/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=WIDEST -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--gameport--ns558.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 23:14:26,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 23:14:26,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 23:14:26,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 23:14:26,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 23:14:26,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 23:14:26,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 23:14:26,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 23:14:26,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 23:14:26,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 23:14:26,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 23:14:26,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 23:14:26,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 23:14:26,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 23:14:26,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 23:14:26,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 23:14:26,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 23:14:26,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 23:14:26,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 23:14:26,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 23:14:26,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 23:14:26,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 23:14:26,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 23:14:26,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 23:14:26,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 23:14:26,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 23:14:26,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 23:14:26,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 23:14:26,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 23:14:26,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 23:14:26,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 23:14:26,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 23:14:26,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 23:14:26,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 23:14:26,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 23:14:26,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 23:14:26,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 23:14:26,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 23:14:26,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 23:14:26,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 23:14:26,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 23:14:26,822 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 [2020-08-18 23:14:26,862 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 23:14:26,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 23:14:26,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 23:14:26,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 23:14:26,865 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 23:14:26,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 23:14:26,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 23:14:26,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 23:14:26,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 23:14:26,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 23:14:26,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 23:14:26,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 23:14:26,868 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 23:14:26,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 23:14:26,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 23:14:26,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 23:14:26,870 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 23:14:26,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 23:14:26,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 23:14:26,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 23:14:26,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 23:14:26,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 23:14:26,871 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 23:14:26,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 23:14:26,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 23:14:26,872 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 23:14:26,872 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-18 23:14:26,872 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=WIDEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDEST; [2020-08-18 23:14:27,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 23:14:27,185 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 23:14:27,189 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 23:14:27,190 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 23:14:27,190 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 23:14:27,191 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2020-08-18 23:14:27,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7acf23a7f/4c411b3f9d0d4e19be37627e345afb8d/FLAGc57aab136 [2020-08-18 23:14:27,910 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 23:14:27,911 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2020-08-18 23:14:27,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7acf23a7f/4c411b3f9d0d4e19be37627e345afb8d/FLAGc57aab136 [2020-08-18 23:14:28,093 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7acf23a7f/4c411b3f9d0d4e19be37627e345afb8d [2020-08-18 23:14:28,101 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 23:14:28,103 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 23:14:28,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 23:14:28,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 23:14:28,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 23:14:28,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:14:28" (1/1) ... [2020-08-18 23:14:28,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c16fa0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:14:28, skipping insertion in model container [2020-08-18 23:14:28,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:14:28" (1/1) ... [2020-08-18 23:14:28,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 23:14:28,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 23:14:28,537 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1323] [2020-08-18 23:14:28,544 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1324-1325] [2020-08-18 23:14:29,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:14:29,202 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 23:14:29,279 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1323] [2020-08-18 23:14:29,280 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1324-1325] [2020-08-18 23:14:29,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:14:29,397 INFO L208 MainTranslator]: Completed translation [2020-08-18 23:14:29,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:14:29 WrapperNode [2020-08-18 23:14:29,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 23:14:29,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 23:14:29,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 23:14:29,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 23:14:29,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:14:29" (1/1) ... [2020-08-18 23:14:29,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:14:29" (1/1) ... [2020-08-18 23:14:29,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:14:29" (1/1) ... [2020-08-18 23:14:29,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:14:29" (1/1) ... [2020-08-18 23:14:29,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:14:29" (1/1) ... [2020-08-18 23:14:29,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:14:29" (1/1) ... [2020-08-18 23:14:29,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:14:29" (1/1) ... [2020-08-18 23:14:29,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 23:14:29,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 23:14:29,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 23:14:29,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 23:14:29,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:14:29" (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 [2020-08-18 23:14:29,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 23:14:29,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 23:14:29,657 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-08-18 23:14:29,657 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-08-18 23:14:29,657 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-08-18 