./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec3_product25.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_product25.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 7dffe766d259411d55a5393012f150d80e63eb09c0b69cb40e513f715e96f78e --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:04:49,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:04:49,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:04:49,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:04:49,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:04:49,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:04:49,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:04:49,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:04:49,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:04:49,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:04:49,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:04:49,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:04:49,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:04:49,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:04:49,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:04:49,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:04:49,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:04:49,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:04:49,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:04:49,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:04:49,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:04:49,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:04:49,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:04:49,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:04:49,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:04:49,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:04:49,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:04:49,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:04:49,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:04:49,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:04:49,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:04:49,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:04:49,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:04:49,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:04:49,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:04:49,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:04:49,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:04:49,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:04:49,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:04:49,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:04:49,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:04:49,198 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:04:49,221 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:04:49,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:04:49,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:04:49,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:04:49,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:04:49,227 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:04:49,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:04:49,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:04:49,228 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:04:49,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:04:49,228 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:04:49,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:04:49,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:04:49,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:04:49,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:04:49,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:04:49,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:04:49,229 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:04:49,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:04:49,230 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:04:49,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:04:49,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:04:49,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:04:49,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:04:49,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:04:49,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:04:49,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:04:49,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:04:49,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:04:49,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:04:49,233 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:04:49,233 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:04:49,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:04:49,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:04:49,234 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dffe766d259411d55a5393012f150d80e63eb09c0b69cb40e513f715e96f78e [2021-12-15 11:04:49,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:04:49,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:04:49,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:04:49,462 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:04:49,463 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:04:49,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product25.cil.c [2021-12-15 11:04:49,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f224d6dc9/113ae032370548e79f8722b146528ddf/FLAG9bb5a5366 [2021-12-15 11:04:49,949 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:04:49,950 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product25.cil.c [2021-12-15 11:04:49,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f224d6dc9/113ae032370548e79f8722b146528ddf/FLAG9bb5a5366 [2021-12-15 11:04:50,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f224d6dc9/113ae032370548e79f8722b146528ddf [2021-12-15 11:04:50,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:04:50,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:04:50,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:04:50,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:04:50,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:04:50,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:04:50" (1/1) ... [2021-12-15 11:04:50,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8122fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:50, skipping insertion in model container [2021-12-15 11:04:50,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:04:50" (1/1) ... [2021-12-15 11:04:50,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:04:50,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:04:50,555 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_product25.cil.c[27637,27650] [2021-12-15 11:04:50,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:04:50,668 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:04:50,699 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_product25.cil.c[27637,27650] [2021-12-15 11:04:50,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:04:50,786 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:04:50,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:50 WrapperNode [2021-12-15 11:04:50,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:04:50,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:04:50,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:04:50,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:04:50,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:50" (1/1) ... [2021-12-15 11:04:50,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:50" (1/1) ... [2021-12-15 11:04:50,849 INFO L137 Inliner]: procedures = 89, calls = 340, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 842 [2021-12-15 11:04:50,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:04:50,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:04:50,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:04:50,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:04:50,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:50" (1/1) ... [2021-12-15 11:04:50,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:50" (1/1) ... [2021-12-15 11:04:50,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:50" (1/1) ... [2021-12-15 11:04:50,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:50" (1/1) ... [2021-12-15 11:04:50,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:50" (1/1) ... [2021-12-15 11:04:50,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:50" (1/1) ... [2021-12-15 11:04:50,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:50" (1/1) ... [2021-12-15 11:04:50,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:04:50,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:04:50,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:04:50,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:04:50,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:50" (1/1) ... [2021-12-15 11:04:50,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:04:50,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:04:50,952 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 11:04:50,969 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 11:04:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:04:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2021-12-15 