./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec9_product09.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_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/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_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/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_2a9d27a6-8866-438b-a383-82ae90b7c8e9/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 cc5b9f71a5434758faa1f6f3febe6f12c158e9feff610b938ef9d4658acd21ff --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:09:55,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:09:55,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:09:55,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:09:55,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:09:55,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:09:55,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:09:55,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:09:55,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:09:55,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:09:55,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:09:55,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:09:55,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:09:55,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:09:55,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:09:55,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:09:55,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:09:55,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:09:55,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:09:55,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:09:55,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:09:55,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:09:55,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:09:55,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:09:55,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:09:55,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:09:55,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:09:55,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:09:55,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:09:55,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:09:55,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:09:55,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:09:55,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:09:55,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:09:55,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:09:55,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:09:55,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:09:55,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:09:55,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:09:55,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:09:55,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:09:55,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:09:55,652 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:09:55,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:09:55,653 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:09:55,653 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:09:55,654 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:09:55,655 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:09:55,655 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:09:55,655 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:09:55,656 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:09:55,656 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:09:55,656 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:09:55,657 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:09:55,657 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:09:55,657 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:09:55,658 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:09:55,658 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:09:55,658 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:09:55,659 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:09:55,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:09:55,660 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:09:55,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:09:55,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:09:55,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:09:55,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:09:55,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:09:55,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:09:55,662 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:09:55,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:09:55,663 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:09:55,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:09:55,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:09:55,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:09:55,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:09:55,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:09:55,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:09:55,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:09:55,665 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:09:55,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:09:55,666 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:09:55,666 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:09:55,667 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:09:55,667 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_2a9d27a6-8866-438b-a383-82ae90b7c8e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc5b9f71a5434758faa1f6f3febe6f12c158e9feff610b938ef9d4658acd21ff [2021-11-23 17:09:55,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:09:56,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:09:56,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:09:56,026 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:09:56,027 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:09:56,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c [2021-11-23 17:09:56,117 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/data/4cab7c865/61b18ea159104f31aa40ad71ec19dae4/FLAG59fb7389c [2021-11-23 17:09:56,899 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:09:56,906 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c [2021-11-23 17:09:56,949 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/data/4cab7c865/61b18ea159104f31aa40ad71ec19dae4/FLAG59fb7389c [2021-11-23 17:09:57,021 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/data/4cab7c865/61b18ea159104f31aa40ad71ec19dae4 [2021-11-23 17:09:57,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:09:57,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:09:57,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:09:57,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:09:57,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:09:57,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:09:57" (1/1) ... [2021-11-23 17:09:57,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dea1c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:57, skipping insertion in model container [2021-11-23 17:09:57,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:09:57" (1/1) ... [2021-11-23 17:09:57,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:09:57,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:09:57,805 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_2a9d27a6-8866-438b-a383-82ae90b7c8e9/sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c[70349,70362] [2021-11-23 17:09:57,809 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:09:57,822 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:09:57,995 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_2a9d27a6-8866-438b-a383-82ae90b7c8e9/sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c[70349,70362] [2021-11-23 17:09:57,996 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:09:58,044 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:09:58,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:58 WrapperNode [2021-11-23 17:09:58,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:09:58,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:09:58,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:09:58,047 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:09:58,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:58" (1/1) ... [2021-11-23 17:09:58,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:58" (1/1) ... [2021-11-23 17:09:58,196 INFO L137 Inliner]: procedures = 89, calls = 327, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 