./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/loops/n.c24.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/loops/n.c24.i -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 --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 ff2f22c8c94593047c07aca289bcba7e507bc3ee948a7529dc94c8d7792bd95d --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:16:17,495 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:16:17,555 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-30 10:16:17,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:16:17,559 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:16:17,574 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:16:17,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:16:17,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:16:17,575 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:16:17,575 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:16:17,575 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:16:17,575 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:16:17,575 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:16:17,575 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:16:17,575 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:16:17,576 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:16:17,576 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:16:17,576 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:16:17,576 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:16:17,577 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:16:17,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:16:17,577 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:16:17,577 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:16:17,577 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:16:17,577 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:16:17,577 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:16:17,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:16:17,577 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:16:17,577 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:16:17,577 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:16:17,577 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 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 -> ff2f22c8c94593047c07aca289bcba7e507bc3ee948a7529dc94c8d7792bd95d [2025-04-30 10:16:17,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:16:17,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:16:17,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:16:17,816 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:16:17,816 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:16:17,817 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/n.c24.i [2025-04-30 10:16:19,110 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71dbf5fec/2180d975692943f4814df823db2abc66/FLAG10aa1a471 [2025-04-30 10:16:19,313 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:16:19,319 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c24.i [2025-04-30 10:16:19,344 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71dbf5fec/2180d975692943f4814df823db2abc66/FLAG10aa1a471 [2025-04-30 10:16:20,262 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71dbf5fec/2180d975692943f4814df823db2abc66 [2025-04-30 10:16:20,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:16:20,265 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:16:20,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:16:20,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:16:20,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:16:20,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:16:20" (1/1) ... [2025-04-30 10:16:20,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c39581b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:20, skipping insertion in model container [2025-04-30 10:16:20,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:16:20" (1/1) ... [2025-04-30 10:16:20,294 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:16:20,460 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c24.i[805,818] [2025-04-30 10:16:20,520 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:16:20,534 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:16:20,556 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c24.i[805,818] [2025-04-30 10:16:20,588 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:16:20,607 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:16:20,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:20 WrapperNode [2025-04-30 10:16:20,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:16:20,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:16:20,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:16:20,610 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:16:20,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:20" (1/1) ... [2025-04-30 10:16:20,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:20" (1/1) ... [2025-04-30 10:16:20,643 INFO L138 Inliner]: procedures = 67, calls = 39, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 149 [2025-04-30 10:16:20,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:16:20,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:16:20,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:16:20,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:16:20,654 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:20" (1/1) ... [2025-04-30 10:16:20,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:20" (1/1) ... [2025-04-30 10:16:20,658 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:20" (1/1) ... [2025-04-30 10:16:20,678 INFO L175 MemorySlicer]: Split 19 memory accesses to 4 slices as follows [2, 8, 2, 7]. 42 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8, 0, 0]. The 6 writes are split as follows [0, 0, 1, 5]. [2025-04-30 10:16:20,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:20" (1/1) ... [2025-04-30 10:16:20,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:20" (1/1) ... [2025-04-30 10:16:20,683 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:20" (1/1) ... [2025-04-30 10:16:20,684 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:20" (1/1) ... [2025-04-30 10:16:20,686 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:20" (1/1) ... [2025-04-30 10:16:20,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:20" (1/1) ... [2025-04-30 10:16:20,688 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:20" (1/1) ... [2025-04-30 10:16:20,690 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:16:20,691 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:16:20,691 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:16:20,691 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:16:20,692 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:20" (1/1) ... [2025-04-30 10:16:20,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:16:20,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:16:20,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-30 10:16:20,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-30 10:16:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:16:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-04-30 10:16:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-04-30 10:16:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-04-30 10:16:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-04-30 10:16:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-30 10:16:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-30 10:16:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-30 10:16:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-30 10:16:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-04-30 10:16:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-30 10:16:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-30 10:16:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-30 10:16:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-30 10:16:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-04-30 10:16:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-30 10:16:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-30 10:16:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-30 10:16:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-04-30 10:16:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:16:20,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:16:20,807 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:16:20,808 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:16:20,927 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.variables.ProgramConst.belongsToSmtTheory()" because "" is null at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SMT$ConstOnlyIdentifierTranslator.getSmtIdentifier(Boogie2SMT.java:190) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.getSmtIdentifier(Expression2Term.