11:04:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2021-12-15 11:04:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2021-12-15 11:04:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2021-12-15 11:04:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2021-12-15 11:04:50,981 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2021-12-15 11:04:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2021-12-15 11:04:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2021-12-15 11:04:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2021-12-15 11:04:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2021-12-15 11:04:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2021-12-15 11:04:50,983 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2021-12-15 11:04:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:04:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:04:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:04:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:04:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-12-15 11:04:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-12-15 11:04:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2021-12-15 11:04:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2021-12-15 11:04:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2021-12-15 11:04:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2021-12-15 11:04:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2021-12-15 11:04:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2021-12-15 11:04:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2021-12-15 11:04:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2021-12-15 11:04:50,985 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2021-12-15 11:04:50,985 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2021-12-15 11:04:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2021-12-15 11:04:50,986 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2021-12-15 11:04:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2021-12-15 11:04:50,986 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2021-12-15 11:04:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2021-12-15 11:04:50,986 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2021-12-15 11:04:50,986 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2021-12-15 11:04:50,987 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2021-12-15 11:04:50,987 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2021-12-15 11:04:50,987 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2021-12-15 11:04:50,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:04:50,987 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2021-12-15 11:04:50,987 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2021-12-15 11:04:50,987 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2021-12-15 11:04:50,988 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2021-12-15 11:04:50,988 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2021-12-15 11:04:50,988 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2021-12-15 11:04:50,988 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2021-12-15 11:04:50,988 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2021-12-15 11:04:50,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:04:50,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:04:50,989 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2021-12-15 11:04:50,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2021-12-15 11:04:51,114 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:04:51,119 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:04:51,963 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:04:51,976 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:04:51,977 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 11:04:51,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:04:51 BoogieIcfgContainer [2021-12-15 11:04:51,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:04:51,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:04:51,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:04:51,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:04:51,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:04:50" (1/3) ... [2021-12-15 11:04:51,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cedadbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:04:51, skipping insertion in model container [2021-12-15 11:04:51,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:50" (2/3) ... [2021-12-15 11:04:51,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cedadbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:04:51, skipping insertion in model container [2021-12-15 11:04:51,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:04:51" (3/3) ... [2021-12-15 11:04:51,987 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product25.cil.c [2021-12-15 11:04:51,990 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:04:51,991 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:04:52,033 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:04:52,038 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 11:04:52,038 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:04:52,058 INFO L276 IsEmpty]: Start isEmpty. Operand has 570 states, 444 states have (on average 1.6891891891891893) internal successors, (750), 462 states have internal predecessors, (750), 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 11:04:52,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-15 11:04:52,072 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:04:52,073 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 11:04:52,073 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:04:52,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:04:52,077 INFO L85 PathProgramCache]: Analyzing trace with hash 779665332, now seen corresponding path program 1 times [2021-12-15 11:04:52,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:04:52,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667075321] [2021-12-15 11:04:52,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:04:52,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:04:52,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:04:52,128 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 11:04:52,132 INFO L158 Benchmark]: Toolchain (without parser) took 1862.96ms. Allocated memory is still 96.5MB. Free memory was 69.5MB in the beginning and 55.7MB in the end (delta: 13.8MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2021-12-15 11:04:52,132 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory was 48.7MB in the beginning and 48.6MB in the end (delta: 41.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:04:52,133 INFO L158 Benchmark]: CACSL2BoogieTranslator took 517.61ms. Allocated memory is still 96.5MB. Free memory was 69.5MB in the beginning and 70.1MB in the end (delta: -602.8kB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2021-12-15 11:04:52,133 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.13ms. Allocated memory is still 96.5MB. Free memory was 70.1MB in the beginning and 65.1MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 11:04:52,133 INFO L158 Benchmark]: Boogie Preprocessor took 43.10ms. Allocated memory is still 96.5MB. Free memory was 65.1MB in the beginning and 60.0MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 11:04:52,134 INFO L158 Benchmark]: RCFGBuilder took 1087.18ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 36.3MB in the end (delta: 23.7MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2021-12-15 11:04:52,134 INFO L158 Benchmark]: TraceAbstraction took 149.04ms. Allocated memory is still 96.5MB. Free memory was 35.8MB in the beginning and 55.7MB in the end (delta: -19.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:04:52,136 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 77.6MB. Free memory was 48.7MB in the beginning and 48.6MB in the end (delta: 41.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 517.61ms. Allocated memory is still 96.5MB. Free memory was 69.5MB in the beginning and 70.1MB in the end (delta: -602.8kB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.13ms. Allocated memory is still 96.5MB. Free memory was 70.1MB in the beginning and 65.1MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.10ms. Allocated memory is still 96.5MB. Free memory was 65.1MB in the beginning and 60.0MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1087.18ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 36.3MB in the end (delta: 23.7MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * TraceAbstraction took 149.04ms. Allocated memory is still 96.5MB. Free memory was 35.8MB in the beginning and 55.7MB in the end (delta: -19.9MB). 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 11:04:52,160 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_product25.