./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec3_product17.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_spec3_product17.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 c169527384ebd2beb44494ef6b1cbc32334198d2b76d2236e6ced79c84ed026c --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:04:44,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:04:44,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:04:44,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:04:44,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:04:44,784 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:04:44,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:04:44,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:04:44,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:04:44,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:04:44,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:04:44,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:04:44,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:04:44,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:04:44,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:04:44,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:04:44,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:04:44,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:04:44,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:04:44,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:04:44,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:04:44,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:04:44,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:04:44,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:04:44,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:04:44,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:04:44,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:04:44,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:04:44,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:04:44,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:04:44,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:04:44,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:04:44,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:04:44,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:04:44,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:04:44,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:04:44,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:04:44,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:04:44,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:04:44,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:04:44,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:04:44,831 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:04:44,864 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:04:44,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:04:44,866 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:04:44,866 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:04:44,867 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:04:44,867 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:04:44,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:04:44,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:04:44,868 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:04:44,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:04:44,869 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:04:44,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:04:44,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:04:44,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:04:44,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:04:44,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:04:44,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:04:44,870 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:04:44,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:04:44,871 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:04:44,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:04:44,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:04:44,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:04:44,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:04:44,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:04:44,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:04:44,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:04:44,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:04:44,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:04:44,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:04:44,873 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:04:44,873 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:04:44,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:04:44,873 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:04:44,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c169527384ebd2beb44494ef6b1cbc32334198d2b76d2236e6ced79c84ed026c [2021-12-15 11:04:45,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:04:45,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:04:45,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:04:45,121 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:04:45,122 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:04:45,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product17.cil.c [2021-12-15 11:04:45,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3bbb7bb6/68c9e5ee353c4b0f80878cd55726b214/FLAG9d7e036f0 [2021-12-15 11:04:45,699 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:04:45,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product17.cil.c [2021-12-15 11:04:45,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3bbb7bb6/68c9e5ee353c4b0f80878cd55726b214/FLAG9d7e036f0 [2021-12-15 11:04:46,220 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3bbb7bb6/68c9e5ee353c4b0f80878cd55726b214 [2021-12-15 11:04:46,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:04:46,223 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:04:46,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:04:46,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:04:46,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:04:46,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:04:46" (1/1) ... [2021-12-15 11:04:46,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71866fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:46, skipping insertion in model container [2021-12-15 11:04:46,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:04:46" (1/1) ... [2021-12-15 11:04:46,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:04:46,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:04:46,497 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_spec3_product17.cil.c[5770,5783] [2021-12-15 11:04:46,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:04:46,730 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:04:46,752 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_spec3_product17.cil.c[5770,5783] [2021-12-15 11:04:46,858 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:04:46,884 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:04:46,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:46 WrapperNode [2021-12-15 11:04:46,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:04:46,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:04:46,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:04:46,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:04:46,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:46" (1/1) ... [2021-12-15 11:04:46,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:46" (1/1) ... [2021-12-15 11:04:46,971 INFO L137 Inliner]: procedures = 88, calls = 338, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 798 [2021-12-15 11:04:46,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:04:46,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:04:46,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:04:46,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:04:46,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:46" (1/1) ... [2021-12-15 11:04:46,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:46" (1/1) ... [2021-12-15 11:04:47,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:46" (1/1) ... [2021-12-15 11:04:47,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:46" (1/1) ... [2021-12-15 11:04:47,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:46" (1/1) ... [2021-12-15 11:04:47,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:46" (1/1) ... [2021-12-15 11:04:47,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:46" (1/1) ... [2021-12-15 11:04:47,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:04:47,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:04:47,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:04:47,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:04:47,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:46" (1/1) ... [2021-12-15 11:04:47,058 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:04:47,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:04:47,102 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 11:04:47,125 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 11:04:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:04:47,140 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2021-12-15 