/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -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 0.1.25-177f698 [2020-08-21 21:05:01,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 21:05:01,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 21:05:01,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 21:05:01,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 21:05:01,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 21:05:01,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 21:05:01,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 21:05:01,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 21:05:01,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 21:05:01,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 21:05:01,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 21:05:01,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 21:05:01,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 21:05:01,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 21:05:01,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 21:05:01,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 21:05:01,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 21:05:01,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 21:05:01,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 21:05:01,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 21:05:01,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 21:05:01,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 21:05:01,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 21:05:01,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 21:05:01,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 21:05:01,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 21:05:01,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 21:05:01,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 21:05:01,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 21:05:01,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 21:05:01,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 21:05:01,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 21:05:01,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 21:05:01,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 21:05:01,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 21:05:01,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 21:05:01,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 21:05:01,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 21:05:01,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 21:05:01,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 21:05:01,320 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 [2020-08-21 21:05:01,345 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 21:05:01,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 21:05:01,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 21:05:01,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 21:05:01,346 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 21:05:01,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 21:05:01,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 21:05:01,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 21:05:01,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 21:05:01,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 21:05:01,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 21:05:01,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 21:05:01,348 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 21:05:01,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 21:05:01,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 21:05:01,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 21:05:01,349 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 21:05:01,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 21:05:01,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 21:05:01,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 21:05:01,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 21:05:01,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 21:05:01,350 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 21:05:01,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 21:05:01,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 21:05:01,351 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 21:05:01,351 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-21 21:05:01,351 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=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-08-21 21:05:01,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 21:05:01,646 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 21:05:01,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 21:05:01,651 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 21:05:01,652 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 21:05:01,652 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-21 21:05:01,725 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cad3fd427/e7c86c346b6848b997af8e5d21e900ca/FLAG6b26f81fe [2020-08-21 21:05:02,448 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 21:05:02,448 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-21 21:05:02,476 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cad3fd427/e7c86c346b6848b997af8e5d21e900ca/FLAG6b26f81fe [2020-08-21 21:05:02,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cad3fd427/e7c86c346b6848b997af8e5d21e900ca [2020-08-21 21:05:02,557 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 21:05:02,558 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 21:05:02,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 21:05:02,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 21:05:02,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 21:05:02,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 09:05:02" (1/1) ... [2020-08-21 21:05:02,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@130f42b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:05:02, skipping insertion in model container [2020-08-21 21:05:02,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 09:05:02" (1/1) ... [2020-08-21 21:05:02,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 21:05:02,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 21:05:03,253 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-08-21 21:05:03,254 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] [2020-08-21 21:05:03,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 21:05:03,888 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 21:05:03,968 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-08-21 21:05:03,969 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] [2020-08-21 21:05:04,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 21:05:04,344 INFO L208 MainTranslator]: Completed translation [2020-08-21 21:05:04,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:05:04 WrapperNode [2020-08-21 21:05:04,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 21:05:04,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 21:05:04,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 21:05:04,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 21:05:04,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:05:04" (1/1) ... [2020-08-21 21:05:04,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:05:04" (1/1) ... [2020-08-21 21:05:04,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:05:04" (1/1) ... [2020-08-21 21:05:04,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:05:04" (1/1) ... [2020-08-21 21:05:04,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:05:04" (1/1) ... [2020-08-21 21:05:04,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:05:04" (1/1) ... [2020-08-21 21:05:04,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:05:04" (1/1) ... [2020-08-21 21:05:04,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 21:05:04,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 21:05:04,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 21:05:04,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 21:05:04,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:05:04" (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 [2020-08-21 21:05:04,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 21:05:04,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 21:05:04,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-08-21 21:05:04,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-08-21 21:05:04,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-21 21:05:04,779 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-21 21:05:04,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2020-08-21 21:05:04,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2020-08-21 21:05:04,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2020-08-21 21:05:04,781 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2020-08-21 21:05:04,782 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-21 21:05:04,782 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-21 21:05:04,782 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-21 21:05:04,785 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-21 21:05:04,785 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-21 21:05:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-08-21 21:05:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-08-21 21:05:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-21 21:05:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-21 21:05:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-21 