./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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/combinations/Problem05_label46+token_ring.13.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash 39c77cf00428880e24d066dff5fe9610612ae1f22999f65a4af3f1456418d087 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:49:48,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:49:48,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:49:48,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:49:48,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:49:48,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:49:48,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:49:48,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:49:48,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:49:48,745 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:49:48,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:49:48,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:49:48,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:49:48,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:49:48,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:49:48,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:49:48,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:49:48,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:49:48,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:49:48,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:49:48,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:49:48,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:49:48,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:49:48,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:49:48,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:49:48,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:49:48,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:49:48,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:49:48,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:49:48,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:49:48,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:49:48,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:49:48,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:49:48,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:49:48,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:49:48,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:49:48,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:49:48,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:49:48,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:49:48,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:49:48,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:49:48,765 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:49:48,782 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:49:48,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:49:48,783 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:49:48,783 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:49:48,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:49:48,784 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:49:48,784 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:49:48,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:49:48,785 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:49:48,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:49:48,786 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:49:48,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:49:48,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:49:48,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:49:48,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:49:48,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:49:48,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:49:48,787 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:49:48,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:49:48,787 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:49:48,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:49:48,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:49:48,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:49:48,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:49:48,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:49:48,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:49:48,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:49:48,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:49:48,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:49:48,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:49:48,789 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:49:48,789 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:49:48,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:49:48,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:49:48,789 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39c77cf00428880e24d066dff5fe9610612ae1f22999f65a4af3f1456418d087 [2021-12-15 11:49:49,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:49:49,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:49:49,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:49:49,034 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:49:49,035 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:49:49,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-1.c [2021-12-15 11:49:49,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/255604def/430c1ed10b5c4e2486ba89d6f3a1f3c4/FLAG926b8faf0 [2021-12-15 11:49:49,755 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:49:49,756 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-1.c [2021-12-15 11:49:49,791 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/255604def/430c1ed10b5c4e2486ba89d6f3a1f3c4/FLAG926b8faf0 [2021-12-15 11:49:49,863 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/255604def/430c1ed10b5c4e2486ba89d6f3a1f3c4 [2021-12-15 11:49:49,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:49:49,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:49:49,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:49:49,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:49:49,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:49:49,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:49:49" (1/1) ... [2021-12-15 11:49:49,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50f7eefb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:49, skipping insertion in model container [2021-12-15 11:49:49,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:49:49" (1/1) ... [2021-12-15 11:49:49,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:49:50,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:49:51,180 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-1.c[382357,382370] [2021-12-15 11:49:51,197 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-1.c[383339,383352] [2021-12-15 11:49:51,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:49:51,459 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:49:52,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-1.c[382357,382370] [2021-12-15 11:49:52,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-1.c[383339,383352] [2021-12-15 11:49:52,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:49:52,140 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:49:52,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:52 WrapperNode [2021-12-15 11:49:52,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:49:52,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:49:52,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:49:52,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:49:52,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:52" (1/1) ... [2021-12-15 11:49:52,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:52" (1/1) ... [2021-12-15 11:49:52,447 INFO L137 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13262 [2021-12-15 11:49:52,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:49:52,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:49:52,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:49:52,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:49:52,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:52" (1/1) ... [2021-12-15 11:49:52,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:52" (1/1) ... [2021-12-15 11:49:52,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:52" (1/1) ... [2021-12-15 11:49:52,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:52" (1/1) ... [2021-12-15 11:49:52,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:52" (1/1) ... [2021-12-15 11:49:52,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:52" (1/1) ... [2021-12-15 11:49:52,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:52" (1/1) ... [2021-12-15 11:49:52,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:49:52,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:49:52,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:49:52,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:49:52,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:52" (1/1) ... [2021-12-15 11:49:52,875 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:49:52,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:49:52,893 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) [2021-12-15 11:49:52,911 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 [2021-12-15 11:49:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:49:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-12-15 11:49:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-12-15 11:49:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-12-15 11:49:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-12-15 11:49:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-12-15 11:49:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-12-15 11:49:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-12-15 11:49:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-12-15 11:49:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-12-15 11:49:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-12-15 11:49:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-12-15 11:49:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-12-15 11:49:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-12-15 11:49:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-12-15 11:49:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:49:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:49:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:49:53,054 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:49:53,055 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:49:57,991 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:49:58,016 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:49:58,016 INFO L301 CfgBuilder]: Removed 17 assume(true) statements. [2021-12-15 11:49:58,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:49:58 BoogieIcfgContainer [2021-12-15 11:49:58,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:49:58,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:49:58,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:49:58,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:49:58,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:49:49" (1/3) ... [2021-12-15 11:49:58,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1687ed59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:49:58, skipping insertion in model container [2021-12-15 11:49:58,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:49:52" (2/3) ... [2021-12-15 11:49:58,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1687ed59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:49:58, skipping insertion in model container [2021-12-15 11:49:58,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:49:58" (3/3) ... [2021-12-15 11:49:58,041 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.13.cil-1.c [2021-12-15 11:49:58,044 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:49:58,044 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-15 11:49:58,083 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:49:58,087 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 [2021-12-15 11:49:58,087 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-15 11:49:58,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 2598 states, 2559 states have (on average 1.842125830402501) internal successors, (4714), 2564 states have internal predecessors, (4714), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2021-12-15 11:49:58,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-12-15 11:49:58,145 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:49:58,146 INFO L514 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] [2021-12-15 11:49:58,146 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:49:58,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:49:58,150 INFO L85 PathProgramCache]: Analyzing trace with hash -384467650, now seen corresponding path program 1 times [2021-12-15 11:49:58,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:49:58,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588306437] [2021-12-15 11:49:58,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:49:58,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:49:58,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:49:58,198 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 11:49:58,202 INFO L158 Benchmark]: Toolchain (without parser) took 8334.01ms. Allocated memory was 119.5MB in the beginning and 1.0GB in the end (delta: 910.2MB). Free memory was 83.9MB in the beginning and 614.8MB in the end (delta: -530.9MB). Peak memory consumption was 380.3MB. Max. memory is 16.1GB. [2021-12-15 11:49:58,203 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 119.5MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:49:58,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2271.82ms. Allocated memory was 119.5MB in the beginning and 272.6MB in the end (delta: 153.1MB). Free memory was 83.9MB in the beginning and 138.9MB in the end (delta: -55.0MB). Peak memory consumption was 128.4MB. Max. memory is 16.1GB. [2021-12-15 11:49:58,204 INFO L158 Benchmark]: Boogie Procedure Inliner took 306.03ms. Allocated memory is still 272.6MB. Free memory was 138.9MB in the beginning and 119.9MB in the end (delta: 19.1MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. [2021-12-15 11:49:58,204 INFO L158 Benchmark]: Boogie Preprocessor took 401.10ms. Allocated memory was 272.6MB in the beginning and 545.3MB in the end (delta: 272.6MB). Free memory was 119.9MB in the beginning and 381.0MB in the end (delta: -261.1MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. [2021-12-15 11:49:58,205 INFO L158 Benchmark]: RCFGBuilder took 5185.26ms. Allocated memory was 545.3MB in the beginning and 1.0GB in the end (delta: 484.4MB). Free memory was 381.0MB in the beginning and 638.9MB in the end (delta: -258.0MB). Peak memory consumption was 278.9MB. Max. memory is 16.1GB. [2021-12-15 11:49:58,205 INFO L158 Benchmark]: TraceAbstraction took 164.01ms. Allocated memory is still 1.0GB. Free memory was 637.9MB in the beginning and 614.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-15 11:49:58,207 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 119.5MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2271.82ms. Allocated memory was 119.5MB in the beginning and 272.6MB in the end (delta: 153.1MB). Free memory was 83.9MB in the beginning and 138.9MB in the end (delta: -55.0MB). Peak memory consumption was 128.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 306.03ms. Allocated memory is still 272.6MB. Free memory was 138.9MB in the beginning and 119.9MB in the end (delta: 19.1MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 401.10ms. Allocated memory was 272.6MB in the beginning and 545.3MB in the end (delta: 272.6MB). Free memory was 119.9MB in the beginning and 381.0MB in the end (delta: -261.1MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. * RCFGBuilder took 5185.26ms. Allocated memory was 545.3MB in the beginning and 1.0GB in the end (delta: 484.4MB). Free memory was 381.0MB in the beginning and 638.9MB in the end (delta: -258.0MB). Peak memory consumption was 278.9MB. Max. memory is 16.1GB. * TraceAbstraction took 164.01ms. Allocated memory is still 1.0GB. Free memory was 637.9MB in the beginning and 614.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 11:49:58,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/combinations/Problem05_label46+token_ring.13.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 32bit --witnessprinter.graph.data.programhash 39c77cf00428880e24d066dff5fe9610612ae1f22999f65a4af3f1456418d087 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:49:59,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:49:59,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:50:00,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:50:00,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:50:00,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:50:00,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:50:00,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:50:00,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:50:00,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:50:00,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:50:00,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:50:00,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:50:00,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:50:00,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:50:00,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:50:00,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:50:00,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:50:00,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:50:00,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:50:00,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:50:00,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:50:00,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:50:00,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:50:00,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:50:00,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:50:00,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:50:00,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:50:00,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:50:00,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:50:00,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:50:00,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:50:00,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:50:00,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:50:00,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:50:00,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:50:00,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:50:00,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:50:00,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:50:00,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:50:00,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:50:00,057 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:50:00,084 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:50:00,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:50:00,085 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:50:00,085 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:50:00,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:50:00,086 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:50:00,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:50:00,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:50:00,088 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:50:00,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:50:00,088 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:50:00,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:50:00,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:50:00,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:50:00,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:50:00,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:50:00,089 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:50:00,089 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:50:00,090 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:50:00,090 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:50:00,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:50:00,090 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:50:00,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:50:00,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:50:00,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:50:00,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:50:00,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:50:00,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:50:00,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:50:00,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:50:00,091 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:50:00,091 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:50:00,092 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:50:00,092 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:50:00,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:50:00,092 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:50:00,092 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:50:00,093 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39c77cf00428880e24d066dff5fe9610612ae1f22999f65a4af3f1456418d087 [2021-12-15 11:50:00,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:50:00,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:50:00,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:50:00,408 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:50:00,411 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:50:00,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-1.c [2021-12-15 11:50:00,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c353975c/95f7845b20aa46ceb0f69f40794b76b7/FLAG26a37c808 [2021-12-15 11:50:01,243 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:50:01,243 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-1.c [2021-12-15 11:50:01,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c353975c/95f7845b20aa46ceb0f69f40794b76b7/FLAG26a37c808 [2021-12-15 11:50:01,439 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c353975c/95f7845b20aa46ceb0f69f40794b76b7 [2021-12-15 11:50:01,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:50:01,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:50:01,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:50:01,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:50:01,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:50:01,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:50:01" (1/1) ... [2021-12-15 11:50:01,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f1acbc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:50:01, skipping insertion in model container [2021-12-15 11:50:01,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:50:01" (1/1) ... [2021-12-15 11:50:01,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:50:01,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:50:02,766 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-1.c[382357,382370] [2021-12-15 11:50:02,782 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-1.c[383339,383352] [2021-12-15 11:50:03,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:50:03,041 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:50:03,623 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-1.c[382357,382370] [2021-12-15 11:50:03,626 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-1.c[383339,383352] [2021-12-15 11:50:03,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:50:03,692 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:50:03,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:50:03 WrapperNode [2021-12-15 11:50:03,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:50:03,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:50:03,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:50:03,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:50:03,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:50:03" (1/1) ... [2021-12-15 11:50:03,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:50:03" (1/1) ... [2021-12-15 11:50:04,041 INFO L137 Inliner]: procedures = 71, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13217 [2021-12-15 11:50:04,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:50:04,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:50:04,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:50:04,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:50:04,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:50:03" (1/1) ... [2021-12-15 11:50:04,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:50:03" (1/1) ... [2021-12-15 11:50:04,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:50:03" (1/1) ... [2021-12-15 11:50:04,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:50:03" (1/1) ... [2021-12-15 11:50:04,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:50:03" (1/1) ... [2021-12-15 11:50:04,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:50:03" (1/1) ... [2021-12-15 11:50:04,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:50:03" (1/1) ... [2021-12-15 11:50:04,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:50:04,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:50:04,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:50:04,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:50:04,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:50:03" (1/1) ... [2021-12-15 11:50:04,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:50:04,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:50:04,562 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) [2021-12-15 11:50:04,570 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 [2021-12-15 11:50:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:50:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-12-15 11:50:04,609 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-12-15 11:50:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-12-15 11:50:04,610 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-12-15 11:50:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-12-15 11:50:04,610 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-12-15 11:50:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:50:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-12-15 11:50:04,610 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-12-15 11:50:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-12-15 11:50:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-12-15 11:50:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-12-15 11:50:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-12-15 11:50:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-12-15 11:50:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-12-15 11:50:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:50:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:50:04,811 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:50:04,812 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:50:11,225 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:50:11,244 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:50:11,244 INFO L301 CfgBuilder]: Removed 17 assume(true) statements. [2021-12-15 11:50:11,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:50:11 BoogieIcfgContainer [2021-12-15 11:50:11,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:50:11,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:50:11,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:50:11,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:50:11,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:50:01" (1/3) ... [2021-12-15 11:50:11,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6a7fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:50:11, skipping insertion in model container [2021-12-15 11:50:11,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:50:03" (2/3) ... [2021-12-15 11:50:11,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6a7fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:50:11, skipping insertion in model container [2021-12-15 11:50:11,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:50:11" (3/3) ... [2021-12-15 11:50:11,254 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.13.cil-1.c [2021-12-15 11:50:11,258 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:50:11,258 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-15 11:50:11,300 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:50:11,306 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 [2021-12-15 11:50:11,306 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-15 11:50:11,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 2598 states, 2559 states have (on average 1.842125830402501) internal successors, (4714), 2564 states have internal predecessors, (4714), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2021-12-15 11:50:11,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-12-15 11:50:11,369 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:50:11,369 INFO L514 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] [2021-12-15 11:50:11,370 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:50:11,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:50:11,373 INFO L85 PathProgramCache]: Analyzing trace with hash -384467650, now seen corresponding path program 1 times [2021-12-15 11:50:11,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:50:11,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520579430] [2021-12-15 11:50:11,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:50:11,385 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:50:11,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:50:11,387 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 11:50:11,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 11:50:11,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-15 11:50:11,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 11:50:11,633 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 11:50:11,637 INFO L158 Benchmark]: Toolchain (without parser) took 10193.73ms. Allocated memory was 119.5MB in the beginning and 612.4MB in the end (delta: 492.8MB). Free memory was 87.5MB in the beginning and 189.1MB in the end (delta: -101.6MB). Peak memory consumption was 390.7MB. Max. memory is 16.1GB. [2021-12-15 11:50:11,638 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:50:11,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2247.74ms. Allocated memory was 119.5MB in the beginning and 199.2MB in the end (delta: 79.7MB). Free memory was 87.1MB in the beginning and 76.2MB in the end (delta: 10.9MB). Peak memory consumption was 109.2MB. Max. memory is 16.1GB. [2021-12-15 11:50:11,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 347.61ms. Allocated memory was 199.2MB in the beginning and 278.9MB in the end (delta: 79.7MB). Free memory was 76.2MB in the beginning and 125.1MB in the end (delta: -49.0MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2021-12-15 11:50:11,639 INFO L158 Benchmark]: Boogie Preprocessor took 478.35ms. Allocated memory is still 278.9MB. Free memory was 125.1MB in the beginning and 118.8MB in the end (delta: 6.3MB). Peak memory consumption was 82.9MB. Max. memory is 16.1GB. [2021-12-15 11:50:11,639 INFO L158 Benchmark]: RCFGBuilder took 6727.29ms. Allocated memory was 278.9MB in the beginning and 612.4MB in the end (delta: 333.4MB). Free memory was 118.8MB in the beginning and 217.4MB in the end (delta: -98.6MB). Peak memory consumption was 291.5MB. Max. memory is 16.1GB. [2021-12-15 11:50:11,643 INFO L158 Benchmark]: TraceAbstraction took 386.63ms. Allocated memory is still 612.4MB. Free memory was 216.3MB in the beginning and 189.1MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-12-15 11:50:11,646 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2247.74ms. Allocated memory was 119.5MB in the beginning and 199.2MB in the end (delta: 79.7MB). Free memory was 87.1MB in the beginning and 76.2MB in the end (delta: 10.9MB). Peak memory consumption was 109.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 347.61ms. Allocated memory was 199.2MB in the beginning and 278.9MB in the end (delta: 79.7MB). Free memory was 76.2MB in the beginning and 125.1MB in the end (delta: -49.0MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 478.35ms. Allocated memory is still 278.9MB. Free memory was 125.1MB in the beginning and 118.8MB in the end (delta: 6.3MB). Peak memory consumption was 82.9MB. Max. memory is 16.1GB. * RCFGBuilder took 6727.29ms. Allocated memory was 278.9MB in the beginning and 612.4MB in the end (delta: 333.4MB). Free memory was 118.8MB in the beginning and 217.4MB in the end (delta: -98.6MB). Peak memory consumption was 291.5MB. Max. memory is 16.1GB. * TraceAbstraction took 386.63ms. Allocated memory is still 612.4MB. Free memory was 216.3MB in the beginning and 189.1MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 11:50:11,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable