./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-ext3-properties/sll_length_check-2.i --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/list-ext3-properties/sll_length_check-2.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.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 0b1cf2dd5b4da09460afcca66f285dbd0591f4fa3369eb070fcfcc2c1d99d315 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:47:25,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:47:25,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:47:25,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:47:25,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:47:25,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:47:25,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:47:25,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:47:25,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:47:25,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:47:25,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:47:25,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:47:25,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:47:25,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:47:25,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:47:25,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:47:25,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:47:25,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:47:25,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:47:25,529 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:47:25,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:47:25,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:47:25,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:47:25,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:47:25,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:47:25,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:47:25,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:47:25,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:47:25,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:47:25,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:47:25,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:47:25,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:47:25,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:47:25,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:47:25,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:47:25,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:47:25,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:47:25,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:47:25,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:47:25,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:47:25,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:47:25,544 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:47:25,557 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:47:25,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:47:25,558 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:47:25,558 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:47:25,558 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:47:25,559 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:47:25,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:47:25,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:47:25,559 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:47:25,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:47:25,560 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:47:25,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:47:25,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:47:25,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:47:25,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:47:25,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:47:25,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:47:25,561 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:47:25,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:47:25,561 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:47:25,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:47:25,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:47:25,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:47:25,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:47:25,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:47:25,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:47:25,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:47:25,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:47:25,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:47:25,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:47:25,563 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:47:25,563 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:47:25,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:47:25,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:47:25,564 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b1cf2dd5b4da09460afcca66f285dbd0591f4fa3369eb070fcfcc2c1d99d315 [2021-12-15 10:47:25,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:47:25,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:47:25,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:47:25,749 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:47:25,749 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:47:25,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext3-properties/sll_length_check-2.i [2021-12-15 10:47:25,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0cdc5248/c4f291655fc940149bbf50104bfca515/FLAG2d665672c [2021-12-15 10:47:26,184 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:47:26,187 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_length_check-2.i [2021-12-15 10:47:26,194 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0cdc5248/c4f291655fc940149bbf50104bfca515/FLAG2d665672c [2021-12-15 10:47:26,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0cdc5248/c4f291655fc940149bbf50104bfca515 [2021-12-15 10:47:26,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:47:26,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:47:26,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:47:26,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:47:26,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:47:26,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:47:26" (1/1) ... [2021-12-15 10:47:26,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35bfe900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:26, skipping insertion in model container [2021-12-15 10:47:26,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:47:26" (1/1) ... [2021-12-15 10:47:26,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:47:26,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:47:26,428 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/list-ext3-properties/sll_length_check-2.i[23814,23827] [2021-12-15 10:47:26,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:47:26,439 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:47:26,483 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/list-ext3-properties/sll_length_check-2.i[23814,23827] [2021-12-15 10:47:26,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:47:26,514 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:47:26,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:26 WrapperNode [2021-12-15 10:47:26,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:47:26,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:47:26,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:47:26,517 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:47:26,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:26" (1/1) ... [2021-12-15 10:47:26,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:26" (1/1) ... [2021-12-15 10:47:26,555 INFO L137 Inliner]: procedures = 125, calls = 15, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 87 [2021-12-15 10:47:26,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:47:26,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:47:26,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:47:26,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:47:26,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:26" (1/1) ... [2021-12-15 10:47:26,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:26" (1/1) ... [2021-12-15 10:47:26,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:26" (1/1) ... [2021-12-15 10:47:26,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:26" (1/1) ... [2021-12-15 10:47:26,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:26" (1/1) ... [2021-12-15 10:47:26,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:26" (1/1) ... [2021-12-15 10:47:26,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:26" (1/1) ... [2021-12-15 10:47:26,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:47:26,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:47:26,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:47:26,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:47:26,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:26" (1/1) ... [2021-12-15 10:47:26,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:47:26,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:47:26,606 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 10:47:26,607 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 10:47:26,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 10:47:26,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:47:26,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 10:47:26,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 10:47:26,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:47:26,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:47:26,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:47:26,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:47:26,702 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:47:26,703 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:47:26,713 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder 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.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) 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:167) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 10:47:26,716 INFO L158 Benchmark]: Toolchain (without parser) took 510.68ms. Allocated memory is still 113.2MB. Free memory was 81.7MB in the beginning and 73.9MB in the end (delta: 7.8MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2021-12-15 10:47:26,717 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 81.8MB. Free memory was 54.3MB in the beginning and 54.2MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:47:26,717 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.04ms. Allocated memory is still 113.2MB. Free memory was 81.2MB in the beginning and 84.4MB in the end (delta: -3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 10:47:26,718 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.47ms. Allocated memory is still 113.2MB. Free memory was 84.4MB in the beginning and 82.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:47:26,718 INFO L158 Benchmark]: Boogie Preprocessor took 20.21ms. Allocated memory is still 113.2MB. Free memory was 82.3MB in the beginning and 80.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:47:26,719 INFO L158 Benchmark]: RCFGBuilder took 138.38ms. Allocated memory is still 113.2MB. Free memory was 80.8MB in the beginning and 73.9MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 10:47:26,721 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 81.8MB. Free memory was 54.3MB in the beginning and 54.2MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.04ms. Allocated memory is still 113.2MB. Free memory was 81.2MB in the beginning and 84.4MB in the end (delta: -3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.47ms. Allocated memory is still 113.2MB. Free memory was 84.4MB in the beginning and 82.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.21ms. Allocated memory is still 113.2MB. Free memory was 82.3MB in the beginning and 80.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 138.38ms. Allocated memory is still 113.2MB. Free memory was 80.8MB in the beginning and 73.9MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: 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 10:47:26,757 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/list-ext3-properties/sll_length_check-2.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.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 0b1cf2dd5b4da09460afcca66f285dbd0591f4fa3369eb070fcfcc2c1d99d315 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:47:28,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:47:28,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:47:28,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:47:28,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:47:28,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:47:28,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:47:28,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:47:28,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:47:28,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:47:28,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:47:28,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:47:28,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:47:28,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:47:28,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:47:28,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:47:28,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:47:28,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:47:28,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:47:28,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:47:28,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:47:28,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:47:28,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:47:28,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:47:28,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:47:28,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:47:28,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:47:28,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:47:28,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:47:28,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:47:28,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:47:28,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:47:28,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:47:28,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:47:28,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:47:28,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:47:28,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:47:28,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:47:28,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:47:28,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:47:28,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:47:28,484 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:47:28,518 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:47:28,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:47:28,519 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:47:28,519 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:47:28,520 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:47:28,520 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:47:28,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:47:28,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:47:28,521 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:47:28,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:47:28,522 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:47:28,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:47:28,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:47:28,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:47:28,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:47:28,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:47:28,523 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:47:28,523 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:47:28,523 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:47:28,524 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:47:28,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:47:28,524 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:47:28,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:47:28,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:47:28,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:47:28,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:47:28,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:47:28,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:47:28,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:47:28,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:47:28,525 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:47:28,526 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:47:28,526 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:47:28,526 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:47:28,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:47:28,526 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:47:28,527 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:47:28,527 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b1cf2dd5b4da09460afcca66f285dbd0591f4fa3369eb070fcfcc2c1d99d315 [2021-12-15 10:47:28,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:47:28,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:47:28,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:47:28,818 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:47:28,827 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:47:28,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext3-properties/sll_length_check-2.i [2021-12-15 10:47:28,869 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cab2e738d/2939f7fdf82443af81f298eb69893d26/FLAGb2f7442e0 [2021-12-15 10:47:29,282 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:47:29,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/sll_length_check-2.i [2021-12-15 10:47:29,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cab2e738d/2939f7fdf82443af81f298eb69893d26/FLAGb2f7442e0 [2021-12-15 10:47:29,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cab2e738d/2939f7fdf82443af81f298eb69893d26 [2021-12-15 10:47:29,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:47:29,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:47:29,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:47:29,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:47:29,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:47:29,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34990657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29, skipping insertion in model container [2021-12-15 10:47:29,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:47:29,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:47:29,585 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/list-ext3-properties/sll_length_check-2.i[23814,23827] [2021-12-15 10:47:29,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:47:29,602 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:47:29,631 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/list-ext3-properties/sll_length_check-2.i[23814,23827] [2021-12-15 10:47:29,632 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:47:29,650 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:47:29,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29 WrapperNode [2021-12-15 10:47:29,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:47:29,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:47:29,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:47:29,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:47:29,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,685 INFO L137 Inliner]: procedures = 126, calls = 15, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 81 [2021-12-15 10:47:29,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:47:29,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:47:29,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:47:29,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:47:29,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:47:29,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:47:29,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:47:29,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:47:29,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:47:29" (1/1) ... [2021-12-15 10:47:29,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:47:29,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:47:29,761 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 10:47:29,763 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 10:47:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 10:47:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:47:29,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 10:47:29,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 10:47:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:47:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:47:29,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:47:29,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:47:29,859 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:47:29,860 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:47:29,871 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder 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.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) 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:167) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 10:47:29,876 INFO L158 Benchmark]: Toolchain (without parser) took 567.87ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 28.9MB in the beginning and 34.3MB in the end (delta: -5.5MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2021-12-15 10:47:29,876 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 52.4MB. Free memory was 34.3MB in the beginning and 34.3MB in the end (delta: 33.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:47:29,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.52ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 28.7MB in the beginning and 45.1MB in the end (delta: -16.4MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2021-12-15 10:47:29,888 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.59ms. Allocated memory is still 69.2MB. Free memory was 44.9MB in the beginning and 43.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:47:29,888 INFO L158 Benchmark]: Boogie Preprocessor took 43.86ms. Allocated memory is still 69.2MB. Free memory was 43.0MB in the beginning and 41.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:47:29,889 INFO L158 Benchmark]: RCFGBuilder took 135.84ms. Allocated memory is still 69.2MB. Free memory was 41.4MB in the beginning and 34.3MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 10:47:29,891 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 52.4MB. Free memory was 34.3MB in the beginning and 34.3MB in the end (delta: 33.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.52ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 28.7MB in the beginning and 45.1MB in the end (delta: -16.4MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.59ms. Allocated memory is still 69.2MB. Free memory was 44.9MB in the beginning and 43.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.86ms. Allocated memory is still 69.2MB. Free memory was 43.0MB in the beginning and 41.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 135.84ms. Allocated memory is still 69.2MB. Free memory was 41.4MB in the beginning and 34.3MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: 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 10:47:29,930 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