/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --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 [2020-08-22 02:45:11,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 02:45:11,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 02:45:11,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 02:45:11,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 02:45:11,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 02:45:11,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 02:45:11,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 02:45:11,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 02:45:11,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 02:45:11,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 02:45:11,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 02:45:11,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 02:45:11,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 02:45:11,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 02:45:11,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 02:45:11,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 02:45:11,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 02:45:11,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 02:45:11,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 02:45:11,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 02:45:11,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 02:45:11,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 02:45:11,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 02:45:11,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 02:45:11,283 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 02:45:11,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 02:45:11,284 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 02:45:11,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 02:45:11,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 02:45:11,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 02:45:11,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 02:45:11,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 02:45:11,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 02:45:11,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 02:45:11,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 02:45:11,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 02:45:11,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 02:45:11,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 02:45:11,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 02:45:11,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 02:45:11,292 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 [2020-08-22 02:45:11,338 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 02:45:11,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 02:45:11,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 02:45:11,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 02:45:11,343 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 02:45:11,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 02:45:11,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 02:45:11,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 02:45:11,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 02:45:11,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 02:45:11,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 02:45:11,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 02:45:11,344 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 02:45:11,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 02:45:11,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 02:45:11,348 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 02:45:11,348 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 02:45:11,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 02:45:11,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 02:45:11,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 02:45:11,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 02:45:11,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 02:45:11,349 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 02:45:11,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 02:45:11,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 02:45:11,351 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 02:45:11,351 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 02:45:11,351 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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-08-22 02:45:11,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 02:45:11,683 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 02:45:11,687 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 02:45:11,688 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 02:45:11,689 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 02:45:11,690 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-22 02:45:11,764 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/943e7d06a/0343b34b4524484888abb18a210b6a8f/FLAGf5845ab0f [2020-08-22 02:45:12,497 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 02:45:12,499 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-22 02:45:12,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/943e7d06a/0343b34b4524484888abb18a210b6a8f/FLAGf5845ab0f [2020-08-22 02:45:12,620 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/943e7d06a/0343b34b4524484888abb18a210b6a8f [2020-08-22 02:45:12,630 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 02:45:12,632 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 02:45:12,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 02:45:12,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 02:45:12,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 02:45:12,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:45:12" (1/1) ... [2020-08-22 02:45:12,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c05fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:45:12, skipping insertion in model container [2020-08-22 02:45:12,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:45:12" (1/1) ... [2020-08-22 02:45:12,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 02:45:12,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 02:45:13,282 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-08-22 02:45:13,283 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] [2020-08-22 02:45:14,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 02:45:14,066 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 02:45:14,160 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-08-22 02:45:14,160 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] [2020-08-22 02:45:14,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 02:45:14,491 INFO L208 MainTranslator]: Completed translation [2020-08-22 02:45:14,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:45:14 WrapperNode [2020-08-22 02:45:14,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 02:45:14,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 02:45:14,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 02:45:14,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 02:45:14,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:45:14" (1/1) ... [2020-08-22 02:45:14,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:45:14" (1/1) ... [2020-08-22 02:45:14,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:45:14" (1/1) ... [2020-08-22 02:45:14,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:45:14" (1/1) ... [2020-08-22 02:45:14,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:45:14" (1/1) ... [2020-08-22 02:45:14,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:45:14" (1/1) ... [2020-08-22 02:45:14,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:45:14" (1/1) ... [2020-08-22 02:45:14,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 02:45:14,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 02:45:14,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 02:45:14,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 02:45:14,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:45:14" (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 [2020-08-22 02:45:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 02:45:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 02:45:14,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-08-22 02:45:14,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-08-22 02:45:14,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-22 02:45:14,849 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-22 02:45:14,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2020-08-22 02:45:14,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2020-08-22 02:45:14,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2020-08-22 02:45:14,850 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2020-08-22 02:45:14,850 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-22 02:45:14,851 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-22 02:45:14,851 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-22 02:45:14,853 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-22 02:45:14,853 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-22 02:45:14,853 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-08-22 02:45:14,854 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-08-22 02:45:14,854 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 02:45:14,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-22 02:45:14,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-22 02:45:14,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-22 