/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=DEEPEST --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-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:39:54,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:39:54,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:39:54,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:39:54,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:39:54,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:39:54,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:39:54,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:39:54,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:39:54,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:39:54,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:39:54,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:39:54,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:39:54,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:39:54,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:39:54,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:39:54,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:39:54,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:39:54,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:39:54,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:39:54,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:39:54,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:39:54,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:39:54,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:39:54,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:39:54,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:39:54,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:39:54,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:39:54,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:39:54,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:39:54,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:39:54,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:39:54,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:39:54,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:39:54,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:39:54,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:39:54,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:39:54,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:39:54,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:39:54,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:39:54,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:39:54,271 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 [2020-09-25 01:39:54,322 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:39:54,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:39:54,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:39:54,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:39:54,325 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:39:54,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:39:54,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:39:54,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:39:54,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:39:54,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:39:54,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:39:54,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:39:54,328 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:39:54,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:39:54,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:39:54,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:39:54,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:39:54,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:39:54,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:39:54,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:39:54,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:39:54,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:39:54,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:39:54,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:39:54,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:39:54,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:39:54,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 01:39:54,332 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 01:39:54,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:39:54,828 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:39:54,834 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:39:54,836 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:39:54,837 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:39:54,838 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-25 01:39:54,932 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e510e04c3/9579498343814e5485a4ebdcf1b896d9/FLAG82492fc59 [2020-09-25 01:39:55,762 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:39:55,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-25 01:39:55,800 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e510e04c3/9579498343814e5485a4ebdcf1b896d9/FLAG82492fc59 [2020-09-25 01:39:56,315 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e510e04c3/9579498343814e5485a4ebdcf1b896d9 [2020-09-25 01:39:56,329 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:39:56,336 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:39:56,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:39:56,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:39:56,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:39:56,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:39:56" (1/1) ... [2020-09-25 01:39:56,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25e3a308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:56, skipping insertion in model container [2020-09-25 01:39:56,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:39:56" (1/1) ... [2020-09-25 01:39:56,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:39:56,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:39:58,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:39:58,094 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:39:58,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:39:58,527 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:39:58,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:58 WrapperNode [2020-09-25 01:39:58,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:39:58,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:39:58,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:39:58,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:39:58,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:58" (1/1) ... [2020-09-25 01:39:58,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:58" (1/1) ... [2020-09-25 01:39:58,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:58" (1/1) ... [2020-09-25 01:39:58,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:58" (1/1) ... [2020-09-25 01:39:58,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:58" (1/1) ... [2020-09-25 01:39:58,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:58" (1/1) ... [2020-09-25 01:39:58,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:58" (1/1) ... [2020-09-25 01:39:58,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:39:58,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:39:58,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:39:58,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:39:58,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:39:58,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:39:58,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:39:58,869 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2020-09-25 01:39:58,870 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2020-09-25 01:39:58,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2020-09-25 01:39:58,870 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2020-09-25 01:39:58,872 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2020-09-25 01:39:58,872 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-25 01:39:58,873 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-25 01:39:58,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-25 01:39:58,876 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-25 01:39:58,876 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-25 01:39:58,876 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 01:39:58,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 01:39:58,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 01:39:58,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 01:39:58,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 01:39:58,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 01:39:58,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 01:39:58,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 01:39:58,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 01:39:58,885 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-09-25 01:39:58,885 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-25 01:39:58,885 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2020-09-25 01:39:58,886 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2020-09-25 01:39:58,887 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2020-09-25 01:39:58,887 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2020-09-25 01:39:58,887 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2020-09-25 01:39:58,887 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2020-09-25 01:39:58,888 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2020-09-25 01:39:58,888 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2020-09-25 01:39:58,888 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2020-09-25 01:39:58,888 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2020-09-25 01:39:58,888 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2020-09-25 01:39:58,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-09-25 01:39:58,889 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-09-25 01:39:58,889 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-09-25 01:39:58,889 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-09-25 01:39:58,889 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-09-25 01:39:58,889 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:39:58,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-25 01:39:58,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-25 01:39:58,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-25 01:39:58,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-25 01:39:58,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-25 01:39:58,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_12 [2020-09-25 01:39:58,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_13 [2020-09-25 01:39:58,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_14 [2020-09-25 01:39:58,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-25 01:39:58,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 01:39:58,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-25 01:39:58,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-25 01:39:58,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-25 01:39:58,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 01:39:58,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 01:39:58,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 01:39:58,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 01:39:58,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-25 01:39:58,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 01:39:58,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-25 01:39:58,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-25 01:39:58,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-25 01:39:58,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-25 01:39:58,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-25 01:39:58,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 01:39:58,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-09-25 01:39:58,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-09-25 01:39:58,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-09-25 01:39:58,897 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2020-09-25 01:39:58,897 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2020-09-25 01:39:58,897 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-09-25 01:39:58,898 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-09-25 01:39:58,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2020-09-25 01:39:58,900 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2020-09-25 01:39:58,901 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-25 01:39:58,901 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2020-09-25 01:39:58,902 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2020-09-25 01:39:58,902 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-09-25 01:39:58,902 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-09-25 01:39:58,902 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-09-25 01:39:58,903 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 01:39:58,903 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 01:39:58,904 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-25 01:39:58,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:39:58,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 01:39:58,905 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-25 01:39:58,906 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-09-25 01:39:58,906 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-09-25 01:39:58,906 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2020-09-25 01:39:58,906 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2020-09-25 01:39:58,906 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2020-09-25 01:39:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2020-09-25 01:39:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-25 01:39:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2020-09-25 01:39:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2020-09-25 01:39:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-25 01:39:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2020-09-25 01:39:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-25 01:39:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-25 01:39:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 01:39:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 01:39:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-25 01:39:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-25 01:39:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 01:39:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-25 01:39:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-25 01:39:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-25 01:39:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-25 01:39:58,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-25 01:39:58,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-25 01:39:58,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-25 01:39:58,911 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:39:58,911 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 01:39:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:39:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 01:39:58,912 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 01:39:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 01:39:58,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:39:58,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 01:39:58,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 01:39:58,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 01:39:58,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 01:39:58,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 01:39:58,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 01:39:58,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-09-25 01:39:58,917 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-09-25 01:39:58,917 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-09-25 01:39:58,918 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-09-25 01:39:58,918 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-09-25 01:39:58,919 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-09-25 01:39:58,924 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-09-25 01:39:58,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_12 [2020-09-25 01:39:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-09-25 01:39:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_13 [2020-09-25 01:39:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_14 [2020-09-25 01:39:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2020-09-25 01:39:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2020-09-25 01:39:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-09-25 01:39:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-25 01:39:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-09-25 01:39:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-09-25 01:39:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-09-25 01:39:58,927 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2020-09-25 01:39:58,928 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2020-09-25 01:39:58,929 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2020-09-25 01:39:58,937 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2020-09-25 01:39:58,937 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2020-09-25 01:39:58,937 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2020-09-25 01:39:58,937 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2020-09-25 01:39:58,937 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2020-09-25 01:39:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2020-09-25 01:39:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2020-09-25 01:39:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:39:58,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:39:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:39:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:39:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:39:58,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:39:58,941 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2020-09-25 01:39:58,941 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2020-09-25 01:39:58,941 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2020-09-25 01:39:58,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 01:39:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 01:39:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:39:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-25 01:39:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 01:39:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-25 01:39:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-25 01:39:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-25 01:39:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 01:39:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 01:39:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 01:39:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 01:39:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-25 01:39:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-25 01:39:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-25 01:39:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-25 01:39:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-25 01:39:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:39:58,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:39:58,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:39:58,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:39:58,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-25 01:39:58,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-25 01:39:58,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-25 01:39:58,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-25 01:39:59,902 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 01:40:01,858 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:40:01,859 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:40:01,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:40:01 BoogieIcfgContainer [2020-09-25 01:40:01,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:40:01,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:40:01,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:40:01,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:40:01,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:39:56" (1/3) ... [2020-09-25 01:40:01,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784c76f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:40:01, skipping insertion in model container [2020-09-25 01:40:01,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:58" (2/3) ... [2020-09-25 01:40:01,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784c76f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:40:01, skipping insertion in model container [2020-09-25 01:40:01,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:40:01" (3/3) ... [2020-09-25 01:40:01,885 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-25 01:40:01,897 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:40:01,909 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:40:01,928 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:40:01,962 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:40:01,963 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:40:01,963 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:40:01,963 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:40:01,963 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:40:01,963 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:40:01,963 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:40:01,964 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:40:02,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states. [2020-09-25 01:40:02,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-09-25 01:40:02,035 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:40:02,037 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] [2020-09-25 01:40:02,037 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:40:02,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:40:02,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1326592749, now seen corresponding path program 1 times [2020-09-25 01:40:02,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:40:02,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820032136] [2020-09-25 01:40:02,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:40:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:02,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:04,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:07,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:07,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-09-25 01:40:07,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:40:07,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 01:40:07,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:07,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:07,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 289 [2020-09-25 01:40:07,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 01:40:07,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:40:09,734 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification that was a NOOP. DAG size: 526 [2020-09-25 01:40:09,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:40:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:09,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:10,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:10,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-09-25 01:40:10,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:10,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 506 [2020-09-25 01:40:10,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:10,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:10,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:10,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:10,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:10,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2020-09-25 01:40:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:10,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:10,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:10,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 01:40:10,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:10,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 01:40:10,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:10,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:10,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:10,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:10,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:10,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:40:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:10,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:10,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:10,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:40:10,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:10,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 01:40:10,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:10,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:10,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:10,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:10,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:10,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2020-09-25 01:40:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:10,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:10,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:10,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:40:10,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:10,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 01:40:10,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:10,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:10,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 01:40:10,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:10,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:10,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-09-25 01:40:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:10,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:10,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:10,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:40:10,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:10,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 01:40:10,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:10,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:10,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 01:40:10,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:10,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:10,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:40:10,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820032136] [2020-09-25 01:40:10,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:40:10,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:40:10,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209229198] [2020-09-25 01:40:10,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:40:10,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:40:10,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:40:10,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:40:10,903 INFO L87 Difference]: Start difference. First operand 1502 states. Second operand 6 states. [2020-09-25 01:40:14,035 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 528 [2020-09-25 01:40:27,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:40:27,036 INFO L93 Difference]: Finished difference Result 3058 states and 3708 transitions. [2020-09-25 01:40:27,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 01:40:27,039 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 316 [2020-09-25 01:40:27,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:40:27,077 INFO L225 Difference]: With dead ends: 3058 [2020-09-25 01:40:27,077 INFO L226 Difference]: Without dead ends: 1953 [2020-09-25 01:40:27,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:40:27,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2020-09-25 01:40:27,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1466. [2020-09-25 01:40:27,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1466 states. [2020-09-25 01:40:27,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 1690 transitions. [2020-09-25 01:40:27,506 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 1690 transitions. Word has length 316 [2020-09-25 01:40:27,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:40:27,512 INFO L479 AbstractCegarLoop]: Abstraction has 1466 states and 1690 transitions. [2020-09-25 01:40:27,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:40:27,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 1690 transitions. [2020-09-25 01:40:27,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2020-09-25 01:40:27,528 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:40:27,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:40:27,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:40:27,530 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:40:27,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:40:27,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1550398358, now seen corresponding path program 1 times [2020-09-25 01:40:27,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:40:27,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440434918] [2020-09-25 01:40:27,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:40:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:27,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:28,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:29,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:31,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:32,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:32,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 404 [2020-09-25 01:40:32,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:40:32,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 01:40:32,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:32,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:32,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 367 [2020-09-25 01:40:32,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:40:32,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:34,788 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 526 [2020-09-25 01:40:34,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:40:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:34,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:35,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:35,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-09-25 01:40:35,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:35,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 489 [2020-09-25 01:40:35,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:35,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:35,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:35,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:35,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:35,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2020-09-25 01:40:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:35,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:35,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:35,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 01:40:35,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:35,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 01:40:35,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:35,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:35,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:35,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:35,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:35,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:40:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:35,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:35,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:35,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:40:35,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:35,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 01:40:35,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:35,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:35,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:40:35,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:35,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:40:35,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2020-09-25 01:40:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:35,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:35,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:35,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:35,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 01:40:35,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:40:35,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-09-25 01:40:35,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 01:40:35,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:40:35,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:36,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:40:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:36,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:36,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:36,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:36,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 01:40:36,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:40:36,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 01:40:36,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:36,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:40:36,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 01:40:36,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:40:36,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:36,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-09-25 01:40:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:40:36,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:40:36,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:40:36,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:40:36,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:40:36,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 01:40:36,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:40:36,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:40:36,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 01:40:36,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:40:36,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:40:36,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:40:36,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440434918] [2020-09-25 01:40:36,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:40:36,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 01:40:36,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528627689] [2020-09-25 01:40:36,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 01:40:36,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:40:36,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 01:40:36,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:40:36,626 INFO L87 Difference]: Start difference. First operand 1466 states and 1690 transitions. Second operand 7 states. [2020-09-25 01:40:38,054 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 529