21:05:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-21 21:05:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-21 21:05:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-21 21:05:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-21 21:05:04,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-21 21:05:04,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-21 21:05:04,788 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-21 21:05:04,788 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-21 21:05:04,788 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-08-21 21:05:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-08-21 21:05:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-08-21 21:05:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-08-21 21:05:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-08-21 21:05:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-08-21 21:05:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2020-08-21 21:05:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2020-08-21 21:05:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2020-08-21 21:05:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2020-08-21 21:05:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2020-08-21 21:05:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_calibrate [2020-08-21 21:05:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2020-08-21 21:05:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_handler [2020-08-21 21:05:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_interval [2020-08-21 21:05:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2020-08-21 21:05:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2020-08-21 21:05:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2020-08-21 21:05:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2020-08-21 21:05:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_open [2020-08-21 21:05:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_close [2020-08-21 21:05:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_calibrate_timer [2020-08-21 21:05:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_name [2020-08-21 21:05:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_device [2020-08-21 21:05:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_masks [2020-08-21 21:05:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_port [2020-08-21 21:05:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_connect [2020-08-21 21:05:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2020-08-21 21:05:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_parse_options [2020-08-21 21:05:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init [2020-08-21 21:05:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_exit [2020-08-21 21:05:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gameport_driver_1 [2020-08-21 21:05:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 21:05:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-21 21:05:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-08-21 21:05:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-21 21:05:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-08-21 21:05:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-08-21 21:05:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-08-21 21:05:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-08-21 21:05:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-08-21 21:05:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_driver [2020-08-21 21:05:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-08-21 21:05:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2020-08-21 21:05:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2020-08-21 21:05:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_start_polling [2020-08-21 21:05:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_stop_polling [2020-08-21 21:05:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_driver [2020-08-21 21:05:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-08-21 21:05:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-08-21 21:05:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-08-21 21:05:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-08-21 21:05:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-08-21 21:05:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-08-21 21:05:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_bind_1 [2020-08-21 21:05:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-21 21:05:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-21 21:05:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-08-21 21:05:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-08-21 21:05:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-08-21 21:05:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-21 21:05:04,800 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-08-21 21:05:04,800 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-08-21 21:05:04,800 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-21 21:05:04,800 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-21 21:05:04,800 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-21 21:05:04,800 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-21 21:05:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 21:05:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-21 21:05:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-21 21:05:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2020-08-21 21:05:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2020-08-21 21:05:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2020-08-21 21:05:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-21 21:05:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-08-21 21:05:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-21 21:05:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-08-21 21:05:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-08-21 21:05:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-08-21 21:05:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2020-08-21 21:05:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 21:05:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-21 21:05:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-21 21:05:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-21 21:05:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-21 21:05:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-21 21:05:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-21 21:05:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-21 21:05:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-08-21 21:05:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-08-21 21:05:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-21 21:05:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-08-21 21:05:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-21 21:05:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-08-21 21:05:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 21:05:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-21 21:05:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 21:05:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-21 21:05:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 21:05:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-21 21:05:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-21 21:05:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 21:05:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-21 21:05:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-21 21:05:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-21 21:05:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-21 21:05:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-21 21:05:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-21 21:05:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-21 21:05:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gameport_driver_1 [2020-08-21 21:05:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-08-21 21:05:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-08-21 21:05:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-08-21 21:05:04,819 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-21 21:05:04,819 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-21 21:05:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 21:05:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-08-21 21:05:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-08-21 21:05:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-08-21 21:05:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-08-21 21:05:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-08-21 21:05:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-08-21 21:05:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-08-21 21:05:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-08-21 21:05:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-08-21 21:05:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-08-21 21:05:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-08-21 21:05:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2020-08-21 21:05:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2020-08-21 21:05:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2020-08-21 21:05:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2020-08-21 21:05:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_driver [2020-08-21 21:05:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_driver [2020-08-21 21:05:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2020-08-21 21:05:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-08-21 21:05:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 21:05:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2020-08-21 21:05:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-08-21 21:05:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2020-08-21 21:05:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-21 21:05:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_calibrate [2020-08-21 21:05:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2020-08-21 21:05:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_handler [2020-08-21 21:05:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_interval [2020-08-21 21:05:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 21:05:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_start_polling [2020-08-21 21:05:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_stop_polling [2020-08-21 21:05:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2020-08-21 21:05:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2020-08-21 21:05:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 21:05:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 21:05:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2020-08-21 21:05:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2020-08-21 21:05:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure analog_open [2020-08-21 21:05:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure analog_close [2020-08-21 21:05:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure analog_calibrate_timer [2020-08-21 21:05:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure analog_name [2020-08-21 21:05:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_device [2020-08-21 21:05:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_masks [2020-08-21 21:05:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_port [2020-08-21 21:05:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure analog_connect [2020-08-21 21:05:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2020-08-21 21:05:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure analog_parse_options [2020-08-21 21:05:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init [2020-08-21 21:05:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure analog_exit [2020-08-21 21:05:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-21 21:05:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-21 21:05:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-08-21 21:05:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_bind_1 [2020-08-21 21:05:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 21:05:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-08-21 21:05:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-21 21:05:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-08-21 21:05:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-08-21 21:05:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-08-21 21:05:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-08-21 21:05:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 21:05:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 21:05:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 21:05:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-21 21:05:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 21:05:05,570 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-21 21:05:07,156 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 21:05:07,157 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 21:05:07,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 09:05:07 BoogieIcfgContainer [2020-08-21 21:05:07,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 21:05:07,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 21:05:07,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 21:05:07,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 21:05:07,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 09:05:02" (1/3) ... [2020-08-21 21:05:07,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1a23dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 09:05:07, skipping insertion in model container [2020-08-21 21:05:07,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:05:04" (2/3) ... [2020-08-21 21:05:07,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1a23dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 09:05:07, skipping insertion in model container [2020-08-21 21:05:07,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 09:05:07" (3/3) ... [2020-08-21 21:05:07,174 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 [2020-08-21 21:05:07,186 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 21:05:07,196 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 21:05:07,213 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 21:05:07,242 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 21:05:07,242 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 21:05:07,242 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 21:05:07,242 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 21:05:07,243 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 21:05:07,243 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 21:05:07,243 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 21:05:07,243 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 21:05:07,280 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2020-08-21 21:05:07,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-21 21:05:07,288 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:05:07,289 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] [2020-08-21 21:05:07,290 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:05:07,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:05:07,295 INFO L82 PathProgramCache]: Analyzing trace with hash -2058672228, now seen corresponding path program 1 times [2020-08-21 21:05:07,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:05:07,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [509343515] [2020-08-21 21:05:07,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:05:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:08,285 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 21:05:08,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:05:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:08,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:05:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:08,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:05:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:08,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 21:05:08,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [509343515] [2020-08-21 21:05:08,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:05:08,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 21:05:08,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269123422] [2020-08-21 21:05:08,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 21:05:08,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:05:08,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 21:05:08,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 21:05:08,412 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 5 states. [2020-08-21 21:05:09,233 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-08-21 21:05:16,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:05:16,808 INFO L93 Difference]: Finished difference Result 1648 states and 2166 transitions. [2020-08-21 21:05:16,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 21:05:16,810 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-08-21 21:05:16,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:05:16,837 INFO L225 Difference]: With dead ends: 1648 [2020-08-21 21:05:16,837 INFO L226 Difference]: Without dead ends: 834 [2020-08-21 21:05:16,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-21 21:05:16,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-08-21 21:05:17,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 803. [2020-08-21 21:05:17,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-08-21 21:05:17,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1039 transitions. [2020-08-21 21:05:17,074 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1039 transitions. Word has length 30 [2020-08-21 21:05:17,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:05:17,074 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 1039 transitions. [2020-08-21 21:05:17,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 21:05:17,075 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1039 transitions. [2020-08-21 21:05:17,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-21 21:05:17,078 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:05:17,078 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] [2020-08-21 21:05:17,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 21:05:17,079 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:05:17,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:05:17,080 INFO L82 PathProgramCache]: Analyzing trace with hash 229024885, now seen corresponding path program 1 times [2020-08-21 21:05:17,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:05:17,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724128488] [2020-08-21 21:05:17,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:05:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:17,667 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 