02:45:14,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-22 02:45:14,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-22 02:45:14,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-22 02:45:14,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-22 02:45:14,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-22 02:45:14,856 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-22 02:45:14,856 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-22 02:45:14,856 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-08-22 02:45:14,856 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-08-22 02:45:14,857 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-08-22 02:45:14,857 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-08-22 02:45:14,857 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-08-22 02:45:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-08-22 02:45:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2020-08-22 02:45:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2020-08-22 02:45:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2020-08-22 02:45:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2020-08-22 02:45:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2020-08-22 02:45:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_calibrate [2020-08-22 02:45:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2020-08-22 02:45:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_handler [2020-08-22 02:45:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_interval [2020-08-22 02:45:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2020-08-22 02:45:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2020-08-22 02:45:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2020-08-22 02:45:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2020-08-22 02:45:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_open [2020-08-22 02:45:14,860 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_close [2020-08-22 02:45:14,860 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_calibrate_timer [2020-08-22 02:45:14,860 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_name [2020-08-22 02:45:14,860 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_device [2020-08-22 02:45:14,860 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_masks [2020-08-22 02:45:14,861 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_port [2020-08-22 02:45:14,861 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_connect [2020-08-22 02:45:14,862 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2020-08-22 02:45:14,862 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_parse_options [2020-08-22 02:45:14,862 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init [2020-08-22 02:45:14,862 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_exit [2020-08-22 02:45:14,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gameport_driver_1 [2020-08-22 02:45:14,862 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 02:45:14,862 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-22 02:45:14,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-08-22 02:45:14,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-22 02:45:14,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-08-22 02:45:14,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-08-22 02:45:14,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-08-22 02:45:14,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-08-22 02:45:14,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-08-22 02:45:14,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_driver [2020-08-22 02:45:14,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-08-22 02:45:14,866 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2020-08-22 02:45:14,866 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2020-08-22 02:45:14,867 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_start_polling [2020-08-22 02:45:14,867 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_stop_polling [2020-08-22 02:45:14,867 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_driver [2020-08-22 02:45:14,867 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-08-22 02:45:14,867 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-08-22 02:45:14,868 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-08-22 02:45:14,869 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-08-22 02:45:14,869 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-08-22 02:45:14,869 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-08-22 02:45:14,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_bind_1 [2020-08-22 02:45:14,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-22 02:45:14,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-22 02:45:14,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-08-22 02:45:14,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-08-22 02:45:14,870 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-08-22 02:45:14,870 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-22 02:45:14,870 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-08-22 02:45:14,870 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-08-22 02:45:14,870 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-22 02:45:14,870 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-22 02:45:14,870 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-22 02:45:14,871 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-22 02:45:14,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 02:45:14,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-22 02:45:14,871 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-22 02:45:14,871 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2020-08-22 02:45:14,871 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2020-08-22 02:45:14,871 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2020-08-22 02:45:14,872 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-22 02:45:14,872 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-08-22 02:45:14,872 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-22 02:45:14,872 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-08-22 02:45:14,872 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-08-22 02:45:14,872 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-08-22 02:45:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2020-08-22 02:45:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 02:45:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-22 02:45:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-22 02:45:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-22 02:45:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-22 02:45:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-22 02:45:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-22 02:45:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-22 02:45:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-08-22 02:45:14,876 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-08-22 02:45:14,876 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-22 02:45:14,876 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-08-22 02:45:14,876 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-22 02:45:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-08-22 02:45:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 02:45:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 02:45:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 02:45:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-22 02:45:14,879 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 02:45:14,880 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 02:45:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-22 02:45:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 02:45:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-22 02:45:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-22 02:45:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-22 02:45:14,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-22 02:45:14,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-22 02:45:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-22 02:45:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-22 02:45:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gameport_driver_1 [2020-08-22 02:45:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-08-22 02:45:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-08-22 02:45:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-08-22 02:45:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-22 02:45:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-22 02:45:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 02:45:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-08-22 02:45:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-08-22 02:45:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-08-22 02:45:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-08-22 02:45:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-08-22 02:45:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-08-22 02:45:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-08-22 02:45:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-08-22 02:45:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-08-22 02:45:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-08-22 02:45:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-08-22 02:45:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2020-08-22 02:45:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2020-08-22 02:45:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2020-08-22 