/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 -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 0.1.25-5644d1e-m [2020-08-19 01:40:26,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 01:40:26,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 01:40:26,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 01:40:26,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 01:40:26,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 01:40:26,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 01:40:26,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 01:40:26,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 01:40:26,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 01:40:26,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 01:40:26,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 01:40:26,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 01:40:26,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 01:40:26,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 01:40:26,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 01:40:26,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 01:40:26,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 01:40:26,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 01:40:26,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 01:40:26,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 01:40:26,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 01:40:26,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 01:40:26,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 01:40:26,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 01:40:26,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 01:40:26,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 01:40:26,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 01:40:26,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 01:40:26,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 01:40:26,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 01:40:26,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 01:40:26,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 01:40:26,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 01:40:26,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 01:40:26,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 01:40:26,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 01:40:26,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 01:40:26,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 01:40:26,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 01:40:26,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 01:40:26,911 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 [2020-08-19 01:40:26,952 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 01:40:26,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 01:40:26,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 01:40:26,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 01:40:26,956 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 01:40:26,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 01:40:26,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 01:40:26,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 01:40:26,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 01:40:26,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 01:40:26,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 01:40:26,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 01:40:26,958 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 01:40:26,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 01:40:26,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 01:40:26,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 01:40:26,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 01:40:26,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 01:40:26,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 01:40:26,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 01:40:26,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 01:40:26,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 01:40:26,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 01:40:26,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 01:40:26,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 01:40:26,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 01:40:26,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-19 01:40:26,962 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; [2020-08-19 01:40:27,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 01:40:27,315 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 01:40:27,319 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 01:40:27,320 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 01:40:27,321 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 01:40:27,321 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-19 01:40:27,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16446985b/58bf3fe105ef46a4a3de26acab527f94/FLAG29deacb12 [2020-08-19 01:40:28,227 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 01:40:28,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-19 01:40:28,256 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16446985b/58bf3fe105ef46a4a3de26acab527f94/FLAG29deacb12 [2020-08-19 01:40:28,734 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16446985b/58bf3fe105ef46a4a3de26acab527f94 [2020-08-19 01:40:28,743 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 01:40:28,745 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 01:40:28,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 01:40:28,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 01:40:28,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 01:40:28,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:40:28" (1/1) ... [2020-08-19 01:40:28,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58fe5983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:40:28, skipping insertion in model container [2020-08-19 01:40:28,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:40:28" (1/1) ... [2020-08-19 01:40:28,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 01:40:28,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 01:40:29,385 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-08-19 01:40:29,386 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] [2020-08-19 01:40:30,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:40:30,043 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 01:40:30,154 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-08-19 01:40:30,155 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] [2020-08-19 01:40:30,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:40:30,503 INFO L208 MainTranslator]: Completed translation [2020-08-19 01:40:30,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:40:30 WrapperNode [2020-08-19 01:40:30,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 01:40:30,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 01:40:30,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 01:40:30,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 01:40:30,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:40:30" (1/1) ... [2020-08-19 01:40:30,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:40:30" (1/1) ... [2020-08-19 01:40:30,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:40:30" (1/1) ... [2020-08-19 01:40:30,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:40:30" (1/1) ... [2020-08-19 01:40:30,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:40:30" (1/1) ... [2020-08-19 01:40:30,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:40:30" (1/1) ... [2020-08-19 01:40:30,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:40:30" (1/1) ... [2020-08-19 01:40:30,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 01:40:30,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 01:40:30,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 01:40:30,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 01:40:30,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:40:30" (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 [2020-08-19 01:40:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 01:40:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 01:40:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-08-19 01:40:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-08-19 01:40:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-19 01:40:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-19 01:40:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2020-08-19 01:40:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2020-08-19 01:40:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2020-08-19 01:40:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2020-08-19 01:40:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-19 01:40:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-19 01:40:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-19 01:40:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-19 01:40:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-19 01:40:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-08-19 01:40:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-08-19 01:40:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-19 01:40:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-19 01:40:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-19 01:40:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-19 01:40:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-19 01:40:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-19 01:40:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-19 01:40:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-19 01:40:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-19 01:40:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-19 01:40:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-19 01:40:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-08-19 01:40:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-08-19 01:40:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-08-19 01:40:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-08-19 01:40:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-08-19 01:40:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-08-19 01:40:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2020-08-19 01:40:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2020-08-19 01:40:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2020-08-19 01:40:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2020-08-19 01:40:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2020-08-19 01:40:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_calibrate [2020-08-19 01:40:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2020-08-19 01:40:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_handler [2020-08-19 01:40:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_interval [2020-08-19 01:40:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2020-08-19 01:40:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2020-08-19 01:40:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2020-08-19 01:40:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2020-08-19 01:40:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_open [2020-08-19 01:40:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_close [2020-08-19 01:40:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_calibrate_timer [2020-08-19 01:40:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_name [2020-08-19 01:40:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_device [2020-08-19 01:40:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_masks [2020-08-19 01:40:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_port [2020-08-19 01:40:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_connect [2020-08-19 01:40:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2020-08-19 01:40:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_parse_options [2020-08-19 01:40:30,905 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init [2020-08-19 01:40:30,905 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_exit [2020-08-19 01:40:30,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gameport_driver_1 [2020-08-19 01:40:30,905 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 01:40:30,905 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-19 01:40:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-08-19 01:40:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-19 01:40:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-08-19 01:40:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-08-19 01:40:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-08-19 01:40:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-08-19 01:40:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-08-19 01:40:30,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_driver [2020-08-19 01:40:30,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-08-19 01:40:30,907 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2020-08-19 01:40:30,907 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2020-08-19 01:40:30,907 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_start_polling [2020-08-19 01:40:30,907 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_stop_polling [2020-08-19 01:40:30,907 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_driver [2020-08-19 01:40:30,908 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-08-19 01:40:30,908 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-08-19 01:40:30,908 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-08-19 01:40:30,908 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-08-19 01:40:30,908 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-08-19 01:40:30,908 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-08-19 01:40:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_bind_1 [2020-08-19 01:40:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-19 01:40:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-19 01:40:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-08-19 01:40:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-08-19 01:40:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-08-19 01:40:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-19 01:40:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-08-19 01:40:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-08-19 01:40:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-19 01:40:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-19 01:40:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-19 01:40:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-19 01:40:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 01:40:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-19 01:40:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-19 01:40:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2020-08-19 01:40:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2020-08-19 01:40:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2020-08-19 01:40:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-19 01:40:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-08-19 01:40:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-19 01:40:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-08-19 01:40:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-08-19 01:40:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-08-19 01:40:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2020-08-19 01:40:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 01:40:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-19 01:40:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-19 01:40:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-19 01:40:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-19 01:40:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-19 01:40:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-19 01:40:30,914 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-19 01:40:30,914 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-08-19 01:40:30,914 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-08-19 01:40:30,914 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-19 01:40:30,914 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-08-19 01:40:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-19 01:40:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-08-19 01:40:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 01:40:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-19 01:40:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 01:40:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-19 01:40:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 01:40:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-19 01:40:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-19 01:40:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 01:40:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-19 01:40:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-19 01:40:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-19 01:40:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-19 01:40:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-19 01:40:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-19 01:40:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-19 01:40:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gameport_driver_1 [2020-08-19 01:40:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-08-19 01:40:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-08-19 01:40:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-08-19 01:40:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-19 01:40:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-19 01:40:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 01:40:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-08-19 01:40:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-08-19 01:40:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-08-19 01:40:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-08-19 01:40:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-08-19 01:40:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-08-19 01:40:30,920 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-08-19 01:40:30,920 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-08-19 01:40:30,920 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-08-19 01:40:30,920 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-08-19 01:40:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-08-19 01:40:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2020-08-19 01:40:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2020-08-19 01:40:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2020-08-19 01:40:30,921 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2020-08-19 01:40:30,922 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_driver [2020-08-19 01:40:30,922 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_driver [2020-08-19 01:40:30,922 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2020-08-19 01:40:30,922 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-08-19 01:40:30,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 01:40:30,923 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2020-08-19 01:40:30,923 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-08-19 01:40:30,923 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2020-08-19 01:40:30,923 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-19 01:40:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_calibrate [2020-08-19 01:40:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2020-08-19 01:40:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_handler [2020-08-19 01:40:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_interval [2020-08-19 01:40:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 01:40:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_start_polling [2020-08-19 01:40:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_stop_polling [2020-08-19 01:40:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2020-08-19 01:40:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2020-08-19 01:40:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 01:40:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 01:40:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2020-08-19 01:40:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2020-08-19 01:40:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure analog_open [2020-08-19 01:40:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure analog_close [2020-08-19 01:40:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure analog_calibrate_timer [2020-08-19 01:40:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure analog_name [2020-08-19 01:40:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_device [2020-08-19 01:40:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_masks [2020-08-19 01:40:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_port [2020-08-19 01:40:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure analog_connect [2020-08-19 01:40:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2020-08-19 01:40:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure analog_parse_options [2020-08-19 01:40:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init [2020-08-19 01:40:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure analog_exit [2020-08-19 01:40:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-19 01:40:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-19 01:40:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-08-19 01:40:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_bind_1 [2020-08-19 01:40:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 01:40:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-08-19 01:40:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-19 01:40:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-08-19 01:40:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-08-19 01:40:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-08-19 01:40:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-08-19 01:40:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 01:40:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 01:40:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 01:40:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-19 01:40:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 01:40:31,863 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-19 01:40:33,748 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 01:40:33,749 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-19 01:40:33,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:40:33 BoogieIcfgContainer [2020-08-19 01:40:33,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 01:40:33,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 01:40:33,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 01:40:33,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 01:40:33,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 01:40:28" (1/3) ... [2020-08-19 01:40:33,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24ef1c9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:40:33, skipping insertion in model container [2020-08-19 01:40:33,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:40:30" (2/3) ... [2020-08-19 01:40:33,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24ef1c9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:40:33, skipping insertion in model container [2020-08-19 01:40:33,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:40:33" (3/3) ... [2020-08-19 01:40:33,775 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 [2020-08-19 01:40:33,787 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 01:40:33,801 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 01:40:33,816 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 01:40:33,856 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 01:40:33,856 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 01:40:33,856 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 01:40:33,856 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 01:40:33,856 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 01:40:33,857 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 01:40:33,857 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 01:40:33,857 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 01:40:33,893 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2020-08-19 01:40:33,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-19 01:40:33,902 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:40:33,904 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] [2020-08-19 01:40:33,904 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:40:33,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:40:33,910 INFO L82 PathProgramCache]: Analyzing trace with hash -2058672228, now seen corresponding path program 1 times [2020-08-19 01:40:33,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:40:33,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857546735] [2020-08-19 01:40:33,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:40:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:35,050 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-19 01:40:35,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:40:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:35,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:40:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:35,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:40:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:35,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:40:35,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857546735] [2020-08-19 01:40:35,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:40:35,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 01:40:35,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575689284] [2020-08-19 01:40:35,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 01:40:35,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:40:35,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 01:40:35,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 01:40:35,213 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 5 states. [2020-08-19 01:40:36,132 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-08-19 01:40:44,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:40:44,389 INFO L93 Difference]: Finished difference Result 1648 states and 2166 transitions. [2020-08-19 01:40:44,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 01:40:44,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-08-19 01:40:44,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:40:44,417 INFO L225 Difference]: With dead ends: 1648 [2020-08-19 01:40:44,417 INFO L226 Difference]: Without dead ends: 834 [2020-08-19 01:40:44,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-19 01:40:44,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-08-19 01:40:44,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 803. [2020-08-19 01:40:44,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-08-19 01:40:44,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1039 transitions. [2020-08-19 01:40:44,635 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1039 transitions. Word has length 30 [2020-08-19 01:40:44,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:40:44,635 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 1039 transitions. [2020-08-19 01:40:44,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 01:40:44,636 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1039 transitions. [2020-08-19 01:40:44,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-19 01:40:44,639 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:40:44,639 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-19 01:40:44,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 01:40:44,640 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:40:44,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:40:44,640 INFO L82 PathProgramCache]: Analyzing trace with hash 229024885, now seen corresponding path program 1 times [2020-08-19 01:40:44,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:40:44,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807532008] [2020-08-19 01:40:44,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:40:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:45,294 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-19 01:40:45,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:40:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:45,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:40:45,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:45,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:40:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:45,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-19 01:40:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:45,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:40:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:45,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 01:40:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:45,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 01:40:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:45,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:40:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:45,467 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-19 01:40:45,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [807532008] [2020-08-19 01:40:45,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:40:45,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 01:40:45,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168007243] [2020-08-19 01:40:45,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 01:40:45,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:40:45,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 01:40:45,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-08-19 01:40:45,471 INFO L87 Difference]: Start difference. First operand 803 states and 1039 transitions. Second operand 7 states. [2020-08-19 01:40:53,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:40:53,741 INFO L93 Difference]: Finished difference Result 1640 states and 2144 transitions. [2020-08-19 01:40:53,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 01:40:53,743 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-19 01:40:53,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:40:53,750 INFO L225 Difference]: With dead ends: 1640 [2020-08-19 01:40:53,751 INFO L226 Difference]: Without dead ends: 864 [2020-08-19 01:40:53,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-19 01:40:53,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-08-19 01:40:53,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 807. [2020-08-19 01:40:53,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-08-19 01:40:53,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1045 transitions. [2020-08-19 01:40:53,887 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1045 transitions. Word has length 65 [2020-08-19 01:40:53,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:40:53,888 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 1045 transitions. [2020-08-19 01:40:53,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 01:40:53,888 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1045 transitions. [2020-08-19 01:40:53,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-19 01:40:53,891 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:40:53,891 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-19 01:40:53,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 01:40:53,892 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:40:53,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:40:53,892 INFO L82 PathProgramCache]: Analyzing trace with hash 780245369, now seen corresponding path program 1 times [2020-08-19 01:40:53,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:40:53,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2026755499] [2020-08-19 01:40:53,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:40:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:54,465 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-19 01:40:54,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:40:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:54,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:40:54,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:54,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:40:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:54,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-19 01:40:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:54,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:40:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:54,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:40:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:54,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-19 01:40:54,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:54,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:40:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:40:54,633 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-19 01:40:54,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2026755499] [2020-08-19 01:40:54,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 01:40:54,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-19 01:40:54,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837028313] [2020-08-19 01:40:54,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 01:40:54,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:40:54,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 01:40:54,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-19 01:40:54,636 INFO L87 Difference]: Start difference. First operand 807 states and 1045 transitions. Second operand 8 states. [2020-08-19 01:41:02,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:41:02,496 INFO L93 Difference]: Finished difference Result 1674 states and 2194 transitions. [2020-08-19 01:41:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 01:41:02,497 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-08-19 01:41:02,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:41:02,504 INFO L225 Difference]: With dead ends: 1674 [2020-08-19 01:41:02,504 INFO L226 Difference]: Without dead ends: 894 [2020-08-19 01:41:02,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-08-19 01:41:02,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-08-19 01:41:02,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 837. [2020-08-19 01:41:02,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-08-19 01:41:02,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1089 transitions. [2020-08-19 01:41:02,679 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1089 transitions. Word has length 67 [2020-08-19 01:41:02,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:41:02,680 INFO L479 AbstractCegarLoop]: Abstraction has 837 states and 1089 transitions. [2020-08-19 01:41:02,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 01:41:02,680 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1089 transitions. [2020-08-19 01:41:02,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-19 01:41:02,683 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:41:02,683 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-19 01:41:02,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 01:41:02,683 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:41:02,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:41:02,684 INFO L82 PathProgramCache]: Analyzing trace with hash -2072814211, now seen corresponding path program 2 times [2020-08-19 01:41:02,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:41:02,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606621943] [2020-08-19 01:41:02,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:41:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:03,255 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-19 01:41:03,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:41:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:03,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:41:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:03,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:41:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:03,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-19 01:41:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:03,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:41:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:03,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 01:41:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:03,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 01:41:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:03,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:41:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:03,456 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-19 01:41:03,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606621943] [2020-08-19 01:41:03,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 01:41:03,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-19 01:41:03,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073646661] [2020-08-19 01:41:03,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 01:41:03,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:41:03,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 01:41:03,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-19 01:41:03,463 INFO L87 Difference]: Start difference. First operand 837 states and 1089 transitions. Second operand 9 states. [2020-08-19 01:41:11,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:41:11,539 INFO L93 Difference]: Finished difference Result 1734 states and 2282 transitions. [2020-08-19 01:41:11,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 01:41:11,540 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-08-19 01:41:11,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:41:11,549 INFO L225 Difference]: With dead ends: 1734 [2020-08-19 01:41:11,549 INFO L226 Difference]: Without dead ends: 924 [2020-08-19 01:41:11,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-08-19 01:41:11,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-08-19 01:41:11,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 867. [2020-08-19 01:41:11,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-08-19 01:41:11,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1133 transitions. [2020-08-19 01:41:11,681 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1133 transitions. Word has length 69 [2020-08-19 01:41:11,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:41:11,681 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1133 transitions. [2020-08-19 01:41:11,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 01:41:11,682 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1133 transitions. [2020-08-19 01:41:11,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-08-19 01:41:11,683 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:41:11,684 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-08-19 01:41:11,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 01:41:11,684 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:41:11,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:41:11,684 INFO L82 PathProgramCache]: Analyzing trace with hash 621031553, now seen corresponding path program 3 times [2020-08-19 01:41:11,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:41:11,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311869380] [2020-08-19 01:41:11,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:41:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:12,189 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-19 01:41:12,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:41:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:12,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:41:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:12,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:41:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:12,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-19 01:41:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:12,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:41:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:12,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 01:41:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:12,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 01:41:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:12,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:41:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:12,408 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-19 01:41:12,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311869380] [2020-08-19 01:41:12,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 01:41:12,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-19 01:41:12,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323208291] [2020-08-19 01:41:12,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 01:41:12,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:41:12,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 01:41:12,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-08-19 01:41:12,415 INFO L87 Difference]: Start difference. First operand 867 states and 1133 transitions. Second operand 10 states. [2020-08-19 01:41:19,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:41:19,692 INFO L93 Difference]: Finished difference Result 1794 states and 2370 transitions. [2020-08-19 01:41:19,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 01:41:19,694 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-08-19 01:41:19,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:41:19,701 INFO L225 Difference]: With dead ends: 1794 [2020-08-19 01:41:19,702 INFO L226 Difference]: Without dead ends: 954 [2020-08-19 01:41:19,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-19 01:41:19,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-08-19 01:41:19,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 897. [2020-08-19 01:41:19,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-08-19 01:41:19,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1177 transitions. [2020-08-19 01:41:19,816 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1177 transitions. Word has length 71 [2020-08-19 01:41:19,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:41:19,817 INFO L479 AbstractCegarLoop]: Abstraction has 897 states and 1177 transitions. [2020-08-19 01:41:19,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 01:41:19,817 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1177 transitions. [2020-08-19 01:41:19,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-19 01:41:19,818 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:41:19,819 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-08-19 01:41:19,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 01:41:19,819 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:41:19,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:41:19,819 INFO L82 PathProgramCache]: Analyzing trace with hash -458468731, now seen corresponding path program 4 times [2020-08-19 01:41:19,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:41:19,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1433965237] [2020-08-19 01:41:19,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:41:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:20,329 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-19 01:41:20,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:41:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:20,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:41:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:20,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:41:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:20,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-19 01:41:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:20,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:41:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:20,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 01:41:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:20,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 01:41:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:20,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:41:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:41:20,557 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-19 01:41:20,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1433965237] [2020-08-19 01:41:20,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 01:41:20,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-19 01:41:20,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938303153] [2020-08-19 01:41:20,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 01:41:20,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:41:20,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 01:41:20,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-19 01:41:20,560 INFO L87 Difference]: Start difference. First operand 897 states and 1177 transitions. Second operand 11 states.