21:05:17,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:05:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:17,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:05:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:17,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:05:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:17,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 21:05:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:17,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:05:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:17,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-21 21:05:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:17,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 21:05:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:17,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:05:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:17,851 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 21:05:17,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724128488] [2020-08-21 21:05:17,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:05:17,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 21:05:17,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673596643] [2020-08-21 21:05:17,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 21:05:17,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:05:17,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 21:05:17,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-08-21 21:05:17,855 INFO L87 Difference]: Start difference. First operand 803 states and 1039 transitions. Second operand 7 states. [2020-08-21 21:05:24,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:05:24,059 INFO L93 Difference]: Finished difference Result 1640 states and 2144 transitions. [2020-08-21 21:05:24,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 21:05:24,060 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-21 21:05:24,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:05:24,072 INFO L225 Difference]: With dead ends: 1640 [2020-08-21 21:05:24,072 INFO L226 Difference]: Without dead ends: 864 [2020-08-21 21:05:24,077 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 [2020-08-21 21:05:24,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-08-21 21:05:24,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 807. [2020-08-21 21:05:24,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-08-21 21:05:24,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1045 transitions. [2020-08-21 21:05:24,250 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1045 transitions. Word has length 65 [2020-08-21 21:05:24,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:05:24,250 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 1045 transitions. [2020-08-21 21:05:24,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 21:05:24,251 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1045 transitions. [2020-08-21 21:05:24,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-21 21:05:24,264 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:05:24,264 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] [2020-08-21 21:05:24,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 21:05:24,265 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:05:24,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:05:24,266 INFO L82 PathProgramCache]: Analyzing trace with hash 780245369, now seen corresponding path program 1 times [2020-08-21 21:05:24,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:05:24,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145562004] [2020-08-21 21:05:24,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:05:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:24,843 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 21:05:24,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:05:24,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:24,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:05:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:24,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:05:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:24,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 21:05:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:24,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:05:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:24,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:05:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:24,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-21 21:05:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:24,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:05:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:25,006 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 21:05:25,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145562004] [2020-08-21 21:05:25,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 21:05:25,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 21:05:25,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165405224] [2020-08-21 21:05:25,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 21:05:25,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:05:25,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 21:05:25,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-21 21:05:25,009 INFO L87 Difference]: Start difference. First operand 807 states and 1045 transitions. Second operand 8 states. [2020-08-21 21:05:31,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:05:31,744 INFO L93 Difference]: Finished difference Result 1674 states and 2194 transitions. [2020-08-21 21:05:31,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 21:05:31,746 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-08-21 21:05:31,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:05:31,752 INFO L225 Difference]: With dead ends: 1674 [2020-08-21 21:05:31,753 INFO L226 Difference]: Without dead ends: 894 [2020-08-21 21:05:31,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-08-21 21:05:31,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-08-21 21:05:31,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 837. [2020-08-21 21:05:31,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-08-21 21:05:31,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1089 transitions. [2020-08-21 21:05:31,895 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1089 transitions. Word has length 67 [2020-08-21 21:05:31,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:05:31,896 INFO L479 AbstractCegarLoop]: Abstraction has 837 states and 1089 transitions. [2020-08-21 21:05:31,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 21:05:31,896 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1089 transitions. [2020-08-21 21:05:31,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-21 21:05:31,899 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:05:31,899 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] [2020-08-21 21:05:31,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 21:05:31,899 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:05:31,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:05:31,900 INFO L82 PathProgramCache]: Analyzing trace with hash -2072814211, now seen corresponding path program 2 times [2020-08-21 21:05:31,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:05:31,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1994374443] [2020-08-21 21:05:31,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:05:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:32,518 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 21:05:32,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:05:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:32,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:05:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:32,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:05:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:32,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 21:05:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:32,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:05:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:32,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 21:05:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:32,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-21 21:05:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:32,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:05:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:32,795 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 21:05:32,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1994374443] [2020-08-21 21:05:32,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 21:05:32,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 21:05:32,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348248645] [2020-08-21 21:05:32,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 21:05:32,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:05:32,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 21:05:32,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-21 21:05:32,803 INFO L87 Difference]: Start difference. First operand 837 states and 1089 transitions. Second operand 9 states. [2020-08-21 21:05:41,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:05:41,452 INFO L93 Difference]: Finished difference Result 1734 states and 2282 transitions. [2020-08-21 21:05:41,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 21:05:41,454 