/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 -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 06:31:27,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 06:31:27,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 06:31:27,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 06:31:27,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 06:31:27,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 06:31:27,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 06:31:27,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 06:31:27,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 06:31:27,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 06:31:27,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 06:31:27,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 06:31:27,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 06:31:27,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 06:31:27,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 06:31:27,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 06:31:27,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 06:31:27,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 06:31:27,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 06:31:27,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 06:31:27,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 06:31:27,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 06:31:27,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 06:31:27,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 06:31:27,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 06:31:27,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 06:31:27,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 06:31:27,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 06:31:27,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 06:31:27,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 06:31:27,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 06:31:27,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 06:31:27,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 06:31:27,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 06:31:27,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 06:31:27,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 06:31:27,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 06:31:27,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 06:31:27,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 06:31:27,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 06:31:27,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 06:31:27,414 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 06:31:27,451 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 06:31:27,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 06:31:27,453 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 06:31:27,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 06:31:27,453 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 06:31:27,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 06:31:27,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 06:31:27,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 06:31:27,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 06:31:27,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 06:31:27,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 06:31:27,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 06:31:27,456 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 06:31:27,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 06:31:27,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 06:31:27,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 06:31:27,457 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 06:31:27,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 06:31:27,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 06:31:27,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 06:31:27,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 06:31:27,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 06:31:27,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 06:31:27,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 06:31:27,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 06:31:27,459 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 06:31:27,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-19 06:31:27,459 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=SMALLESTAMONGWIDE;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4; [2020-08-19 06:31:27,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 06:31:27,762 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 06:31:27,765 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 06:31:27,766 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 06:31:27,767 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 06:31:27,768 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-19 06:31:27,834 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5166c754/54dbd279b3aa4027b392be8b9895cac1/FLAG23e54d4ca [2020-08-19 06:31:28,628 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 06:31:28,629 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-19 06:31:28,657 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5166c754/54dbd279b3aa4027b392be8b9895cac1/FLAG23e54d4ca [2020-08-19 06:31:28,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d5166c754/54dbd279b3aa4027b392be8b9895cac1 [2020-08-19 06:31:28,718 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 06:31:28,720 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 06:31:28,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 06:31:28,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 06:31:28,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 06:31:28,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:31:28" (1/1) ... [2020-08-19 06:31:28,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b7bcd2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:31:28, skipping insertion in model container [2020-08-19 06:31:28,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:31:28" (1/1) ... [2020-08-19 06:31:28,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 06:31:28,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 06:31:29,396 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 06:31:29,400 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 06:31:30,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:31:30,024 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 06:31:30,086 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 06:31:30,087 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 06:31:30,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:31:30,304 INFO L208 MainTranslator]: Completed translation [2020-08-19 06:31:30,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:31:30 WrapperNode [2020-08-19 06:31:30,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 06:31:30,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 06:31:30,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 06:31:30,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 06:31:30,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:31:30" (1/1) ... [2020-08-19 06:31:30,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:31:30" (1/1) ... [2020-08-19 06:31:30,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:31:30" (1/1) ... [2020-08-19 06:31:30,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:31:30" (1/1) ... [2020-08-19 06:31:30,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:31:30" (1/1) ... [2020-08-19 06:31:30,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:31:30" (1/1) ... [2020-08-19 06:31:30,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:31:30" (1/1) ... [2020-08-19 06:31:30,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 06:31:30,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 06:31:30,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 06:31:30,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 06:31:30,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:31:30" (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 06:31:30,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 06:31:30,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 06:31:30,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-08-19 06:31:30,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-08-19 06:31:30,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-19 06:31:30,667 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-19 06:31:30,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2020-08-19 06:31:30,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2020-08-19 06:31:30,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2020-08-19 06:31:30,668 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2020-08-19 06:31:30,668 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-19 06:31:30,668 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-19 06:31:30,668 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-19 06:31:30,669 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-19 06:31:30,669 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-19 06:31:30,669 