11:04:47,140 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2021-12-15 11:04:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2021-12-15 11:04:47,141 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2021-12-15 11:04:47,141 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2021-12-15 11:04:47,141 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2021-12-15 11:04:47,142 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2021-12-15 11:04:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2021-12-15 11:04:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2021-12-15 11:04:47,143 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2021-12-15 11:04:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2021-12-15 11:04:47,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2021-12-15 11:04:47,143 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:04:47,143 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:04:47,144 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:04:47,144 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:04:47,144 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-12-15 11:04:47,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-12-15 11:04:47,144 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2021-12-15 11:04:47,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2021-12-15 11:04:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2021-12-15 11:04:47,145 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2021-12-15 11:04:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2021-12-15 11:04:47,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2021-12-15 11:04:47,145 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2021-12-15 11:04:47,145 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2021-12-15 11:04:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2021-12-15 11:04:47,146 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2021-12-15 11:04:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2021-12-15 11:04:47,146 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2021-12-15 11:04:47,146 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2021-12-15 11:04:47,146 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2021-12-15 11:04:47,147 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2021-12-15 11:04:47,147 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2021-12-15 11:04:47,147 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2021-12-15 11:04:47,147 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2021-12-15 11:04:47,147 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2021-12-15 11:04:47,148 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2021-12-15 11:04:47,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:04:47,148 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2021-12-15 11:04:47,148 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2021-12-15 11:04:47,148 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2021-12-15 11:04:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2021-12-15 11:04:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2021-12-15 11:04:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2021-12-15 11:04:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2021-12-15 11:04:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2021-12-15 11:04:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:04:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:04:47,150 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2021-12-15 11:04:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2021-12-15 11:04:47,324 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:04:47,337 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:04:48,079 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:04:48,096 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:04:48,096 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 11:04:48,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:04:48 BoogieIcfgContainer [2021-12-15 11:04:48,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:04:48,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:04:48,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:04:48,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:04:48,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:04:46" (1/3) ... [2021-12-15 11:04:48,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2308731c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:04:48, skipping insertion in model container [2021-12-15 11:04:48,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:46" (2/3) ... [2021-12-15 11:04:48,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2308731c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:04:48, skipping insertion in model container [2021-12-15 11:04:48,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:04:48" (3/3) ... [2021-12-15 11:04:48,106 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product17.cil.c [2021-12-15 11:04:48,111 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:04:48,111 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:04:48,171 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:04:48,181 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 11:04:48,181 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:04:48,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 561 states, 435 states have (on average 1.6873563218390804) internal successors, (734), 453 states have internal predecessors, (734), 100 states have call successors, (100), 24 states have call predecessors, (100), 24 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2021-12-15 11:04:48,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-15 11:04:48,244 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:04:48,245 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:48,245 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:04:48,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:04:48,251 INFO L85 PathProgramCache]: Analyzing trace with hash 2072698757, now seen corresponding path program 1 times [2021-12-15 11:04:48,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:04:48,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399483914] [2021-12-15 11:04:48,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:04:48,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:04:48,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:04:48,316 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 11:04:48,325 INFO L158 Benchmark]: Toolchain (without parser) took 2100.31ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 54.7MB in the beginning and 58.3MB in the end (delta: -3.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 11:04:48,326 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 90.2MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:04:48,327 INFO L158 Benchmark]: CACSL2BoogieTranslator took 661.09ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 54.5MB in the beginning and 56.9MB in the end (delta: -2.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 11:04:48,327 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.66ms. Allocated memory is still 109.1MB. Free memory was 56.9MB in the beginning and 51.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 11:04:48,328 INFO L158 Benchmark]: Boogie Preprocessor took 67.07ms. Allocated memory is still 109.1MB. Free memory was 51.7MB in the beginning and 46.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 11:04:48,330 INFO L158 Benchmark]: RCFGBuilder took 1058.90ms. Allocated memory is still 109.1MB. Free memory was 46.9MB in the beginning and 72.3MB in the end (delta: -25.3MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2021-12-15 11:04:48,331 INFO L158 Benchmark]: TraceAbstraction took 222.68ms. Allocated memory is still 109.1MB. Free memory was 71.6MB in the beginning and 58.3MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 11:04:48,336 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 90.2MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 661.09ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 54.5MB in the beginning and 56.9MB in the end (delta: -2.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.66ms. Allocated memory is still 109.1MB. Free memory was 56.9MB in the beginning and 51.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.07ms. Allocated memory is still 109.1MB. Free memory was 51.7MB in the beginning and 46.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1058.90ms. Allocated memory is still 109.1MB. Free memory was 46.9MB in the beginning and 72.3MB in the end (delta: -25.3MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * TraceAbstraction took 222.68ms. Allocated memory is still 109.1MB. Free memory was 71.6MB in the beginning and 58.3MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. 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 11:04:48,373 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/product-lines/elevator_spec3_product17.