020-09-24 15:37:12,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f652b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:37:12, skipping insertion in model container [2020-09-24 15:37:12,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:37:09" (2/3) ... [2020-09-24 15:37:12,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46f652b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:37:12, skipping insertion in model container [2020-09-24 15:37:12,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:37:12" (3/3) ... [2020-09-24 15:37:12,872 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-09-24 15:37:12,885 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:37:12,900 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:37:12,923 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:37:12,964 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:37:12,964 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:37:12,964 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:37:12,964 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:37:12,964 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:37:12,964 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:37:12,964 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:37:12,965 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:37:13,026 INFO L276 IsEmpty]: Start isEmpty. Operand 2037 states. [2020-09-24 15:37:13,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-09-24 15:37:13,062 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:37:13,066 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:37:13,066 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:37:13,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:37:13,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1254517513, now seen corresponding path program 1 times [2020-09-24 15:37:13,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:37:13,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848903814] [2020-09-24 15:37:13,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:37:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:14,390 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-24 15:37:14,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:37:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:14,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 15:37:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:14,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-24 15:37:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:14,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:37:14,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1848903814] [2020-09-24 15:37:14,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:37:14,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:37:14,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180386929] [2020-09-24 15:37:14,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:37:14,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:37:14,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:37:14,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:37:14,810 INFO L87 Difference]: Start difference. First operand 2037 states. Second operand 5 states. [2020-09-24 15:37:16,333 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-09-24 15:37:27,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:37:27,829 INFO L93 Difference]: Finished difference Result 3999 states and 4517 transitions. [2020-09-24 15:37:27,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:37:27,836 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 260 [2020-09-24 15:37:27,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:37:27,873 INFO L225 Difference]: With dead ends: 3999 [2020-09-24 15:37:27,874 INFO L226 Difference]: Without dead ends: 2155 [2020-09-24 15:37:27,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:37:27,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2020-09-24 15:37:28,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 2105. [2020-09-24 15:37:28,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2105 states. [2020-09-24 15:37:28,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2105 states to 2105 states and 2341 transitions. [2020-09-24 15:37:28,183 INFO L78 Accepts]: Start accepts. Automaton has 2105 states and 2341 transitions. Word has length 260 [2020-09-24 15:37:28,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:37:28,185 INFO L479 AbstractCegarLoop]: Abstraction has 2105 states and 2341 transitions. [2020-09-24 15:37:28,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:37:28,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2105 states and 2341 transitions. [2020-09-24 15:37:28,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-09-24 15:37:28,192 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:37:28,193 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:37:28,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:37:28,193 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:37:28,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:37:28,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1717932618, now seen corresponding path program 1 times [2020-09-24 15:37:28,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:37:28,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873778036] [2020-09-24 15:37:28,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:37:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:28,891 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-24 15:37:28,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:37:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:29,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 15:37:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:29,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-24 15:37:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:29,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-09-24 15:37:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:29,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:37:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:29,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 15:37:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:29,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2020-09-24 15:37:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:29,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:37:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:29,371 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 15:37:29,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1873778036] [2020-09-24 15:37:29,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:37:29,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:37:29,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920539065] [2020-09-24 15:37:29,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:37:29,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:37:29,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:37:29,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:37:29,378 INFO L87 Difference]: Start difference. First operand 2105 states and 2341 transitions. Second operand 7 states. [2020-09-24 15:37:41,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:37:41,824 INFO L93 Difference]: Finished difference Result 4106 states and 4610 transitions. [2020-09-24 15:37:41,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 15:37:41,825 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 333 [2020-09-24 15:37:41,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:37:41,841 INFO L225 Difference]: With dead ends: 4106 [2020-09-24 15:37:41,841 INFO L226 Difference]: Without dead ends: 2247 [2020-09-24 15:37:41,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:37:41,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2020-09-24 15:37:41,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 2109. [2020-09-24 15:37:41,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2109 states. [2020-09-24 15:37:42,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 2347 transitions. [2020-09-24 15:37:42,003 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 2347 transitions. Word has length 333 [2020-09-24 15:37:42,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:37:42,004 INFO L479 AbstractCegarLoop]: Abstraction has 2109 states and 2347 transitions. [2020-09-24 15:37:42,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:37:42,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 2347 transitions. [2020-09-24 15:37:42,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-09-24 15:37:42,010 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:37:42,011 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:37:42,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:37:42,011 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:37:42,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:37:42,012 INFO L82 PathProgramCache]: Analyzing trace with hash 324339580, now seen corresponding path program 1 times [2020-09-24 15:37:42,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:37:42,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798569814] [2020-09-24 15:37:42,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:37:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:42,674 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-24 15:37:42,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:37:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:42,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 15:37:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:42,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-24 15:37:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:43,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-09-24 15:37:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:43,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:37:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:43,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-24 15:37:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:43,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2020-09-24 15:37:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:43,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:37:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:43,397 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 15:37:43,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798569814] [2020-09-24 15:37:43,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:37:43,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 15:37:43,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624320413] [2020-09-24 15:37:43,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:37:43,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:37:43,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:37:43,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:37:43,408 INFO L87 Difference]: Start difference. First operand 2109 states and 2347 transitions. Second operand 8 states. [2020-09-24 15:37:53,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:37:53,480 INFO L93 Difference]: Finished difference Result 4204 states and 4724 transitions. [2020-09-24 15:37:53,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:37:53,481 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 336 [2020-09-24 15:37:53,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:37:53,494 INFO L225 Difference]: With dead ends: 4204 [2020-09-24 15:37:53,495 INFO L226 Difference]: Without dead ends: 2341 [2020-09-24 15:37:53,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:37:53,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2020-09-24 15:37:53,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 2203. [2020-09-24 15:37:53,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2203 states. [2020-09-24 15:37:53,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2203 states to 2203 states and 2455 transitions. [2020-09-24 15:37:53,653 INFO L78 Accepts]: Start accepts. Automaton has 2203 states and 2455 transitions. Word has length 336 [2020-09-24 15:37:53,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:37:53,656 INFO L479 AbstractCegarLoop]: Abstraction has 2203 states and 2455 transitions. [2020-09-24 15:37:53,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:37:53,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2203 states and 2455 transitions. [2020-09-24 15:37:53,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-09-24 15:37:53,662 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:37:53,663 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:37:53,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:37:53,663 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:37:53,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:37:53,664 INFO L82 PathProgramCache]: Analyzing trace with hash -851324938, now seen corresponding path program 2 times [2020-09-24 15:37:53,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:37:53,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001746523] [2020-09-24 15:37:53,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:37:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:54,445 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-09-24 15:37:54,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:37:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:54,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 15:37:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:54,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-24 15:37:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:54,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-09-24 15:37:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:54,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:37:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:54,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-24 15:37:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:54,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2020-09-24 15:37:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:54,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:37:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:37:54,791 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-24 15:37:54,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2001746523] [2020-09-24 15:37:54,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:37:54,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:37:54,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995008787] [2020-09-24 15:37:54,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:37:54,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:37:54,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:37:54,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:37:54,795 INFO L87 Difference]: Start difference. First operand 2203 states and 2455 transitions. Second operand 7 states. [2020-09-24 15:37:56,406 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 264