771 [2021-11-23 17:09:58,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:09:58,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:09:58,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:09:58,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:09:58,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:58" (1/1) ... [2021-11-23 17:09:58,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:58" (1/1) ... [2021-11-23 17:09:58,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:58" (1/1) ... [2021-11-23 17:09:58,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:58" (1/1) ... [2021-11-23 17:09:58,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:58" (1/1) ... [2021-11-23 17:09:58,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:58" (1/1) ... [2021-11-23 17:09:58,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:58" (1/1) ... [2021-11-23 17:09:58,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:09:58,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:09:58,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:09:58,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:09:58,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:58" (1/1) ... [2021-11-23 17:09:58,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:09:58,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:09:58,399 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:09:58,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:09:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:09:58,470 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2021-11-23 17:09:58,470 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2021-11-23 17:09:58,470 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2021-11-23 17:09:58,470 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2021-11-23 17:09:58,471 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2021-11-23 17:09:58,471 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2021-11-23 17:09:58,471 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2021-11-23 17:09:58,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2021-11-23 17:09:58,471 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 17:09:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 17:09:58,472 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 17:09:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 17:09:58,472 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-11-23 17:09:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-11-23 17:09:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2021-11-23 17:09:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2021-11-23 17:09:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2021-11-23 17:09:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2021-11-23 17:09:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2021-11-23 17:09:58,474 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2021-11-23 17:09:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2021-11-23 17:09:58,474 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2021-11-23 17:09:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2021-11-23 17:09:58,474 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2021-11-23 17:09:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2021-11-23 17:09:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2021-11-23 17:09:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2021-11-23 17:09:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2021-11-23 17:09:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2021-11-23 17:09:58,476 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2021-11-23 17:09:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2021-11-23 17:09:58,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2021-11-23 17:09:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:09:58,477 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2021-11-23 17:09:58,477 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2021-11-23 17:09:58,477 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2021-11-23 17:09:58,478 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2021-11-23 17:09:58,478 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2021-11-23 17:09:58,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2021-11-23 17:09:58,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:09:58,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:09:58,479 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2021-11-23 17:09:58,479 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2021-11-23 17:09:58,737 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:09:58,771 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:10:00,177 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:10:00,244 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 17:10:00,250 INFO L158 Benchmark]: Toolchain (without parser) took 3222.98ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 45.8MB in the beginning and 67.3MB in the end (delta: -21.5MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2021-11-23 17:10:00,251 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory was 54.4MB in the beginning and 54.4MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:10:00,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1017.51ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 45.6MB in the beginning and 55.4MB in the end (delta: -9.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:10:00,254 INFO L158 Benchmark]: Boogie Procedure Inliner took 150.31ms. Allocated memory is still 107.0MB. Free memory was 55.4MB in the beginning and 50.7MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:10:00,255 INFO L158 Benchmark]: Boogie Preprocessor took 137.08ms. Allocated memory is still 107.0MB. Free memory was 50.2MB in the beginning and 45.5MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:10:00,256 INFO L158 Benchmark]: RCFGBuilder took 1912.28ms. Allocated memory is still 107.0MB. Free memory was 45.5MB in the beginning and 67.3MB in the end (delta: -21.8MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2021-11-23 17:10:00,260 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory was 54.4MB in the beginning and 54.4MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1017.51ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 45.6MB in the beginning and 55.4MB in the end (delta: -9.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 150.31ms. Allocated memory is still 107.0MB. Free memory was 55.4MB in the beginning and 50.7MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 137.08ms. Allocated memory is still 107.0MB. Free memory was 50.2MB in the beginning and 45.5MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1912.28ms. Allocated memory is still 107.0MB. Free memory was 45.5MB in the beginning and 67.3MB in the end (delta: -21.8MB). Peak memory consumption was 19.6MB. 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 17:10:00,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/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_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/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_2a9d27a6-8866-438b-a383-82ae90b7c8e9/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 cc5b9f71a5434758faa1f6f3febe6f12c158e9feff610b938ef9d4658acd21ff --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:10:03,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:10:03,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:10:03,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:10:03,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:10:03,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:10:03,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:10:03,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:10:03,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:10:03,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:10:03,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:10:03,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:10:03,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:10:03,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:10:03,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:10:03,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:10:03,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:10:03,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:10:03,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:10:03,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:10:03,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:10:03,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:10:03,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:10:03,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:10:03,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:10:03,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:10:03,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:10:03,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:10:03,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:10:03,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:10:03,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:10:03,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:10:03,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:10:03,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:10:03,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:10:03,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:10:03,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:10:03,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:10:03,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:10:03,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:10:03,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:10:03,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:10:03,605 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:10:03,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:10:03,606 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:10:03,607 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:10:03,608 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:10:03,608 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:10:03,608 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:10:03,609 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:10:03,609 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:10:03,609 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:10:03,611 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:10:03,611 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:10:03,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:10:03,613 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:10:03,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:10:03,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:10:03,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:10:03,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:10:03,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:10:03,615 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:10:03,615 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:10:03,616 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:10:03,616 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:10:03,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:10:03,617 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:10:03,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:10:03,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:10:03,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:10:03,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:10:03,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:10:03,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:10:03,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:10:03,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:10:03,620 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:10:03,620 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:10:03,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:10:03,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:10:03,621 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:10:03,621 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_2a9d27a6-8866-438b-a383-82ae90b7c8e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc5b9f71a5434758faa1f6f3febe6f12c158e9feff610b938ef9d4658acd21ff [2021-11-23 17:10:04,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:10:04,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:10:04,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:10:04,220 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:10:04,221 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:10:04,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c [2021-11-23 17:10:04,306 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/data/a9838305e/7e77e37c7c38461ca825b49166ac5f7d/FLAG9a80045b8 [2021-11-23 17:10:05,121 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:10:05,122 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c [2021-11-23 17:10:05,152 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/data/a9838305e/7e77e37c7c38461ca825b49166ac5f7d/FLAG9a80045b8 [2021-11-23 17:10:05,273 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/data/a9838305e/7e77e37c7c38461ca825b49166ac5f7d [2021-11-23 17:10:05,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:10:05,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:10:05,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:10:05,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:10:05,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:10:05,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:10:05" (1/1) ... [2021-11-23 17:10:05,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cb25f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:05, skipping insertion in model container [2021-11-23 17:10:05,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:10:05" (1/1) ... [2021-11-23 17:10:05,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:10:05,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:10:06,269 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_2a9d27a6-8866-438b-a383-82ae90b7c8e9/sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c[70349,70362] [2021-11-23 17:10:06,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:10:06,290 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 17:10:06,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:10:06,500 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_2a9d27a6-8866-438b-a383-82ae90b7c8e9/sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c[70349,70362] [2021-11-23 17:10:06,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:10:06,508 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:10:06,709 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_2a9d27a6-8866-438b-a383-82ae90b7c8e9/sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c[70349,70362] [2021-11-23 17:10:06,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:10:06,756 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:10:06,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:06 WrapperNode [2021-11-23 17:10:06,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:10:06,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:10:06,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:10:06,759 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:10:06,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:06" (1/1) ... [2021-11-23 17:10:06,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:06" (1/1) ... [2021-11-23 17:10:06,936 INFO L137 Inliner]: procedures = 91, calls = 327, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 733 [2021-11-23 17:10:06,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:10:06,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:10:06,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:10:06,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:10:06,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:06" (1/1) ... [2021-11-23 17:10:06,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:06" (1/1) ... [2021-11-23 17:10:06,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:06" (1/1) ... [2021-11-23 17:10:06,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:06" (1/1) ... [2021-11-23 17:10:07,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:06" (1/1) ... [2021-11-23 17:10:07,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:06" (1/1) ... [2021-11-23 17:10:07,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:06" (1/1) ... [2021-11-23 17:10:07,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:10:07,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:10:07,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:10:07,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:10:07,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:06" (1/1) ... [2021-11-23 17:10:07,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:10:07,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:10:07,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:10:07,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:10:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:10:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2021-11-23 17:10:07,232 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2021-11-23 