/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 -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 04:05:53,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 04:05:53,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 04:05:53,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 04:05:53,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 04:05:53,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 04:05:53,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 04:05:53,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 04:05:53,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 04:05:53,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 04:05:53,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 04:05:53,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 04:05:53,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 04:05:53,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 04:05:53,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 04:05:53,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 04:05:53,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 04:05:53,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 04:05:53,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 04:05:53,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 04:05:53,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 04:05:53,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 04:05:53,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 04:05:53,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 04:05:53,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 04:05:53,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 04:05:53,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 04:05:53,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 04:05:53,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 04:05:53,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 04:05:53,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 04:05:53,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 04:05:53,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 04:05:53,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 04:05:53,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 04:05:53,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 04:05:53,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 04:05:53,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 04:05:53,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 04:05:53,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 04:05:53,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 04:05:53,495 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 04:05:53,535 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 04:05:53,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 04:05:53,538 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 04:05:53,538 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 04:05:53,538 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 04:05:53,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 04:05:53,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 04:05:53,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 04:05:53,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 04:05:53,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 04:05:53,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 04:05:53,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 04:05:53,541 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 04:05:53,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 04:05:53,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 04:05:53,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 04:05:53,542 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 04:05:53,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 04:05:53,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 04:05:53,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 04:05:53,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 04:05:53,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 04:05:53,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 04:05:53,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 04:05:53,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 04:05:53,544 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 04:05:53,544 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-19 04:05:53,544 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; [2020-08-19 04:05:53,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 04:05:53,880 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 04:05:53,885 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 04:05:53,887 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 04:05:53,888 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 04:05:53,889 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2020-08-19 04:05:53,966 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/08a8436de/fca5fd5a7b55467a9ffb71a8547f0f98/FLAG176c1913a [2020-08-19 04:05:54,674 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 04:05:54,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2020-08-19 04:05:54,696 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/08a8436de/fca5fd5a7b55467a9ffb71a8547f0f98/FLAG176c1913a [2020-08-19 04:05:54,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/08a8436de/fca5fd5a7b55467a9ffb71a8547f0f98 [2020-08-19 04:05:54,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 04:05:54,849 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 04:05:54,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 04:05:54,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 04:05:54,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 04:05:54,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:05:54" (1/1) ... [2020-08-19 04:05:54,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4956b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:05:54, skipping insertion in model container [2020-08-19 04:05:54,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:05:54" (1/1) ... [2020-08-19 04:05:54,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 04:05:54,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 04:05:55,403 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 04:05:55,408 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 04:05:55,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:05:55,789 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 04:05:55,839 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 04:05:55,839 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 04:05:55,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:05:55,988 INFO L208 MainTranslator]: Completed translation [2020-08-19 04:05:55,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:05:55 WrapperNode [2020-08-19 04:05:55,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 04:05:55,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 04:05:55,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 04:05:55,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 04:05:56,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:05:55" (1/1) ... [2020-08-19 04:05:56,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:05:55" (1/1) ... [2020-08-19 04:05:56,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:05:55" (1/1) ... [2020-08-19 04:05:56,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:05:55" (1/1) ... [2020-08-19 04:05:56,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:05:55" (1/1) ... [2020-08-19 04:05:56,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:05:55" (1/1) ... [2020-08-19 04:05:56,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:05:55" (1/1) ... [2020-08-19 04:05:56,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 04:05:56,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 04:05:56,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 04:05:56,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 04:05:56,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:05:55" (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 04:05:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 04:05:56,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 04:05:56,245 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-08-19 04:05:56,245 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-08-19 04:05:56,245 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-08-19 04:05:56,246 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-08-19 04:05:56,246 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-08-19 04:05:56,248 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-08-19 04:05:56,248 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-08-19 04:05:56,248 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-19 04:05:56,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-19 04:05:56,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-19 04:05:56,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-19 04:05:56,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-19 04:05:56,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-19 04:05:56,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-19 04:05:56,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-19 04:05:56,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-19 04:05:56,253 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-08-19 04:05:56,253 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_allocate_port [2020-08-19 04:05:56,253 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_free_port [2020-08-19 04:05:56,253 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_name [2020-08-19 04:05:56,253 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2020-08-19 04:05:56,254 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_len [2020-08-19 04:05:56,254 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_start [2020-08-19 04:05:56,254 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_valid [2020-08-19 04:05:56,254 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_len [2020-08-19 04:05:56,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_isa_probe [2020-08-19 04:05:56,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_pnp_probe [2020-08-19 04:05:56,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_init [2020-08-19 04:05:56,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_exit [2020-08-19 04:05:56,255 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 04:05:56,255 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-19 04:05:56,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-08-19 04:05:56,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-19 04:05:56,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-08-19 04:05:56,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-08-19 04:05:56,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-08-19 04:05:56,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-08-19 04:05:56,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_port [2020-08-19 04:05:56,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-08-19 04:05:56,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-08-19 04:05:56,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-08-19 04:05:56,257 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_phys [2020-08-19 04:05:56,257 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_port [2020-08-19 04:05:56,257 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-08-19 04:05:56,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-19 04:05:56,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-19 04:05:56,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-08-19 04:05:56,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-08-19 04:05:56,258 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-08-19 04:05:56,258 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2020-08-19 04:05:56,258 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_register_driver [2020-08-19 04:05:56,258 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_unregister_driver [2020-08-19 04:05:56,259 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-19 04:05:56,259 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-08-19 04:05:56,259 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-19 04:05:56,259 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-19 04:05:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 04:05:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-19 04:05:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-19 04:05:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-08-19 04:05:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-08-19 04:05:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 04:05:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-08-19 04:05:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-08-19 04:05:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-08-19 04:05:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-08-19 04:05:56,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 04:05:56,261 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-08-19 04:05:56,261 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-08-19 04:05:56,261 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-08-19 04:05:56,261 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-08-19 04:05:56,261 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-08-19 04:05:56,262 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-19 04:05:56,262 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-08-19 04:05:56,262 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-19 04:05:56,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-08-19 04:05:56,262 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 04:05:56,262 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-19 04:05:56,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 04:05:56,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-19 04:05:56,263 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 04:05:56,263 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-19 04:05:56,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-19 04:05:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 04:05:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-19 04:05:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-19 04:05:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-19 04:05:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-19 04:05:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-19 04:05:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-19 04:05:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-19 04:05:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-08-19 04:05:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-08-19 04:05:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_port [2020-08-19 04:05:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_port [2020-08-19 04:05:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_phys [2020-08-19 04:05:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_allocate_port [2020-08-19 04:05:56,265 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_free_port [2020-08-19 04:05:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_name [2020-08-19 04:05:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2020-08-19 04:05:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2020-08-19 04:05:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_len [2020-08-19 04:05:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_start [2020-08-19 04:05:56,266 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_valid [2020-08-19 04:05:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_len [2020-08-19 04:05:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_register_driver [2020-08-19 04:05:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_unregister_driver [2020-08-19 04:05:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_isa_probe [2020-08-19 04:05:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 04:05:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 04:05:56,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 04:05:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_pnp_probe [2020-08-19 04:05:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_init [2020-08-19 04:05:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_exit [2020-08-19 04:05:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-19 04:05:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-19 04:05:56,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-08-19 04:05:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 04:05:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-08-19 04:05:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-19 04:05:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-08-19 04:05:56,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-08-19 04:05:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-08-19 04:05:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-08-19 04:05:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 04:05:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 04:05:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 04:05:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 04:05:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-19 04:05:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 04:05:56,897 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-19 04:05:57,588 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 04:05:57,588 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-19 04:05:57,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:05:57 BoogieIcfgContainer [2020-08-19 04:05:57,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 04:05:57,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 04:05:57,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 04:05:57,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 04:05:57,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 04:05:54" (1/3) ... [2020-08-19 04:05:57,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e11f485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:05:57, skipping insertion in model container [2020-08-19 04:05:57,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:05:55" (2/3) ... [2020-08-19 04:05:57,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e11f485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:05:57, skipping insertion in model container [2020-08-19 04:05:57,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:05:57" (3/3) ... [2020-08-19 04:05:57,616 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 04:05:57,627 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 04:05:57,636 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 04:05:57,651 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 04:05:57,683 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 04:05:57,683 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 04:05:57,683 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 04:05:57,684 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 04:05:57,684 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 04:05:57,684 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 04:05:57,684 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 04:05:57,684 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 04:05:57,715 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states. [2020-08-19 04:05:57,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-08-19 04:05:57,729 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:05:57,731 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 04:05:57,731 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:05:57,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:05:57,737 INFO L82 PathProgramCache]: Analyzing trace with hash -2083768503, now seen corresponding path program 1 times [2020-08-19 04:05:57,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:05:57,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613132018] [2020-08-19 04:05:57,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:05:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:05:58,594 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 04:05:58,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:05:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:05:58,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:05:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:05:58,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:05:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:05:58,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:05:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:05:58,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-19 04:05:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:05:58,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-19 04:05:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:05:58,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:05:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:05:58,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-08-19 04:05:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:05:58,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-19 04:05:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:05:58,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-19 04:05:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:05:58,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-19 04:05:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:05:58,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-08-19 04:05:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:05:58,781 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 04:05:58,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [613132018] [2020-08-19 04:05:58,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:05:58,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-19 04:05:58,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991011362] [2020-08-19 04:05:58,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 04:05:58,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:05:58,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 04:05:58,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-19 04:05:58,809 INFO L87 Difference]: Start difference. First operand 348 states. Second operand 10 states. [2020-08-19 04:05:59,002 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-08-19 04:05:59,985 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-08-19 04:06:01,005 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-08-19 04:06:01,198 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-08-19 04:06:01,393 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-08-19 04:06:01,578 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-08-19 04:06:03,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:06:03,660 INFO L93 Difference]: Finished difference Result 815 states and 1118 transitions. [2020-08-19 04:06:03,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-19 04:06:03,662 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 91 [2020-08-19 04:06:03,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:06:03,682 INFO L225 Difference]: With dead ends: 815 [2020-08-19 04:06:03,683 INFO L226 Difference]: Without dead ends: 429 [2020-08-19 04:06:03,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2020-08-19 04:06:03,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-08-19 04:06:03,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 306. [2020-08-19 04:06:03,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2020-08-19 04:06:03,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 386 transitions. [2020-08-19 04:06:03,805 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 386 transitions. Word has length 91 [2020-08-19 04:06:03,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:06:03,806 INFO L479 AbstractCegarLoop]: Abstraction has 306 states and 386 transitions. [2020-08-19 04:06:03,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 04:06:03,807 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 386 transitions. [2020-08-19 04:06:03,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-08-19 04:06:03,813 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:06:03,813 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 04:06:03,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 04:06:03,814 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:06:03,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:06:03,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1314856814, now seen corresponding path program 1 times [2020-08-19 04:06:03,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:06:03,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [318549687] [2020-08-19 04:06:03,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:06:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:04,073 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 04:06:04,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:06:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:04,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:06:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:04,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:04,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:06:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:04,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-19 04:06:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:04,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-19 04:06:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:04,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:04,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:06:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:04,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-08-19 04:06:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:04,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-19 04:06:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:04,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-19 04:06:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:04,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-19 04:06:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:04,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-19 04:06:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:04,181 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 04:06:04,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [318549687] [2020-08-19 04:06:04,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:06:04,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:06:04,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15694817] [2020-08-19 04:06:04,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:06:04,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:06:04,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:06:04,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:06:04,186 INFO L87 Difference]: Start difference. First operand 306 states and 386 transitions. Second operand 6 states. [2020-08-19 04:06:04,321 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-08-19 04:06:07,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:06:07,020 INFO L93 Difference]: Finished difference Result 722 states and 963 transitions. [2020-08-19 04:06:07,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 04:06:07,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 97 [2020-08-19 04:06:07,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:06:07,028 INFO L225 Difference]: With dead ends: 722 [2020-08-19 04:06:07,028 INFO L226 Difference]: Without dead ends: 441 [2020-08-19 04:06:07,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-08-19 04:06:07,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-08-19 04:06:07,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 308. [2020-08-19 04:06:07,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-08-19 04:06:07,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 388 transitions. [2020-08-19 04:06:07,082 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 388 transitions. Word has length 97 [2020-08-19 04:06:07,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:06:07,083 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 388 transitions. [2020-08-19 04:06:07,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:06:07,083 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 388 transitions. [2020-08-19 04:06:07,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-08-19 04:06:07,090 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:06:07,090 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 04:06:07,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 04:06:07,091 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:06:07,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:06:07,091 INFO L82 PathProgramCache]: Analyzing trace with hash -492581383, now seen corresponding path program 1 times [2020-08-19 04:06:07,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:06:07,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [49593826] [2020-08-19 04:06:07,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:06:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,313 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 04:06:07,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:06:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:06:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:06:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-19 04:06:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-19 04:06:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-08-19 04:06:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 04:06:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:06:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:07,593 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 04:06:07,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [49593826] [2020-08-19 04:06:07,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:06:07,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:06:07,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143429306] [2020-08-19 04:06:07,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:06:07,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:06:07,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:06:07,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:06:07,598 INFO L87 Difference]: Start difference. First operand 308 states and 388 transitions. Second operand 6 states. [2020-08-19 04:06:07,726 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-08-19 04:06:07,960 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-08-19 04:06:08,113 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-08-19 04:06:11,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:06:11,370 INFO L93 Difference]: Finished difference Result 945 states and 1246 transitions. [2020-08-19 04:06:11,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-19 04:06:11,371 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2020-08-19 04:06:11,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:06:11,381 INFO L225 Difference]: With dead ends: 945 [2020-08-19 04:06:11,381 INFO L226 Difference]: Without dead ends: 662 [2020-08-19 04:06:11,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-08-19 04:06:11,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2020-08-19 04:06:11,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 489. [2020-08-19 04:06:11,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-08-19 04:06:11,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 617 transitions. [2020-08-19 04:06:11,492 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 617 transitions. Word has length 123 [2020-08-19 04:06:11,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:06:11,494 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 617 transitions. [2020-08-19 04:06:11,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:06:11,494 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 617 transitions. [2020-08-19 04:06:11,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-08-19 04:06:11,499 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:06:11,499 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 04:06:11,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 04:06:11,500 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:06:11,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:06:11,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1067393612, now seen corresponding path program 1 times [2020-08-19 04:06:11,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:06:11,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134599179] [2020-08-19 04:06:11,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:06:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:11,736 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 04:06:11,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:06:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:11,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:06:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:11,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:11,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:06:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:11,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-19 04:06:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:11,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-19 04:06:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:11,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:11,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:06:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:11,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-08-19 04:06:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:11,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-19 04:06:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:11,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-19 04:06:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:11,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-19 04:06:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:11,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-19 04:06:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:11,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-19 04:06:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:11,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-19 04:06:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:11,875 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 04:06:11,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134599179] [2020-08-19 04:06:11,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:06:11,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-19 04:06:11,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260502469] [2020-08-19 04:06:11,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 04:06:11,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:06:11,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 04:06:11,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-19 04:06:11,878 INFO L87 Difference]: Start difference. First operand 489 states and 617 transitions. Second operand 7 states. [2020-08-19 04:06:12,010 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-08-19 04:06:15,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:06:15,194 INFO L93 Difference]: Finished difference Result 1237 states and 1674 transitions. [2020-08-19 04:06:15,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 04:06:15,194 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-08-19 04:06:15,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:06:15,203 INFO L225 Difference]: With dead ends: 1237 [2020-08-19 04:06:15,203 INFO L226 Difference]: Without dead ends: 773 [2020-08-19 04:06:15,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-19 04:06:15,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2020-08-19 04:06:15,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 541. [2020-08-19 04:06:15,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2020-08-19 04:06:15,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 699 transitions. [2020-08-19 04:06:15,292 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 699 transitions. Word has length 110 [2020-08-19 04:06:15,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:06:15,293 INFO L479 AbstractCegarLoop]: Abstraction has 541 states and 699 transitions. [2020-08-19 04:06:15,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 04:06:15,295 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 699 transitions. [2020-08-19 04:06:15,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-08-19 04:06:15,301 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:06:15,301 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] [2020-08-19 04:06:15,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 04:06:15,302 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:06:15,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:06:15,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1281815870, now seen corresponding path program 1 times [2020-08-19 04:06:15,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:06:15,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977357481] [2020-08-19 04:06:15,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:06:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,550 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 04:06:15,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:06:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:06:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:06:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-19 04:06:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-19 04:06:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:15,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-08-19 04:06:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-19 04:06:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 04:06:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:06:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:15,748 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 04:06:15,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977357481] [2020-08-19 04:06:15,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:06:15,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 04:06:15,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538644245] [2020-08-19 04:06:15,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 04:06:15,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:06:15,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 04:06:15,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:06:15,751 INFO L87 Difference]: Start difference. First operand 541 states and 699 transitions. Second operand 9 states. [2020-08-19 04:06:15,895 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-19 04:06:16,486 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-08-19 04:06:19,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:06:19,037 INFO L93 Difference]: Finished difference Result 1246 states and 1663 transitions. [2020-08-19 04:06:19,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 04:06:19,038 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 143 [2020-08-19 04:06:19,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:06:19,047 INFO L225 Difference]: With dead ends: 1246 [2020-08-19 04:06:19,047 INFO L226 Difference]: Without dead ends: 708 [2020-08-19 04:06:19,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-08-19 04:06:19,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-08-19 04:06:19,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 538. [2020-08-19 04:06:19,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-08-19 04:06:19,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 692 transitions. [2020-08-19 04:06:19,120 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 692 transitions. Word has length 143 [2020-08-19 04:06:19,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:06:19,124 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 692 transitions. [2020-08-19 04:06:19,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 04:06:19,124 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 692 transitions. [2020-08-19 04:06:19,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-08-19 04:06:19,128 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:06:19,129 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 04:06:19,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 04:06:19,129 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:06:19,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:06:19,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1536881969, now seen corresponding path program 1 times [2020-08-19 04:06:19,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:06:19,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954177016] [2020-08-19 04:06:19,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:06:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,417 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 04:06:19,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:06:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:06:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:06:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-19 04:06:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:06:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 04:06:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:19,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-19 04:06:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 04:06:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-19 04:06:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:06:19,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:19,637 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 04:06:19,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1954177016] [2020-08-19 04:06:19,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:06:19,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-19 04:06:19,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38367646] [2020-08-19 04:06:19,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 04:06:19,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:06:19,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 04:06:19,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-19 04:06:19,640 INFO L87 Difference]: Start difference. First operand 538 states and 692 transitions. Second operand 10 states. [2020-08-19 04:06:19,789 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-19 04:06:20,592 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-19 04:06:20,762 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-19 04:06:23,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:06:23,420 INFO L93 Difference]: Finished difference Result 1233 states and 1636 transitions. [2020-08-19 04:06:23,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 04:06:23,421 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 152 [2020-08-19 04:06:23,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:06:23,426 INFO L225 Difference]: With dead ends: 1233 [2020-08-19 04:06:23,426 INFO L226 Difference]: Without dead ends: 702 [2020-08-19 04:06:23,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2020-08-19 04:06:23,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2020-08-19 04:06:23,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 538. [2020-08-19 04:06:23,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-08-19 04:06:23,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 690 transitions. [2020-08-19 04:06:23,479 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 690 transitions. Word has length 152 [2020-08-19 04:06:23,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:06:23,479 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 690 transitions. [2020-08-19 04:06:23,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 04:06:23,479 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 690 transitions. [2020-08-19 04:06:23,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-08-19 04:06:23,483 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:06:23,483 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 04:06:23,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 04:06:23,484 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:06:23,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:06:23,484 INFO L82 PathProgramCache]: Analyzing trace with hash -968590774, now seen corresponding path program 1 times [2020-08-19 04:06:23,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:06:23,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882727474] [2020-08-19 04:06:23,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:06:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:23,784 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 04:06:23,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:06:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:23,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:06:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:23,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:23,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:06:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:23,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-19 04:06:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:23,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:23,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:06:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:23,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 04:06:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:23,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:24,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:24,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:24,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-19 04:06:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:24,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:24,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:24,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:24,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 04:06:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:24,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:24,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:24,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:24,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-19 04:06:24,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:24,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:24,248 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 04:06:24,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882727474] [2020-08-19 04:06:24,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:06:24,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-19 04:06:24,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953852294] [2020-08-19 04:06:24,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-19 04:06:24,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:06:24,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-19 04:06:24,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-08-19 04:06:24,252 INFO L87 Difference]: Start difference. First operand 538 states and 690 transitions. Second operand 13 states. [2020-08-19 04:06:24,481 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-19 04:06:25,532 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-19 04:06:25,985 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-19 04:06:26,171 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-19 04:06:26,377 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-19 04:06:26,575 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-08-19 04:06:26,777 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-08-19 04:06:26,990 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-08-19 04:06:29,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:06:29,018 INFO L93 Difference]: Finished difference Result 1217 states and 1615 transitions. [2020-08-19 04:06:29,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 04:06:29,018 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 146 [2020-08-19 04:06:29,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:06:29,023 INFO L225 Difference]: With dead ends: 1217 [2020-08-19 04:06:29,023 INFO L226 Difference]: Without dead ends: 704 [2020-08-19 04:06:29,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2020-08-19 04:06:29,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2020-08-19 04:06:29,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 545. [2020-08-19 04:06:29,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2020-08-19 04:06:29,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 702 transitions. [2020-08-19 04:06:29,082 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 702 transitions. Word has length 146 [2020-08-19 04:06:29,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:06:29,084 INFO L479 AbstractCegarLoop]: Abstraction has 545 states and 702 transitions. [2020-08-19 04:06:29,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-19 04:06:29,084 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 702 transitions. [2020-08-19 04:06:29,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-08-19 04:06:29,086 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:06:29,087 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 04:06:29,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 04:06:29,087 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:06:29,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:06:29,088 INFO L82 PathProgramCache]: Analyzing trace with hash 948696336, now seen corresponding path program 1 times [2020-08-19 04:06:29,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:06:29,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379435577] [2020-08-19 04:06:29,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:06:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,310 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 04:06:29,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:06:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:06:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:06:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-19 04:06:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:06:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 04:06:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-19 04:06:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:06:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:06:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-19 04:06:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:06:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:06:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-19 04:06:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:06:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:29,606 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-08-19 04:06:29,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379435577] [2020-08-19 04:06:29,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:06:29,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-19 04:06:29,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237769423] [2020-08-19 04:06:29,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 04:06:29,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:06:29,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 04:06:29,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-08-19 04:06:29,614 INFO L87 Difference]: Start difference. First operand 545 states and 702 transitions. Second operand 11 states. [2020-08-19 04:06:29,782 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-19 04:06:30,992 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-08-19 04:06:31,168 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-19 04:06:31,358 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-19 04:06:31,556 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-19 04:06:31,737 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-19 04:06:33,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:06:33,578 INFO L93 Difference]: Finished difference Result 1168 states and 1528 transitions. [2020-08-19 04:06:33,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-19 04:06:33,579 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 164 [2020-08-19 04:06:33,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:06:33,583 INFO L225 Difference]: With dead ends: 1168 [2020-08-19 04:06:33,583 INFO L226 Difference]: Without dead ends: 648 [2020-08-19 04:06:33,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2020-08-19 04:06:33,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2020-08-19 04:06:33,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 550. [2020-08-19 04:06:33,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-08-19 04:06:33,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 707 transitions. [2020-08-19 04:06:33,641 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 707 transitions. Word has length 164 [2020-08-19 04:06:33,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:06:33,641 INFO L479 AbstractCegarLoop]: Abstraction has 550 states and 707 transitions. [2020-08-19 04:06:33,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 04:06:33,642 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 707 transitions. [2020-08-19 04:06:33,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-08-19 04:06:33,644 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:06:33,645 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 04:06:33,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 04:06:33,645 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:06:33,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:06:33,646 INFO L82 PathProgramCache]: Analyzing trace with hash 925896005, now seen corresponding path program 1 times [2020-08-19 04:06:33,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:06:33,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [387591082] [2020-08-19 04:06:33,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:06:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:33,990 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 04:06:33,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:06:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:06:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:06:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-19 04:06:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:06:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 04:06:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:06:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:06:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-19 04:06:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-19 04:06:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-08-19 04:06:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:34,210 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-08-19 04:06:34,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [387591082] [2020-08-19 04:06:34,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:06:34,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-19 04:06:34,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620254649] [2020-08-19 04:06:34,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 04:06:34,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:06:34,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 04:06:34,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-19 04:06:34,213 INFO L87 Difference]: Start difference. First operand 550 states and 707 transitions. Second operand 10 states. [2020-08-19 04:06:34,371 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-19 04:06:34,963 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-08-19 04:06:35,712 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-19 04:06:36,384 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-19 04:06:36,569 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-08-19 04:06:37,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:06:37,575 INFO L93 Difference]: Finished difference Result 1271 states and 1638 transitions. [2020-08-19 04:06:37,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 04:06:37,575 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 152 [2020-08-19 04:06:37,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:06:37,580 INFO L225 Difference]: With dead ends: 1271 [2020-08-19 04:06:37,580 INFO L226 Difference]: Without dead ends: 746 [2020-08-19 04:06:37,582 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-08-19 04:06:37,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2020-08-19 04:06:37,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 430. [2020-08-19 04:06:37,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-08-19 04:06:37,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 531 transitions. [2020-08-19 04:06:37,625 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 531 transitions. Word has length 152 [2020-08-19 04:06:37,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:06:37,625 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 531 transitions. [2020-08-19 04:06:37,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 04:06:37,626 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 531 transitions. [2020-08-19 04:06:37,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-08-19 04:06:37,627 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:06:37,627 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 04:06:37,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 04:06:37,628 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:06:37,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:06:37,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1391356121, now seen corresponding path program 1 times [2020-08-19 04:06:37,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:06:37,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808552859] [2020-08-19 04:06:37,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:06:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,865 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 04:06:37,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:06:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:06:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:06:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-19 04:06:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-19 04:06:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:06:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-08-19 04:06:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-19 04:06:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-19 04:06:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-19 04:06:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 04:06:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-19 04:06:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-19 04:06:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-19 04:06:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-19 04:06:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-19 04:06:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 04:06:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-19 04:06:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:37,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:38,034 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 04:06:38,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808552859] [2020-08-19 04:06:38,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 04:06:38,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-19 04:06:38,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813616922] [2020-08-19 04:06:38,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 04:06:38,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:06:38,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 04:06:38,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-08-19 04:06:38,038 INFO L87 Difference]: Start difference. First operand 430 states and 531 transitions. Second operand 8 states. [2020-08-19 04:06:38,203 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-08-19 04:06:41,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:06:41,309 INFO L93 Difference]: Finished difference Result 980 states and 1265 transitions. [2020-08-19 04:06:41,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 04:06:41,310 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 151 [2020-08-19 04:06:41,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:06:41,313 INFO L225 Difference]: With dead ends: 980 [2020-08-19 04:06:41,313 INFO L226 Difference]: Without dead ends: 592 [2020-08-19 04:06:41,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:06:41,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2020-08-19 04:06:41,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 453. [2020-08-19 04:06:41,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2020-08-19 04:06:41,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 568 transitions. [2020-08-19 04:06:41,360 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 568 transitions. Word has length 151 [2020-08-19 04:06:41,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:06:41,361 INFO L479 AbstractCegarLoop]: Abstraction has 453 states and 568 transitions. [2020-08-19 04:06:41,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 04:06:41,361 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 568 transitions. [2020-08-19 04:06:41,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-08-19 04:06:41,363 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:06:41,363 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 04:06:41,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 04:06:41,363 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:06:41,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:06:41,364 INFO L82 PathProgramCache]: Analyzing trace with hash -642852378, now seen corresponding path program 2 times [2020-08-19 04:06:41,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:06:41,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347622099] [2020-08-19 04:06:41,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:06:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,612 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 04:06:41,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:06:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 04:06:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 04:06:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:06:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-19 04:06:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 04:06:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 04:06:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:06:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:06:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-19 04:06:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:06:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:06:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-08-19 04:06:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 04:06:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 04:06:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-19 04:06:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 04:06:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:06:41,867 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 04:06:41,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347622099] [2020-08-19 04:06:41,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:06:41,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 04:06:41,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693711557] [2020-08-19 04:06:41,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 04:06:41,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:06:41,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 04:06:41,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-19 04:06:41,870 INFO L87 Difference]: Start difference. First operand 453 states and 568 transitions. Second operand 7 states. [2020-08-19 04:06:42,050 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-08-19 04:06:42,328 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-08-19 04:06:42,493 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-08-19 04:06:44,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:06:44,467 INFO L93 Difference]: Finished difference Result 553 states and 710 transitions. [2020-08-19 04:06:44,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 04:06:44,467 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2020-08-19 04:06:44,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:06:44,468 INFO L225 Difference]: With dead ends: 553 [2020-08-19 04:06:44,468 INFO L226 Difference]: Without dead ends: 0 [2020-08-19 04:06:44,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-08-19 04:06:44,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-19 04:06:44,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-19 04:06:44,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-19 04:06:44,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-19 04:06:44,473 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 164 [2020-08-19 04:06:44,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:06:44,473 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-19 04:06:44,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 04:06:44,473 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-19 04:06:44,473 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-19 04:06:44,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-19 04:06:44,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.