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-08-19 06:31:30,669 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-08-19 06:31:30,670 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-19 06:31:30,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-19 06:31:30,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-19 06:31:30,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-19 06:31:30,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-19 06:31:30,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-19 06:31:30,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-19 06:31:30,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-19 06:31:30,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-19 06:31:30,671 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-19 06:31:30,671 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-19 06:31:30,671 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-08-19 06:31:30,672 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-08-19 06:31:30,672 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-08-19 06:31:30,672 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-08-19 06:31:30,672 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-08-19 06:31:30,672 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-08-19 06:31:30,672 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2020-08-19 06:31:30,672 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2020-08-19 06:31:30,673 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2020-08-19 06:31:30,673 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2020-08-19 06:31:30,673 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2020-08-19 06:31:30,673 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_calibrate [2020-08-19 06:31:30,673 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2020-08-19 06:31:30,673 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_handler [2020-08-19 06:31:30,673 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_interval [2020-08-19 06:31:30,674 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2020-08-19 06:31:30,674 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2020-08-19 06:31:30,674 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2020-08-19 06:31:30,674 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2020-08-19 06:31:30,674 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_open [2020-08-19 06:31:30,674 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_close [2020-08-19 06:31:30,674 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_calibrate_timer [2020-08-19 06:31:30,675 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_name [2020-08-19 06:31:30,675 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_device [2020-08-19 06:31:30,675 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_masks [2020-08-19 06:31:30,675 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_port [2020-08-19 06:31:30,675 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_connect [2020-08-19 06:31:30,676 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2020-08-19 06:31:30,676 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_parse_options [2020-08-19 06:31:30,676 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init [2020-08-19 06:31:30,676 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_exit [2020-08-19 06:31:30,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gameport_driver_1 [2020-08-19 06:31:30,676 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 06:31:30,676 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-19 06:31:30,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-08-19 06:31:30,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-19 06:31:30,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-08-19 06:31:30,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-08-19 06:31:30,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-08-19 06:31:30,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-08-19 06:31:30,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-08-19 06:31:30,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_driver [2020-08-19 06:31:30,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-08-19 06:31:30,678 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2020-08-19 06:31:30,678 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2020-08-19 06:31:30,678 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_start_polling [2020-08-19 06:31:30,678 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_stop_polling [2020-08-19 06:31:30,679 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_driver [2020-08-19 06:31:30,679 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-08-19 06:31:30,679 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-08-19 06:31:30,679 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-08-19 06:31:30,679 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-08-19 06:31:30,679 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-08-19 06:31:30,679 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-08-19 06:31:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_bind_1 [2020-08-19 06:31:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-19 06:31:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-19 06:31:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-08-19 06:31:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-08-19 06:31:30,680 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-08-19 06:31:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-19 06:31:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-08-19 06:31:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-08-19 06:31:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-19 06:31:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-19 06:31:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-19 06:31:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-19 06:31:30,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 06:31:30,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-19 06:31:30,682 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-19 06:31:30,682 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2020-08-19 06:31:30,682 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2020-08-19 06:31:30,682 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2020-08-19 06:31:30,682 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-19 06:31:30,682 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-08-19 06:31:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-19 06:31:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-08-19 06:31:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-08-19 06:31:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-08-19 06:31:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2020-08-19 06:31:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 06:31:30,683 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-19 06:31:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-19 06:31:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-19 06:31:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-19 06:31:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-19 06:31:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-19 06:31:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-19 06:31:30,684 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-08-19 06:31:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-08-19 06:31:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-19 06:31:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-08-19 06:31:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-19 06:31:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-08-19 06:31:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 06:31:30,685 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-19 06:31:30,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 06:31:30,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-19 06:31:30,686 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 06:31:30,686 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-19 06:31:30,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-19 06:31:30,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 06:31:30,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-19 06:31:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-19 06:31:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-19 06:31:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-19 06:31:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-19 06:31:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-19 06:31:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-19 06:31:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gameport_driver_1 [2020-08-19 06:31:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-08-19 06:31:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-08-19 06:31:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-08-19 06:31:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-19 06:31:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-19 06:31:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 06:31:30,688 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-08-19 