17:10:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2021-11-23 17:10:07,232 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2021-11-23 17:10:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2021-11-23 17:10:07,233 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2021-11-23 17:10:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2021-11-23 17:10:07,233 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2021-11-23 17:10:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 17:10:07,233 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 17:10:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 17:10:07,234 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 17:10:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-11-23 17:10:07,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-11-23 17:10:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2021-11-23 17:10:07,235 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2021-11-23 17:10:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2021-11-23 17:10:07,235 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2021-11-23 17:10:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2021-11-23 17:10:07,236 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2021-11-23 17:10:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:10:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2021-11-23 17:10:07,236 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2021-11-23 17:10:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2021-11-23 17:10:07,237 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2021-11-23 17:10:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2021-11-23 17:10:07,238 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2021-11-23 17:10:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2021-11-23 17:10:07,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2021-11-23 17:10:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2021-11-23 17:10:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2021-11-23 17:10:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2021-11-23 17:10:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2021-11-23 17:10:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2021-11-23 17:10:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2021-11-23 17:10:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2021-11-23 17:10:07,240 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2021-11-23 17:10:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2021-11-23 17:10:07,240 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2021-11-23 17:10:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:10:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:10:07,241 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2021-11-23 17:10:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2021-11-23 17:10:07,532 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:10:07,534 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:10:08,992 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:10:09,019 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:10:09,019 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:10:09,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:10:09 BoogieIcfgContainer [2021-11-23 17:10:09,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:10:09,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:10:09,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:10:09,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:10:09,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:10:05" (1/3) ... [2021-11-23 17:10:09,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7f4b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:10:09, skipping insertion in model container [2021-11-23 17:10:09,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:10:06" (2/3) ... [2021-11-23 17:10:09,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7f4b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:10:09, skipping insertion in model container [2021-11-23 17:10:09,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:10:09" (3/3) ... [2021-11-23 17:10:09,036 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product09.cil.c [2021-11-23 17:10:09,043 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:10:09,043 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:10:09,134 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:10:09,145 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 17:10:09,146 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:10:09,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 517 states, 412 states have (on average 1.720873786407767) internal successors, (709), 433 states have internal predecessors, (709), 83 states have call successors, (83), 20 states have call predecessors, (83), 20 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2021-11-23 17:10:09,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-23 17:10:09,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:10:09,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:10:09,268 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:10:09,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:10:09,277 INFO L85 PathProgramCache]: Analyzing trace with hash 174502393, now seen corresponding path program 1 times [2021-11-23 17:10:09,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:10:09,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008230514] [2021-11-23 17:10:09,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:10:09,300 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:10:09,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:10:09,306 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:10:09,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:10:09,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 17:10:09,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:10:09,628 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 17:10:09,638 INFO L158 Benchmark]: Toolchain (without parser) took 4355.39ms. Allocated memory was 52.4MB in the beginning and 94.4MB in the end (delta: 41.9MB). Free memory was 26.6MB in the beginning and 52.4MB in the end (delta: -25.8MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2021-11-23 17:10:09,639 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 52.4MB. Free memory was 34.0MB in the beginning and 34.0MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:10:09,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1473.69ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 26.4MB in the beginning and 45.9MB in the end (delta: -19.5MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2021-11-23 17:10:09,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 190.32ms. Allocated memory is still 71.3MB. Free memory was 45.9MB in the beginning and 41.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:10:09,646 INFO L158 Benchmark]: Boogie Preprocessor took 152.76ms. Allocated memory is still 71.3MB. Free memory was 41.5MB in the beginning and 36.5MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:10:09,651 INFO L158 Benchmark]: RCFGBuilder took 1921.67ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 36.5MB in the beginning and 66.6MB in the end (delta: -30.1MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2021-11-23 17:10:09,653 INFO L158 Benchmark]: TraceAbstraction took 608.25ms. Allocated memory is still 94.4MB. Free memory was 66.3MB in the beginning and 52.4MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:10:09,659 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 52.4MB. Free memory was 34.0MB in the beginning and 34.0MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1473.69ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 26.4MB in the beginning and 45.9MB in the end (delta: -19.5MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 190.32ms. Allocated memory is still 71.3MB. Free memory was 45.9MB in the beginning and 41.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 152.76ms. Allocated memory is still 71.3MB. Free memory was 41.5MB in the beginning and 36.5MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1921.67ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 36.5MB in the beginning and 66.6MB in the end (delta: -30.1MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * TraceAbstraction took 608.25ms. Allocated memory is still 94.4MB. Free memory was 66.3MB in the beginning and 52.4MB in the end (delta: 13.9MB). 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 17:10:09,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a9d27a6-8866-438b-a383-82ae90b7c8e9/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