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 7dffe766d259411d55a5393012f150d80e63eb09c0b69cb40e513f715e96f78e --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:04:53,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:04:53,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:04:53,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:04:53,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:04:53,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:04:53,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:04:53,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:04:53,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:04:53,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:04:53,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:04:53,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:04:53,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:04:53,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:04:53,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:04:53,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:04:53,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:04:53,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:04:53,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:04:53,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:04:53,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:04:53,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:04:53,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:04:53,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:04:53,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:04:53,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:04:53,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:04:53,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:04:53,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:04:53,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:04:53,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:04:53,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:04:53,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:04:53,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:04:53,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:04:53,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:04:53,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:04:53,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:04:53,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:04:53,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:04:53,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:04:53,869 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:04:53,898 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:04:53,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:04:53,899 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:04:53,899 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:04:53,900 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:04:53,900 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:04:53,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:04:53,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:04:53,901 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:04:53,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:04:53,902 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:04:53,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:04:53,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:04:53,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:04:53,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:04:53,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:04:53,903 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:04:53,903 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:04:53,903 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:04:53,903 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:04:53,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:04:53,903 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:04:53,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:04:53,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:04:53,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:04:53,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:04:53,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:04:53,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:04:53,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:04:53,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:04:53,909 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:04:53,909 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:04:53,909 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:04:53,909 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:04:53,910 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:04:53,910 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:04:53,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:04:53,910 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dffe766d259411d55a5393012f150d80e63eb09c0b69cb40e513f715e96f78e [2021-12-15 11:04:54,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:04:54,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:04:54,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:04:54,220 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:04:54,221 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:04:54,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product25.cil.c [2021-12-15 11:04:54,289 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d817650f3/403cd94f26a04a0abf65a36381d533c4/FLAG61e903e38 [2021-12-15 11:04:54,792 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:04:54,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product25.cil.c [2021-12-15 11:04:54,817 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d817650f3/403cd94f26a04a0abf65a36381d533c4/FLAG61e903e38 [2021-12-15 11:04:55,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d817650f3/403cd94f26a04a0abf65a36381d533c4 [2021-12-15 11:04:55,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:04:55,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:04:55,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:04:55,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:04:55,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:04:55,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:04:55" (1/1) ... [2021-12-15 11:04:55,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a6dcc7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:55, skipping insertion in model container [2021-12-15 11:04:55,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:04:55" (1/1) ... [2021-12-15 11:04:55,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:04:55,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:04:55,462 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_product25.cil.c[27637,27650] [2021-12-15 11:04:55,620 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:04:55,648 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 11:04:55,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:04:55,717 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_product25.cil.c[27637,27650] [2021-12-15 11:04:55,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:04:55,772 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:04:55,804 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_product25.cil.c[27637,27650] [2021-12-15 11:04:55,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:04:55,878 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:04:55,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:55 WrapperNode [2021-12-15 11:04:55,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:04:55,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:04:55,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:04:55,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:04:55,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:55" (1/1) ... [2021-12-15 11:04:55,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:55" (1/1) ... [2021-12-15 11:04:55,960 INFO L137 Inliner]: procedures = 91, calls = 340, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 791 [2021-12-15 11:04:55,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:04:55,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:04:55,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:04:55,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:04:55,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:55" (1/1) ... [2021-12-15 11:04:55,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:55" (1/1) ... [2021-12-15 11:04:55,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:55" (1/1) ... [2021-12-15 11:04:55,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:55" (1/1) ... [2021-12-15 11:04:55,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:55" (1/1) ... [2021-12-15 11:04:56,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:55" (1/1) ... [2021-12-15 11:04:56,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:55" (1/1) ... [2021-12-15 11:04:56,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:04:56,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:04:56,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:04:56,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:04:56,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:55" (1/1) ... [2021-12-15 11:04:56,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:04:56,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:04:56,057 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 11:04:56,086 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 11:04:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:04:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2021-12-15 11:04:56,097 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2021-12-15 11:04:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2021-12-15 11:04:56,097 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2021-12-15 11:04:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2021-12-15 11:04:56,098 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2021-12-15 11:04:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2021-12-15 11:04:56,098 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2021-12-15 11:04:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2021-12-15 11:04:56,098 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2021-12-15 11:04:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2021-12-15 11:04:56,098 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2021-12-15 11:04:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:04:56,099 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:04:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:04:56,099 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:04:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-12-15 11:04:56,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-12-15 11:04:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2021-12-15 11:04:56,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2021-12-15 11:04:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2021-12-15 11:04:56,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2021-12-15 11:04:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2021-12-15 11:04:56,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2021-12-15 11:04:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:04:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2021-12-15 11:04:56,101 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2021-12-15 11:04:56,101 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2021-12-15 11:04:56,101 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2021-12-15 11:04:56,101 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2021-12-15 11:04:56,102 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2021-12-15 11:04:56,102 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2021-12-15 11:04:56,102 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2021-12-15 11:04:56,103 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2021-12-15 11:04:56,103 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2021-12-15 11:04:56,103 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2021-12-15 11:04:56,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2021-12-15 11:04:56,103 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2021-12-15 11:04:56,103 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2021-12-15 11:04:56,103 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2021-12-15 11:04:56,103 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2021-12-15 11:04:56,103 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2021-12-15 11:04:56,104 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2021-12-15 11:04:56,104 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2021-12-15 11:04:56,104 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2021-12-15 11:04:56,104 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2021-12-15 11:04:56,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2021-12-15 11:04:56,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:04:56,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:04:56,106 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2021-12-15 11:04:56,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2021-12-15 11:04:56,255 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:04:56,257 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:04:57,110 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:04:57,123 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:04:57,123 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 11:04:57,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:04:57 BoogieIcfgContainer [2021-12-15 11:04:57,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:04:57,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:04:57,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:04:57,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:04:57,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:04:55" (1/3) ... [2021-12-15 11:04:57,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b81b88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:04:57, skipping insertion in model container [2021-12-15 11:04:57,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:04:55" (2/3) ... [2021-12-15 11:04:57,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b81b88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:04:57, skipping insertion in model container [2021-12-15 11:04:57,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:04:57" (3/3) ... [2021-12-15 11:04:57,132 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product25.cil.c [2021-12-15 11:04:57,135 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:04:57,136 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:04:57,182 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:04:57,187 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 11:04:57,187 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:04:57,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 570 states, 444 states have (on average 1.6891891891891893) internal successors, (750), 462 states have internal predecessors, (750), 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 11:04:57,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-15 11:04:57,218 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:04:57,219 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 11:04:57,219 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:04:57,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:04:57,226 INFO L85 PathProgramCache]: Analyzing trace with hash 779665332, now seen corresponding path program 1 times [2021-12-15 11:04:57,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:04:57,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518696866] [2021-12-15 11:04:57,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:04:57,247 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:04:57,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:04:57,248 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 11:04:57,256 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 11:04:57,316 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 11:04:57,507 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 11:04:57,508 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 11:04:57,511 INFO L158 Benchmark]: Toolchain (without parser) took 2411.05ms. Allocated memory was 56.6MB in the beginning and 100.7MB in the end (delta: 44.0MB). Free memory was 32.8MB in the beginning and 67.8MB in the end (delta: -35.0MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2021-12-15 11:04:57,511 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory was 39.0MB in the beginning and 38.9MB in the end (delta: 52.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:04:57,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 777.78ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 32.6MB in the beginning and 47.4MB in the end (delta: -14.8MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2021-12-15 11:04:57,512 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.58ms. Allocated memory is still 75.5MB. Free memory was 47.4MB in the beginning and 42.5MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 11:04:57,512 INFO L158 Benchmark]: Boogie Preprocessor took 56.78ms. Allocated memory is still 75.5MB. Free memory was 42.5MB in the beginning and 37.3MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 11:04:57,513 INFO L158 Benchmark]: RCFGBuilder took 1107.93ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 37.3MB in the beginning and 57.6MB in the end (delta: -20.3MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2021-12-15 11:04:57,513 INFO L158 Benchmark]: TraceAbstraction took 382.46ms. Allocated memory is still 100.7MB. Free memory was 57.1MB in the beginning and 67.8MB in the end (delta: -10.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 11:04:57,515 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 56.6MB. Free memory was 39.0MB in the beginning and 38.9MB in the end (delta: 52.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 777.78ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 32.6MB in the beginning and 47.4MB in the end (delta: -14.8MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.58ms. Allocated memory is still 75.5MB. Free memory was 47.4MB in the beginning and 42.5MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.78ms. Allocated memory is still 75.5MB. Free memory was 42.5MB in the beginning and 37.3MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1107.93ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 37.3MB in the beginning and 57.6MB in the end (delta: -20.3MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * TraceAbstraction took 382.46ms. Allocated memory is still 100.7MB. Free memory was 57.1MB in the beginning and 67.8MB in the end (delta: -10.8MB). 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 11:04:57,543 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