06:31:30,689 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-08-19 06:31:30,689 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-08-19 06:31:30,689 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-08-19 06:31:30,689 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-08-19 06:31:30,689 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-08-19 06:31:30,689 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-08-19 06:31:30,689 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-08-19 06:31:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-08-19 06:31:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-08-19 06:31:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-08-19 06:31:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2020-08-19 06:31:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2020-08-19 06:31:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2020-08-19 06:31:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2020-08-19 06:31:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_driver [2020-08-19 06:31:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_driver [2020-08-19 06:31:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2020-08-19 06:31:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-08-19 06:31:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 06:31:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2020-08-19 06:31:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-08-19 06:31:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2020-08-19 06:31:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-19 06:31:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_calibrate [2020-08-19 06:31:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2020-08-19 06:31:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_handler [2020-08-19 06:31:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_interval [2020-08-19 06:31:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 06:31:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_start_polling [2020-08-19 06:31:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_stop_polling [2020-08-19 06:31:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2020-08-19 06:31:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2020-08-19 06:31:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 06:31:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 06:31:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2020-08-19 06:31:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2020-08-19 06:31:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure analog_open [2020-08-19 06:31:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure analog_close [2020-08-19 06:31:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure analog_calibrate_timer [2020-08-19 06:31:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure analog_name [2020-08-19 06:31:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_device [2020-08-19 06:31:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_masks [2020-08-19 06:31:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_port [2020-08-19 06:31:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure analog_connect [2020-08-19 06:31:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2020-08-19 06:31:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure analog_parse_options [2020-08-19 06:31:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init [2020-08-19 06:31:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure analog_exit [2020-08-19 06:31:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-19 06:31:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-19 06:31:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-08-19 06:31:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_bind_1 [2020-08-19 06:31:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 06:31:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-08-19 06:31:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-19 06:31:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-08-19 06:31:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-08-19 06:31:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-08-19 06:31:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-08-19 06:31:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 06:31:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 06:31:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 06:31:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-19 06:31:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 06:31:31,547 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-19 06:31:33,390 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 06:31:33,390 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-19 06:31:33,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:31:33 BoogieIcfgContainer [2020-08-19 06:31:33,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 06:31:33,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 06:31:33,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 06:31:33,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 06:31:33,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 06:31:28" (1/3) ... [2020-08-19 06:31:33,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e5b3d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:31:33, skipping insertion in model container [2020-08-19 06:31:33,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:31:30" (2/3) ... [2020-08-19 06:31:33,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e5b3d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:31:33, skipping insertion in model container [2020-08-19 06:31:33,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:31:33" (3/3) ... [2020-08-19 06:31:33,408 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 06:31:33,418 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 06:31:33,427 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 06:31:33,441 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 06:31:33,471 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 06:31:33,471 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 06:31:33,471 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 06:31:33,472 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 06:31:33,472 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 06:31:33,472 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 06:31:33,472 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 06:31:33,472 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 06:31:33,510 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2020-08-19 06:31:33,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-19 06:31:33,519 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:31:33,520 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 06:31:33,521 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:31:33,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:31:33,528 INFO L82 PathProgramCache]: Analyzing trace with hash -2058672228, now seen corresponding path program 1 times [2020-08-19 06:31:33,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:31:33,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777905741] [2020-08-19 06:31:33,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:31:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:34,748 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-19 06:31:34,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:31:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:34,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:31:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:34,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:31:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:34,925 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 06:31:34,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777905741] [2020-08-19 06:31:34,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:31:34,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 06:31:34,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886944121] [2020-08-19 06:31:34,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 06:31:34,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:31:34,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 06:31:34,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 06:31:34,957 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 5 states. [2020-08-19 06:31:35,801 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-08-19 06:31:43,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:31:43,390 INFO L93 Difference]: Finished difference Result 1648 states and 2166 transitions. [2020-08-19 06:31:43,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 06:31:43,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-08-19 06:31:43,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:31:43,421 INFO L225 Difference]: With dead ends: 1648 [2020-08-19 06:31:43,421 INFO L226 Difference]: Without dead ends: 834 [2020-08-19 06:31:43,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-19 06:31:43,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-08-19 06:31:43,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 