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-08-21 21:05:41,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:05:41,461 INFO L225 Difference]: With dead ends: 1734 [2020-08-21 21:05:41,461 INFO L226 Difference]: Without dead ends: 924 [2020-08-21 21:05:41,465 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 [2020-08-21 21:05:41,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-08-21 21:05:41,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 867. [2020-08-21 21:05:41,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-08-21 21:05:41,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1133 transitions. [2020-08-21 21:05:41,572 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1133 transitions. Word has length 69 [2020-08-21 21:05:41,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:05:41,572 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1133 transitions. [2020-08-21 21:05:41,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 21:05:41,573 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1133 transitions. [2020-08-21 21:05:41,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-08-21 21:05:41,574 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:05:41,574 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] [2020-08-21 21:05:41,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 21:05:41,575 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:05:41,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:05:41,575 INFO L82 PathProgramCache]: Analyzing trace with hash 621031553, now seen corresponding path program 3 times [2020-08-21 21:05:41,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:05:41,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1897738910] [2020-08-21 21:05:41,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:05:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:42,002 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 21:05:42,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:05:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:42,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:05:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:42,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:05:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:42,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 21:05:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:42,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:05:42,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:42,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 21:05:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:42,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 21:05:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:42,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:05:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:42,235 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 21:05:42,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1897738910] [2020-08-21 21:05:42,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 21:05:42,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 21:05:42,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772400928] [2020-08-21 21:05:42,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 21:05:42,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:05:42,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 21:05:42,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-08-21 21:05:42,237 INFO L87 Difference]: Start difference. First operand 867 states and 1133 transitions. Second operand 10 states. [2020-08-21 21:05:49,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:05:49,105 INFO L93 Difference]: Finished difference Result 1794 states and 2370 transitions. [2020-08-21 21:05:49,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 21:05:49,108 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-08-21 21:05:49,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:05:49,117 INFO L225 Difference]: With dead ends: 1794 [2020-08-21 21:05:49,117 INFO L226 Difference]: Without dead ends: 954 [2020-08-21 21:05:49,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-21 21:05:49,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-08-21 21:05:49,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 897. [2020-08-21 21:05:49,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-08-21 21:05:49,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1177 transitions. [2020-08-21 21:05:49,316 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1177 transitions. Word has length 71 [2020-08-21 21:05:49,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:05:49,318 INFO L479 AbstractCegarLoop]: Abstraction has 897 states and 1177 transitions. [2020-08-21 21:05:49,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 21:05:49,319 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1177 transitions. [2020-08-21 21:05:49,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-21 21:05:49,321 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:05:49,321 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] [2020-08-21 21:05:49,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 21:05:49,322 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:05:49,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:05:49,322 INFO L82 PathProgramCache]: Analyzing trace with hash -458468731, now seen corresponding path program 4 times [2020-08-21 21:05:49,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:05:49,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977954334] [2020-08-21 21:05:49,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:05:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:49,779 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 21:05:49,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:05:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:49,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:05:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:49,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:05:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:49,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 21:05:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:49,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:05:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:49,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 21:05:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:49,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-21 21:05:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:49,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:05:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:05:50,009 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 21:05:50,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977954334] [2020-08-21 21:05:50,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 21:05:50,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 21:05:50,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143134654] [2020-08-21 21:05:50,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 21:05:50,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:05:50,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 21:05:50,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-21 21:05:50,012 INFO L87 Difference]: Start difference. First operand 897 states and 1177 transitions. Second operand 11 states. [2020-08-21 21:05:59,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:05:59,186 INFO L93 Difference]: Finished difference Result 1854 states and 2458 transitions. [2020-08-21 21:05:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 21:05:59,190 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 73 [2020-08-21 21:05:59,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:05:59,198 INFO L225 Difference]: With dead ends: 1854 [2020-08-21 21:05:59,199 INFO L226 Difference]: Without dead ends: 984 [2020-08-21 21:05:59,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 21:05:59,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2020-08-21 21:05:59,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 927. [2020-08-21 21:05:59,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2020-08-21 21:05:59,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1221 transitions. [2020-08-21 21:05:59,421 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1221 transitions. Word has length 73 [2020-08-21 21:05:59,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:05:59,424 INFO L479 AbstractCegarLoop]: Abstraction has 927 states and 1221 transitions. [2020-08-21 21:05:59,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 21:05:59,425 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1221 transitions. [2020-08-21 21:05:59,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-08-21 21:05:59,427 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:05:59,427 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 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] [2020-08-21 21:05:59,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 21:05:59,428 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:05:59,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:05:59,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1523843977, now seen corresponding path program 5 times [2020-08-21 21:05:59,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:05:59,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [900823452] [2020-08-21 21:05:59,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:05:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat