./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 11d3d0800a0e0d53b4d0190c9a443eccbd843952940cf36579a7110b5d32d86b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 19:29:27,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 19:29:27,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 19:29:27,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 19:29:27,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 19:29:27,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 19:29:27,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 19:29:27,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 19:29:27,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 19:29:27,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 19:29:27,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 19:29:27,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 19:29:27,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 19:29:27,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 19:29:27,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 19:29:28,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 19:29:28,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 19:29:28,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 19:29:28,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 19:29:28,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 19:29:28,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 19:29:28,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 19:29:28,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 19:29:28,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 19:29:28,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 19:29:28,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 19:29:28,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 19:29:28,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 19:29:28,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 19:29:28,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 19:29:28,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 19:29:28,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 19:29:28,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 19:29:28,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 19:29:28,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 19:29:28,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 19:29:28,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 19:29:28,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 19:29:28,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 19:29:28,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 19:29:28,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 19:29:28,023 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 19:29:28,043 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 19:29:28,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 19:29:28,043 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 19:29:28,044 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 19:29:28,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 19:29:28,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 19:29:28,045 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 19:29:28,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 19:29:28,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 19:29:28,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 19:29:28,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 19:29:28,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 19:29:28,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 19:29:28,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 19:29:28,046 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 19:29:28,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 19:29:28,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 19:29:28,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 19:29:28,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 19:29:28,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 19:29:28,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 19:29:28,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 19:29:28,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 19:29:28,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 19:29:28,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 19:29:28,048 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 19:29:28,048 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 19:29:28,048 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 19:29:28,048 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 19:29:28,048 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11d3d0800a0e0d53b4d0190c9a443eccbd843952940cf36579a7110b5d32d86b [2021-11-06 19:29:28,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 19:29:28,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 19:29:28,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 19:29:28,236 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 19:29:28,237 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 19:29:28,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-06 19:29:28,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fff2ad257/5fd8993d482144bbb955817a6e9e277f/FLAG37e2be902 [2021-11-06 19:29:28,924 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 19:29:28,924 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-06 19:29:28,995 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fff2ad257/5fd8993d482144bbb955817a6e9e277f/FLAG37e2be902 [2021-11-06 19:29:29,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fff2ad257/5fd8993d482144bbb955817a6e9e277f [2021-11-06 19:29:29,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 19:29:29,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 19:29:29,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 19:29:29,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 19:29:29,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 19:29:29,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:29:29" (1/1) ... [2021-11-06 19:29:29,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34bfd0a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:29, skipping insertion in model container [2021-11-06 19:29:29,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:29:29" (1/1) ... [2021-11-06 19:29:29,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 19:29:29,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 19:29:31,147 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[323389,323402] [2021-11-06 19:29:31,149 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[323534,323547] [2021-11-06 19:29:31,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 19:29:31,176 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 19:29:31,427 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[323389,323402] [2021-11-06 19:29:31,428 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[323534,323547] [2021-11-06 19:29:31,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 19:29:31,537 INFO L208 MainTranslator]: Completed translation [2021-11-06 19:29:31,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:31 WrapperNode [2021-11-06 19:29:31,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 19:29:31,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 19:29:31,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 19:29:31,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 19:29:31,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:31" (1/1) ... [2021-11-06 19:29:31,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:31" (1/1) ... [2021-11-06 19:29:55,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 19:29:55,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 19:29:55,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 19:29:55,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 19:29:55,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:31" (1/1) ... [2021-11-06 19:29:55,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:31" (1/1) ... [2021-11-06 19:29:56,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:31" (1/1) ... [2021-11-06 19:29:56,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:31" (1/1) ... [2021-11-06 19:29:59,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:31" (1/1) ... [2021-11-06 19:29:59,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:31" (1/1) ... [2021-11-06 19:30:00,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:31" (1/1) ... [2021-11-06 19:30:01,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 19:30:01,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 19:30:01,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 19:30:01,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 19:30:01,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:31" (1/1) ... [2021-11-06 19:30:01,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 19:30:01,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 19:30:01,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 19:30:01,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 19:30:01,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 19:30:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 19:30:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 19:30:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 19:30:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 19:30:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 19:30:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 19:30:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 19:30:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 19:30:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 19:30:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 19:30:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 19:30:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 19:30:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 19:30:01,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 19:39:13,283 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_10_returnLabel: main_#res := 0; [2021-11-06 19:39:13,284 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L9510: #t~ret1231 := main_#res; [2021-11-06 19:39:13,285 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 19:39:13,309 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset; [2021-11-06 19:39:13,430 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 19:39:13,430 INFO L299 CfgBuilder]: Removed 81161 assume(true) statements. [2021-11-06 19:39:13,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:39:13 BoogieIcfgContainer [2021-11-06 19:39:13,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 19:39:13,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 19:39:13,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 19:39:13,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 19:39:13,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:29:29" (1/3) ... [2021-11-06 19:39:13,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8937bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:39:13, skipping insertion in model container [2021-11-06 19:39:13,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:29:31" (2/3) ... [2021-11-06 19:39:13,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8937bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:39:13, skipping insertion in model container [2021-11-06 19:39:13,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:39:13" (3/3) ... [2021-11-06 19:39:13,491 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-06 19:39:13,494 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 19:39:13,494 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-11-06 19:39:13,660 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 19:39:13,666 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 19:39:13,666 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-11-06 19:39:14,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 62011 states, 61991 states have (on average 1.370844154796664) internal successors, (84980), 62010 states have internal predecessors, (84980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:39:14,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-06 19:39:14,259 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:39:14,260 INFO L513 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] [2021-11-06 19:39:14,260 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-06 19:39:14,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:39:14,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1485338102, now seen corresponding path program 1 times [2021-11-06 19:39:14,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:39:14,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852357345] [2021-11-06 19:39:14,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:39:14,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:39:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:39:15,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:39:15,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:39:15,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852357345] [2021-11-06 19:39:15,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852357345] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:39:15,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:39:15,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:39:15,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988517315] [2021-11-06 19:39:15,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:39:15,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:39:15,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:39:15,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:39:15,277 INFO L87 Difference]: Start difference. First operand has 62011 states, 61991 states have (on average 1.370844154796664) internal successors, (84980), 62010 states have internal predecessors, (84980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:39:21,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:39:21,089 INFO L93 Difference]: Finished difference Result 185901 states and 254740 transitions. [2021-11-06 19:39:21,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:39:21,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-11-06 19:39:21,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:39:21,497 INFO L225 Difference]: With dead ends: 185901 [2021-11-06 19:39:21,497 INFO L226 Difference]: Without dead ends: 123568 [2021-11-06 19:39:21,674 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:39:21,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123568 states. [2021-11-06 19:39:24,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123568 to 123528. [2021-11-06 19:39:24,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123528 states, 123508 states have (on average 1.3675308482041648) internal successors, (168901), 123527 states have internal predecessors, (168901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:39:25,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123528 states to 123528 states and 168901 transitions. [2021-11-06 19:39:25,328 INFO L78 Accepts]: Start accepts. Automaton has 123528 states and 168901 transitions. Word has length 109 [2021-11-06 19:39:25,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:39:25,328 INFO L470 AbstractCegarLoop]: Abstraction has 123528 states and 168901 transitions. [2021-11-06 19:39:25,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:39:25,329 INFO L276 IsEmpty]: Start isEmpty. Operand 123528 states and 168901 transitions. [2021-11-06 19:39:25,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-06 19:39:25,335 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:39:25,335 INFO L513 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] [2021-11-06 19:39:25,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 19:39:25,335 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-06 19:39:25,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:39:25,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1067941496, now seen corresponding path program 1 times [2021-11-06 19:39:25,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:39:25,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210088836] [2021-11-06 19:39:25,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:39:25,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:39:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:39:25,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:39:25,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:39:25,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210088836] [2021-11-06 19:39:25,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210088836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:39:25,596 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:39:25,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 19:39:25,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036593591] [2021-11-06 19:39:25,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:39:25,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:39:25,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:39:25,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:39:25,598 INFO L87 Difference]: Start difference. First operand 123528 states and 168901 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:39:28,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:39:28,911 INFO L93 Difference]: Finished difference Result 296588 states and 405537 transitions. [2021-11-06 19:39:28,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:39:28,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-11-06 19:39:28,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:39:29,268 INFO L225 Difference]: With dead ends: 296588 [2021-11-06 19:39:29,268 INFO L226 Difference]: Without dead ends: 173116 [2021-11-06 19:39:29,550 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:39:29,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173116 states. [2021-11-06 19:39:33,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173116 to 173100. [2021-11-06 19:39:33,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173100 states, 173080 states have (on average 1.367477467067252) internal successors, (236683), 173099 states have internal predecessors, (236683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)