803. [2020-08-19 06:31:43,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-08-19 06:31:43,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1039 transitions. [2020-08-19 06:31:43,640 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1039 transitions. Word has length 30 [2020-08-19 06:31:43,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:31:43,641 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 1039 transitions. [2020-08-19 06:31:43,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 06:31:43,641 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1039 transitions. [2020-08-19 06:31:43,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-19 06:31:43,644 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:31:43,644 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 06:31:43,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 06:31:43,645 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:31:43,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:31:43,646 INFO L82 PathProgramCache]: Analyzing trace with hash 229024885, now seen corresponding path program 1 times [2020-08-19 06:31:43,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:31:43,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [295154730] [2020-08-19 06:31:43,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:31:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:44,149 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-19 06:31:44,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:31:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:44,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:31:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:44,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:31:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:44,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-19 06:31:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:44,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:31:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:44,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 06:31:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:44,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-19 06:31:44,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:44,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:31:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:44,398 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 06:31:44,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [295154730] [2020-08-19 06:31:44,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:31:44,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 06:31:44,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380146270] [2020-08-19 06:31:44,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 06:31:44,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:31:44,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 06:31:44,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-08-19 06:31:44,404 INFO L87 Difference]: Start difference. First operand 803 states and 1039 transitions. Second operand 7 states. [2020-08-19 06:31:50,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:31:50,505 INFO L93 Difference]: Finished difference Result 1640 states and 2144 transitions. [2020-08-19 06:31:50,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 06:31:50,507 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-19 06:31:50,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:31:50,524 INFO L225 Difference]: With dead ends: 1640 [2020-08-19 06:31:50,524 INFO L226 Difference]: Without dead ends: 864 [2020-08-19 06:31:50,529 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 06:31:50,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-08-19 06:31:50,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 807. [2020-08-19 06:31:50,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-08-19 06:31:50,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1045 transitions. [2020-08-19 06:31:50,692 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1045 transitions. Word has length 65 [2020-08-19 06:31:50,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:31:50,693 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 1045 transitions. [2020-08-19 06:31:50,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 06:31:50,693 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1045 transitions. [2020-08-19 06:31:50,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-19 06:31:50,705 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:31:50,706 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 06:31:50,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 06:31:50,706 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:31:50,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:31:50,707 INFO L82 PathProgramCache]: Analyzing trace with hash 780245369, now seen corresponding path program 1 times [2020-08-19 06:31:50,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:31:50,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [273274945] [2020-08-19 06:31:50,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:31:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:51,219 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-19 06:31:51,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:31:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:51,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:31:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:51,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:31:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:51,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-19 06:31:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:51,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:31:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:51,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:31:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:51,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-19 06:31:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:51,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:31:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:51,407 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 06:31:51,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [273274945] [2020-08-19 06:31:51,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:31:51,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-19 06:31:51,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438229747] [2020-08-19 06:31:51,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 06:31:51,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:31:51,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 06:31:51,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-19 06:31:51,411 INFO L87 Difference]: Start difference. First operand 807 states and 1045 transitions. Second operand 8 states. [2020-08-19 06:31:58,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:31:58,452 INFO L93 Difference]: Finished difference Result 1674 states and 2194 transitions. [2020-08-19 06:31:58,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 06:31:58,454 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-08-19 06:31:58,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:31:58,461 INFO L225 Difference]: With dead ends: 1674 [2020-08-19 06:31:58,461 INFO L226 Difference]: Without dead ends: 894 [2020-08-19 06:31:58,466 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 [2020-08-19 06:31:58,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-08-19 06:31:58,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 837. [2020-08-19 06:31:58,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-08-19 06:31:58,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1089 transitions. [2020-08-19 06:31:58,625 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1089 transitions. Word has length 67 [2020-08-19 06:31:58,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:31:58,625 INFO L479 AbstractCegarLoop]: Abstraction has 837 states and 1089 transitions. [2020-08-19 06:31:58,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 06:31:58,626 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1089 transitions. [2020-08-19 06:31:58,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-19 06:31:58,628 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:31:58,629 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 06:31:58,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 06:31:58,629 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:31:58,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:31:58,630 INFO L82 PathProgramCache]: Analyzing trace with hash -2072814211, now seen corresponding path program 2 times [2020-08-19 06:31:58,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:31:58,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857202563] [2020-08-19 06:31:58,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:31:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:59,108 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-19 