./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec13_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec13_product24.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89950477a2818e2be847e3014c0e2f9e906834037b4e328723302699ed4d9564 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:03:53,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:03:53,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:03:54,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:03:54,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:03:54,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:03:54,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:03:54,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:03:54,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:03:54,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:03:54,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:03:54,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:03:54,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:03:54,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:03:54,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:03:54,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:03:54,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:03:54,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:03:54,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:03:54,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:03:54,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:03:54,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:03:54,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:03:54,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:03:54,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:03:54,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:03:54,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:03:54,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:03:54,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:03:54,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:03:54,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:03:54,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:03:54,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:03:54,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:03:54,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:03:54,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:03:54,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:03:54,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:03:54,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:03:54,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:03:54,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:03:54,068 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:03:54,082 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:03:54,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:03:54,083 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:03:54,083 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:03:54,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:03:54,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:03:54,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:03:54,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:03:54,085 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:03:54,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:03:54,085 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:03:54,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:03:54,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:03:54,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:03:54,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:03:54,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:03:54,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:03:54,087 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:03:54,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:03:54,087 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:03:54,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:03:54,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:03:54,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:03:54,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:03:54,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:03:54,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:03:54,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:03:54,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:03:54,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:03:54,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:03:54,089 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:03:54,089 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:03:54,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:03:54,090 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:03:54,090 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89950477a2818e2be847e3014c0e2f9e906834037b4e328723302699ed4d9564 [2021-12-15 11:03:54,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:03:54,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:03:54,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:03:54,295 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:03:54,296 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:03:54,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec13_product24.cil.c [2021-12-15 11:03:54,351 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c79ad6a7/e327354ab89c401d8f2354e237da4131/FLAG520b42874 [2021-12-15 11:03:54,848 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:03:54,849 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product24.cil.c [2021-12-15 11:03:54,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c79ad6a7/e327354ab89c401d8f2354e237da4131/FLAG520b42874 [2021-12-15 11:03:55,375 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c79ad6a7/e327354ab89c401d8f2354e237da4131 [2021-12-15 11:03:55,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:03:55,378 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:03:55,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:03:55,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:03:55,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:03:55,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:03:55" (1/1) ... [2021-12-15 11:03:55,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3922e8e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:55, skipping insertion in model container [2021-12-15 11:03:55,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:03:55" (1/1) ... [2021-12-15 11:03:55,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:03:55,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:03:55,749 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/product-lines/elevator_spec13_product24.cil.c[51490,51503] [2021-12-15 11:03:55,780 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:03:55,787 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:03:55,858 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/product-lines/elevator_spec13_product24.cil.c[51490,51503] [2021-12-15 11:03:55,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:03:55,884 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:03:55,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:55 WrapperNode [2021-12-15 11:03:55,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:03:55,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:03:55,886 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:03:55,886 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:03:55,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:55" (1/1) ... [2021-12-15 11:03:55,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:55" (1/1) ... [2021-12-15 11:03:55,949 INFO L137 Inliner]: procedures = 96, calls = 352, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 894 [2021-12-15 11:03:55,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:03:55,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:03:55,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:03:55,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:03:55,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:55" (1/1) ... [2021-12-15 11:03:55,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:55" (1/1) ... [2021-12-15 11:03:55,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:55" (1/1) ... [2021-12-15 11:03:55,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:55" (1/1) ... [2021-12-15 11:03:55,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:55" (1/1) ... [2021-12-15 11:03:55,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:55" (1/1) ... [2021-12-15 11:03:55,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:55" (1/1) ... [2021-12-15 11:03:55,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:03:55,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:03:55,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:03:55,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:03:56,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:55" (1/1) ... [2021-12-15 11:03:56,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:03:56,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:03:56,048 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 11:03:56,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 11:03:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2021-12-15 11:03:56,076 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2021-12-15 11:03:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:03:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2021-12-15 11:03:56,077 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2021-12-15 11:03:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2021-12-15 11:03:56,077 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2021-12-15 11:03:56,078 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2021-12-15 11:03:56,078 