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translate(Expression2Term.java:192) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translateArrayAccess(Expression2Term.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translate(Expression2Term.java:186) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translateToTerms(Expression2Term.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.addSummary(Statements2TransFormula.java:408) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.statementSequence(Statements2TransFormula.java:700) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.util.TransFormulaAdder.addTransitionFormulas(TransFormulaAdder.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:693) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-04-30 10:16:20,935 INFO L158 Benchmark]: Toolchain (without parser) took 669.88ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 77.7MB in the end (delta: 34.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-30 10:16:20,935 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:16:20,936 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.90ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 96.0MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:16:20,936 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.46ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 94.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:16:20,936 INFO L158 Benchmark]: Boogie Preprocessor took 44.43ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 92.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:16:20,936 INFO L158 Benchmark]: RCFGBuilder took 242.94ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 77.7MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:16:20,938 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.90ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 96.0MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.46ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 94.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.43ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 92.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 242.94ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 77.7MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.variables.ProgramConst.belongsToSmtTheory()" because "" is null de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.variables.ProgramConst.belongsToSmtTheory()" because "" is null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SMT$ConstOnlyIdentifierTranslator.getSmtIdentifier(Boogie2SMT.java:190) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2025-04-30 10:16:20,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/loops/n.c24.i -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 --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 ff2f22c8c94593047c07aca289bcba7e507bc3ee948a7529dc94c8d7792bd95d --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:16:22,746 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:16:22,843 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-04-30 10:16:22,850 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:16:22,851 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:16:22,868 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:16:22,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:16:22,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:16:22,870 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:16:22,870 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:16:22,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:16:22,870 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:16:22,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:16:22,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:16:22,871 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:16:22,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:16:22,871 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:16:22,871 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:16:22,872 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:16:22,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:16:22,872 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:16:22,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:16:22,873 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:16:22,873 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-30 10:16:22,873 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-04-30 10:16:22,873 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-04-30 10:16:22,873 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:16:22,873 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:16:22,873 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:16:22,873 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:16:22,873 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:16:22,873 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:16:22,873 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:16:22,874 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:16:22,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:16:22,874 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:16:22,874 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:16:22,874 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:16:22,874 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:16:22,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:16:22,874 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:16:22,874 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:16:22,874 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:16:22,875 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:16:22,875 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-04-30 10:16:22,875 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-04-30 10:16:22,875 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:16:22,875 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:16:22,875 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:16:22,875 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 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 -> ff2f22c8c94593047c07aca289bcba7e507bc3ee948a7529dc94c8d7792bd95d [2025-04-30 10:16:23,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:16:23,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:16:23,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:16:23,110 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:16:23,110 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:16:23,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/n.c24.i [2025-04-30 10:16:24,397 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcffb42c8/466c9432e22b4a989e4beb82fc58f75e/FLAGa1878bb54 [2025-04-30 10:16:24,567 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:16:24,567 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c24.i [2025-04-30 10:16:24,577 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcffb42c8/466c9432e22b4a989e4beb82fc58f75e/FLAGa1878bb54 [2025-04-30 10:16:25,597 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcffb42c8/466c9432e22b4a989e4beb82fc58f75e [2025-04-30 10:16:25,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:16:25,600 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:16:25,600 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:16:25,600 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:16:25,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:16:25,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:16:25" (1/1) ... [2025-04-30 10:16:25,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd23256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:25, skipping insertion in model container [2025-04-30 10:16:25,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:16:25" (1/1) ... [2025-04-30 10:16:25,616 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:16:25,757 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c24.i[805,818] [2025-04-30 10:16:25,802 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:16:25,815 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:16:25,835 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/n.c24.i[805,818] [2025-04-30 10:16:25,863 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:16:25,880 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:16:25,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:25 WrapperNode [2025-04-30 10:16:25,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:16:25,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:16:25,887 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:16:25,887 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:16:25,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:25" (1/1) ... [2025-04-30 10:16:25,908 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:25" (1/1) ... [2025-04-30 10:16:25,926 INFO L138 Inliner]: procedures = 70, calls = 39, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 142 [2025-04-30 10:16:25,928 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:16:25,929 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:16:25,929 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:16:25,930 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:16:25,935 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:25" (1/1) ... [2025-04-30 10:16:25,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:25" (1/1) ... [2025-04-30 10:16:25,937 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:25" (1/1) ... [2025-04-30 10:16:25,959 INFO L175 MemorySlicer]: Split 19 memory accesses to 4 slices as follows [2, 8, 7, 2]. 42 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8, 0, 0]. The 6 writes are split as follows [0, 0, 5, 1]. [2025-04-30 10:16:25,959 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:25" (1/1) ... [2025-04-30 10:16:25,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:25" (1/1) ... [2025-04-30 10:16:25,970 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:25" (1/1) ... [2025-04-30 10:16:25,970 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:25" (1/1) ... [2025-04-30 10:16:25,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:25" (1/1) ... [2025-04-30 10:16:25,975 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:25" (1/1) ... [2025-04-30 10:16:25,976 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:25" (1/1) ... [2025-04-30 10:16:25,982 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:16:25,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:16:25,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:16:25,986 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:16:25,987 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:16:25" (1/1) ... [2025-04-30 10:16:25,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:16:26,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:16:26,012 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-30 10:16:26,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-30 10:16:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:16:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-04-30 10:16:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-04-30 10:16:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2025-04-30 10:16:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2025-04-30 10:16:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2025-04-30 10:16:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2025-04-30 10:16:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:16:26,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:16:26,119 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:16:26,120 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:16:26,256 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.variables.ProgramConst.belongsToSmtTheory()" because "" is null at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SMT$ConstOnlyIdentifierTranslator.getSmtIdentifier(Boogie2SMT.java:190) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.getSmtIdentifier(Expression2Term.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translate(Expression2Term.java:192) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translateArrayAccess(Expression2Term.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translate(Expression2Term.java:186) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translateBitVectorAccess(Expression2Term.java:262) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translate(Expression2Term.java:189) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translateToTerms(Expression2Term.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.addSummary(Statements2TransFormula.java:408) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.statementSequence(Statements2TransFormula.java:700) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.util.TransFormulaAdder.addTransitionFormulas(TransFormulaAdder.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:693) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) 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) [2025-04-30 10:16:26,260 INFO L158 Benchmark]: Toolchain (without parser) took 660.31ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 55.8MB in the end (delta: 36.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-30 10:16:26,261 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:16:26,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.88ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 74.8MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:16:26,261 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.20ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 72.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:16:26,261 INFO L158 Benchmark]: Boogie Preprocessor took 56.01ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 70.4MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:16:26,264 INFO L158 Benchmark]: RCFGBuilder took 273.32ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 55.8MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:16:26,266 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 62.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.88ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 74.8MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.20ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 72.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.01ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 70.4MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 273.32ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 55.8MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.variables.ProgramConst.belongsToSmtTheory()" because "" is null de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.variables.ProgramConst.belongsToSmtTheory()" because "" is null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SMT$ConstOnlyIdentifierTranslator.getSmtIdentifier(Boogie2SMT.java:190) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2025-04-30 10:16:26,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: Cannot invoke "de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.variables.ProgramConst.belongsToSmtTheory()" because "" is null