06:31:59,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:31:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:59,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:31:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:59,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:31:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:59,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-19 06:31:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:59,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:31:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:59,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-19 06:31:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:59,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 06:31:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:59,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:31:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:31:59,324 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 06:31:59,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857202563] [2020-08-19 06:31:59,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:31:59,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-19 06:31:59,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849267174] [2020-08-19 06:31:59,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 06:31:59,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:31:59,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 06:31:59,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-19 06:31:59,331 INFO L87 Difference]: Start difference. First operand 837 states and 1089 transitions. Second operand 9 states. [2020-08-19 06:32:08,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:32:08,050 INFO L93 Difference]: Finished difference Result 1734 states and 2282 transitions. [2020-08-19 06:32:08,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 06:32:08,051 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-08-19 06:32:08,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:32:08,059 INFO L225 Difference]: With dead ends: 1734 [2020-08-19 06:32:08,059 INFO L226 Difference]: Without dead ends: 924 [2020-08-19 06:32:08,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-08-19 06:32:08,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-08-19 06:32:08,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 867. [2020-08-19 06:32:08,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-08-19 06:32:08,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1133 transitions. [2020-08-19 06:32:08,184 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1133 transitions. Word has length 69 [2020-08-19 06:32:08,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:32:08,185 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1133 transitions. [2020-08-19 06:32:08,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 06:32:08,185 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1133 transitions. [2020-08-19 06:32:08,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-08-19 06:32:08,189 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:32:08,189 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 06:32:08,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 06:32:08,190 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:32:08,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:32:08,190 INFO L82 PathProgramCache]: Analyzing trace with hash 621031553, now seen corresponding path program 3 times [2020-08-19 06:32:08,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:32:08,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198253771] [2020-08-19 06:32:08,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:32:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:08,727 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-19 06:32:08,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:32:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:08,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:32:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:08,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:32:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:08,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-19 06:32:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:08,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:32:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:08,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 06:32:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:08,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 06:32:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:08,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:32:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:08,930 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 06:32:08,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198253771] [2020-08-19 06:32:08,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:32:08,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-19 06:32:08,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91496584] [2020-08-19 06:32:08,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 06:32:08,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:32:08,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 06:32:08,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-08-19 06:32:08,934 INFO L87 Difference]: Start difference. First operand 867 states and 1133 transitions. Second operand 10 states. [2020-08-19 06:32:15,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:32:15,237 INFO L93 Difference]: Finished difference Result 1794 states and 2370 transitions. [2020-08-19 06:32:15,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 06:32:15,240 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-08-19 06:32:15,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:32:15,246 INFO L225 Difference]: With dead ends: 1794 [2020-08-19 06:32:15,247 INFO L226 Difference]: Without dead ends: 954 [2020-08-19 06:32:15,250 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 06:32:15,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-08-19 06:32:15,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 897. [2020-08-19 06:32:15,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-08-19 06:32:15,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1177 transitions. [2020-08-19 06:32:15,364 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1177 transitions. Word has length 71 [2020-08-19 06:32:15,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:32:15,365 INFO L479 AbstractCegarLoop]: Abstraction has 897 states and 1177 transitions. [2020-08-19 06:32:15,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 06:32:15,365 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1177 transitions. [2020-08-19 06:32:15,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-19 06:32:15,366 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:32:15,367 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 06:32:15,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 06:32:15,367 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:32:15,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:32:15,367 INFO L82 PathProgramCache]: Analyzing trace with hash -458468731, now seen corresponding path program 4 times [2020-08-19 06:32:15,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:32:15,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455026962] [2020-08-19 06:32:15,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:32:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:15,829 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-19 06:32:15,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:32:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:15,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:32:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:15,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:32:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:15,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-19 06:32:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:15,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:32:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:16,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:32:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:16,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 06:32:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:16,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:32:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:32:16,059 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 06:32:16,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455026962] [2020-08-19 06:32:16,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:32:16,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-19 06:32:16,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350214686] [2020-08-19 06:32:16,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 06:32:16,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:32:16,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 06:32:16,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-19 06:32:16,062 INFO L87 Difference]: Start difference. First operand 897 states and 1177 transitions. Second operand 11 states.