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2021-12-15 11:03:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2021-12-15 11:03:56,079 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2021-12-15 11:03:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2021-12-15 11:03:56,079 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2021-12-15 11:03:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2021-12-15 11:03:56,079 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2021-12-15 11:03:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2021-12-15 11:03:56,080 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2021-12-15 11:03:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2021-12-15 11:03:56,080 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2021-12-15 11:03:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2021-12-15 11:03:56,080 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2021-12-15 11:03:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:03:56,080 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:03:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:03:56,081 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:03:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-12-15 11:03:56,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-12-15 11:03:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2021-12-15 11:03:56,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2021-12-15 11:03:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2021-12-15 11:03:56,081 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2021-12-15 11:03:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2021-12-15 11:03:56,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2021-12-15 11:03:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2021-12-15 11:03:56,082 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2021-12-15 11:03:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2021-12-15 11:03:56,082 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2021-12-15 11:03:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2021-12-15 11:03:56,083 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2021-12-15 11:03:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2021-12-15 11:03:56,083 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2021-12-15 11:03:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2021-12-15 11:03:56,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2021-12-15 11:03:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2021-12-15 11:03:56,083 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2021-12-15 11:03:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:03:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2021-12-15 11:03:56,084 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2021-12-15 11:03:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2021-12-15 11:03:56,084 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2021-12-15 11:03:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2021-12-15 11:03:56,084 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2021-12-15 11:03:56,085 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2021-12-15 11:03:56,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2021-12-15 11:03:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2021-12-15 11:03:56,086 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2021-12-15 11:03:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:03:56,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:03:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2021-12-15 11:03:56,087 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2021-12-15 11:03:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2021-12-15 11:03:56,087 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2021-12-15 11:03:56,187 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:03:56,189 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:03:56,982 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:03:56,992 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:03:56,992 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-15 11:03:56,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:03:56 BoogieIcfgContainer [2021-12-15 11:03:56,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:03:56,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:03:56,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:03:56,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:03:56,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:03:55" (1/3) ... [2021-12-15 11:03:56,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a1736d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:03:56, skipping insertion in model container [2021-12-15 11:03:57,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:03:55" (2/3) ... [2021-12-15 11:03:57,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a1736d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:03:57, skipping insertion in model container [2021-12-15 11:03:57,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:03:56" (3/3) ... [2021-12-15 11:03:57,001 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product24.cil.c [2021-12-15 11:03:57,007 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:03:57,007 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:03:57,049 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:03:57,053 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 11:03:57,053 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:03:57,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 628 states, 487 states have (on average 1.6714579055441479) internal successors, (814), 507 states have internal predecessors, (814), 110 states have call successors, (110), 29 states have call predecessors, (110), 29 states have return successors, (110), 106 states have call predecessors, (110), 110 states have call successors, (110) [2021-12-15 11:03:57,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 11:03:57,103 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:03:57,104 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:03:57,104 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:03:57,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:03:57,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1869945943, now seen corresponding path program 1 times [2021-12-15 11:03:57,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:03:57,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654802704] [2021-12-15 11:03:57,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:03:57,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:03:57,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:03:57,188 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 11:03:57,195 INFO L158 Benchmark]: Toolchain (without parser) took 1816.41ms. Allocated memory was 90.2MB in the beginning and 134.2MB in the end (delta: 44.0MB). Free memory was 58.0MB in the beginning and 100.3MB in the end (delta: -42.4MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2021-12-15 11:03:57,196 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory was 49.6MB in the beginning and 49.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:03:57,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.10ms. Allocated memory was 90.2MB in the beginning and 134.2MB in the end (delta: 44.0MB). Free memory was 57.8MB in the beginning and 83.7MB in the end (delta: -25.9MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2021-12-15 11:03:57,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.10ms. Allocated memory is still 134.2MB. Free memory was 82.9MB in the beginning and 78.2MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 11:03:57,197 INFO L158 Benchmark]: Boogie Preprocessor took 48.38ms. Allocated memory is still 134.2MB. Free memory was 78.2MB in the beginning and 72.4MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 11:03:57,198 INFO L158 Benchmark]: RCFGBuilder took 994.92ms. Allocated memory is still 134.2MB. Free memory was 72.4MB in the beginning and 66.2MB in the end (delta: 6.2MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2021-12-15 11:03:57,198 INFO L158 Benchmark]: TraceAbstraction took 197.84ms. Allocated memory is still 134.2MB. Free memory was 66.2MB in the beginning and 100.3MB in the end (delta: -34.1MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2021-12-15 11:03:57,201 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory was 49.6MB in the beginning and 49.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 506.10ms. Allocated memory was 90.2MB in the beginning and 134.2MB in the end (delta: 44.0MB). Free memory was 57.8MB in the beginning and 83.7MB in the end (delta: -25.9MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.10ms. Allocated memory is still 134.2MB. Free memory was 82.9MB in the beginning and 78.2MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.38ms. Allocated memory is still 134.2MB. Free memory was 78.2MB in the beginning and 72.4MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 994.92ms. Allocated memory is still 134.2MB. Free memory was 72.4MB in the beginning and 66.2MB in the end (delta: 6.2MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. * TraceAbstraction took 197.84ms. Allocated memory is still 134.2MB. Free memory was 66.2MB in the beginning and 100.3MB in the end (delta: -34.1MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 11:03:57,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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: /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/product-lines/elevator_spec13_product24.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89950477a2818e2be847e3014c0e2f9e906834037b4e328723302699ed4d9564 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:03:58,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:03:58,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:03:58,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:03:58,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:03:58,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:03:58,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:03:58,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:03:58,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:03:58,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:03:58,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:03:58,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:03:58,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:03:58,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:03:58,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:03:58,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:03:58,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:03:58,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:03:58,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:03:58,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:03:58,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:03:58,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:03:58,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:03:58,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:03:58,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:03:58,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:03:58,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:03:58,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:03:58,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:03:58,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:03:58,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:03:58,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:03:58,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:03:58,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:03:58,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:03:58,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:03:58,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:03:58,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:03:58,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:03:58,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:03:58,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:03:58,949 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:03:58,969 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:03:58,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:03:58,970 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:03:58,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:03:58,971 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:03:58,971 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:03:58,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:03:58,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:03:58,972 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:03:58,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:03:58,973 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:03:58,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:03:58,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:03:58,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:03:58,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:03:58,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:03:58,974 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:03:58,974 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:03:58,974 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:03:58,974 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:03:58,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:03:58,975 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:03:58,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:03:58,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:03:58,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:03:58,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:03:58,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:03:58,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:03:58,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:03:58,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:03:58,984 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:03:58,985 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:03:58,985 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:03:58,985 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:03:58,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:03:58,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:03:58,985 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:03:58,986 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89950477a2818e2be847e3014c0e2f9e906834037b4e328723302699ed4d9564 [2021-12-15 11:03:59,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:03:59,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:03:59,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:03:59,255 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:03:59,256 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:03:59,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec13_product24.cil.c [2021-12-15 11:03:59,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcf3c8d92/28167250debd46a2b3ae1e2390445019/FLAGb19f02a4a [2021-12-15 11:03:59,788 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:03:59,788 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product24.cil.c [2021-12-15 11:03:59,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcf3c8d92/28167250debd46a2b3ae1e2390445019/FLAGb19f02a4a [2021-12-15 11:04:00,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcf3c8d92/28167250debd46a2b3ae1e2390445019 [2021-12-15 11:04:00,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:04:00,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:04:00,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:04:00,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:04:00,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:04:00,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:04:00" (1/1) ... [2021-12-15 11:04:00,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f7eb2bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:00, skipping insertion in model container [2021-12-15 11:04:00,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:04:00" (1/1) ... [2021-12-15 11:04:00,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:04:00,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:04:00,772 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/product-lines/elevator_spec13_product24.cil.c[51490,51503] [2021-12-15 11:04:00,806 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:04:00,821 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 11:04:00,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:04:00,905 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/product-lines/elevator_spec13_product24.cil.c[51490,51503] [2021-12-15 11:04:00,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:04:00,923 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:04:00,982 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/product-lines/elevator_spec13_product24.cil.c[51490,51503] [2021-12-15 11:04:00,996 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:04:01,015 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:04:01,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:01 WrapperNode [2021-12-15 11:04:01,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:04:01,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:04:01,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:04:01,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:04:01,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:01" (1/1) ... [2021-12-15 11:04:01,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:01" (1/1) ... [2021-12-15 11:04:01,075 INFO L137 Inliner]: procedures = 98, calls = 352, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 835 [2021-12-15 11:04:01,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:04:01,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:04:01,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:04:01,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:04:01,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:01" (1/1) ... [2021-12-15 11:04:01,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:01" (1/1) ... [2021-12-15 11:04:01,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:01" (1/1) ... [2021-12-15 11:04:01,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:01" (1/1) ... [2021-12-15 11:04:01,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:01" (1/1) ... [2021-12-15 11:04:01,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:01" (1/1) ... [2021-12-15 11:04:01,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:01" (1/1) ... [2021-12-15 11:04:01,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:04:01,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:04:01,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:04:01,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:04:01,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:01" (1/1) ... [2021-12-15 11:04:01,179 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:04:01,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:04:01,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 11:04:01,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 11:04:01,228 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2021-12-15 11:04:01,229 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2021-12-15 11:04:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2021-12-15 11:04:01,229 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2021-12-15 11:04:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2021-12-15 11:04:01,229 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2021-12-15 11:04:01,229 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2021-12-15 11:04:01,229 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2021-12-15 11:04:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:04:01,230 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:04:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2021-12-15 11:04:01,230 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2021-12-15 11:04:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2021-12-15 11:04:01,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2021-12-15 11:04:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2021-12-15 11:04:01,230 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2021-12-15 11:04:01,230 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2021-12-15 11:04:01,231 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2021-12-15 11:04:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2021-12-15 11:04:01,231 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2021-12-15 11:04:01,231 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2021-12-15 11:04:01,231 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2021-12-15 11:04:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2021-12-15 11:04:01,232 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2021-12-15 11:04:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:04:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2021-12-15 11:04:01,232 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2021-12-15 11:04:01,232 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2021-12-15 11:04:01,232 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2021-12-15 11:04:01,233 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2021-12-15 11:04:01,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2021-12-15 11:04:01,233 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2021-12-15 11:04:01,233 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2021-12-15 11:04:01,233 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2021-12-15 11:04:01,233 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2021-12-15 11:04:01,233 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:04:01,234 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:04:01,234 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-12-15 11:04:01,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-12-15 11:04:01,234 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2021-12-15 11:04:01,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2021-12-15 11:04:01,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:04:01,234 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2021-12-15 11:04:01,234 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2021-12-15 11:04:01,235 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2021-12-15 11:04:01,235 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2021-12-15 11:04:01,235 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2021-12-15 11:04:01,236 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2021-12-15 11:04:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2021-12-15 11:04:01,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2021-12-15 11:04:01,237 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2021-12-15 11:04:01,237 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2021-12-15 11:04:01,237 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2021-12-15 11:04:01,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2021-12-15 11:04:01,238 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2021-12-15 11:04:01,238 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2021-12-15 11:04:01,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:04:01,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:04:01,238 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2021-12-15 11:04:01,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2021-12-15 11:04:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2021-12-15 11:04:01,239 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2021-12-15 11:04:01,381 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:04:01,382 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:04:02,303 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:04:02,317 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:04:02,317 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-15 11:04:02,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:04:02 BoogieIcfgContainer [2021-12-15 11:04:02,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:04:02,323 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:04:02,323 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:04:02,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:04:02,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:04:00" (1/3) ... [2021-12-15 11:04:02,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4c9b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:04:02, skipping insertion in model container [2021-12-15 11:04:02,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:01" (2/3) ... [2021-12-15 11:04:02,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4c9b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:04:02, skipping insertion in model container [2021-12-15 11:04:02,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:04:02" (3/3) ... [2021-12-15 11:04:02,329 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product24.cil.c [2021-12-15 11:04:02,332 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:04:02,333 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:04:02,379 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:04:02,386 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 11:04:02,386 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:04:02,419 INFO L276 IsEmpty]: Start isEmpty. Operand has 628 states, 487 states have (on average 1.6714579055441479) internal successors, (814), 507 states have internal predecessors, (814), 110 states have call successors, (110), 29 states have call predecessors, (110), 29 states have return successors, (110), 106 states have call predecessors, (110), 110 states have call successors, (110) [2021-12-15 11:04:02,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 11:04:02,438 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:04:02,439 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:04:02,439 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:04:02,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:04:02,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1869945943, now seen corresponding path program 1 times [2021-12-15 11:04:02,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:04:02,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1880270745] [2021-12-15 11:04:02,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:04:02,456 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:04:02,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:04:02,458 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 11:04:02,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 11:04:02,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 11:04:02,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 11:04:02,736 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 11:04:02,741 INFO L158 Benchmark]: Toolchain (without parser) took 2456.58ms. Allocated memory was 54.5MB in the beginning and 88.1MB in the end (delta: 33.6MB). Free memory was 30.5MB in the beginning and 38.5MB in the end (delta: -8.1MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2021-12-15 11:04:02,741 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 54.5MB. Free memory was 36.7MB in the beginning and 36.6MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:04:02,742 INFO L158 Benchmark]: CACSL2BoogieTranslator took 728.93ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 30.3MB in the beginning and 48.7MB in the end (delta: -18.4MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2021-12-15 11:04:02,742 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.38ms. Allocated memory is still 73.4MB. Free memory was 48.7MB in the beginning and 43.7MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 11:04:02,743 INFO L158 Benchmark]: Boogie Preprocessor took 77.05ms. Allocated memory is still 73.4MB. Free memory was 43.7MB in the beginning and 38.2MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 11:04:02,743 INFO L158 Benchmark]: RCFGBuilder took 1165.50ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 38.2MB in the beginning and 53.4MB in the end (delta: -15.1MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2021-12-15 11:04:02,744 INFO L158 Benchmark]: TraceAbstraction took 416.86ms. Allocated memory is still 88.1MB. Free memory was 52.8MB in the beginning and 38.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 11:04:02,746 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 54.5MB. Free memory was 36.7MB in the beginning and 36.6MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 728.93ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 30.3MB in the beginning and 48.7MB in the end (delta: -18.4MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.38ms. Allocated memory is still 73.4MB. Free memory was 48.7MB in the beginning and 43.7MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.05ms. Allocated memory is still 73.4MB. Free memory was 43.7MB in the beginning and 38.2MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1165.50ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 38.2MB in the beginning and 53.4MB in the end (delta: -15.1MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * TraceAbstraction took 416.86ms. Allocated memory is still 88.1MB. Free memory was 52.8MB in the beginning and 38.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 11:04:02,776 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