/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 -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 [2020-08-19 00:02:55,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 00:02:55,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 00:02:55,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 00:02:55,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 00:02:55,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 00:02:55,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 00:02:55,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 00:02:55,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 00:02:55,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 00:02:55,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 00:02:55,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 00:02:55,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 00:02:55,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 00:02:55,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 00:02:55,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 00:02:55,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 00:02:55,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 00:02:55,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 00:02:55,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 00:02:55,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 00:02:55,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 00:02:55,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 00:02:55,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 00:02:55,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 00:02:55,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 00:02:55,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 00:02:55,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 00:02:55,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 00:02:55,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 00:02:55,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 00:02:55,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 00:02:55,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 00:02:55,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 00:02:55,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 00:02:55,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 00:02:55,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 00:02:55,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 00:02:55,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 00:02:55,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 00:02:55,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 00:02:55,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-08-19 00:02:55,941 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 00:02:55,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 00:02:55,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 00:02:55,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 00:02:55,943 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 00:02:55,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 00:02:55,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 00:02:55,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 00:02:55,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 00:02:55,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 00:02:55,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 00:02:55,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 00:02:55,945 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 00:02:55,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 00:02:55,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 00:02:55,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 00:02:55,946 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 00:02:55,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 00:02:55,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 00:02:55,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 00:02:55,947 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 00:02:55,947 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 00:02:55,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 00:02:55,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 00:02:55,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 00:02:55,948 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 00:02:55,948 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-19 00:02:55,948 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; [2020-08-19 00:02:56,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 00:02:56,282 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 00:02:56,287 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 00:02:56,290 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 00:02:56,291 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 00:02:56,292 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2020-08-19 00:02:56,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b38af7cd/8d0dff4089584815a54771568a8eaf39/FLAGc9dd4871f [2020-08-19 00:02:56,943 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 00:02:56,944 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2020-08-19 00:02:56,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b38af7cd/8d0dff4089584815a54771568a8eaf39/FLAGc9dd4871f [2020-08-19 00:02:57,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3b38af7cd/8d0dff4089584815a54771568a8eaf39 [2020-08-19 00:02:57,197 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 00:02:57,198 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 00:02:57,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 00:02:57,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 00:02:57,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 00:02:57,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:02:57" (1/1) ... [2020-08-19 00:02:57,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@427c53a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:57, skipping insertion in model container [2020-08-19 00:02:57,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:02:57" (1/1) ... [2020-08-19 00:02:57,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 00:02:57,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 00:02:57,695 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1323] [2020-08-19 00:02:57,695 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] [2020-08-19 00:02:58,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:02:58,106 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 00:02:58,151 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1323] [2020-08-19 00:02:58,151 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] [2020-08-19 00:02:58,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 00:02:58,310 INFO L208 MainTranslator]: Completed translation [2020-08-19 00:02:58,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:58 WrapperNode [2020-08-19 00:02:58,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 00:02:58,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 00:02:58,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 00:02:58,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 00:02:58,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:58" (1/1) ... [2020-08-19 00:02:58,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:58" (1/1) ... [2020-08-19 00:02:58,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:58" (1/1) ... [2020-08-19 00:02:58,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:58" (1/1) ... [2020-08-19 00:02:58,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:58" (1/1) ... [2020-08-19 00:02:58,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:58" (1/1) ... [2020-08-19 00:02:58,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:58" (1/1) ... [2020-08-19 00:02:58,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 00:02:58,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 00:02:58,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 00:02:58,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 00:02:58,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 00:02:58,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 00:02:58,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 00:02:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-08-19 00:02:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-08-19 00:02:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-08-19 00:02:58,589 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-08-19 00:02:58,589 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-08-19 00:02:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-08-19 00:02:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-08-19 00:02:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-19 00:02:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-19 00:02:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-19 00:02:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-19 00:02:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-19 00:02:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-19 00:02:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-19 00:02:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-19 00:02:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-19 00:02:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-08-19 00:02:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_allocate_port [2020-08-19 00:02:58,597 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_free_port [2020-08-19 00:02:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_name [2020-08-19 00:02:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2020-08-19 00:02:58,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_len [2020-08-19 00:02:58,599 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_start [2020-08-19 00:02:58,599 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_valid [2020-08-19 00:02:58,600 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_len [2020-08-19 00:02:58,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_isa_probe [2020-08-19 00:02:58,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_pnp_probe [2020-08-19 00:02:58,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_init [2020-08-19 00:02:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_exit [2020-08-19 00:02:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 00:02:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-19 00:02:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-08-19 00:02:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-19 00:02:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-08-19 00:02:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-08-19 00:02:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-08-19 00:02:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-08-19 00:02:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_port [2020-08-19 00:02:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-08-19 00:02:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-08-19 00:02:58,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-08-19 00:02:58,606 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_phys [2020-08-19 00:02:58,606 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_port [2020-08-19 00:02:58,606 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-08-19 00:02:58,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-19 00:02:58,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-19 00:02:58,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-08-19 00:02:58,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-08-19 00:02:58,608 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-08-19 00:02:58,608 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2020-08-19 00:02:58,609 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_register_driver [2020-08-19 00:02:58,609 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_unregister_driver [2020-08-19 00:02:58,609 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-19 00:02:58,610 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-08-19 00:02:58,610 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-19 00:02:58,610 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-19 00:02:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 00:02:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-19 00:02:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-19 00:02:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-08-19 00:02:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-08-19 00:02:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 00:02:58,612 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-08-19 00:02:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-08-19 00:02:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-08-19 00:02:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-08-19 00:02:58,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 00:02:58,614 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-08-19 00:02:58,615 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-08-19 00:02:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-08-19 00:02:58,616 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-08-19 00:02:58,617 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-08-19 00:02:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-19 00:02:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-08-19 00:02:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-19 00:02:58,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-08-19 00:02:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 00:02:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-19 00:02:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 00:02:58,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-19 00:02:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 00:02:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-19 00:02:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-19 00:02:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 00:02:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-19 00:02:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-19 00:02:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-19 00:02:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-19 00:02:58,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-19 00:02:58,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-19 00:02:58,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-19 00:02:58,622 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-08-19 00:02:58,622 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-08-19 00:02:58,623 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_port [2020-08-19 00:02:58,623 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_port [2020-08-19 00:02:58,623 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_phys [2020-08-19 00:02:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_allocate_port [2020-08-19 00:02:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_free_port [2020-08-19 00:02:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_name [2020-08-19 00:02:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2020-08-19 00:02:58,625 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2020-08-19 00:02:58,625 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_len [2020-08-19 00:02:58,625 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_start [2020-08-19 00:02:58,625 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_valid [2020-08-19 00:02:58,626 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_len [2020-08-19 00:02:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_register_driver [2020-08-19 00:02:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_unregister_driver [2020-08-19 00:02:58,627 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_isa_probe [2020-08-19 00:02:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 00:02:58,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 00:02:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 00:02:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_pnp_probe [2020-08-19 00:02:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_init [2020-08-19 00:02:58,629 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_exit [2020-08-19 00:02:58,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-19 00:02:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-19 00:02:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-08-19 00:02:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 00:02:58,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-08-19 00:02:58,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-19 00:02:58,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-08-19 00:02:58,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-08-19 00:02:58,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-08-19 00:02:58,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-08-19 00:02:58,633 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 00:02:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 00:02:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 00:02:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 00:02:58,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-19 00:02:58,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 00:02:59,673 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-19 00:03:00,293 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 00:03:00,293 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-19 00:03:00,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:03:00 BoogieIcfgContainer [2020-08-19 00:03:00,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 00:03:00,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 00:03:00,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 00:03:00,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 00:03:00,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 12:02:57" (1/3) ... [2020-08-19 00:03:00,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@689e3857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:03:00, skipping insertion in model container [2020-08-19 00:03:00,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:02:58" (2/3) ... [2020-08-19 00:03:00,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@689e3857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:03:00, skipping insertion in model container [2020-08-19 00:03:00,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:03:00" (3/3) ... [2020-08-19 00:03:00,308 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 [2020-08-19 00:03:00,319 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 00:03:00,327 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 00:03:00,338 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 00:03:00,366 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 00:03:00,366 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 00:03:00,367 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 00:03:00,367 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 00:03:00,367 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 00:03:00,367 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 00:03:00,367 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 00:03:00,368 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 00:03:00,396 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states. [2020-08-19 00:03:00,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-08-19 00:03:00,411 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:03:00,413 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] [2020-08-19 00:03:00,413 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:03:00,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:03:00,420 INFO L82 PathProgramCache]: Analyzing trace with hash -2083768503, now seen corresponding path program 1 times [2020-08-19 00:03:00,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:03:00,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654826347] [2020-08-19 00:03:00,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:03:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:01,317 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 00:03:01,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:01,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:03:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:01,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:01,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:01,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-19 00:03:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:01,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-19 00:03:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:01,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:01,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-19 00:03:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:01,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-19 00:03:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:01,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-19 00:03:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:01,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-19 00:03:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:01,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-08-19 00:03:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:01,575 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-08-19 00:03:01,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654826347] [2020-08-19 00:03:01,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:03:01,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-19 00:03:01,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263180400] [2020-08-19 00:03:01,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 00:03:01,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:03:01,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 00:03:01,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-19 00:03:01,607 INFO L87 Difference]: Start difference. First operand 348 states. Second operand 10 states. [2020-08-19 00:03:01,843 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-08-19 00:03:03,080 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-08-19 00:03:04,319 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-08-19 00:03:04,532 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-08-19 00:03:04,749 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-08-19 00:03:04,976 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-08-19 00:03:07,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:03:07,270 INFO L93 Difference]: Finished difference Result 815 states and 1118 transitions. [2020-08-19 00:03:07,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-19 00:03:07,273 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 91 [2020-08-19 00:03:07,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:03:07,291 INFO L225 Difference]: With dead ends: 815 [2020-08-19 00:03:07,291 INFO L226 Difference]: Without dead ends: 429 [2020-08-19 00:03:07,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2020-08-19 00:03:07,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-08-19 00:03:07,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 306. [2020-08-19 00:03:07,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2020-08-19 00:03:07,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 386 transitions. [2020-08-19 00:03:07,409 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 386 transitions. Word has length 91 [2020-08-19 00:03:07,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:03:07,410 INFO L479 AbstractCegarLoop]: Abstraction has 306 states and 386 transitions. [2020-08-19 00:03:07,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 00:03:07,410 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 386 transitions. [2020-08-19 00:03:07,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-08-19 00:03:07,416 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:03:07,416 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] [2020-08-19 00:03:07,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 00:03:07,417 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:03:07,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:03:07,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1314856814, now seen corresponding path program 1 times [2020-08-19 00:03:07,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:03:07,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771944232] [2020-08-19 00:03:07,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:03:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:07,739 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 00:03:07,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:07,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:03:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:07,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:07,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:07,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:07,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-19 00:03:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:07,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-19 00:03:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:07,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:07,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 00:03:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:07,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-08-19 00:03:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:07,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-19 00:03:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:07,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-19 00:03:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:07,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-19 00:03:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:07,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-19 00:03:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:07,863 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-08-19 00:03:07,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771944232] [2020-08-19 00:03:07,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:03:07,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 00:03:07,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841310850] [2020-08-19 00:03:07,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 00:03:07,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:03:07,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 00:03:07,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-19 00:03:07,867 INFO L87 Difference]: Start difference. First operand 306 states and 386 transitions. Second operand 6 states. [2020-08-19 00:03:08,027 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-08-19 00:03:11,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:03:11,047 INFO L93 Difference]: Finished difference Result 722 states and 963 transitions. [2020-08-19 00:03:11,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 00:03:11,048 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 97 [2020-08-19 00:03:11,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:03:11,054 INFO L225 Difference]: With dead ends: 722 [2020-08-19 00:03:11,054 INFO L226 Difference]: Without dead ends: 441 [2020-08-19 00:03:11,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-08-19 00:03:11,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-08-19 00:03:11,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 308. [2020-08-19 00:03:11,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-08-19 00:03:11,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 388 transitions. [2020-08-19 00:03:11,106 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 388 transitions. Word has length 97 [2020-08-19 00:03:11,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:03:11,107 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 388 transitions. [2020-08-19 00:03:11,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 00:03:11,107 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 388 transitions. [2020-08-19 00:03:11,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-08-19 00:03:11,112 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:03:11,112 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] [2020-08-19 00:03:11,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 00:03:11,113 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:03:11,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:03:11,113 INFO L82 PathProgramCache]: Analyzing trace with hash -492581383, now seen corresponding path program 1 times [2020-08-19 00:03:11,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:03:11,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212923590] [2020-08-19 00:03:11,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:03:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,357 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 00:03:11,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:03:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-19 00:03:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-19 00:03:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-08-19 00:03:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 00:03:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 00:03:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:11,519 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-08-19 00:03:11,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212923590] [2020-08-19 00:03:11,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:03:11,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 00:03:11,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124346532] [2020-08-19 00:03:11,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 00:03:11,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:03:11,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 00:03:11,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-19 00:03:11,522 INFO L87 Difference]: Start difference. First operand 308 states and 388 transitions. Second operand 6 states. [2020-08-19 00:03:11,729 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-08-19 00:03:11,970 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-08-19 00:03:12,174 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-08-19 00:03:15,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:03:15,743 INFO L93 Difference]: Finished difference Result 945 states and 1246 transitions. [2020-08-19 00:03:15,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-19 00:03:15,744 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2020-08-19 00:03:15,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:03:15,751 INFO L225 Difference]: With dead ends: 945 [2020-08-19 00:03:15,751 INFO L226 Difference]: Without dead ends: 662 [2020-08-19 00:03:15,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-08-19 00:03:15,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2020-08-19 00:03:15,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 489. [2020-08-19 00:03:15,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-08-19 00:03:15,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 617 transitions. [2020-08-19 00:03:15,820 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 617 transitions. Word has length 123 [2020-08-19 00:03:15,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:03:15,820 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 617 transitions. [2020-08-19 00:03:15,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 00:03:15,821 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 617 transitions. [2020-08-19 00:03:15,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-08-19 00:03:15,824 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:03:15,824 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] [2020-08-19 00:03:15,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 00:03:15,825 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:03:15,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:03:15,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1067393612, now seen corresponding path program 1 times [2020-08-19 00:03:15,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:03:15,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158949968] [2020-08-19 00:03:15,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:03:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:16,073 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 00:03:16,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:16,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:03:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:16,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:16,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:16,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-19 00:03:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:16,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-19 00:03:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:16,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:16,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 00:03:16,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:16,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-08-19 00:03:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:16,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-19 00:03:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:16,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-19 00:03:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:16,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-19 00:03:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:16,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-19 00:03:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:16,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-19 00:03:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:16,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-19 00:03:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:16,243 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-08-19 00:03:16,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158949968] [2020-08-19 00:03:16,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:03:16,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-19 00:03:16,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013728749] [2020-08-19 00:03:16,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 00:03:16,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:03:16,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 00:03:16,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-19 00:03:16,247 INFO L87 Difference]: Start difference. First operand 489 states and 617 transitions. Second operand 7 states. [2020-08-19 00:03:16,398 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-08-19 00:03:19,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:03:19,785 INFO L93 Difference]: Finished difference Result 1237 states and 1674 transitions. [2020-08-19 00:03:19,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 00:03:19,786 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-08-19 00:03:19,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:03:19,794 INFO L225 Difference]: With dead ends: 1237 [2020-08-19 00:03:19,795 INFO L226 Difference]: Without dead ends: 773 [2020-08-19 00:03:19,798 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 [2020-08-19 00:03:19,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2020-08-19 00:03:19,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 541. [2020-08-19 00:03:19,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2020-08-19 00:03:19,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 699 transitions. [2020-08-19 00:03:19,896 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 699 transitions. Word has length 110 [2020-08-19 00:03:19,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:03:19,897 INFO L479 AbstractCegarLoop]: Abstraction has 541 states and 699 transitions. [2020-08-19 00:03:19,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 00:03:19,897 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 699 transitions. [2020-08-19 00:03:19,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-08-19 00:03:19,904 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:03:19,904 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] [2020-08-19 00:03:19,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 00:03:19,905 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:03:19,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:03:19,905 INFO L82 PathProgramCache]: Analyzing trace with hash 790920921, now seen corresponding path program 1 times [2020-08-19 00:03:19,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:03:19,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1429918376] [2020-08-19 00:03:19,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:03:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,234 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 00:03:20,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:03:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-19 00:03:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-19 00:03:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-08-19 00:03:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-19 00:03:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:20,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 00:03:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:20,473 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-08-19 00:03:20,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1429918376] [2020-08-19 00:03:20,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:03:20,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 00:03:20,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888953031] [2020-08-19 00:03:20,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 00:03:20,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:03:20,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 00:03:20,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-19 00:03:20,481 INFO L87 Difference]: Start difference. First operand 541 states and 699 transitions. Second operand 9 states. [2020-08-19 00:03:20,699 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-19 00:03:21,346 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-08-19 00:03:23,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:03:23,483 INFO L93 Difference]: Finished difference Result 1246 states and 1663 transitions. [2020-08-19 00:03:23,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 00:03:23,483 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 137 [2020-08-19 00:03:23,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:03:23,489 INFO L225 Difference]: With dead ends: 1246 [2020-08-19 00:03:23,489 INFO L226 Difference]: Without dead ends: 708 [2020-08-19 00:03:23,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-08-19 00:03:23,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-08-19 00:03:23,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 538. [2020-08-19 00:03:23,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-08-19 00:03:23,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 692 transitions. [2020-08-19 00:03:23,550 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 692 transitions. Word has length 137 [2020-08-19 00:03:23,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:03:23,551 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 692 transitions. [2020-08-19 00:03:23,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 00:03:23,551 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 692 transitions. [2020-08-19 00:03:23,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-08-19 00:03:23,554 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:03:23,554 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] [2020-08-19 00:03:23,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 00:03:23,554 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:03:23,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:03:23,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1536881969, now seen corresponding path program 1 times [2020-08-19 00:03:23,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:03:23,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047188371] [2020-08-19 00:03:23,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:03:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:23,867 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 00:03:23,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:23,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:03:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:23,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:23,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:23,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-19 00:03:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:23,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:23,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:03:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:24,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 00:03:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:24,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:24,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:24,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:24,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-19 00:03:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:24,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:24,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:24,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:24,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 00:03:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:24,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:24,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:24,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:24,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-19 00:03:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:24,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:24,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 00:03:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:24,115 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-08-19 00:03:24,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047188371] [2020-08-19 00:03:24,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:03:24,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-19 00:03:24,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741393727] [2020-08-19 00:03:24,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 00:03:24,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:03:24,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 00:03:24,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-19 00:03:24,118 INFO L87 Difference]: Start difference. First operand 538 states and 692 transitions. Second operand 10 states. [2020-08-19 00:03:24,294 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-19 00:03:25,037 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-19 00:03:25,246 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-19 00:03:28,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:03:28,132 INFO L93 Difference]: Finished difference Result 1233 states and 1636 transitions. [2020-08-19 00:03:28,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 00:03:28,133 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 152 [2020-08-19 00:03:28,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:03:28,139 INFO L225 Difference]: With dead ends: 1233 [2020-08-19 00:03:28,140 INFO L226 Difference]: Without dead ends: 702 [2020-08-19 00:03:28,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2020-08-19 00:03:28,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2020-08-19 00:03:28,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 538. [2020-08-19 00:03:28,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-08-19 00:03:28,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 690 transitions. [2020-08-19 00:03:28,199 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 690 transitions. Word has length 152 [2020-08-19 00:03:28,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:03:28,200 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 690 transitions. [2020-08-19 00:03:28,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 00:03:28,200 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 690 transitions. [2020-08-19 00:03:28,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-08-19 00:03:28,203 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:03:28,204 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] [2020-08-19 00:03:28,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 00:03:28,204 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:03:28,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:03:28,204 INFO L82 PathProgramCache]: Analyzing trace with hash -436283409, now seen corresponding path program 1 times [2020-08-19 00:03:28,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:03:28,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108599311] [2020-08-19 00:03:28,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:03:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,489 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 00:03:28,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:03:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-19 00:03:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:03:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 00:03:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-19 00:03:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 00:03:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:28,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-19 00:03:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 00:03:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:28,862 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-08-19 00:03:28,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108599311] [2020-08-19 00:03:28,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:03:28,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-19 00:03:28,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020964217] [2020-08-19 00:03:28,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 00:03:28,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:03:28,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 00:03:28,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-08-19 00:03:28,865 INFO L87 Difference]: Start difference. First operand 538 states and 690 transitions. Second operand 13 states. [2020-08-19 00:03:29,045 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-19 00:03:29,954 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-19 00:03:30,414 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-19 00:03:30,622 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-19 00:03:30,857 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-19 00:03:31,082 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-19 00:03:31,293 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-08-19 00:03:31,516 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-08-19 00:03:33,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:03:33,591 INFO L93 Difference]: Finished difference Result 1217 states and 1615 transitions. [2020-08-19 00:03:33,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 00:03:33,592 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 152 [2020-08-19 00:03:33,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:03:33,598 INFO L225 Difference]: With dead ends: 1217 [2020-08-19 00:03:33,598 INFO L226 Difference]: Without dead ends: 704 [2020-08-19 00:03:33,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2020-08-19 00:03:33,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2020-08-19 00:03:33,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 545. [2020-08-19 00:03:33,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2020-08-19 00:03:33,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 702 transitions. [2020-08-19 00:03:33,654 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 702 transitions. Word has length 152 [2020-08-19 00:03:33,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:03:33,655 INFO L479 AbstractCegarLoop]: Abstraction has 545 states and 702 transitions. [2020-08-19 00:03:33,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 00:03:33,655 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 702 transitions. [2020-08-19 00:03:33,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-08-19 00:03:33,658 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:03:33,658 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:03:33,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 00:03:33,659 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:03:33,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:03:33,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1538409515, now seen corresponding path program 1 times [2020-08-19 00:03:33,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:03:33,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543613400] [2020-08-19 00:03:33,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:03:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:33,964 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 00:03:33,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:03:34,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-19 00:03:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:03:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 00:03:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:34,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-19 00:03:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 00:03:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-19 00:03:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 00:03:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-19 00:03:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-08-19 00:03:34,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543613400] [2020-08-19 00:03:34,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:03:34,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-19 00:03:34,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991223971] [2020-08-19 00:03:34,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 00:03:34,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:03:34,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 00:03:34,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-08-19 00:03:34,226 INFO L87 Difference]: Start difference. First operand 545 states and 702 transitions. Second operand 11 states. [2020-08-19 00:03:34,389 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-19 00:03:35,570 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-08-19 00:03:35,790 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-19 00:03:35,993 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-19 00:03:36,200 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-19 00:03:36,400 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-19 00:03:38,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:03:38,348 INFO L93 Difference]: Finished difference Result 1168 states and 1528 transitions. [2020-08-19 00:03:38,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-19 00:03:38,349 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 158 [2020-08-19 00:03:38,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:03:38,354 INFO L225 Difference]: With dead ends: 1168 [2020-08-19 00:03:38,354 INFO L226 Difference]: Without dead ends: 648 [2020-08-19 00:03:38,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2020-08-19 00:03:38,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2020-08-19 00:03:38,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 550. [2020-08-19 00:03:38,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-08-19 00:03:38,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 707 transitions. [2020-08-19 00:03:38,404 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 707 transitions. Word has length 158 [2020-08-19 00:03:38,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:03:38,404 INFO L479 AbstractCegarLoop]: Abstraction has 550 states and 707 transitions. [2020-08-19 00:03:38,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 00:03:38,404 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 707 transitions. [2020-08-19 00:03:38,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-08-19 00:03:38,407 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:03:38,407 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 00:03:38,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 00:03:38,407 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:03:38,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:03:38,408 INFO L82 PathProgramCache]: Analyzing trace with hash -432995670, now seen corresponding path program 2 times [2020-08-19 00:03:38,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:03:38,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886668347] [2020-08-19 00:03:38,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:03:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,671 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 00:03:38,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:03:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-19 00:03:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:03:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 00:03:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 00:03:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-19 00:03:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-19 00:03:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-08-19 00:03:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:38,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 00:03:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:39,039 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-08-19 00:03:39,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886668347] [2020-08-19 00:03:39,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:03:39,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-19 00:03:39,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999544039] [2020-08-19 00:03:39,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 00:03:39,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:03:39,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 00:03:39,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-19 00:03:39,041 INFO L87 Difference]: Start difference. First operand 550 states and 707 transitions. Second operand 10 states. [2020-08-19 00:03:39,347 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-19 00:03:40,431 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-08-19 00:03:41,432 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-19 00:03:42,478 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-19 00:03:42,701 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-19 00:03:44,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:03:44,022 INFO L93 Difference]: Finished difference Result 1271 states and 1638 transitions. [2020-08-19 00:03:44,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 00:03:44,022 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-08-19 00:03:44,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:03:44,027 INFO L225 Difference]: With dead ends: 1271 [2020-08-19 00:03:44,027 INFO L226 Difference]: Without dead ends: 746 [2020-08-19 00:03:44,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-08-19 00:03:44,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2020-08-19 00:03:44,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 430. [2020-08-19 00:03:44,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-08-19 00:03:44,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 531 transitions. [2020-08-19 00:03:44,073 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 531 transitions. Word has length 158 [2020-08-19 00:03:44,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:03:44,074 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 531 transitions. [2020-08-19 00:03:44,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 00:03:44,074 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 531 transitions. [2020-08-19 00:03:44,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-08-19 00:03:44,076 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:03:44,077 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] [2020-08-19 00:03:44,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 00:03:44,077 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:03:44,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:03:44,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1391356121, now seen corresponding path program 1 times [2020-08-19 00:03:44,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:03:44,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844076695] [2020-08-19 00:03:44,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:03:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,360 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 00:03:44,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:03:44,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-19 00:03:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-19 00:03:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 00:03:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-08-19 00:03:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-19 00:03:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-19 00:03:44,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-19 00:03:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 00:03:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-19 00:03:44,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-19 00:03:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-19 00:03:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-19 00:03:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-19 00:03:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 00:03:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-19 00:03:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:44,540 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-08-19 00:03:44,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844076695] [2020-08-19 00:03:44,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 00:03:44,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-19 00:03:44,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183254961] [2020-08-19 00:03:44,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 00:03:44,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:03:44,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 00:03:44,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-08-19 00:03:44,543 INFO L87 Difference]: Start difference. First operand 430 states and 531 transitions. Second operand 8 states. [2020-08-19 00:03:44,740 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-08-19 00:03:47,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:03:47,942 INFO L93 Difference]: Finished difference Result 980 states and 1265 transitions. [2020-08-19 00:03:47,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 00:03:47,943 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 151 [2020-08-19 00:03:47,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:03:47,947 INFO L225 Difference]: With dead ends: 980 [2020-08-19 00:03:47,948 INFO L226 Difference]: Without dead ends: 592 [2020-08-19 00:03:47,950 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-19 00:03:47,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2020-08-19 00:03:47,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 453. [2020-08-19 00:03:47,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2020-08-19 00:03:47,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 568 transitions. [2020-08-19 00:03:47,994 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 568 transitions. Word has length 151 [2020-08-19 00:03:47,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:03:47,995 INFO L479 AbstractCegarLoop]: Abstraction has 453 states and 568 transitions. [2020-08-19 00:03:47,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 00:03:47,995 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 568 transitions. [2020-08-19 00:03:47,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-08-19 00:03:47,997 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 00:03:47,997 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] [2020-08-19 00:03:47,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 00:03:47,998 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 00:03:47,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 00:03:47,998 INFO L82 PathProgramCache]: Analyzing trace with hash -642852378, now seen corresponding path program 2 times [2020-08-19 00:03:47,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 00:03:47,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585324036] [2020-08-19 00:03:47,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 00:03:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,361 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 00:03:48,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 00:03:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 00:03:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 00:03:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-19 00:03:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 00:03:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 00:03:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 00:03:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-19 00:03:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 00:03:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-08-19 00:03:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 00:03:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 00:03:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-19 00:03:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 00:03:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 00:03:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-08-19 00:03:48,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585324036] [2020-08-19 00:03:48,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 00:03:48,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 00:03:48,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787844530] [2020-08-19 00:03:48,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 00:03:48,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 00:03:48,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 00:03:48,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-19 00:03:48,694 INFO L87 Difference]: Start difference. First operand 453 states and 568 transitions. Second operand 7 states. [2020-08-19 00:03:48,857 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-19 00:03:49,159 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-08-19 00:03:49,359 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-08-19 00:03:51,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 00:03:51,570 INFO L93 Difference]: Finished difference Result 553 states and 710 transitions. [2020-08-19 00:03:51,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 00:03:51,571 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2020-08-19 00:03:51,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 00:03:51,572 INFO L225 Difference]: With dead ends: 553 [2020-08-19 00:03:51,572 INFO L226 Difference]: Without dead ends: 0 [2020-08-19 00:03:51,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-08-19 00:03:51,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-19 00:03:51,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-19 00:03:51,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-19 00:03:51,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-19 00:03:51,575 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 164 [2020-08-19 00:03:51,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 00:03:51,576 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-19 00:03:51,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 00:03:51,576 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-19 00:03:51,576 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-19 00:03:51,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-19 00:03:51,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-19 00:03:51,845 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 7