./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d96f41c83679efe744540e7fde7918287d6cc79be28bb1ad9b63bf8e0d07ce19 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:46:18,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:46:18,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:46:18,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:46:18,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:46:18,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:46:18,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:46:18,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:46:18,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:46:18,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:46:18,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:46:18,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:46:18,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:46:18,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:46:18,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:46:18,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:46:18,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:46:18,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:46:18,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:46:18,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:46:18,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:46:18,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:46:18,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:46:18,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:46:18,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:46:18,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:46:18,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:46:18,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:46:18,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:46:18,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:46:18,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:46:18,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:46:18,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:46:18,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:46:18,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:46:18,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:46:18,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:46:18,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:46:18,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:46:18,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:46:18,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:46:18,348 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:46:18,375 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:46:18,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:46:18,375 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:46:18,376 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:46:18,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:46:18,376 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:46:18,377 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:46:18,377 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:46:18,377 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:46:18,377 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:46:18,377 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:46:18,378 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:46:18,378 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:46:18,378 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:46:18,378 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:46:18,378 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:46:18,379 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:46:18,379 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:46:18,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:46:18,380 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:46:18,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:46:18,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:46:18,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:46:18,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:46:18,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:46:18,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:46:18,381 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:46:18,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:46:18,381 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:46:18,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:46:18,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:46:18,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:46:18,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:18,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:46:18,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:46:18,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:46:18,383 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:46:18,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:46:18,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:46:18,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:46:18,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:46:18,386 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d96f41c83679efe744540e7fde7918287d6cc79be28bb1ad9b63bf8e0d07ce19 [2021-11-23 16:46:18,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:46:18,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:46:18,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:46:18,684 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:46:18,687 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:46:18,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c [2021-11-23 16:46:18,754 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/data/b9bc819fe/62c1a2bac72e4fa99ecd52125c334858/FLAG03022abe7 [2021-11-23 16:46:19,326 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:46:19,330 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c [2021-11-23 16:46:19,360 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/data/b9bc819fe/62c1a2bac72e4fa99ecd52125c334858/FLAG03022abe7 [2021-11-23 16:46:19,564 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/data/b9bc819fe/62c1a2bac72e4fa99ecd52125c334858 [2021-11-23 16:46:19,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:46:19,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:46:19,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:19,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:46:19,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:46:19,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:19" (1/1) ... [2021-11-23 16:46:19,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d56b4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:19, skipping insertion in model container [2021-11-23 16:46:19,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:19" (1/1) ... [2021-11-23 16:46:19,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:46:19,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:46:20,027 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c[34453,34466] [2021-11-23 16:46:20,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:20,214 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:46:20,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c[34453,34466] [2021-11-23 16:46:20,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:20,378 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:46:20,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:20 WrapperNode [2021-11-23 16:46:20,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:20,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:46:20,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:46:20,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:46:20,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:20" (1/1) ... [2021-11-23 16:46:20,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:20" (1/1) ... [2021-11-23 16:46:20,516 INFO L137 Inliner]: procedures = 94, calls = 340, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 1119 [2021-11-23 16:46:20,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:46:20,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:46:20,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:46:20,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:46:20,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:20" (1/1) ... [2021-11-23 16:46:20,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:20" (1/1) ... [2021-11-23 16:46:20,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:20" (1/1) ... [2021-11-23 16:46:20,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:20" (1/1) ... [2021-11-23 16:46:20,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:20" (1/1) ... [2021-11-23 16:46:20,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:20" (1/1) ... [2021-11-23 16:46:20,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:20" (1/1) ... [2021-11-23 16:46:20,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:46:20,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:46:20,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:46:20,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:46:20,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:20" (1/1) ... [2021-11-23 16:46:20,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:20,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:46:20,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:46:20,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:46:20,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:46:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2021-11-23 16:46:20,724 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2021-11-23 16:46:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2021-11-23 16:46:20,724 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2021-11-23 16:46:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2021-11-23 16:46:20,725 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2021-11-23 16:46:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2021-11-23 16:46:20,725 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2021-11-23 16:46:20,725 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2021-11-23 16:46:20,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2021-11-23 16:46:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2021-11-23 16:46:20,726 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2021-11-23 16:46:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2021-11-23 16:46:20,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2021-11-23 16:46:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 16:46:20,727 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 16:46:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 16:46:20,727 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 16:46:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2021-11-23 16:46:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2021-11-23 16:46:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-11-23 16:46:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-11-23 16:46:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2021-11-23 16:46:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2021-11-23 16:46:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2021-11-23 16:46:20,729 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2021-11-23 16:46:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2021-11-23 16:46:20,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2021-11-23 16:46:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2021-11-23 16:46:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2021-11-23 16:46:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2021-11-23 16:46:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2021-11-23 16:46:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2021-11-23 16:46:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2021-11-23 16:46:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2021-11-23 16:46:20,731 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2021-11-23 16:46:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2021-11-23 16:46:20,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2021-11-23 16:46:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2021-11-23 16:46:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2021-11-23 16:46:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:46:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2021-11-23 16:46:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2021-11-23 16:46:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2021-11-23 16:46:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2021-11-23 16:46:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2021-11-23 16:46:20,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2021-11-23 16:46:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:46:20,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:46:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2021-11-23 16:46:20,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2021-11-23 16:46:20,870 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:46:20,872 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:46:21,769 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:46:21,854 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 16:46:21,859 INFO L158 Benchmark]: Toolchain (without parser) took 2289.91ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 58.1MB in the beginning and 67.3MB in the end (delta: -9.1MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2021-11-23 16:46:21,859 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:46:21,860 INFO L158 Benchmark]: CACSL2BoogieTranslator took 803.29ms. Allocated memory is still 102.8MB. Free memory was 57.9MB in the beginning and 48.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2021-11-23 16:46:21,861 INFO L158 Benchmark]: Boogie Procedure Inliner took 137.87ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 48.6MB in the beginning and 100.2MB in the end (delta: -51.7MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2021-11-23 16:46:21,862 INFO L158 Benchmark]: Boogie Preprocessor took 113.16ms. Allocated memory is still 127.9MB. Free memory was 100.2MB in the beginning and 96.0MB in the end (delta: 4.2MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2021-11-23 16:46:21,862 INFO L158 Benchmark]: RCFGBuilder took 1225.11ms. Allocated memory is still 127.9MB. Free memory was 96.0MB in the beginning and 67.3MB in the end (delta: 28.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2021-11-23 16:46:21,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 803.29ms. Allocated memory is still 102.8MB. Free memory was 57.9MB in the beginning and 48.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 137.87ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 48.6MB in the beginning and 100.2MB in the end (delta: -51.7MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 113.16ms. Allocated memory is still 127.9MB. Free memory was 100.2MB in the beginning and 96.0MB in the end (delta: 4.2MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1225.11ms. Allocated memory is still 127.9MB. Free memory was 96.0MB in the beginning and 67.3MB in the end (delta: 28.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 16:46:21,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/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=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d96f41c83679efe744540e7fde7918287d6cc79be28bb1ad9b63bf8e0d07ce19 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:46:24,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:46:24,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:46:24,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:46:24,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:46:24,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:46:24,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:46:24,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:46:24,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:46:24,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:46:24,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:46:24,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:46:24,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:46:24,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:46:24,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:46:24,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:46:24,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:46:24,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:46:24,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:46:24,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:46:24,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:46:24,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:46:24,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:46:24,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:46:24,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:46:24,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:46:24,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:46:24,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:46:24,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:46:24,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:46:24,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:46:24,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:46:24,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:46:24,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:46:24,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:46:24,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:46:24,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:46:24,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:46:24,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:46:24,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:46:24,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:46:24,427 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:46:24,467 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:46:24,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:46:24,467 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:46:24,468 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:46:24,468 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:46:24,468 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:46:24,469 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:46:24,469 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:46:24,469 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:46:24,469 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:46:24,470 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:46:24,470 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:46:24,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:46:24,471 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:46:24,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:46:24,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:46:24,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:46:24,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:46:24,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:46:24,472 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:46:24,472 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:46:24,473 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:46:24,473 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:46:24,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:46:24,473 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:46:24,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:46:24,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:46:24,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:46:24,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:46:24,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:24,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:46:24,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:46:24,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:46:24,476 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:46:24,476 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:46:24,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:46:24,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:46:24,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:46:24,477 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d96f41c83679efe744540e7fde7918287d6cc79be28bb1ad9b63bf8e0d07ce19 [2021-11-23 16:46:24,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:46:24,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:46:24,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:46:24,893 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:46:24,895 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:46:24,897 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c [2021-11-23 16:46:24,957 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/data/6dd19431b/a1c231a097c245da8881f5120a37af48/FLAGb5c8f65da [2021-11-23 16:46:25,593 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:46:25,594 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c [2021-11-23 16:46:25,628 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/data/6dd19431b/a1c231a097c245da8881f5120a37af48/FLAGb5c8f65da [2021-11-23 16:46:25,994 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/data/6dd19431b/a1c231a097c245da8881f5120a37af48 [2021-11-23 16:46:26,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:46:26,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:46:26,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:26,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:46:26,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:46:26,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:25" (1/1) ... [2021-11-23 16:46:26,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c0216b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:26, skipping insertion in model container [2021-11-23 16:46:26,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:25" (1/1) ... [2021-11-23 16:46:26,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:46:26,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:46:26,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c[34453,34466] [2021-11-23 16:46:26,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:26,652 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 16:46:26,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:46:26,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c[34453,34466] [2021-11-23 16:46:26,779 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:26,784 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:46:26,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c[34453,34466] [2021-11-23 16:46:26,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:26,910 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:46:26,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:26 WrapperNode [2021-11-23 16:46:26,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:26,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:46:26,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:46:26,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:46:26,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:26" (1/1) ... [2021-11-23 16:46:26,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:26" (1/1) ... [2021-11-23 16:46:27,063 INFO L137 Inliner]: procedures = 96, calls = 340, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 1059 [2021-11-23 16:46:27,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:46:27,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:46:27,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:46:27,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:46:27,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:26" (1/1) ... [2021-11-23 16:46:27,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:26" (1/1) ... [2021-11-23 16:46:27,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:26" (1/1) ... [2021-11-23 16:46:27,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:26" (1/1) ... [2021-11-23 16:46:27,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:26" (1/1) ... [2021-11-23 16:46:27,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:26" (1/1) ... [2021-11-23 16:46:27,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:26" (1/1) ... [2021-11-23 16:46:27,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:46:27,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:46:27,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:46:27,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:46:27,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:26" (1/1) ... [2021-11-23 16:46:27,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:27,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:46:27,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:46:27,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:46:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:46:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2021-11-23 16:46:27,260 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2021-11-23 16:46:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2021-11-23 16:46:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2021-11-23 16:46:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2021-11-23 16:46:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2021-11-23 16:46:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2021-11-23 16:46:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2021-11-23 16:46:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2021-11-23 16:46:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2021-11-23 16:46:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2021-11-23 16:46:27,262 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2021-11-23 16:46:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2021-11-23 16:46:27,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2021-11-23 16:46:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 16:46:27,262 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 16:46:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 16:46:27,262 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 16:46:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2021-11-23 16:46:27,263 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2021-11-23 16:46:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-11-23 16:46:27,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-11-23 16:46:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2021-11-23 16:46:27,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2021-11-23 16:46:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2021-11-23 16:46:27,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2021-11-23 16:46:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2021-11-23 16:46:27,264 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2021-11-23 16:46:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:46:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2021-11-23 16:46:27,265 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2021-11-23 16:46:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2021-11-23 16:46:27,265 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2021-11-23 16:46:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2021-11-23 16:46:27,265 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2021-11-23 16:46:27,265 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2021-11-23 16:46:27,265 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2021-11-23 16:46:27,266 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2021-11-23 16:46:27,266 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2021-11-23 16:46:27,266 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2021-11-23 16:46:27,266 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2021-11-23 16:46:27,266 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2021-11-23 16:46:27,267 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2021-11-23 16:46:27,267 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2021-11-23 16:46:27,267 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2021-11-23 16:46:27,268 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2021-11-23 16:46:27,268 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2021-11-23 16:46:27,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:46:27,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:46:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2021-11-23 16:46:27,270 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2021-11-23 16:46:27,516 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:46:27,518 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:46:28,445 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:46:28,458 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:46:28,458 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 16:46:28,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:46:28 BoogieIcfgContainer [2021-11-23 16:46:28,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:46:28,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:46:28,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:46:28,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:46:28,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:46:25" (1/3) ... [2021-11-23 16:46:28,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15927ba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:46:28, skipping insertion in model container [2021-11-23 16:46:28,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:26" (2/3) ... [2021-11-23 16:46:28,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15927ba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:46:28, skipping insertion in model container [2021-11-23 16:46:28,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:46:28" (3/3) ... [2021-11-23 16:46:28,473 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product19.cil.c [2021-11-23 16:46:28,478 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:46:28,478 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:46:28,529 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:46:28,536 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=FINITE_AUTOMATA, 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 [2021-11-23 16:46:28,536 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 16:46:28,567 INFO L276 IsEmpty]: Start isEmpty. Operand has 560 states, 438 states have (on average 1.6894977168949772) internal successors, (740), 459 states have internal predecessors, (740), 96 states have call successors, (96), 24 states have call predecessors, (96), 24 states have return successors, (96), 90 states have call predecessors, (96), 96 states have call successors, (96) [2021-11-23 16:46:28,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-23 16:46:28,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:46:28,600 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 16:46:28,600 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:46:28,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:46:28,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1065418536, now seen corresponding path program 1 times [2021-11-23 16:46:28,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:46:28,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004594584] [2021-11-23 16:46:28,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:46:28,621 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:46:28,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:46:28,624 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:46:28,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 16:46:28,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 16:46:28,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:46:28,917 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) [2021-11-23 16:46:28,921 INFO L158 Benchmark]: Toolchain (without parser) took 2918.13ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 64.0MB in the beginning and 38.1MB in the end (delta: 25.9MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2021-11-23 16:46:28,922 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 79.7MB. Free memory was 61.6MB in the beginning and 61.6MB in the end (delta: 65.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:46:28,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 904.57ms. Allocated memory is still 79.7MB. Free memory was 63.8MB in the beginning and 41.2MB in the end (delta: 22.6MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2021-11-23 16:46:28,924 INFO L158 Benchmark]: Boogie Procedure Inliner took 151.30ms. Allocated memory is still 79.7MB. Free memory was 41.2MB in the beginning and 35.7MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 16:46:28,925 INFO L158 Benchmark]: Boogie Preprocessor took 90.76ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 35.7MB in the beginning and 77.8MB in the end (delta: -42.0MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-11-23 16:46:28,931 INFO L158 Benchmark]: RCFGBuilder took 1310.08ms. Allocated memory is still 98.6MB. Free memory was 77.8MB in the beginning and 53.4MB in the end (delta: 24.3MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. [2021-11-23 16:46:28,931 INFO L158 Benchmark]: TraceAbstraction took 452.39ms. Allocated memory is still 98.6MB. Free memory was 53.4MB in the beginning and 38.1MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 16:46:28,934 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 79.7MB. Free memory was 61.6MB in the beginning and 61.6MB in the end (delta: 65.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 904.57ms. Allocated memory is still 79.7MB. Free memory was 63.8MB in the beginning and 41.2MB in the end (delta: 22.6MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 151.30ms. Allocated memory is still 79.7MB. Free memory was 41.2MB in the beginning and 35.7MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.76ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 35.7MB in the beginning and 77.8MB in the end (delta: -42.0MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1310.08ms. Allocated memory is still 98.6MB. Free memory was 77.8MB in the beginning and 53.4MB in the end (delta: 24.3MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. * TraceAbstraction took 452.39ms. Allocated memory is still 98.6MB. Free memory was 53.4MB in the beginning and 38.1MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 16:46:28,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fd74a0d-5afc-46af-822b-e730e868a4e6/bin/utaipan-fb15Y9Yzbl/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