23:14:29,658 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-08-18 23:14:29,658 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-08-18 23:14:29,658 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-08-18 23:14:29,659 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-08-18 23:14:29,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-18 23:14:29,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-18 23:14:29,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-18 23:14:29,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-18 23:14:29,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-18 23:14:29,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-18 23:14:29,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-18 23:14:29,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-18 23:14:29,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-18 23:14:29,664 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-08-18 23:14:29,664 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_allocate_port [2020-08-18 23:14:29,665 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_free_port [2020-08-18 23:14:29,665 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_name [2020-08-18 23:14:29,665 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2020-08-18 23:14:29,665 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_len [2020-08-18 23:14:29,665 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_start [2020-08-18 23:14:29,666 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_valid [2020-08-18 23:14:29,666 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_len [2020-08-18 23:14:29,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_isa_probe [2020-08-18 23:14:29,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_pnp_probe [2020-08-18 23:14:29,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_init [2020-08-18 23:14:29,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_exit [2020-08-18 23:14:29,667 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 23:14:29,667 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-18 23:14:29,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-08-18 23:14:29,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-18 23:14:29,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-08-18 23:14:29,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-08-18 23:14:29,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-08-18 23:14:29,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-08-18 23:14:29,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_port [2020-08-18 23:14:29,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-08-18 23:14:29,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-08-18 23:14:29,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-08-18 23:14:29,669 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_phys [2020-08-18 23:14:29,669 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_port [2020-08-18 23:14:29,669 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-08-18 23:14:29,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-18 23:14:29,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-18 23:14:29,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-08-18 23:14:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-08-18 23:14:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-08-18 23:14:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2020-08-18 23:14:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_register_driver [2020-08-18 23:14:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_unregister_driver [2020-08-18 23:14:29,671 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-18 23:14:29,671 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-08-18 23:14:29,671 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-18 23:14:29,671 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-18 23:14:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 23:14:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-18 23:14:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-18 23:14:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-08-18 23:14:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-08-18 23:14:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 23:14:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-08-18 23:14:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-08-18 23:14:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-08-18 23:14:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-08-18 23:14:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 23:14:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-08-18 23:14:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-08-18 23:14:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-08-18 23:14:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-08-18 23:14:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-08-18 23:14:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-18 23:14:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-08-18 23:14:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-18 23:14:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-08-18 23:14:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 23:14:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-18 23:14:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 23:14:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-18 23:14:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-18 23:14:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-18 23:14:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-18 23:14:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 23:14:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-18 23:14:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-18 23:14:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-18 23:14:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-18 23:14:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-18 23:14:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-18 23:14:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-18 23:14:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-08-18 23:14:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-08-18 23:14:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_port [2020-08-18 23:14:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_port [2020-08-18 23:14:29,681 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_phys [2020-08-18 23:14:29,681 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_allocate_port [2020-08-18 23:14:29,681 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_free_port [2020-08-18 23:14:29,681 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_name [2020-08-18 23:14:29,681 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2020-08-18 23:14:29,682 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2020-08-18 23:14:29,682 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_len [2020-08-18 23:14:29,682 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_start [2020-08-18 23:14:29,682 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_valid [2020-08-18 23:14:29,682 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_len [2020-08-18 23:14:29,683 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_register_driver [2020-08-18 23:14:29,683 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_unregister_driver [2020-08-18 23:14:29,683 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_isa_probe [2020-08-18 23:14:29,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 23:14:29,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 23:14:29,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 23:14:29,684 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_pnp_probe [2020-08-18 23:14:29,684 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_init [2020-08-18 23:14:29,684 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_exit [2020-08-18 23:14:29,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-18 23:14:29,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-18 23:14:29,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-08-18 23:14:29,686 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 23:14:29,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-08-18 23:14:29,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-18 23:14:29,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-08-18 23:14:29,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-08-18 23:14:29,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-08-18 23:14:29,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-08-18 23:14:29,688 