/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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 18:59:58,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:59:58,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:59:58,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:59:58,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:59:58,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:59:58,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:59:58,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:59:58,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:59:58,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:59:58,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:59:58,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:59:58,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:59:58,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:59:58,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:59:58,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:59:58,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:59:58,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:59:58,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:59:58,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:59:58,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:59:58,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:59:58,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:59:58,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:59:58,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:59:58,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:59:58,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:59:58,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:59:58,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:59:58,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:59:58,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:59:58,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:59:58,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:59:58,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:59:58,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:59:58,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:59:58,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:59:58,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:59:58,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:59:58,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:59:58,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:59:58,926 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 18:59:58,955 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:59:58,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:59:58,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:59:58,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:59:58,957 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:59:58,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:59:58,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:59:58,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:59:58,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:59:58,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:59:58,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:59:58,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:59:58,958 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:59:58,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:59:58,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:59:58,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:59:58,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:59:58,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:59:58,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:59:58,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:59:58,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:59:58,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:59:58,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:59:58,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:59:58,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:59:58,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:59:58,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 18:59:58,962 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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;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;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:59:59,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:59:59,424 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:59:59,430 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:59:59,432 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:59:59,433 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:59:59,436 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-24 18:59:59,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/763e0321a/4aded6c3493f4575ab7df714a649feec/FLAG9fe21c4c8 [2020-09-24 19:00:00,429 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:00:00,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-24 19:00:00,467 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/763e0321a/4aded6c3493f4575ab7df714a649feec/FLAG9fe21c4c8 [2020-09-24 19:00:00,909 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/763e0321a/4aded6c3493f4575ab7df714a649feec [2020-09-24 19:00:00,925 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:00:00,934 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:00:00,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:00:00,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:00:00,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:00:00,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:00:00" (1/1) ... [2020-09-24 19:00:00,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51c61aad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:00:00, skipping insertion in model container [2020-09-24 19:00:00,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:00:00" (1/1) ... [2020-09-24 19:00:00,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:00:01,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:00:02,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:00:02,582 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:00:02,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:00:02,846 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:00:02,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:00:02 WrapperNode [2020-09-24 19:00:02,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:00:02,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:00:02,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:00:02,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:00:02,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:00:02" (1/1) ... [2020-09-24 19:00:02,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:00:02" (1/1) ... [2020-09-24 19:00:02,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:00:02" (1/1) ... [2020-09-24 19:00:02,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:00:02" (1/1) ... [2020-09-24 19:00:03,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:00:02" (1/1) ... [2020-09-24 19:00:03,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:00:02" (1/1) ... [2020-09-24 19:00:03,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:00:02" (1/1) ... [2020-09-24 19:00:03,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:00:03,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:00:03,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:00:03,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:00:03,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:00:02" (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 19:00:03,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:00:03,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:00:03,196 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2020-09-24 19:00:03,196 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2020-09-24 19:00:03,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2020-09-24 19:00:03,197 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2020-09-24 19:00:03,197 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2020-09-24 19:00:03,197 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-24 19:00:03,198 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-24 19:00:03,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-24 19:00:03,198 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-24 19:00:03,198 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-24 19:00:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 19:00:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 19:00:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 19:00:03,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-09-24 19:00:03,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-09-24 19:00:03,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 19:00:03,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 19:00:03,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 19:00:03,201 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-09-24 19:00:03,201 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-24 19:00:03,201 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2020-09-24 19:00:03,201 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2020-09-24 19:00:03,202 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2020-09-24 19:00:03,202 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2020-09-24 19:00:03,202 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2020-09-24 19:00:03,203 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2020-09-24 19:00:03,203 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2020-09-24 19:00:03,203 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2020-09-24 19:00:03,203 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2020-09-24 19:00:03,204 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2020-09-24 19:00:03,204 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2020-09-24 19:00:03,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-09-24 19:00:03,205 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-09-24 19:00:03,205 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-09-24 19:00:03,205 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-09-24 19:00:03,205 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-09-24 19:00:03,206 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:00:03,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_5 [2020-09-24 19:00:03,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_6 [2020-09-24 19:00:03,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_7 [2020-09-24 19:00:03,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 19:00:03,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-24 19:00:03,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-24 19:00:03,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-24 19:00:03,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-24 19:00:03,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2020-09-24 19:00:03,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2020-09-24 19:00:03,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2020-09-24 19:00:03,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2020-09-24 19:00:03,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2020-09-24 19:00:03,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 19:00:03,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-09-24 19:00:03,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-09-24 19:00:03,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-09-24 19:00:03,211 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2020-09-24 19:00:03,211 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2020-09-24 19:00:03,211 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-09-24 19:00:03,212 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-09-24 19:00:03,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2020-09-24 19:00:03,212 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2020-09-24 19:00:03,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 19:00:03,213 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-24 19:00:03,213 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2020-09-24 19:00:03,213 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2020-09-24 19:00:03,214 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-09-24 19:00:03,214 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-09-24 19:00:03,214 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-09-24 19:00:03,214 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 19:00:03,215 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 19:00:03,215 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 19:00:03,215 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-24 19:00:03,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:00:03,216 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-24 19:00:03,216 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-24 19:00:03,216 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 19:00:03,216 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-09-24 19:00:03,217 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-09-24 19:00:03,217 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2020-09-24 19:00:03,217 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2020-09-24 19:00:03,217 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2020-09-24 19:00:03,217 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2020-09-24 19:00:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2020-09-24 19:00:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2020-09-24 19:00:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-24 19:00:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2020-09-24 19:00:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-24 19:00:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-24 19:00:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 19:00:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 19:00:03,220 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-24 19:00:03,220 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-24 19:00:03,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 19:00:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-24 19:00:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:00:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 19:00:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:00:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 19:00:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 19:00:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 19:00:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:00:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 19:00:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-09-24 19:00:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-09-24 19:00:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 19:00:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 19:00:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 19:00:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 19:00:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-09-24 19:00:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-09-24 19:00:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-09-24 19:00:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-09-24 19:00:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-09-24 19:00:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-09-24 19:00:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-09-24 19:00:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_5 [2020-09-24 19:00:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-09-24 19:00:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_6 [2020-09-24 19:00:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_7 [2020-09-24 19:00:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2020-09-24 19:00:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2020-09-24 19:00:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-09-24 19:00:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-24 19:00:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-09-24 19:00:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-09-24 19:00:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-09-24 19:00:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2020-09-24 19:00:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2020-09-24 19:00:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2020-09-24 19:00:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2020-09-24 19:00:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2020-09-24 19:00:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2020-09-24 19:00:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2020-09-24 19:00:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2020-09-24 19:00:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2020-09-24 19:00:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2020-09-24 19:00:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:00:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:00:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:00:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:00:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:00:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:00:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2020-09-24 19:00:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2020-09-24 19:00:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2020-09-24 19:00:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 19:00:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 19:00:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:00:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 19:00:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-24 19:00:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-24 19:00:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-24 19:00:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-24 19:00:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2020-09-24 19:00:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2020-09-24 19:00:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2020-09-24 19:00:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2020-09-24 19:00:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2020-09-24 19:00:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:00:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:00:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:00:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:00:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-24 19:00:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-24 19:00:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-24 19:00:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-24 19:00:04,348 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 19:00:04,356 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2020-09-24 19:00:06,101 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:00:06,101 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 19:00:06,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:00:06 BoogieIcfgContainer [2020-09-24 19:00:06,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:00:06,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:00:06,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:00:06,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:00:06,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:00:00" (1/3) ... [2020-09-24 19:00:06,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e2cd07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:00:06, skipping insertion in model container [2020-09-24 19:00:06,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:00:02" (2/3) ... [2020-09-24 19:00:06,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e2cd07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:00:06, skipping insertion in model container [2020-09-24 19:00:06,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:00:06" (3/3) ... [2020-09-24 19:00:06,171 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 19:00:06,182 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:00:06,193 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:00:06,216 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:00:06,251 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:00:06,251 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:00:06,252 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:00:06,252 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:00:06,252 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:00:06,252 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:00:06,252 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:00:06,252 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:00:06,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-09-24 19:00:06,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-09-24 19:00:06,321 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:00:06,323 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 19:00:06,324 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:00:06,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:00:06,332 INFO L82 PathProgramCache]: Analyzing trace with hash 462327911, now seen corresponding path program 1 times [2020-09-24 19:00:06,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:00:06,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1249753258] [2020-09-24 19:00:06,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:00:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:00:07,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:00:08,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:00:09,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 19:00:09,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-09-24 19:00:09,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:00:09,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2708 [2020-09-24 19:00:09,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:00:09,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:00:09,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 278 [2020-09-24 19:00:09,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:00:09,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:00:11,808 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification that was a NOOP. DAG size: 514 [2020-09-24 19:00:11,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:00:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:00:11,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:00:12,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 19:00:12,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 19:00:12,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:00:12,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 577 [2020-09-24 19:00:12,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:00:12,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:00:12,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:00:12,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:00:12,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:00:12,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-09-24 19:00:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:00:12,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:00:12,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 19:00:12,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:00:12,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:00:12,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 19:00:12,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:00:12,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:00:12,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:00:12,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:00:12,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:00:12,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2020-09-24 19:00:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:00:12,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:00:12,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 19:00:12,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 19:00:12,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:00:12,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 19:00:12,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:00:12,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:00:12,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:00:12,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:00:12,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:00:13,028 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 19:00:13,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1249753258] [2020-09-24 19:00:13,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:00:13,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:00:13,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176884837] [2020-09-24 19:00:13,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:00:13,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:00:13,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:00:13,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:00:13,063 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 5 states. [2020-09-24 19:00:16,437 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification that was a NOOP. DAG size: 516 [2020-09-24 19:00:30,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:00:30,849 INFO L93 Difference]: Finished difference Result 3046 states and 3696 transitions. [2020-09-24 19:00:30,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:00:30,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 298 [2020-09-24 19:00:30,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:00:30,889 INFO L225 Difference]: With dead ends: 3046 [2020-09-24 19:00:30,889 INFO L226 Difference]: Without dead ends: 1945 [2020-09-24 19:00:30,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:00:30,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2020-09-24 19:00:31,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1458. [2020-09-24 19:00:31,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1458 states. [2020-09-24 19:00:31,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1682 transitions. [2020-09-24 19:00:31,199 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1682 transitions. Word has length 298 [2020-09-24 19:00:31,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:00:31,201 INFO L479 AbstractCegarLoop]: Abstraction has 1458 states and 1682 transitions. [2020-09-24 19:00:31,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:00:31,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1682 transitions. [2020-09-24 19:00:31,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2020-09-24 19:00:31,211 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:00:31,212 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 19:00:31,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:00:31,212 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:00:31,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:00:31,213 INFO L82 PathProgramCache]: Analyzing trace with hash -95169640, now seen corresponding path program 1 times [2020-09-24 19:00:31,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:00:31,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985172478] [2020-09-24 19:00:31,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:00:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:00:31,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:00:32,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:00:32,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:00:33,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:00:34,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:00:36,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 19:00:36,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-09-24 19:00:36,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:00:36,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-24 19:00:36,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:00:36,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:00:36,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-09-24 19:00:36,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:00:36,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:00:38,419 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification that was a NOOP. DAG size: 514 [2020-09-24 19:00:38,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:00:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:00:38,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:00:38,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 19:00:38,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 19:00:38,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:00:38,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 482 [2020-09-24 19:00:38,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:00:38,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:00:38,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:00:38,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:00:38,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:00:39,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-09-24 19:00:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:00:39,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:00:39,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 19:00:39,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:00:39,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:00:39,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:00:39,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:00:39,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:00:39,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:00:39,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:00:39,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:00:39,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2020-09-24 19:00:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:00:39,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:00:39,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:00:39,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 19:00:39,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 19:00:39,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:00:39,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-09-24 19:00:39,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:00:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:00:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-24 19:00:39,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:00:39,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:00:39,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:00:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:00:39,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:00:39,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:00:39,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 19:00:39,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 19:00:39,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:00:39,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-24 19:00:39,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:00:39,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:00:39,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-24 19:00:39,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:00:39,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:00:40,214 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 19:00:40,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985172478] [2020-09-24 19:00:40,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:00:40,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:00:40,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755750705] [2020-09-24 19:00:40,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:00:40,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:00:40,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:00:40,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:00:40,221 INFO L87 Difference]: Start difference. First operand 1458 states and 1682 transitions. Second operand 6 states. [2020-09-24 19:00:41,883 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 517