/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 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 17:51:48,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:51:48,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:51:48,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:51:48,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:51:48,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:51:48,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:51:48,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:51:48,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:51:48,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:51:48,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:51:48,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:51:48,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:51:48,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:51:48,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:51:48,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:51:48,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:51:48,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:51:48,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:51:48,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:51:48,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:51:48,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:51:48,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:51:48,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:51:48,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:51:48,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:51:48,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:51:48,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:51:48,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:51:48,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:51:48,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:51:48,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:51:48,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:51:48,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:51:48,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:51:48,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:51:48,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:51:48,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:51:48,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:51:48,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:51:48,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:51:48,804 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 17:51:48,833 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:51:48,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:51:48,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:51:48,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:51:48,835 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:51:48,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:51:48,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:51:48,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:51:48,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:51:48,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:51:48,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:51:48,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:51:48,837 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:51:48,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:51:48,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:51:48,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:51:48,838 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:51:48,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:51:48,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:51:48,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:51:48,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:51:48,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:51:48,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:51:48,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:51:48,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:51:48,839 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:51:48,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 17:51:48,840 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;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;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;log-additional-information=true; [2020-09-24 17:51:49,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:51:49,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:51:49,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:51:49,368 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:51:49,370 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:51:49,372 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-24 17:51:49,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f066967c/e9ab2ab5a1744cad8af9718c5dcd61b5/FLAG7f7cd595d [2020-09-24 17:51:50,308 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:51:50,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-24 17:51:50,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f066967c/e9ab2ab5a1744cad8af9718c5dcd61b5/FLAG7f7cd595d [2020-09-24 17:51:50,785 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f066967c/e9ab2ab5a1744cad8af9718c5dcd61b5 [2020-09-24 17:51:50,799 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:51:50,805 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:51:50,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:51:50,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:51:50,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:51:50,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:51:50" (1/1) ... [2020-09-24 17:51:50,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eac9df0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:50, skipping insertion in model container [2020-09-24 17:51:50,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:51:50" (1/1) ... [2020-09-24 17:51:50,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:51:50,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:51:52,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:51:52,345 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:51:52,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:51:52,859 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:51:52,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:52 WrapperNode [2020-09-24 17:51:52,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:51:52,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:51:52,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:51:52,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:51:52,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:52" (1/1) ... [2020-09-24 17:51:52,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:52" (1/1) ... [2020-09-24 17:51:52,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:52" (1/1) ... [2020-09-24 17:51:52,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:52" (1/1) ... [2020-09-24 17:51:53,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:52" (1/1) ... [2020-09-24 17:51:53,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:52" (1/1) ... [2020-09-24 17:51:53,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:52" (1/1) ... [2020-09-24 17:51:53,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:51:53,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:51:53,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:51:53,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:51:53,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:52" (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 17:51:53,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:51:53,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:51:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2020-09-24 17:51:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2020-09-24 17:51:53,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2020-09-24 17:51:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2020-09-24 17:51:53,214 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2020-09-24 17:51:53,215 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-24 17:51:53,215 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-24 17:51:53,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-24 17:51:53,216 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-24 17:51:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-24 17:51:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 17:51:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 17:51:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 17:51:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-09-24 17:51:53,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-09-24 17:51:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 17:51:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 17:51:53,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 17:51:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-09-24 17:51:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-24 17:51:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2020-09-24 17:51:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2020-09-24 17:51:53,223 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2020-09-24 17:51:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2020-09-24 17:51:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2020-09-24 17:51:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2020-09-24 17:51:53,224 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2020-09-24 17:51:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2020-09-24 17:51:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2020-09-24 17:51:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2020-09-24 17:51:53,226 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2020-09-24 17:51:53,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-09-24 17:51:53,226 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-09-24 17:51:53,226 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-09-24 17:51:53,227 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-09-24 17:51:53,227 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-09-24 17:51:53,227 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:51:53,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_5 [2020-09-24 17:51:53,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_6 [2020-09-24 17:51:53,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_7 [2020-09-24 17:51:53,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 17:51:53,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-24 17:51:53,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-24 17:51:53,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-24 17:51:53,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-24 17:51:53,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2020-09-24 17:51:53,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2020-09-24 17:51:53,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2020-09-24 17:51:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2020-09-24 17:51:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2020-09-24 17:51:53,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 17:51:53,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-09-24 17:51:53,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-09-24 17:51:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-09-24 17:51:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2020-09-24 17:51:53,233 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2020-09-24 17:51:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-09-24 17:51:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-09-24 17:51:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2020-09-24 17:51:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2020-09-24 17:51:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 17:51:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-24 17:51:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2020-09-24 17:51:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2020-09-24 17:51:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-09-24 17:51:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-09-24 17:51:53,237 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-09-24 17:51:53,237 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 17:51:53,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 17:51:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 17:51:53,238 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-24 17:51:53,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:51:53,240 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-24 17:51:53,241 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-24 17:51:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 17:51:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-09-24 17:51:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-09-24 17:51:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2020-09-24 17:51:53,242 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2020-09-24 17:51:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2020-09-24 17:51:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2020-09-24 17:51:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2020-09-24 17:51:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2020-09-24 17:51:53,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-24 17:51:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2020-09-24 17:51:53,244 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-24 17:51:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-24 17:51:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 17:51:53,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 17:51:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-24 17:51:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-24 17:51:53,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 17:51:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-24 17:51:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:51:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 17:51:53,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:51:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 17:51:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 17:51:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 17:51:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:51:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 17:51:53,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-09-24 17:51:53,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-09-24 17:51:53,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 17:51:53,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 17:51:53,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 17:51:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 17:51:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-09-24 17:51:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-09-24 17:51:53,250 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-09-24 17:51:53,251 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-09-24 17:51:53,251 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-09-24 17:51:53,251 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-09-24 17:51:53,251 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-09-24 17:51:53,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_5 [2020-09-24 17:51:53,252 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-09-24 17:51:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_6 [2020-09-24 17:51:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_7 [2020-09-24 17:51:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2020-09-24 17:51:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2020-09-24 17:51:53,254 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-09-24 17:51:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-24 17:51:53,255 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-09-24 17:51:53,256 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-09-24 17:51:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-09-24 17:51:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2020-09-24 17:51:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2020-09-24 17:51:53,257 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2020-09-24 17:51:53,258 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2020-09-24 17:51:53,259 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2020-09-24 17:51:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2020-09-24 17:51:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2020-09-24 17:51:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2020-09-24 17:51:53,265 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2020-09-24 17:51:53,265 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2020-09-24 17:51:53,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:51:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:51:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:51:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:51:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:51:53,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:51:53,267 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2020-09-24 17:51:53,268 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2020-09-24 17:51:53,276 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2020-09-24 17:51:53,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 17:51:53,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 17:51:53,277 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:51:53,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 17:51:53,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-24 17:51:53,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-24 17:51:53,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-24 17:51:53,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-24 17:51:53,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2020-09-24 17:51:53,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2020-09-24 17:51:53,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2020-09-24 17:51:53,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2020-09-24 17:51:53,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2020-09-24 17:51:53,281 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:51:53,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:51:53,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:51:53,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:51:53,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-24 17:51:53,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-24 17:51:53,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-24 17:51:53,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-24 17:51:54,319 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 17:51:54,328 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2020-09-24 17:51:55,861 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:51:55,861 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 17:51:55,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:51:55 BoogieIcfgContainer [2020-09-24 17:51:55,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:51:55,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:51:55,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:51:55,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:51:55,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:51:50" (1/3) ... [2020-09-24 17:51:55,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ab91f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:51:55, skipping insertion in model container [2020-09-24 17:51:55,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:51:52" (2/3) ... [2020-09-24 17:51:55,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ab91f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:51:55, skipping insertion in model container [2020-09-24 17:51:55,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:51:55" (3/3) ... [2020-09-24 17:51:55,895 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 17:51:55,906 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:51:55,916 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:51:55,936 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:51:55,972 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:51:55,973 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:51:55,973 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:51:55,973 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:51:55,973 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:51:55,973 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:51:55,974 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:51:55,974 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:51:56,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-09-24 17:51:56,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-09-24 17:51:56,041 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:51:56,043 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 17:51:56,044 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:51:56,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:51:56,052 INFO L82 PathProgramCache]: Analyzing trace with hash 462327911, now seen corresponding path program 1 times [2020-09-24 17:51:56,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:51:56,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401687306] [2020-09-24 17:51:56,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:51:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:51:57,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:58,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:51:59,811 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:51:59,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-09-24 17:51:59,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:51:59,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2986 [2020-09-24 17:51:59,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:51:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:51:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 278 [2020-09-24 17:51:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 17:51:59,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:52:01,643 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 514 [2020-09-24 17:52:01,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:52:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:01,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:02,337 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:02,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 17:52:02,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:02,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 647 [2020-09-24 17:52:02,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:02,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:52:02,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:02,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:52:02,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:02,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-09-24 17:52:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:02,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:02,600 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:02,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:52:02,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:02,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 17:52:02,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:02,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:52:02,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:52:02,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:52:02,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:02,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2020-09-24 17:52:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:02,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:02,679 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:02,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 17:52:02,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:52:02,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 17:52:02,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:02,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:52:02,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 17:52:02,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:52:02,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:52:02,880 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 17:52:02,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401687306] [2020-09-24 17:52:02,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:52:02,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 17:52:02,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313910393] [2020-09-24 17:52:02,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:52:02,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:52:02,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:52:02,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:52:02,924 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 5 states. [2020-09-24 17:52:06,225 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 516 [2020-09-24 17:52:20,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:52:20,150 INFO L93 Difference]: Finished difference Result 3046 states and 3696 transitions. [2020-09-24 17:52:20,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:52:20,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 298 [2020-09-24 17:52:20,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:52:20,190 INFO L225 Difference]: With dead ends: 3046 [2020-09-24 17:52:20,190 INFO L226 Difference]: Without dead ends: 1945 [2020-09-24 17:52:20,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:52:20,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2020-09-24 17:52:20,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1458. [2020-09-24 17:52:20,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1458 states. [2020-09-24 17:52:20,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1682 transitions. [2020-09-24 17:52:20,530 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1682 transitions. Word has length 298 [2020-09-24 17:52:20,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:52:20,532 INFO L479 AbstractCegarLoop]: Abstraction has 1458 states and 1682 transitions. [2020-09-24 17:52:20,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:52:20,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1682 transitions. [2020-09-24 17:52:20,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2020-09-24 17:52:20,543 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:52:20,543 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 17:52:20,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:52:20,544 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:52:20,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:52:20,545 INFO L82 PathProgramCache]: Analyzing trace with hash -95169640, now seen corresponding path program 1 times [2020-09-24 17:52:20,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:52:20,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1020739784] [2020-09-24 17:52:20,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:52:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:52:20,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:21,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:22,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:22,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:23,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:52:38,240 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:52:38,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-09-24 17:52:38,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:52:38,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17468 [2020-09-24 17:52:38,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:52:38,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:52:38,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-09-24 17:52:38,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 17:52:38,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0