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 23:14:29,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 23:14:29,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 23:14:29,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 23:14:29,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-18 23:14:29,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 23:14:30,430 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-18 23:14:31,092 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 23:14:31,092 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-18 23:14:31,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:14:31 BoogieIcfgContainer [2020-08-18 23:14:31,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 23:14:31,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 23:14:31,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 23:14:31,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 23:14:31,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 11:14:28" (1/3) ... [2020-08-18 23:14:31,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a054eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:14:31, skipping insertion in model container [2020-08-18 23:14:31,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:14:29" (2/3) ... [2020-08-18 23:14:31,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a054eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:14:31, skipping insertion in model container [2020-08-18 23:14:31,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:14:31" (3/3) ... [2020-08-18 23:14:31,107 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2020-08-18 23:14:31,118 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 23:14:31,126 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 23:14:31,141 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 23:14:31,167 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 23:14:31,168 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 23:14:31,168 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 23:14:31,168 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 23:14:31,168 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 23:14:31,168 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 23:14:31,168 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 23:14:31,169 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 23:14:31,195 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states. [2020-08-18 23:14:31,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-08-18 23:14:31,210 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:14:31,211 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:14:31,212 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:14:31,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:14:31,218 INFO L82 PathProgramCache]: Analyzing trace with hash -2083768503, now seen corresponding path program 1 times [2020-08-18 23:14:31,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:14:31,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377022083] [2020-08-18 23:14:31,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:14:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:32,089 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-18 23:14:32,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:14:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:32,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:14:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:32,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:32,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:14:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:32,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 23:14:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:32,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 23:14:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:32,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:32,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-18 23:14:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:32,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-18 23:14:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:32,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-18 23:14:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:32,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-18 23:14:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:32,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-08-18 23:14:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:32,361 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-08-18 23:14:32,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [377022083] [2020-08-18 23:14:32,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:14:32,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 23:14:32,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148298747] [2020-08-18 23:14:32,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 23:14:32,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:14:32,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 23:14:32,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-18 23:14:32,389 INFO L87 Difference]: Start difference. First operand 348 states. Second operand 10 states. [2020-08-18 23:14:32,582 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-08-18 23:14:33,652 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-08-18 23:14:34,664 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-08-18 23:14:34,830 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-08-18 23:14:35,005 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-08-18 23:14:35,192 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-08-18 23:14:37,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:14:37,199 INFO L93 Difference]: Finished difference Result 815 states and 1118 transitions. [2020-08-18 23:14:37,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 23:14:37,202 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 91 [2020-08-18 23:14:37,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:14:37,220 INFO L225 Difference]: With dead ends: 815 [2020-08-18 23:14:37,220 INFO L226 Difference]: Without dead ends: 429 [2020-08-18 23:14:37,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2020-08-18 23:14:37,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-08-18 23:14:37,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 306. [2020-08-18 23:14:37,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2020-08-18 23:14:37,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 386 transitions. [2020-08-18 23:14:37,336 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 386 transitions. Word has length 91 [2020-08-18 23:14:37,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:14:37,337 INFO L479 AbstractCegarLoop]: Abstraction has 306 states and 386 transitions. [2020-08-18 23:14:37,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 23:14:37,338 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 386 transitions. [2020-08-18 23:14:37,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-08-18 23:14:37,344 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:14:37,344 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:14:37,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 23:14:37,345 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:14:37,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:14:37,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1314856814, now seen corresponding path program 1 times [2020-08-18 23:14:37,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:14:37,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [961523087] [2020-08-18 23:14:37,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:14:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:37,605 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-18 23:14:37,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:14:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:37,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:14:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:37,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:37,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:14:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:37,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 23:14:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:37,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 23:14:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:37,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:37,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 23:14:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:37,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-08-18 23:14:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:37,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-18 23:14:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:37,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-18 23:14:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:37,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-18 23:14:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:37,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 23:14:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:37,729 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-08-18 23:14:37,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [961523087] [2020-08-18 23:14:37,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:14:37,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 23:14:37,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551669287] [2020-08-18 23:14:37,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 23:14:37,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:14:37,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 23:14:37,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 23:14:37,734 INFO L87 Difference]: Start difference. First operand 306 states and 386 transitions. Second operand 6 states. [2020-08-18 23:14:37,864 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-08-18 23:14:40,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:14:40,552 INFO L93 Difference]: Finished difference Result 722 states and 963 transitions. [2020-08-18 23:14:40,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 23:14:40,553 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 97 [2020-08-18 23:14:40,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:14:40,560 INFO L225 Difference]: With dead ends: 722 [2020-08-18 23:14:40,560 INFO L226 Difference]: Without dead ends: 441 [2020-08-18 23:14:40,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-08-18 23:14:40,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-08-18 23:14:40,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 308. [2020-08-18 23:14:40,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-08-18 23:14:40,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 388 transitions. [2020-08-18 23:14:40,663 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 388 transitions. Word has length 97 [2020-08-18 23:14:40,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:14:40,663 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 388 transitions. [2020-08-18 23:14:40,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 23:14:40,664 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 388 transitions. [2020-08-18 23:14:40,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-08-18 23:14:40,669 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:14:40,670 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:14:40,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 23:14:40,670 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:14:40,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:14:40,671 INFO L82 PathProgramCache]: Analyzing trace with hash -492581383, now seen corresponding path program 1 times [2020-08-18 23:14:40,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:14:40,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1155343082] [2020-08-18 23:14:40,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:14:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:40,862 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-18 23:14:40,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:14:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:40,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:14:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:40,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:40,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:14:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:40,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 23:14:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:40,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:40,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:40,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:40,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-18 23:14:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:40,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:40,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:40,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:40,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-08-18 23:14:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:41,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:41,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:41,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:41,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-18 23:14:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:41,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:41,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 23:14:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:41,086 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-08-18 23:14:41,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1155343082] [2020-08-18 23:14:41,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:14:41,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 23:14:41,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031138282] [2020-08-18 23:14:41,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 23:14:41,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:14:41,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 23:14:41,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 23:14:41,092 INFO L87 Difference]: Start difference. First operand 308 states and 388 transitions. Second operand 6 states. [2020-08-18 23:14:41,251 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-08-18 23:14:41,537 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-08-18 23:14:41,686 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-08-18 23:14:44,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:14:44,821 INFO L93 Difference]: Finished difference Result 945 states and 1246 transitions. [2020-08-18 23:14:44,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 23:14:44,822 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2020-08-18 23:14:44,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:14:44,829 INFO L225 Difference]: With dead ends: 945 [2020-08-18 23:14:44,829 INFO L226 Difference]: Without dead ends: 662 [2020-08-18 23:14:44,831 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-08-18 23:14:44,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2020-08-18 23:14:44,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 489. [2020-08-18 23:14:44,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-08-18 23:14:44,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 617 transitions. [2020-08-18 23:14:44,896 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 617 transitions. Word has length 123 [2020-08-18 23:14:44,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:14:44,897 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 617 transitions. [2020-08-18 23:14:44,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 23:14:44,897 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 617 transitions. [2020-08-18 23:14:44,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-08-18 23:14:44,902 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:14:44,902 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:14:44,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 23:14:44,903 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:14:44,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:14:44,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1067393612, now seen corresponding path program 1 times [2020-08-18 23:14:44,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:14:44,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [513733972] [2020-08-18 23:14:44,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:14:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:45,128 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-18 23:14:45,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:14:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:45,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:14:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:45,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:45,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:14:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:45,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 23:14:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:45,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 23:14:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:45,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:45,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 23:14:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:45,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-08-18 23:14:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:45,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-18 23:14:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:45,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-18 23:14:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:45,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-18 23:14:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:45,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-18 23:14:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:45,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-18 23:14:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:45,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-18 23:14:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:45,242 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-08-18 23:14:45,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [513733972] [2020-08-18 23:14:45,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:14:45,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 23:14:45,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691693159] [2020-08-18 23:14:45,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 23:14:45,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:14:45,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 23:14:45,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 23:14:45,245 INFO L87 Difference]: Start difference. First operand 489 states and 617 transitions. Second operand 7 states. [2020-08-18 23:14:45,401 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-08-18 23:14:48,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:14:48,239 INFO L93 Difference]: Finished difference Result 1237 states and 1674 transitions. [2020-08-18 23:14:48,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 23:14:48,240 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-08-18 23:14:48,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:14:48,248 INFO L225 Difference]: With dead ends: 1237 [2020-08-18 23:14:48,248 INFO L226 Difference]: Without dead ends: 773 [2020-08-18 23:14:48,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-18 23:14:48,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2020-08-18 23:14:48,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 541. [2020-08-18 23:14:48,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2020-08-18 23:14:48,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 699 transitions. [2020-08-18 23:14:48,331 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 699 transitions. Word has length 110 [2020-08-18 23:14:48,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:14:48,332 INFO L479 AbstractCegarLoop]: Abstraction has 541 states and 699 transitions. [2020-08-18 23:14:48,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 23:14:48,332 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 699 transitions. [2020-08-18 23:14:48,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-08-18 23:14:48,335 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:14:48,335 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:14:48,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 23:14:48,336 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:14:48,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:14:48,336 INFO L82 PathProgramCache]: Analyzing trace with hash 790920921, now seen corresponding path program 1 times [2020-08-18 23:14:48,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:14:48,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907534171] [2020-08-18 23:14:48,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:14:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,548 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-18 23:14:48,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:14:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:14:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:14:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 23:14:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-18 23:14:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-08-18 23:14:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:48,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-18 23:14:48,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 23:14:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:48,775 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-08-18 23:14:48,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907534171] [2020-08-18 23:14:48,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:14:48,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 23:14:48,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294805129] [2020-08-18 23:14:48,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 23:14:48,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:14:48,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 23:14:48,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 23:14:48,783 INFO L87 Difference]: Start difference. First operand 541 states and 699 transitions. Second operand 9 states. [2020-08-18 23:14:48,953 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-18 23:14:49,431 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-08-18 23:14:51,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:14:51,405 INFO L93 Difference]: Finished difference Result 1246 states and 1663 transitions. [2020-08-18 23:14:51,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 23:14:51,406 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 137 [2020-08-18 23:14:51,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:14:51,416 INFO L225 Difference]: With dead ends: 1246 [2020-08-18 23:14:51,416 INFO L226 Difference]: Without dead ends: 708 [2020-08-18 23:14:51,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-08-18 23:14:51,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-08-18 23:14:51,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 538. [2020-08-18 23:14:51,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-08-18 23:14:51,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 692 transitions. [2020-08-18 23:14:51,492 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 692 transitions. Word has length 137 [2020-08-18 23:14:51,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:14:51,492 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 692 transitions. [2020-08-18 23:14:51,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 23:14:51,493 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 692 transitions. [2020-08-18 23:14:51,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-08-18 23:14:51,497 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:14:51,497 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:14:51,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 23:14:51,498 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:14:51,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:14:51,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1536881969, now seen corresponding path program 1 times [2020-08-18 23:14:51,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:14:51,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2126157747] [2020-08-18 23:14:51,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:14:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,753 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-18 23:14:51,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:14:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:14:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:14:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 23:14:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 23:14:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-18 23:14:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 23:14:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-18 23:14:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:51,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-18 23:14:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:51,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 23:14:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:52,020 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-08-18 