02:45:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2020-08-22 02:45:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_driver [2020-08-22 02:45:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_driver [2020-08-22 02:45:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2020-08-22 02:45:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-08-22 02:45:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 02:45:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2020-08-22 02:45:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-08-22 02:45:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2020-08-22 02:45:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-22 02:45:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_calibrate [2020-08-22 02:45:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2020-08-22 02:45:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_handler [2020-08-22 02:45:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_interval [2020-08-22 02:45:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 02:45:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_start_polling [2020-08-22 02:45:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_stop_polling [2020-08-22 02:45:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2020-08-22 02:45:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2020-08-22 02:45:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 02:45:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 02:45:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2020-08-22 02:45:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2020-08-22 02:45:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure analog_open [2020-08-22 02:45:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure analog_close [2020-08-22 02:45:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure analog_calibrate_timer [2020-08-22 02:45:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure analog_name [2020-08-22 02:45:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_device [2020-08-22 02:45:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_masks [2020-08-22 02:45:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_port [2020-08-22 02:45:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure analog_connect [2020-08-22 02:45:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2020-08-22 02:45:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure analog_parse_options [2020-08-22 02:45:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init [2020-08-22 02:45:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure analog_exit [2020-08-22 02:45:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-22 02:45:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-22 02:45:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-08-22 02:45:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_bind_1 [2020-08-22 02:45:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 02:45:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-08-22 02:45:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-22 02:45:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-08-22 02:45:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-08-22 02:45:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-08-22 02:45:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-08-22 02:45:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 02:45:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 02:45:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 02:45:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-22 02:45:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 02:45:15,652 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-22 02:45:17,211 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 02:45:17,211 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 02:45:17,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:45:17 BoogieIcfgContainer [2020-08-22 02:45:17,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 02:45:17,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 02:45:17,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 02:45:17,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 02:45:17,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 02:45:12" (1/3) ... [2020-08-22 02:45:17,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7e2621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 02:45:17, skipping insertion in model container [2020-08-22 02:45:17,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:45:14" (2/3) ... [2020-08-22 02:45:17,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7e2621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 02:45:17, skipping insertion in model container [2020-08-22 02:45:17,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:45:17" (3/3) ... [2020-08-22 02:45:17,234 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 [2020-08-22 02:45:17,246 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 02:45:17,257 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 02:45:17,271 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 02:45:17,307 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 02:45:17,307 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 02:45:17,307 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 02:45:17,307 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 02:45:17,308 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 02:45:17,308 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 02:45:17,308 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 02:45:17,308 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 02:45:17,357 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2020-08-22 02:45:17,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-22 02:45:17,368 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:45:17,369 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] [2020-08-22 02:45:17,370 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:45:17,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:45:17,376 INFO L82 PathProgramCache]: Analyzing trace with hash -2058672228, now seen corresponding path program 1 times [2020-08-22 02:45:17,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:45:17,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1905385879] [2020-08-22 02:45:17,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:45:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:18,383 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 02:45:18,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:45:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:18,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:45:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:18,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:45:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:18,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 02:45:18,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1905385879] [2020-08-22 02:45:18,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:45:18,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 02:45:18,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741456385] [2020-08-22 02:45:18,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 02:45:18,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:45:18,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 02:45:18,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 02:45:18,523 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 5 states. [2020-08-22 02:45:19,460 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-08-22 02:45:27,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:45:27,365 INFO L93 Difference]: Finished difference Result 1648 states and 2166 transitions. [2020-08-22 02:45:27,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 02:45:27,367 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-08-22 02:45:27,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:45:27,394 INFO L225 Difference]: With dead ends: 1648 [2020-08-22 02:45:27,394 INFO L226 Difference]: Without dead ends: 834 [2020-08-22 02:45:27,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 02:45:27,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-08-22 02:45:27,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 803. [2020-08-22 02:45:27,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-08-22 02:45:27,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1039 transitions. [2020-08-22 02:45:27,641 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1039 transitions. Word has length 30 [2020-08-22 02:45:27,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:45:27,641 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 1039 transitions. [2020-08-22 02:45:27,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 02:45:27,642 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1039 transitions. [2020-08-22 02:45:27,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-22 02:45:27,645 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:45:27,645 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] [2020-08-22 02:45:27,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 02:45:27,646 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:45:27,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:45:27,646 INFO L82 PathProgramCache]: Analyzing trace with hash 229024885, now seen corresponding path program 1 times [2020-08-22 02:45:27,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:45:27,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458719980] [2020-08-22 