/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-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 [2020-09-25 01:40:55,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:40:55,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:40:55,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:40:55,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:40:55,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:40:55,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:40:55,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:40:55,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:40:55,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:40:55,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:40:55,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:40:55,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:40:55,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:40:55,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:40:55,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:40:55,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:40:55,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:40:55,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:40:56,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:40:56,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:40:56,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:40:56,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:40:56,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:40:56,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:40:56,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:40:56,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:40:56,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:40:56,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:40:56,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:40:56,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:40:56,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:40:56,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:40:56,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:40:56,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:40:56,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:40:56,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:40:56,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:40:56,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:40:56,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:40:56,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:40:56,037 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 01:40:56,094 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:40:56,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:40:56,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:40:56,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:40:56,097 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:40:56,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:40:56,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:40:56,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:40:56,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:40:56,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:40:56,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:40:56,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:40:56,100 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:40:56,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:40:56,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:40:56,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:40:56,102 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:40:56,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:40:56,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:40:56,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:40:56,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:40:56,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:40:56,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:40:56,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:40:56,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:40:56,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:40:56,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 01:40:56,104 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 01:40:56,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:40:56,626 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:40:56,631 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:40:56,633 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:40:56,633 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:40:56,635 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-25 01:40:56,737 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/639667f12/846c1ae973bf468a81bcd8213e28a3f7/FLAG4d562d253 [2020-09-25 01:40:57,699 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:40:57,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-25 01:40:57,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/639667f12/846c1ae973bf468a81bcd8213e28a3f7/FLAG4d562d253 [2020-09-25 01:40:58,151 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/639667f12/846c1ae973bf468a81bcd8213e28a3f7 [2020-09-25 01:40:58,163 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:40:58,170 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:40:58,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:40:58,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:40:58,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:40:58,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:40:58" (1/1) ... [2020-09-25 01:40:58,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d55f613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:40:58, skipping insertion in model container [2020-09-25 01:40:58,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:40:58" (1/1) ... [2020-09-25 01:40:58,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:40:58,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:40:59,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:40:59,882 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:41:00,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:41:00,331 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:41:00,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:00 WrapperNode [2020-09-25 01:41:00,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:41:00,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:41:00,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:41:00,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:41:00,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:00" (1/1) ... [2020-09-25 01:41:00,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:00" (1/1) ... [2020-09-25 01:41:00,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:00" (1/1) ... [2020-09-25 01:41:00,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:00" (1/1) ... [2020-09-25 01:41:00,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:00" (1/1) ... [2020-09-25 01:41:00,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:00" (1/1) ... [2020-09-25 01:41:00,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:00" (1/1) ... [2020-09-25 01:41:00,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:41:00,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:41:00,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:41:00,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:41:00,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:00" (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 01:41:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:41:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:41:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2020-09-25 01:41:00,637 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2020-09-25 01:41:00,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2020-09-25 01:41:00,637 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2020-09-25 01:41:00,637 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2020-09-25 01:41:00,638 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-25 01:41:00,638 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-25 01:41:00,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-25 01:41:00,638 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-25 01:41:00,638 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-25 01:41:00,639 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 01:41:00,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 01:41:00,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 01:41:00,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-09-25 01:41:00,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-09-25 01:41:00,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 01:41:00,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 01:41:00,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 01:41:00,640 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-09-25 01:41:00,640 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-25 01:41:00,640 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2020-09-25 01:41:00,641 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2020-09-25 01:41:00,641 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2020-09-25 01:41:00,641 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2020-09-25 01:41:00,641 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2020-09-25 01:41:00,641 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2020-09-25 01:41:00,642 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2020-09-25 01:41:00,642 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2020-09-25 01:41:00,642 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2020-09-25 01:41:00,642 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2020-09-25 01:41:00,642 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2020-09-25 01:41:00,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-09-25 01:41:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-09-25 01:41:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-09-25 01:41:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-09-25 01:41:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-09-25 01:41:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:41:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_5 [2020-09-25 01:41:00,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_6 [2020-09-25 01:41:00,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_7 [2020-09-25 01:41:00,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 01:41:00,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-25 01:41:00,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-25 01:41:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-25 01:41:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-25 01:41:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2020-09-25 01:41:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2020-09-25 01:41:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2020-09-25 01:41:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2020-09-25 01:41:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2020-09-25 01:41:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 01:41:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-09-25 01:41:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-09-25 01:41:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-09-25 01:41:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2020-09-25 01:41:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2020-09-25 01:41:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-09-25 01:41:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-09-25 01:41:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2020-09-25 01:41:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2020-09-25 01:41:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 01:41:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-25 01:41:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2020-09-25 01:41:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2020-09-25 01:41:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-09-25 01:41:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-09-25 01:41:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-09-25 01:41:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 01:41:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-25 01:41:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 01:41:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-25 01:41:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:41:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-25 01:41:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-25 01:41:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-25 01:41:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-09-25 01:41:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-09-25 01:41:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2020-09-25 01:41:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2020-09-25 01:41:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2020-09-25 01:41:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2020-09-25 01:41:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2020-09-25 01:41:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2020-09-25 01:41:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-25 01:41:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2020-09-25 01:41:00,652 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-25 01:41:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-25 01:41:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 01:41:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 01:41:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-25 01:41:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-25 01:41:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 01:41:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-25 01:41:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:41:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 01:41:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:41:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 01:41:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 01:41:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 01:41:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:41:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 01:41:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-09-25 01:41:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-09-25 01:41:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-25 01:41:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 01:41:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 01:41:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 01:41:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-09-25 01:41:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-09-25 01:41:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-09-25 01:41:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-09-25 01:41:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-09-25 01:41:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-09-25 01:41:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-09-25 01:41:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_5 [2020-09-25 01:41:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-09-25 01:41:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_6 [2020-09-25 01:41:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_7 [2020-09-25 01:41:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2020-09-25 01:41:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2020-09-25 01:41:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-09-25 01:41:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-25 01:41:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-09-25 01:41:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-09-25 01:41:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-09-25 01:41:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2020-09-25 01:41:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2020-09-25 01:41:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2020-09-25 01:41:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2020-09-25 01:41:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2020-09-25 01:41:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2020-09-25 01:41:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2020-09-25 01:41:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2020-09-25 01:41:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2020-09-25 01:41:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2020-09-25 01:41:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:41:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:41:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:41:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:41:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:41:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:41:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2020-09-25 01:41:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2020-09-25 01:41:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2020-09-25 01:41:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 01:41:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 01:41:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:41:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 01:41:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-25 01:41:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-25 01:41:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-25 01:41:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-25 01:41:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2020-09-25 01:41:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2020-09-25 01:41:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2020-09-25 01:41:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2020-09-25 01:41:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2020-09-25 01:41:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:41:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:41:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:41:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:41:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-25 01:41:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-25 01:41:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-25 01:41:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-25 01:41:01,798 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 01:41:01,804 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2020-09-25 01:41:03,600 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:41:03,601 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 01:41:03,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:41:03 BoogieIcfgContainer [2020-09-25 01:41:03,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:41:03,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:41:03,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:41:03,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:41:03,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:40:58" (1/3) ... [2020-09-25 01:41:03,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b5e8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:41:03, skipping insertion in model container [2020-09-25 01:41:03,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:41:00" (2/3) ... [2020-09-25 01:41:03,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b5e8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:41:03, skipping insertion in model container [2020-09-25 01:41:03,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:41:03" (3/3) ... [2020-09-25 01:41:03,687 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-25 01:41:03,699 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:41:03,710 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:41:03,732 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:41:03,769 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:41:03,769 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:41:03,770 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:41:03,770 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:41:03,770 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:41:03,770 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:41:03,770 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:41:03,770 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:41:03,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-09-25 01:41:03,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-09-25 01:41:03,840 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:41:03,842 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] [2020-09-25 01:41:03,843 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:41:03,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:41:03,851 INFO L82 PathProgramCache]: Analyzing trace with hash 462327911, now seen corresponding path program 1 times [2020-09-25 01:41:03,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:41:03,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1132834953] [2020-09-25 01:41:03,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:41:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:41:05,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:41:06,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:41:07,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:41:07,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-09-25 01:41:07,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:41:07,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3370 [2020-09-25 01:41:07,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:41:07,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:41:07,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 278 [2020-09-25 01:41:07,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 01:41:07,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:41:10,126 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 514 [2020-09-25 01:41:10,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:41:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:41:10,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:41:10,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:41:10,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-25 01:41:10,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:41:10,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 596 [2020-09-25 01:41:10,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:41:10,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:41:10,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:41:10,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:41:10,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:41:11,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-09-25 01:41:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:41:11,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:41:11,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:41:11,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:41:11,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:41:11,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 01:41:11,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:41:11,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:41:11,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:41:11,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:41:11,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:41:11,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2020-09-25 01:41:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:41:11,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:41:11,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:41:11,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:41:11,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:41:11,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 01:41:11,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:41:11,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:41:11,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 01:41:11,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:41:11,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:41:11,390 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 01:41:11,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1132834953] [2020-09-25 01:41:11,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:41:11,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:41:11,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724875788] [2020-09-25 01:41:11,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:41:11,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:41:11,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:41:11,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:41:11,435 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 5 states. [2020-09-25 01:41:14,763 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 516 [2020-09-25 01:41:28,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:41:28,205 INFO L93 Difference]: Finished difference Result 3046 states and 3696 transitions. [2020-09-25 01:41:28,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:41:28,208 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 298 [2020-09-25 01:41:28,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:41:28,262 INFO L225 Difference]: With dead ends: 3046 [2020-09-25 01:41:28,262 INFO L226 Difference]: Without dead ends: 1945 [2020-09-25 01:41:28,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:41:28,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2020-09-25 01:41:28,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1458. [2020-09-25 01:41:28,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1458 states. [2020-09-25 01:41:28,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1682 transitions. [2020-09-25 01:41:28,594 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1682 transitions. Word has length 298 [2020-09-25 01:41:28,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:41:28,600 INFO L479 AbstractCegarLoop]: Abstraction has 1458 states and 1682 transitions. [2020-09-25 01:41:28,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:41:28,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1682 transitions. [2020-09-25 01:41:28,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2020-09-25 01:41:28,619 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:41:28,620 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] [2020-09-25 01:41:28,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:41:28,620 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:41:28,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:41:28,621 INFO L82 PathProgramCache]: Analyzing trace with hash -95169640, now seen corresponding path program 1 times [2020-09-25 01:41:28,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:41:28,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1767399314] [2020-09-25 01:41:28,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:41:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:41:29,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:41:29,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:41:30,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:41:31,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:41:31,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:41:33,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:41:33,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-09-25 01:41:33,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:41:33,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 01:41:33,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:41:33,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:41:33,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-09-25 01:41:33,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:41:33,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:41:35,417 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 514 [2020-09-25 01:41:35,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:41:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:41:35,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:41:35,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:41:35,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-25 01:41:35,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:41:35,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 511 [2020-09-25 01:41:35,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:41:35,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:41:35,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:41:35,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:41:35,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:41:36,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-09-25 01:41:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:41:36,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:41:36,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:41:36,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:41:36,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:41:36,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 01:41:36,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:41:36,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:41:36,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:41:36,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:41:36,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:41:36,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2020-09-25 01:41:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:41:36,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:41:36,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:41:36,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:41:36,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 01:41:36,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:41:36,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-09-25 01:41:36,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:41:36,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:41:36,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-09-25 01:41:36,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:41:36,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:41:36,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:41:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:41:36,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:41:36,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:41:37,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:41:37,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 01:41:37,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:41:37,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-09-25 01:41:37,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:41:37,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:41:37,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 01:41:37,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:41:37,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:41:37,480 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 01:41:37,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1767399314] [2020-09-25 01:41:37,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:41:37,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:41:37,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580740469] [2020-09-25 01:41:37,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:41:37,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:41:37,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:41:37,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:41:37,489 INFO L87 Difference]: Start difference. First operand 1458 states and 1682 transitions. Second operand 6 states. [2020-09-25 01:41:38,950 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 517