23:14:52,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2126157747] [2020-08-18 23:14:52,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:14:52,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 23:14:52,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646509130] [2020-08-18 23:14:52,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 23:14:52,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:14:52,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 23:14:52,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-18 23:14:52,023 INFO L87 Difference]: Start difference. First operand 538 states and 692 transitions. Second operand 10 states. [2020-08-18 23:14:52,157 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-18 23:14:52,841 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-18 23:14:53,009 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-18 23:14:55,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:14:55,473 INFO L93 Difference]: Finished difference Result 1233 states and 1636 transitions. [2020-08-18 23:14:55,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 23:14:55,473 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 152 [2020-08-18 23:14:55,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:14:55,479 INFO L225 Difference]: With dead ends: 1233 [2020-08-18 23:14:55,479 INFO L226 Difference]: Without dead ends: 702 [2020-08-18 23:14:55,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2020-08-18 23:14:55,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2020-08-18 23:14:55,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 538. [2020-08-18 23:14:55,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-08-18 23:14:55,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 690 transitions. [2020-08-18 23:14:55,536 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 690 transitions. Word has length 152 [2020-08-18 23:14:55,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:14:55,537 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 690 transitions. [2020-08-18 23:14:55,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 23:14:55,537 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 690 transitions. [2020-08-18 23:14:55,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-08-18 23:14:55,542 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:14:55,542 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:14:55,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 23:14:55,542 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:14:55,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:14:55,543 INFO L82 PathProgramCache]: Analyzing trace with hash -436283409, now seen corresponding path program 1 times [2020-08-18 23:14:55,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:14:55,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [787324148] [2020-08-18 23:14:55,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:14:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:55,853 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-18 23:14:55,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:14:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:55,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:14:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:55,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:55,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:14:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:55,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 23:14:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:55,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:55,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 23:14:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:55,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-18 23:14:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:55,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:56,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:56,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:56,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 23:14:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:56,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:56,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:56,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:56,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-18 23:14:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:56,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:56,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:56,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:14:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:56,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-18 23:14:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:56,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:14:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:56,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 23:14:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:14:56,211 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-08-18 23:14:56,212 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [787324148] [2020-08-18 23:14:56,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:14:56,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-18 23:14:56,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706800568] [2020-08-18 23:14:56,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-18 23:14:56,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:14:56,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-18 23:14:56,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-08-18 23:14:56,215 INFO L87 Difference]: Start difference. First operand 538 states and 690 transitions. Second operand 13 states. [2020-08-18 23:14:56,367 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-18 23:14:57,129 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-18 23:14:57,586 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-18 23:14:57,764 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-18 23:14:57,954 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-18 23:14:58,146 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-18 23:14:58,330 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-08-18 23:14:58,530 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-08-18 23:15:00,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:15:00,340 INFO L93 Difference]: Finished difference Result 1217 states and 1615 transitions. [2020-08-18 23:15:00,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 23:15:00,341 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 152 [2020-08-18 23:15:00,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:15:00,346 INFO L225 Difference]: With dead ends: 1217 [2020-08-18 23:15:00,346 INFO L226 Difference]: Without dead ends: 704 [2020-08-18 23:15:00,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2020-08-18 23:15:00,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2020-08-18 23:15:00,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 545. [2020-08-18 23:15:00,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2020-08-18 23:15:00,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 702 transitions. [2020-08-18 23:15:00,402 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 702 transitions. Word has length 152 [2020-08-18 23:15:00,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:15:00,402 INFO L479 AbstractCegarLoop]: Abstraction has 545 states and 702 transitions. [2020-08-18 23:15:00,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-18 23:15:00,403 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 702 transitions. [2020-08-18 23:15:00,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-08-18 23:15:00,405 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:15:00,406 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:15:00,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 23:15:00,406 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:15:00,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:15:00,406 INFO L82 PathProgramCache]: Analyzing trace with hash 948696336, now seen corresponding path program 1 times [2020-08-18 23:15:00,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:15:00,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412748686] [2020-08-18 23:15:00,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:15:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,611 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-18 