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 c169527384ebd2beb44494ef6b1cbc32334198d2b76d2236e6ced79c84ed026c --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:04:50,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:04:50,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:04:50,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:04:50,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:04:50,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:04:50,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:04:50,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:04:50,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:04:50,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:04:50,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:04:50,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:04:50,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:04:50,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:04:50,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:04:50,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:04:50,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:04:50,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:04:50,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:04:50,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:04:50,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:04:50,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:04:50,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:04:50,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:04:50,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:04:50,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:04:50,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:04:50,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:04:50,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:04:50,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:04:50,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:04:50,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:04:50,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:04:50,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:04:50,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:04:50,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:04:50,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:04:50,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:04:50,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:04:50,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:04:50,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:04:50,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:04:50,306 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:04:50,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:04:50,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:04:50,306 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:04:50,307 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:04:50,307 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:04:50,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:04:50,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:04:50,308 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:04:50,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:04:50,308 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:04:50,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:04:50,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:04:50,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:04:50,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:04:50,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:04:50,309 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:04:50,309 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:04:50,309 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:04:50,309 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:04:50,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:04:50,310 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:04:50,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:04:50,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:04:50,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:04:50,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:04:50,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:04:50,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:04:50,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:04:50,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:04:50,318 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:04:50,318 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:04:50,318 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:04:50,319 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:04:50,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:04:50,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:04:50,320 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:04:50,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c169527384ebd2beb44494ef6b1cbc32334198d2b76d2236e6ced79c84ed026c [2021-12-15 11:04:50,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:04:50,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:04:50,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:04:50,661 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:04:50,662 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:04:50,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product17.cil.c [2021-12-15 11:04:50,714 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7396886ba/754c84912b11411f8974102a0a95e5d1/FLAGbca5a19e8 [2021-12-15 11:04:51,308 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:04:51,312 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product17.cil.c [2021-12-15 11:04:51,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7396886ba/754c84912b11411f8974102a0a95e5d1/FLAGbca5a19e8 [2021-12-15 11:04:51,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7396886ba/754c84912b11411f8974102a0a95e5d1 [2021-12-15 11:04:51,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:04:51,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:04:51,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:04:51,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:04:51,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:04:51,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:04:51" (1/1) ... [2021-12-15 11:04:51,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17eb4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:51, skipping insertion in model container [2021-12-15 11:04:51,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:04:51" (1/1) ... [2021-12-15 11:04:51,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:04:51,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:04:52,085 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_spec3_product17.cil.c[5770,5783] [2021-12-15 11:04:52,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:04:52,392 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 11:04:52,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:04:52,429 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_spec3_product17.cil.c[5770,5783] [2021-12-15 11:04:52,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:04:52,513 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:04:52,537 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_spec3_product17.cil.c[5770,5783] [2021-12-15 11:04:52,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:04:52,634 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:04:52,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:52 WrapperNode [2021-12-15 11:04:52,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:04:52,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:04:52,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:04:52,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:04:52,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:52" (1/1) ... [2021-12-15 11:04:52,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:52" (1/1) ... [2021-12-15 11:04:52,721 INFO L137 Inliner]: procedures = 90, calls = 338, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 748 [2021-12-15 11:04:52,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:04:52,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:04:52,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:04:52,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:04:52,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:52" (1/1) ... [2021-12-15 11:04:52,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:52" (1/1) ... [2021-12-15 11:04:52,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:52" (1/1) ... [2021-12-15 11:04:52,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:52" (1/1) ... [2021-12-15 11:04:52,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:52" (1/1) ... [2021-12-15 11:04:52,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:52" (1/1) ... [2021-12-15 11:04:52,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:52" (1/1) ... [2021-12-15 11:04:52,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:04:52,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:04:52,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:04:52,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:04:52,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:52" (1/1) ... [2021-12-15 11:04:52,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:04:52,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:04:52,864 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 11:04:52,886 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 11:04:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:04:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2021-12-15 