/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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:12:36,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:12:36,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:12:36,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:12:36,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:12:36,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:12:36,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:12:36,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:12:36,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:12:36,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:12:36,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:12:36,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:12:36,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:12:36,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:12:36,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:12:36,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:12:36,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:12:36,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:12:36,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:12:36,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:12:36,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:12:36,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:12:36,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:12:36,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:12:37,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:12:37,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:12:37,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:12:37,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:12:37,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:12:37,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:12:37,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:12:37,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:12:37,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:12:37,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:12:37,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:12:37,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:12:37,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:12:37,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:12:37,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:12:37,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:12:37,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:12:37,030 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-24 21:12:37,082 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:12:37,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:12:37,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:12:37,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:12:37,085 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:12:37,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:12:37,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:12:37,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:12:37,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:12:37,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:12:37,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:12:37,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:12:37,088 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:12:37,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:12:37,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:12:37,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:12:37,089 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:12:37,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:12:37,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:12:37,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:12:37,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:12:37,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:12:37,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:12:37,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:12:37,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:12:37,091 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:12:37,091 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 21:12:37,091 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 21:12:37,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:12:37,597 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:12:37,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:12:37,603 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:12:37,604 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:12:37,606 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-24 21:12:37,701 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/533c5a4db/bdc365d718294e368f00a739303c85e1/FLAG4b7d64112 [2020-09-24 21:12:38,608 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:12:38,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-24 21:12:38,651 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/533c5a4db/bdc365d718294e368f00a739303c85e1/FLAG4b7d64112 [2020-09-24 21:12:39,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/533c5a4db/bdc365d718294e368f00a739303c85e1 [2020-09-24 21:12:39,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:12:39,097 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:12:39,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:12:39,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:12:39,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:12:39,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:12:39" (1/1) ... [2020-09-24 21:12:39,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56da84b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:39, skipping insertion in model container [2020-09-24 21:12:39,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:12:39" (1/1) ... [2020-09-24 21:12:39,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:12:39,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:12:40,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:12:40,736 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:12:41,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:12:41,299 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:12:41,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:41 WrapperNode [2020-09-24 21:12:41,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:12:41,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:12:41,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:12:41,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:12:41,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:41" (1/1) ... [2020-09-24 21:12:41,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:41" (1/1) ... [2020-09-24 21:12:41,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:41" (1/1) ... [2020-09-24 21:12:41,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:41" (1/1) ... [2020-09-24 21:12:41,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:41" (1/1) ... [2020-09-24 21:12:41,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:41" (1/1) ... [2020-09-24 21:12:41,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:41" (1/1) ... [2020-09-24 21:12:41,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:12:41,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:12:41,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:12:41,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:12:41,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:12:41,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:12:41,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:12:41,629 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2020-09-24 21:12:41,629 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2020-09-24 21:12:41,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2020-09-24 21:12:41,629 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2020-09-24 21:12:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2020-09-24 21:12:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-09-24 21:12:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-09-24 21:12:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-24 21:12:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-24 21:12:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-24 21:12:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:12:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 21:12:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 21:12:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-09-24 21:12:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-09-24 21:12:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 21:12:41,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 21:12:41,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 21:12:41,633 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-09-24 21:12:41,633 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-24 21:12:41,633 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_probe [2020-09-24 21:12:41,633 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mirror [2020-09-24 21:12:41,634 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_found [2020-09-24 21:12:41,634 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_command [2020-09-24 21:12:41,634 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_status [2020-09-24 21:12:41,634 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_setmask [2020-09-24 21:12:41,634 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_reset [2020-09-24 21:12:41,635 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_to_card [2020-09-24 21:12:41,635 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_copy_from_card [2020-09-24 21:12:41,635 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_init [2020-09-24 21:12:41,635 INFO L138 BoogieDeclarations]: Found implementation of procedure com90xx_exit [2020-09-24 21:12:41,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-09-24 21:12:41,635 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-09-24 21:12:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-09-24 21:12:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-09-24 21:12:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-09-24 21:12:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:12:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_5 [2020-09-24 21:12:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_6 [2020-09-24 21:12:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_7 [2020-09-24 21:12:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 21:12:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-24 21:12:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-24 21:12:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-24 21:12:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-24 21:12:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_get [2020-09-24 21:12:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2020-09-24 21:12:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2020-09-24 21:12:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_and_exit [2020-09-24 21:12:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_refcount [2020-09-24 21:12:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 21:12:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-09-24 21:12:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-09-24 21:12:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-09-24 21:12:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_arcdev [2020-09-24 21:12:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_interrupt [2020-09-24 21:12:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-09-24 21:12:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-09-24 21:12:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2020-09-24 21:12:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2020-09-24 21:12:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 21:12:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-24 21:12:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2020-09-24 21:12:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2020-09-24 21:12:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-09-24 21:12:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-09-24 21:12:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-09-24 21:12:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 21:12:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 21:12:41,643 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 21:12:41,643 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-24 21:12:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:12:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-24 21:12:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-24 21:12:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 21:12:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-09-24 21:12:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-09-24 21:12:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2020-09-24 21:12:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2020-09-24 21:12:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2020-09-24 21:12:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2020-09-24 21:12:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2020-09-24 21:12:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2020-09-24 21:12:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-24 21:12:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2020-09-24 21:12:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-09-24 21:12:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-09-24 21:12:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 21:12:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 21:12:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-24 21:12:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-24 21:12:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 21:12:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-24 21:12:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:12:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 21:12:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:12:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 21:12:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:12:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:12:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:12:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 21:12:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-09-24 21:12:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-09-24 21:12:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 21:12:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 21:12:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 21:12:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 21:12:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-09-24 21:12:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-09-24 21:12:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-09-24 21:12:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-09-24 21:12:41,650 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-09-24 21:12:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-09-24 21:12:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-09-24 21:12:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_5 [2020-09-24 21:12:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-09-24 21:12:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_6 [2020-09-24 21:12:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_7 [2020-09-24 21:12:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2020-09-24 21:12:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2020-09-24 21:12:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-09-24 21:12:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-24 21:12:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-09-24 21:12:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-09-24 21:12:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-09-24 21:12:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_interrupt [2020-09-24 21:12:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_arcdev [2020-09-24 21:12:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_found [2020-09-24 21:12:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_command [2020-09-24 21:12:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_status [2020-09-24 21:12:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_setmask [2020-09-24 21:12:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_reset [2020-09-24 21:12:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_to_card [2020-09-24 21:12:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_copy_from_card [2020-09-24 21:12:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_probe [2020-09-24 21:12:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:12:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:12:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:12:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:12:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:12:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:12:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure check_mirror [2020-09-24 21:12:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_init [2020-09-24 21:12:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure com90xx_exit [2020-09-24 21:12:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 21:12:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 21:12:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:12:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 21:12:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-24 21:12:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-24 21:12:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-24 21:12:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-24 21:12:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_get [2020-09-24 21:12:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2020-09-24 21:12:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2020-09-24 21:12:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_and_exit [2020-09-24 21:12:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_refcount [2020-09-24 21:12:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:12:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:12:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:12:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:12:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-24 21:12:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-24 21:12:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-24 21:12:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-24 21:12:42,483 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 21:12:42,489 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_module_put_and_exitFINAL: assume true; [2020-09-24 21:12:44,017 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:12:44,017 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 21:12:44,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:12:44 BoogieIcfgContainer [2020-09-24 21:12:44,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:12:44,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:12:44,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:12:44,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:12:44,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:12:39" (1/3) ... [2020-09-24 21:12:44,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457ea359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:12:44, skipping insertion in model container [2020-09-24 21:12:44,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:12:41" (2/3) ... [2020-09-24 21:12:44,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457ea359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:12:44, skipping insertion in model container [2020-09-24 21:12:44,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:12:44" (3/3) ... [2020-09-24 21:12:44,039 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--arcnet--com90xx.ko-entry_point.cil.out.i [2020-09-24 21:12:44,051 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:12:44,064 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:12:44,086 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:12:44,127 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:12:44,127 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:12:44,127 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:12:44,127 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:12:44,127 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:12:44,128 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:12:44,128 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:12:44,128 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:12:44,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-09-24 21:12:44,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-09-24 21:12:44,249 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:12:44,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:12:44,251 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:12:44,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:12:44,259 INFO L82 PathProgramCache]: Analyzing trace with hash 462327911, now seen corresponding path program 1 times [2020-09-24 21:12:44,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:12:44,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1683832622] [2020-09-24 21:12:44,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:12:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:45,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:46,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:48,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:48,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-09-24 21:12:48,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:12:48,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3440 [2020-09-24 21:12:48,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:48,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:12:48,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 278 [2020-09-24 21:12:48,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:12:48,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:12:50,333 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification that was a NOOP. DAG size: 514 [2020-09-24 21:12:50,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:12:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:50,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:50,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:50,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 21:12:50,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:50,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576 [2020-09-24 21:12:50,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:50,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:12:50,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:50,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:12:50,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:51,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-09-24 21:12:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:51,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:51,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:51,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:12:51,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:51,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 21:12:51,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:51,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:12:51,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:12:51,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:12:51,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:51,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2020-09-24 21:12:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:12:51,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:12:51,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:12:51,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:12:51,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:12:51,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 21:12:51,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:12:51,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:12:51,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:12:51,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:12:51,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:12:51,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:12:51,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1683832622] [2020-09-24 21:12:51,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:12:51,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:12:51,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139649766] [2020-09-24 21:12:51,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:12:51,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:12:51,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:12:51,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:12:51,503 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 5 states. [2020-09-24 21:12:54,622 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification that was a NOOP. DAG size: 516 [2020-09-24 21:13:08,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:13:08,623 INFO L93 Difference]: Finished difference Result 3046 states and 3696 transitions. [2020-09-24 21:13:08,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:13:08,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 298 [2020-09-24 21:13:08,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:13:08,661 INFO L225 Difference]: With dead ends: 3046 [2020-09-24 21:13:08,662 INFO L226 Difference]: Without dead ends: 1945 [2020-09-24 21:13:08,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:13:08,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2020-09-24 21:13:08,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1458. [2020-09-24 21:13:08,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1458 states. [2020-09-24 21:13:08,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1682 transitions. [2020-09-24 21:13:08,996 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1682 transitions. Word has length 298 [2020-09-24 21:13:08,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:13:08,997 INFO L479 AbstractCegarLoop]: Abstraction has 1458 states and 1682 transitions. [2020-09-24 21:13:08,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:13:08,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1682 transitions. [2020-09-24 21:13:09,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2020-09-24 21:13:09,009 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:13:09,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:13:09,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:13:09,012 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:13:09,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:13:09,013 INFO L82 PathProgramCache]: Analyzing trace with hash -95169640, now seen corresponding path program 1 times [2020-09-24 21:13:09,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:13:09,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1616207508] [2020-09-24 21:13:09,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:13:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:09,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:10,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:10,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:11,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:12,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:14,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:14,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-09-24 21:13:14,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:13:14,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-09-24 21:13:14,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:14,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:13:14,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-09-24 21:13:14,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 21:13:14,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:16,033 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 514 [2020-09-24 21:13:16,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:13:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:16,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:17,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:17,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 21:13:17,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:17,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1834 [2020-09-24 21:13:17,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:17,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:13:17,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:17,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 247 [2020-09-24 21:13:17,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:18,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-09-24 21:13:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:18,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:18,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:18,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:13:18,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:13:18,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 21:13:18,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:18,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:13:18,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:18,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:13:18,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:13:18,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2020-09-24 21:13:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:18,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:18,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:18,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:19,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:19,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 21:13:19,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:13:19,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 673 [2020-09-24 21:13:19,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:19,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:13:19,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:13:19,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:13:19,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:19,375 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-09-24 21:13:19,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:13:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:13:19,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:19,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:19,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:13:19,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:13:19,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 21:13:19,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:13:19,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 561 [2020-09-24 21:13:19,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:13:19,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:13:19,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:13:19,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 21:13:19,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:13:20,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:13:20,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1616207508] [2020-09-24 21:13:20,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:13:20,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 21:13:20,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626526537] [2020-09-24 21:13:20,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 21:13:20,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:13:20,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 21:13:20,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:13:20,698 INFO L87 Difference]: Start difference. First operand 1458 states and 1682 transitions. Second operand 12 states. [2020-09-24 21:13:22,132 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 517 [2020-09-24 21:13:25,937 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification that was a NOOP. DAG size: 522