23:15:00,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:15:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:15:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:15:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:15:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 23:15:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 23:15:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-18 23:15:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:15:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-18 23:15:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 23:15:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:15:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-18 23:15:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 23:15:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:15:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-18 23:15:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 23:15:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:00,971 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-08-18 23:15:00,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412748686] [2020-08-18 23:15:00,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:15:00,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 23:15:00,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015810478] [2020-08-18 23:15:00,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 23:15:00,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:15:00,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 23:15:00,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-08-18 23:15:00,979 INFO L87 Difference]: Start difference. First operand 545 states and 702 transitions. Second operand 11 states. [2020-08-18 23:15:01,224 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-18 23:15:02,566 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-08-18 23:15:02,775 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-18 23:15:02,940 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-18 23:15:03,128 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-18 23:15:03,307 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-18 23:15:05,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:15:05,011 INFO L93 Difference]: Finished difference Result 1168 states and 1528 transitions. [2020-08-18 23:15:05,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 23:15:05,012 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 164 [2020-08-18 23:15:05,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:15:05,017 INFO L225 Difference]: With dead ends: 1168 [2020-08-18 23:15:05,017 INFO L226 Difference]: Without dead ends: 648 [2020-08-18 23:15:05,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2020-08-18 23:15:05,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2020-08-18 23:15:05,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 550. [2020-08-18 23:15:05,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-08-18 23:15:05,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 707 transitions. [2020-08-18 23:15:05,066 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 707 transitions. Word has length 164 [2020-08-18 23:15:05,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:15:05,066 INFO L479 AbstractCegarLoop]: Abstraction has 550 states and 707 transitions. [2020-08-18 23:15:05,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 23:15:05,066 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 707 transitions. [2020-08-18 23:15:05,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-08-18 23:15:05,069 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:15:05,069 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:15:05,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 23:15:05,070 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:15:05,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:15:05,070 INFO L82 PathProgramCache]: Analyzing trace with hash 925896005, now seen corresponding path program 2 times [2020-08-18 23:15:05,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:15:05,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553502929] [2020-08-18 23:15:05,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:15:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,338 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-18 23:15:05,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:15:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:15:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:15:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:15:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 23:15:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 23:15:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-18 23:15:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 23:15:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:15:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-18 23:15:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:15:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-18 23:15:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:15:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-08-18 23:15:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:05,566 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-08-18 23:15:05,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553502929] [2020-08-18 23:15:05,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:15:05,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 23:15:05,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580508933] [2020-08-18 23:15:05,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 23:15:05,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:15:05,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 23:15:05,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-18 23:15:05,569 INFO L87 Difference]: Start difference. First operand 550 states and 707 transitions. Second operand 10 states. [2020-08-18 23:15:05,719 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-18 23:15:06,283 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-08-18 23:15:07,052 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-18 23:15:07,716 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-18 23:15:07,888 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-18 23:15:08,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:15:08,855 INFO L93 Difference]: Finished difference Result 1271 states and 1638 transitions. [2020-08-18 23:15:08,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 23:15:08,856 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 152 [2020-08-18 23:15:08,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:15:08,860 INFO L225 Difference]: With dead ends: 1271 [2020-08-18 23:15:08,861 INFO L226 Difference]: Without dead ends: 746 [2020-08-18 23:15:08,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-08-18 23:15:08,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2020-08-18 23:15:08,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 430. [2020-08-18 23:15:08,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-08-18 23:15:08,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 531 transitions. [2020-08-18 23:15:08,910 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 531 transitions. Word has length 152 [2020-08-18 23:15:08,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:15:08,911 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 531 transitions. [2020-08-18 23:15:08,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 23:15:08,911 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 531 transitions. [2020-08-18 23:15:08,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-08-18 23:15:08,913 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:15:08,913 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:15:08,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 23:15:08,914 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:15:08,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:15:08,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1391356121, now seen corresponding path program 1 times [2020-08-18 23:15:08,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:15:08,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1744810807] [2020-08-18 23:15:08,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:15:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,135 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-18 23:15:09,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:15:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:15:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:15:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:15:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-18 23:15:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 23:15:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 23:15:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-08-18 23:15:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-18 23:15:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-18 23:15:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-18 23:15:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 23:15:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-18 23:15:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-18 23:15:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-18 23:15:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-18 23:15:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-18 23:15:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 23:15:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:09,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-18 23:15:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:09,329 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-08-18 23:15:09,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1744810807] [2020-08-18 23:15:09,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 23:15:09,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 23:15:09,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893242014] [2020-08-18 23:15:09,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 23:15:09,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:15:09,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 23:15:09,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-08-18 23:15:09,332 INFO L87 Difference]: Start difference. First operand 430 states and 531 transitions. Second operand 8 states. [2020-08-18 23:15:09,490 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-08-18 23:15:12,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:15:12,318 INFO L93 Difference]: Finished difference Result 980 states and 1265 transitions. [2020-08-18 23:15:12,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 23:15:12,318 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 151 [2020-08-18 23:15:12,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:15:12,323 INFO L225 Difference]: With dead ends: 980 [2020-08-18 23:15:12,323 INFO L226 Difference]: Without dead ends: 592 [2020-08-18 23:15:12,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-18 23:15:12,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2020-08-18 23:15:12,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 453. [2020-08-18 23:15:12,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2020-08-18 23:15:12,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 568 transitions. [2020-08-18 23:15:12,370 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 568 transitions. Word has length 151 [2020-08-18 23:15:12,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:15:12,370 INFO L479 AbstractCegarLoop]: Abstraction has 453 states and 568 transitions. [2020-08-18 23:15:12,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 23:15:12,370 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 568 transitions. [2020-08-18 23:15:12,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-08-18 23:15:12,373 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:15:12,373 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:15:12,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 23:15:12,373 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:15:12,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:15:12,374 INFO L82 PathProgramCache]: Analyzing trace with hash -642852378, now seen corresponding path program 2 times [2020-08-18 23:15:12,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:15:12,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1948431101] [2020-08-18 23:15:12,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:15:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,627 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-18 23:15:12,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:15:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:15:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:15:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:15:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-18 23:15:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 23:15:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-18 23:15:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 23:15:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:15:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-18 23:15:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 23:15:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:15:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-08-18 23:15:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 23:15:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 23:15:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-18 23:15:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:15:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:15:12,954 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-08-18 23:15:12,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1948431101] [2020-08-18 23:15:12,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:15:12,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 23:15:12,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35828660] [2020-08-18 23:15:12,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 23:15:12,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:15:12,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 23:15:12,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-18 23:15:12,957 INFO L87 Difference]: Start difference. First operand 453 states and 568 transitions. Second operand 7 states. [2020-08-18 23:15:13,093 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-18 23:15:13,442 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-08-18 23:15:13,678 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-08-18 23:15:15,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:15:15,555 INFO L93 Difference]: Finished difference Result 553 states and 710 transitions. [2020-08-18 23:15:15,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 23:15:15,556 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2020-08-18 23:15:15,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:15:15,557 INFO L225 Difference]: With dead ends: 553 [2020-08-18 23:15:15,557 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 23:15:15,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-08-18 23:15:15,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 23:15:15,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 23:15:15,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 23:15:15,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 23:15:15,562 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 164 [2020-08-18 23:15:15,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:15:15,562 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 23:15:15,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 23:15:15,563 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 23:15:15,563 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 23:15:15,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-18 23:15:15,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 23:15:19,577 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 12 [2020-08-18 23:15:19,724 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 12 [2020-08-18 23:15:20,167 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 25 [2020-08-18 23:15:20,415 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 38 [2020-08-18 23:15:20,521 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 18 [2020-08-18 23:15:20,645 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 21 [2020-08-18 23:15:20,815 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 8 [2020-08-18 23:15:20,973 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 11 [2020-08-18 23:15:21,318 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 8 [2020-08-18 23:15:21,590 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 12 [2020-08-18 23:15:21,924 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 38 [2020-08-18 23:15:22,154 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 12 [2020-08-18 23:15:22,344 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 21 [2020-08-18 23:15:22,683 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 136 [2020-08-18 23:15:23,042 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 12 [2020-08-18 23:15:23,161 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 25