02:45:27,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:45:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:28,197 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 02:45:28,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:45:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:28,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:45:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:28,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:45:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:28,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 02:45:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:28,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:45:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:28,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 02:45:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:28,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 02:45:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:28,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:45:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:28,357 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 02:45:28,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458719980] [2020-08-22 02:45:28,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:45:28,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 02:45:28,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934307619] [2020-08-22 02:45:28,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 02:45:28,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:45:28,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 02:45:28,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-08-22 02:45:28,361 INFO L87 Difference]: Start difference. First operand 803 states and 1039 transitions. Second operand 7 states. [2020-08-22 02:45:34,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:45:34,651 INFO L93 Difference]: Finished difference Result 1640 states and 2144 transitions. [2020-08-22 02:45:34,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 02:45:34,655 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-22 02:45:34,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:45:34,666 INFO L225 Difference]: With dead ends: 1640 [2020-08-22 02:45:34,667 INFO L226 Difference]: Without dead ends: 864 [2020-08-22 02:45:34,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-22 02:45:34,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-08-22 02:45:34,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 807. [2020-08-22 02:45:34,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-08-22 02:45:34,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1045 transitions. [2020-08-22 02:45:34,818 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1045 transitions. Word has length 65 [2020-08-22 02:45:34,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:45:34,819 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 1045 transitions. [2020-08-22 02:45:34,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 02:45:34,819 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1045 transitions. [2020-08-22 02:45:34,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-22 02:45:34,822 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:45:34,823 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] [2020-08-22 02:45:34,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 02:45:34,823 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:45:34,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:45:34,824 INFO L82 PathProgramCache]: Analyzing trace with hash 780245369, now seen corresponding path program 1 times [2020-08-22 02:45:34,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:45:34,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298652246] [2020-08-22 02:45:34,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:45:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:35,313 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 02:45:35,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:45:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:35,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:45:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:35,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:45:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:35,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 02:45:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:35,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:45:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:35,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 02:45:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:35,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 02:45:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:35,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:45:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:35,530 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 02:45:35,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298652246] [2020-08-22 02:45:35,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:45:35,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 02:45:35,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465180082] [2020-08-22 02:45:35,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 02:45:35,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:45:35,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 02:45:35,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-22 02:45:35,534 INFO L87 Difference]: Start difference. First operand 807 states and 1045 transitions. Second operand 8 states. [2020-08-22 02:45:42,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:45:42,816 INFO L93 Difference]: Finished difference Result 1674 states and 2194 transitions. [2020-08-22 02:45:42,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 02:45:42,817 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-08-22 02:45:42,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:45:42,823 INFO L225 Difference]: With dead ends: 1674 [2020-08-22 02:45:42,823 INFO L226 Difference]: Without dead ends: 894 [2020-08-22 02:45:42,827 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 [2020-08-22 02:45:42,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-08-22 02:45:42,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 837. [2020-08-22 02:45:42,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-08-22 02:45:42,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1089 transitions. [2020-08-22 02:45:42,949 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1089 transitions. Word has length 67 [2020-08-22 02:45:42,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:45:42,949 INFO L479 AbstractCegarLoop]: Abstraction has 837 states and 1089 transitions. [2020-08-22 02:45:42,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 02:45:42,950 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1089 transitions. [2020-08-22 02:45:42,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-22 02:45:42,952 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:45:42,952 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] [2020-08-22 02:45:42,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 02:45:42,953 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:45:42,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:45:42,953 INFO L82 PathProgramCache]: Analyzing trace with hash -2072814211, now seen corresponding path program 2 times [2020-08-22 02:45:42,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:45:42,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569694803] [2020-08-22 02:45:42,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:45:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:43,434 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 02:45:43,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:45:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:43,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:45:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:43,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:45:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:43,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 02:45:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:43,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:45:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:43,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 02:45:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:43,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 02:45:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:43,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:45:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:43,651 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 02:45:43,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569694803] [2020-08-22 02:45:43,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:45:43,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 02:45:43,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980854351] [2020-08-22 02:45:43,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 02:45:43,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:45:43,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 02:45:43,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-22 02:45:43,658 INFO L87 Difference]: Start difference. First operand 837 states and 1089 transitions. Second operand 9 states. [2020-08-22 02:45:52,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:45:52,932 INFO L93 Difference]: Finished difference Result 1734 states and 2282 transitions. [2020-08-22 02:45:52,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 02:45:52,934 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-08-22 02:45:52,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:45:52,940 INFO L225 Difference]: With dead ends: 1734 [2020-08-22 02:45:52,940 INFO L226 Difference]: Without dead ends: 924 [2020-08-22 02:45:52,943 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 [2020-08-22 02:45:52,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-08-22 02:45:53,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 867. [2020-08-22 02:45:53,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-08-22 02:45:53,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1133 transitions. [2020-08-22 02:45:53,061 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1133 transitions. Word has length 69 [2020-08-22 02:45:53,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:45:53,062 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1133 transitions. [2020-08-22 02:45:53,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 02:45:53,062 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1133 transitions. [2020-08-22 02:45:53,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-08-22 02:45:53,064 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:45:53,064 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] [2020-08-22 02:45:53,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 02:45:53,065 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:45:53,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:45:53,065 INFO L82 PathProgramCache]: Analyzing trace with hash 621031553, now seen corresponding path program 3 times [2020-08-22 02:45:53,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:45:53,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503185215] [2020-08-22 02:45:53,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:45:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:53,513 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 02:45:53,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:45:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:53,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:45:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:53,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:45:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:53,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 02:45:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:53,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:45:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:53,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 02:45:53,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:53,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 02:45:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:53,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:45:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:45:53,744 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 02:45:53,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503185215] [2020-08-22 02:45:53,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:45:53,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 02:45:53,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328759485] [2020-08-22 02:45:53,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 02:45:53,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:45:53,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 02:45:53,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-08-22 02:45:53,751 INFO L87 Difference]: Start difference. First operand 867 states and 1133 transitions. Second operand 10 states. [2020-08-22 02:45:59,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:45:59,934 INFO L93 Difference]: Finished difference Result 1794 states and 2370 transitions. [2020-08-22 02:45:59,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 02:45:59,936 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-08-22 02:45:59,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:45:59,942 INFO L225 Difference]: With dead ends: 1794 [2020-08-22 02:45:59,942 INFO L226 Difference]: Without dead ends: 954 [2020-08-22 02:45:59,945 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 [2020-08-22 02:45:59,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-08-22 02:46:00,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 897. [2020-08-22 02:46:00,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-08-22 02:46:00,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1177 transitions. [2020-08-22 02:46:00,057 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1177 transitions. Word has length 71 [2020-08-22 02:46:00,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:46:00,058 INFO L479 AbstractCegarLoop]: Abstraction has 897 states and 1177 transitions. [2020-08-22 02:46:00,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 02:46:00,058 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1177 transitions. [2020-08-22 02:46:00,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-22 02:46:00,059 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:46:00,060 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] [2020-08-22 02:46:00,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 02:46:00,060 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:46:00,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:46:00,060 INFO L82 PathProgramCache]: Analyzing trace with hash -458468731, now seen corresponding path program 4 times [2020-08-22 02:46:00,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:46:00,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300496020] [2020-08-22 02:46:00,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:46:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:46:00,565 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 02:46:00,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:46:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:46:00,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:46:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:46:00,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 02:46:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:46:00,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 02:46:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:46:00,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:46:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:46:00,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 02:46:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:46:00,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 02:46:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:46:00,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:46:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:46:00,788 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 02:46:00,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300496020] [2020-08-22 02:46:00,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:46:00,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-22 02:46:00,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379541349] [2020-08-22 02:46:00,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 02:46:00,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:46:00,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 02:46:00,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-22 02:46:00,791 INFO L87 Difference]: Start difference. First operand 897 states and 1177 transitions. Second operand 11 states. [2020-08-22 02:46:10,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:46:10,029 INFO L93 Difference]: Finished difference Result 1854 states and 2458 transitions. [2020-08-22 02:46:10,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 02:46:10,031 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 73 [2020-08-22 02:46:10,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:46:10,037 INFO L225 Difference]: With dead ends: 1854 [2020-08-22 02:46:10,038 INFO L226 Difference]: Without dead ends: 984 [2020-08-22 02:46:10,041 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 [2020-08-22 02:46:10,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2020-08-22 02:46:10,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 927. [2020-08-22 02:46:10,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2020-08-22 02:46:10,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1221 transitions. [2020-08-22 02:46:10,158 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1221 transitions. Word has length 73 [2020-08-22 02:46:10,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:46:10,158 INFO L479 AbstractCegarLoop]: Abstraction has 927 states and 1221 transitions. [2020-08-22 02:46:10,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 02:46:10,158 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1221 transitions. [2020-08-22 02:46:10,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-08-22 02:46:10,160 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:46:10,160 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] [2020-08-22 02:46:10,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 02:46:10,160 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:46:10,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:46:10,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1523843977, now seen corresponding path program 5 times [2020-08-22 02:46:10,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:46:10,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247803461] [2020-08-22 02:46:10,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:46:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat