/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:40:29,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:40:29,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:40:29,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:40:29,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:40:29,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:40:29,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:40:29,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:40:29,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:40:29,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:40:29,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:40:29,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:40:29,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:40:29,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:40:29,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:40:29,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:40:29,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:40:29,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:40:29,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:40:29,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:40:29,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:40:29,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:40:29,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:40:29,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:40:29,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:40:29,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:40:29,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:40:29,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:40:29,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:40:29,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:40:29,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:40:29,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:40:29,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:40:29,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:40:29,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:40:29,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:40:29,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:40:29,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:40:29,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:40:29,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:40:29,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:40:29,738 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 [2020-09-24 16:40:29,771 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:40:29,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:40:29,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:40:29,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:40:29,773 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:40:29,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:40:29,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:40:29,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:40:29,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:40:29,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:40:29,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:40:29,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:40:29,774 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:40:29,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:40:29,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:40:29,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:40:29,775 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:40:29,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:40:29,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:40:29,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:40:29,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:40:29,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:40:29,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:40:29,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:40:29,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:40:29,777 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:40:29,777 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 16:40:29,778 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.rcfgbuilder: Size of a code block -> SingleStatement 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 -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:40:30,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:40:30,302 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:40:30,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:40:30,310 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:40:30,311 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:40:30,312 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-24 16:40:30,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7caedbacf/022170b79322419484f61555d6e0eb48/FLAGfad8df5a7 [2020-09-24 16:40:31,289 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:40:31,290 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-24 16:40:31,321 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7caedbacf/022170b79322419484f61555d6e0eb48/FLAGfad8df5a7 [2020-09-24 16:40:31,791 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7caedbacf/022170b79322419484f61555d6e0eb48 [2020-09-24 16:40:31,806 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:40:31,812 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:40:31,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:40:31,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:40:31,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:40:31,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:40:31" (1/1) ... [2020-09-24 16:40:31,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@752aa8e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:40:31, skipping insertion in model container [2020-09-24 16:40:31,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:40:31" (1/1) ... [2020-09-24 16:40:31,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:40:31,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:40:33,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:40:33,540 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:40:33,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:40:33,947 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:40:33,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:40:33 WrapperNode [2020-09-24 16:40:33,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:40:33,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:40:33,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:40:33,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:40:33,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:40:33" (1/1) ... [2020-09-24 16:40:33,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:40:33" (1/1) ... [2020-09-24 16:40:34,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:40:33" (1/1) ... [2020-09-24 16:40:34,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:40:33" (1/1) ... [2020-09-24 16:40:34,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:40:33" (1/1) ... [2020-09-24 16:40:34,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:40:33" (1/1) ... [2020-09-24 16:40:34,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:40:33" (1/1) ... [2020-09-24 16:40:34,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:40:34,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:40:34,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:40:34,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:40:34,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:40:33" (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 [2020-09-24 16:40:34,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:40:34,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:40:34,252 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2020-09-24 16:40:34,252 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2020-09-24 16:40:34,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2020-09-24 16:40:34,253 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2020-09-24 16:40:34,253 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2020-09-24 16:40:34,253 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-24 16:40:34,254 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-24 16:40:34,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-24 16:40:34,254 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-24 16:40:34,254 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-24 16:40:34,254 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 16:40:34,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 16:40:34,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 16:40:34,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-09-24 16:40:34,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-09-24 16:40:34,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 16:40:34,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 16:40:34,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 16:40:34,256 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-09-24 16:40:34,256 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-24 16:40:34,257 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2020-09-24 16:40:34,257 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2020-09-24 16:40:34,257 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2020-09-24 16:40:34,257 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2020-09-24 16:40:34,257 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2020-09-24 16:40:34,258 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2020-09-24 16:40:34,258 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2020-09-24 16:40:34,258 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2020-09-24 16:40:34,258 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2020-09-24 16:40:34,258 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2020-09-24 16:40:34,259 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2020-09-24 16:40:34,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-09-24 16:40:34,259 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-09-24 16:40:34,259 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-09-24 16:40:34,259 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-09-24 16:40:34,260 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-09-24 16:40:34,260 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:40:34,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_5 [2020-09-24 16:40:34,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_6 [2020-09-24 16:40:34,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_7 [2020-09-24 16:40:34,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 16:40:34,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-24 16:40:34,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-24 16:40:34,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-24 16:40:34,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-24 16:40:34,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2020-09-24 16:40:34,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2020-09-24 16:40:34,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2020-09-24 16:40:34,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2020-09-24 16:40:34,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2020-09-24 16:40:34,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 16:40:34,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-09-24 16:40:34,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-09-24 16:40:34,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-09-24 16:40:34,263 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2020-09-24 16:40:34,263 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2020-09-24 16:40:34,264 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-09-24 16:40:34,264 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-09-24 16:40:34,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2020-09-24 16:40:34,264 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2020-09-24 16:40:34,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 16:40:34,265 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-24 16:40:34,265 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2020-09-24 16:40:34,265 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2020-09-24 16:40:34,265 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-09-24 16:40:34,265 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-09-24 16:40:34,265 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-09-24 16:40:34,266 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 16:40:34,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 16:40:34,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 16:40:34,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-24 16:40:34,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:40:34,267 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-24 16:40:34,267 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-24 16:40:34,267 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 16:40:34,267 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-09-24 16:40:34,267 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-09-24 16:40:34,270 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2020-09-24 16:40:34,270 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2020-09-24 16:40:34,271 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2020-09-24 16:40:34,272 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2020-09-24 16:40:34,272 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2020-09-24 16:40:34,273 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2020-09-24 16:40:34,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-24 16:40:34,273 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2020-09-24 16:40:34,273 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-24 16:40:34,273 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-24 16:40:34,273 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 16:40:34,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 16:40:34,274 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-24 16:40:34,274 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-24 16:40:34,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 16:40:34,275 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-24 16:40:34,275 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:40:34,275 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 16:40:34,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:40:34,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 16:40:34,276 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 16:40:34,276 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 16:40:34,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:40:34,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 16:40:34,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-09-24 16:40:34,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-09-24 16:40:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 16:40:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 16:40:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 16:40:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 16:40:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-09-24 16:40:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-09-24 16:40:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-09-24 16:40:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-09-24 16:40:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-09-24 16:40:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-09-24 16:40:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-09-24 16:40:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_5 [2020-09-24 16:40:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-09-24 16:40:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_6 [2020-09-24 16:40:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_7 [2020-09-24 16:40:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2020-09-24 16:40:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2020-09-24 16:40:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-09-24 16:40:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-24 16:40:34,281 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-09-24 16:40:34,281 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-09-24 16:40:34,282 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-09-24 16:40:34,285 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2020-09-24 16:40:34,285 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2020-09-24 16:40:34,285 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2020-09-24 16:40:34,286 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2020-09-24 16:40:34,290 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2020-09-24 16:40:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2020-09-24 16:40:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2020-09-24 16:40:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2020-09-24 16:40:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2020-09-24 16:40:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2020-09-24 16:40:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:40:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:40:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:40:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:40:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:40:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:40:34,294 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2020-09-24 16:40:34,294 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2020-09-24 16:40:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2020-09-24 16:40:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 16:40:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 16:40:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:40:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 16:40:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-24 16:40:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-24 16:40:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-24 16:40:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-24 16:40:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2020-09-24 16:40:34,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2020-09-24 16:40:34,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2020-09-24 16:40:34,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2020-09-24 16:40:34,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2020-09-24 16:40:34,302 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:40:34,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:40:34,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:40:34,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:40:34,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-24 16:40:34,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-24 16:40:34,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-24 16:40:34,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-24 16:40:35,128 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 16:40:35,134 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2020-09-24 16:40:36,703 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:40:36,703 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 16:40:36,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:40:36 BoogieIcfgContainer [2020-09-24 16:40:36,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:40:36,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:40:36,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:40:36,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:40:36,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:40:31" (1/3) ... [2020-09-24 16:40:36,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526695cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:40:36, skipping insertion in model container [2020-09-24 16:40:36,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:40:33" (2/3) ... [2020-09-24 16:40:36,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526695cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:40:36, skipping insertion in model container [2020-09-24 16:40:36,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:40:36" (3/3) ... [2020-09-24 16:40:36,733 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-24 16:40:36,745 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:40:36,758 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:40:36,780 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:40:36,818 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:40:36,818 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:40:36,819 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:40:36,819 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:40:36,819 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:40:36,819 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:40:36,819 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:40:36,819 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:40:36,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-09-24 16:40:36,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-09-24 16:40:36,883 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:40:36,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:40:36,886 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:40:36,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:40:36,894 INFO L82 PathProgramCache]: Analyzing trace with hash 462327911, now seen corresponding path program 1 times [2020-09-24 16:40:36,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:40:36,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258350739] [2020-09-24 16:40:36,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:40:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:37,711 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:37,712 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:37,712 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:37,712 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:37,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-09-24 16:40:37,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:37,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 16:40:37,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 278 [2020-09-24 16:40:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:40:37,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:39,617 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 514 [2020-09-24 16:40:39,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:40:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:39,655 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:39,655 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:39,656 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:39,691 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:39,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 16:40:39,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:39,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 16:40:39,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:39,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:39,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:39,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:39,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:40,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-09-24 16:40:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:40,086 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:40,086 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:40,087 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:40,087 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:40,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:40:40,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:40,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:40:40,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:40,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:40,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:40:40,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:40,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:40:40,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2020-09-24 16:40:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:40,128 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:40,129 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:40,130 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:40,130 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:40,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 16:40:40,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:40,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:40:40,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:40,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:40:40,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:40:40,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:40:40,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:40:40,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:40:40,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258350739] [2020-09-24 16:40:40,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:40:40,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 16:40:40,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353809385] [2020-09-24 16:40:40,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:40:40,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:40:40,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:40:40,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:40:40,358 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 5 states. [2020-09-24 16:40:43,721 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 516 [2020-09-24 16:40:57,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:40:57,858 INFO L93 Difference]: Finished difference Result 3046 states and 3696 transitions. [2020-09-24 16:40:57,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 16:40:57,865 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 298 [2020-09-24 16:40:57,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:40:57,906 INFO L225 Difference]: With dead ends: 3046 [2020-09-24 16:40:57,907 INFO L226 Difference]: Without dead ends: 1945 [2020-09-24 16:40:57,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:40:57,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2020-09-24 16:40:58,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1458. [2020-09-24 16:40:58,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1458 states. [2020-09-24 16:40:58,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1682 transitions. [2020-09-24 16:40:58,226 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1682 transitions. Word has length 298 [2020-09-24 16:40:58,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:40:58,228 INFO L479 AbstractCegarLoop]: Abstraction has 1458 states and 1682 transitions. [2020-09-24 16:40:58,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:40:58,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1682 transitions. [2020-09-24 16:40:58,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2020-09-24 16:40:58,236 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:40:58,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:40:58,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:40:58,242 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:40:58,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:40:58,243 INFO L82 PathProgramCache]: Analyzing trace with hash -95169640, now seen corresponding path program 1 times [2020-09-24 16:40:58,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:40:58,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178178137] [2020-09-24 16:40:58,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:40:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:40:58,450 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:40:58,450 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:40:58,451 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:40:58,451 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:40:58,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-09-24 16:40:58,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:40:58,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:40:58,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:40:58,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:40:58,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-09-24 16:40:58,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 16:40:58,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:41:00,558 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification that was a NOOP. DAG size: 514 [2020-09-24 16:41:00,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:41:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:41:00,696 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:41:00,696 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:41:00,696 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:41:00,696 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:41:00,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 16:41:00,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:41:00,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:41:00,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:41:00,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:41:00,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:41:00,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-09-24 16:41:00,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:41:00,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-09-24 16:41:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:41:00,990 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:41:00,991 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:41:00,991 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:41:00,991 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:41:00,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:41:00,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:41:00,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:41:00,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:41:00,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:41:00,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:41:00,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:41:00,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:41:01,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2020-09-24 16:41:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:41:01,121 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:41:01,122 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:41:01,122 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:41:01,122 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:41:01,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 16:41:01,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:41:01,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:41:01,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:41:01,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:41:01,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-24 16:41:01,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 16:41:01,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:41:01,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:41:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:41:01,270 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:41:01,271 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:41:01,271 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:41:01,271 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:41:01,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 16:41:01,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:41:01,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:41:01,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:41:01,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:41:01,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-24 16:41:01,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 16:41:01,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:41:01,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:41:01,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178178137] [2020-09-24 16:41:01,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:41:01,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 16:41:01,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207084961] [2020-09-24 16:41:01,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:41:01,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:41:01,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:41:01,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:41:01,572 INFO L87 Difference]: Start difference. First operand 1458 states and 1682 transitions. Second operand 7 states. [2020-09-24 16:41:03,105 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 517 [2020-09-24 16:41:06,629 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 519 [2020-09-24 16:41:20,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:41:20,527 INFO L93 Difference]: Finished difference Result 2836 states and 3354 transitions. [2020-09-24 16:41:20,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 16:41:20,528 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 365 [2020-09-24 16:41:20,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:41:20,539 INFO L225 Difference]: With dead ends: 2836 [2020-09-24 16:41:20,539 INFO L226 Difference]: Without dead ends: 1648 [2020-09-24 16:41:20,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-24 16:41:20,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2020-09-24 16:41:20,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1454. [2020-09-24 16:41:20,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1454 states. [2020-09-24 16:41:20,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 1677 transitions. [2020-09-24 16:41:20,712 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 1677 transitions. Word has length 365 [2020-09-24 16:41:20,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:41:20,713 INFO L479 AbstractCegarLoop]: Abstraction has 1454 states and 1677 transitions. [2020-09-24 16:41:20,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 16:41:20,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 1677 transitions. [2020-09-24 16:41:20,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2020-09-24 16:41:20,721 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:41:20,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:41:20,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:41:20,723 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:41:20,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:41:20,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1711376016, now seen corresponding path program 1 times [2020-09-24 16:41:20,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:41:20,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934103061] [2020-09-24 16:41:20,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:41:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:41:21,029 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:41:21,030 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:41:21,030 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:41:21,030 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:41:21,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 431 [2020-09-24 16:41:21,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:41:21,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:41:21,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:41:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:41:21,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 263 [2020-09-24 16:41:21,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-09-24 16:41:21,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:41:22,715 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 514 [2020-09-24 16:41:22,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:41:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:41:22,835 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:41:22,835 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:41:22,835 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:41:22,835 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:41:22,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 16:41:22,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:41:22,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:41:22,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:41:22,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:41:22,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:41:22,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 259 [2020-09-24 16:41:22,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:41:23,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-09-24 16:41:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:41:23,073 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:41:23,073 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:41:23,074 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:41:23,074 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:41:23,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:41:23,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:41:23,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:41:23,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:41:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:41:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:41:23,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:41:23,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:41:23,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2020-09-24 16:41:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:41:23,178 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:41:23,178 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:41:23,178 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:41:23,178 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:41:23,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-24 16:41:23,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:41:23,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:41:23,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:41:23,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:41:23,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:41:23,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-24 16:41:23,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:41:23,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:41:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:41:23,277 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:41:23,277 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:41:23,278 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:41:23,278 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:41:23,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-24 16:41:23,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:41:23,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:41:23,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:41:23,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:41:23,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:41:23,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:41:23,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:41:23,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-24 16:41:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:41:23,338 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:41:23,338 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:41:23,338 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:41:23,338 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:41:23,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 16:41:23,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:41:23,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:41:23,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:41:23,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:41:23,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:41:23,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:41:23,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:41:23,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:41:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:41:23,367 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:41:23,368 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:41:23,368 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:41:23,368 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:41:23,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 16:41:23,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:41:23,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:41:23,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:41:23,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:41:23,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:41:23,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:41:23,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:41:23,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:41:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:41:23,395 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:41:23,396 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:41:23,396 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:41:23,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:41:23,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 16:41:23,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:41:23,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:41:23,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:41:23,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:41:23,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:41:23,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:41:23,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:41:23,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:41:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:41:23,421 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:41:23,421 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:41:23,421 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:41:23,421 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:41:23,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 16:41:23,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:41:23,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:41:23,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:41:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:41:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:41:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:41:23,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:41:23,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:41:23,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934103061] [2020-09-24 16:41:23,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:41:23,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 16:41:23,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885440646] [2020-09-24 16:41:23,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:41:23,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:41:23,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:41:23,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:41:23,917 INFO L87 Difference]: Start difference. First operand 1454 states and 1677 transitions. Second operand 7 states. [2020-09-24 16:41:25,448 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 517