11:04:52,902 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2021-12-15 11:04:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2021-12-15 11:04:52,902 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2021-12-15 11:04:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2021-12-15 11:04:52,902 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2021-12-15 11:04:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2021-12-15 11:04:52,903 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2021-12-15 11:04:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2021-12-15 11:04:52,903 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2021-12-15 11:04:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2021-12-15 11:04:52,903 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2021-12-15 11:04:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:04:52,904 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:04:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:04:52,904 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:04:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-12-15 11:04:52,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-12-15 11:04:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2021-12-15 11:04:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2021-12-15 11:04:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2021-12-15 11:04:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2021-12-15 11:04:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2021-12-15 11:04:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2021-12-15 11:04:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:04:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2021-12-15 11:04:52,906 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2021-12-15 11:04:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2021-12-15 11:04:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2021-12-15 11:04:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2021-12-15 11:04:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2021-12-15 11:04:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2021-12-15 11:04:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2021-12-15 11:04:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2021-12-15 11:04:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2021-12-15 11:04:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2021-12-15 11:04:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2021-12-15 11:04:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2021-12-15 11:04:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2021-12-15 11:04:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2021-12-15 11:04:52,909 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2021-12-15 11:04:52,909 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2021-12-15 11:04:52,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2021-12-15 11:04:52,909 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2021-12-15 11:04:52,910 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2021-12-15 11:04:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2021-12-15 11:04:52,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2021-12-15 11:04:52,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:04:52,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:04:52,912 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2021-12-15 11:04:52,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2021-12-15 11:04:53,103 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:04:53,105 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:04:53,974 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:04:53,989 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:04:53,991 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 11:04:53,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:04:53 BoogieIcfgContainer [2021-12-15 11:04:53,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:04:53,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:04:53,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:04:53,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:04:53,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:04:51" (1/3) ... [2021-12-15 11:04:54,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d0c924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:04:54, skipping insertion in model container [2021-12-15 11:04:54,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:52" (2/3) ... [2021-12-15 11:04:54,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d0c924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:04:54, skipping insertion in model container [2021-12-15 11:04:54,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:04:53" (3/3) ... [2021-12-15 11:04:54,001 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product17.cil.c [2021-12-15 11:04:54,005 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:04:54,006 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:04:54,063 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:04:54,073 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 11:04:54,073 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:04:54,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 561 states, 435 states have (on average 1.6873563218390804) internal successors, (734), 453 states have internal predecessors, (734), 100 states have call successors, (100), 24 states have call predecessors, (100), 24 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2021-12-15 11:04:54,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-15 11:04:54,125 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:04:54,126 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:54,126 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:04:54,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:04:54,130 INFO L85 PathProgramCache]: Analyzing trace with hash 2072698757, now seen corresponding path program 1 times [2021-12-15 11:04:54,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:04:54,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123340806] [2021-12-15 11:04:54,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:04:54,143 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:04:54,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:04:54,149 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 11:04:54,151 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 11:04:54,227 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 11:04:54,423 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 11:04:54,424 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 11:04:54,432 INFO L158 Benchmark]: Toolchain (without parser) took 2685.46ms. Allocated memory was 48.2MB in the beginning and 71.3MB in the end (delta: 23.1MB). Free memory was 31.5MB in the beginning and 35.2MB in the end (delta: -3.7MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2021-12-15 11:04:54,433 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 48.2MB. Free memory was 30.6MB in the beginning and 30.6MB in the end (delta: 31.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:04:54,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 888.30ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 31.3MB in the beginning and 27.8MB in the end (delta: 3.5MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2021-12-15 11:04:54,435 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.24ms. Allocated memory is still 58.7MB. Free memory was 27.8MB in the beginning and 23.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 11:04:54,436 INFO L158 Benchmark]: Boogie Preprocessor took 104.23ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 23.1MB in the beginning and 47.4MB in the end (delta: -24.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:04:54,440 INFO L158 Benchmark]: RCFGBuilder took 1159.27ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 29.9MB in the end (delta: 17.6MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2021-12-15 11:04:54,441 INFO L158 Benchmark]: TraceAbstraction took 433.77ms. Allocated memory is still 71.3MB. Free memory was 29.1MB in the beginning and 35.2MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:04:54,445 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 48.2MB. Free memory was 30.6MB in the beginning and 30.6MB in the end (delta: 31.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 888.30ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 31.3MB in the beginning and 27.8MB in the end (delta: 3.5MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.24ms. Allocated memory is still 58.7MB. Free memory was 27.8MB in the beginning and 23.1MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 104.23ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 23.1MB in the beginning and 47.4MB in the end (delta: -24.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1159.27ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 29.9MB in the end (delta: 17.6MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * TraceAbstraction took 433.77ms. Allocated memory is still 71.3MB. Free memory was 29.1MB in the beginning and 35.2MB in the end (delta: -6.1MB). There was no memory consumed. 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 11:04:54,484 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