./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec1_product17.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_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/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_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec1_product17.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/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_a12ce2f8-2763-4484-9469-867bfae45b05/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 09d600be73ca435c113b9c0e8e087d96a910d62ea2126c235d6963c00b3a91c2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:47:09,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:47:09,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:47:09,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:47:09,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:47:09,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:47:09,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:47:09,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:47:09,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:47:09,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:47:09,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:47:09,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:47:09,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:47:09,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:47:09,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:47:09,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:47:09,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:47:09,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:47:09,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:47:09,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:47:09,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:47:09,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:47:09,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:47:09,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:47:09,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:47:09,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:47:09,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:47:09,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:47:09,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:47:09,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:47:09,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:47:09,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:47:09,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:47:09,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:47:09,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:47:09,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:47:09,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:47:09,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:47:09,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:47:09,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:47:09,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:47:09,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:47:09,978 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:47:09,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:47:09,979 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:47:09,979 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:47:09,987 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:47:09,987 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:47:09,987 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:47:09,987 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:47:09,988 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:47:09,988 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:47:09,989 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:47:09,989 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:47:09,989 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:47:09,990 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:47:09,990 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:47:09,990 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:47:09,990 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:47:09,991 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:47:09,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:47:09,992 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:47:09,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:47:09,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:47:09,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:47:09,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:47:09,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:47:09,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:47:09,996 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:47:09,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:47:09,996 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:47:09,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:47:09,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:47:09,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:47:09,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:09,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:47:09,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:47:09,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:47:09,998 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:47:09,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:47:09,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:47:09,999 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:47:09,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:47:09,999 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_a12ce2f8-2763-4484-9469-867bfae45b05/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09d600be73ca435c113b9c0e8e087d96a910d62ea2126c235d6963c00b3a91c2 [2021-11-23 16:47:10,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:47:10,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:47:10,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:47:10,372 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:47:10,373 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:47:10,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/elevator_spec1_product17.cil.c [2021-11-23 16:47:10,469 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/data/9c9827330/639788a7f77b4b66a088e2d312b0e5d6/FLAG411f8b6fd [2021-11-23 16:47:11,107 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:47:11,108 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/sv-benchmarks/c/product-lines/elevator_spec1_product17.cil.c [2021-11-23 16:47:11,134 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/data/9c9827330/639788a7f77b4b66a088e2d312b0e5d6/FLAG411f8b6fd [2021-11-23 16:47:11,296 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/data/9c9827330/639788a7f77b4b66a088e2d312b0e5d6 [2021-11-23 16:47:11,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:47:11,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:47:11,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:11,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:47:11,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:47:11,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:11" (1/1) ... [2021-11-23 16:47:11,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c61f15f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:11, skipping insertion in model container [2021-11-23 16:47:11,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:11" (1/1) ... [2021-11-23 16:47:11,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:47:11,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:47:11,792 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_a12ce2f8-2763-4484-9469-867bfae45b05/sv-benchmarks/c/product-lines/elevator_spec1_product17.cil.c[27470,27483] [2021-11-23 16:47:12,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:12,092 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:47:12,178 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_a12ce2f8-2763-4484-9469-867bfae45b05/sv-benchmarks/c/product-lines/elevator_spec1_product17.cil.c[27470,27483] [2021-11-23 16:47:12,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:12,308 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:47:12,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:12 WrapperNode [2021-11-23 16:47:12,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:12,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:12,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:47:12,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:47:12,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:12" (1/1) ... [2021-11-23 16:47:12,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:12" (1/1) ... [2021-11-23 16:47:12,428 INFO L137 Inliner]: procedures = 90, calls = 333, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 791 [2021-11-23 16:47:12,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:12,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:47:12,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:47:12,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:47:12,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:12" (1/1) ... [2021-11-23 16:47:12,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:12" (1/1) ... [2021-11-23 16:47:12,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:12" (1/1) ... [2021-11-23 16:47:12,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:12" (1/1) ... [2021-11-23 16:47:12,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:12" (1/1) ... [2021-11-23 16:47:12,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:12" (1/1) ... [2021-11-23 16:47:12,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:12" (1/1) ... [2021-11-23 16:47:12,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:47:12,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:47:12,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:47:12,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:47:12,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:12" (1/1) ... [2021-11-23 16:47:12,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:12,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:47:12,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:47:12,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:47:12,602 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2021-11-23 16:47:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2021-11-23 16:47:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:47:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2021-11-23 16:47:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2021-11-23 16:47:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2021-11-23 16:47:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2021-11-23 16:47:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2021-11-23 16:47:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2021-11-23 16:47:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2021-11-23 16:47:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2021-11-23 16:47:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2021-11-23 16:47:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2021-11-23 16:47:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 16:47:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 16:47:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 16:47:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 16:47:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2021-11-23 16:47:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2021-11-23 16:47:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-11-23 16:47:12,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-11-23 16:47:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2021-11-23 16:47:12,606 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2021-11-23 16:47:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2021-11-23 16:47:12,606 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2021-11-23 16:47:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2021-11-23 16:47:12,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2021-11-23 16:47:12,607 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2021-11-23 16:47:12,608 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2021-11-23 16:47:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2021-11-23 16:47:12,608 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2021-11-23 16:47:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2021-11-23 16:47:12,608 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2021-11-23 16:47:12,608 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2021-11-23 16:47:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2021-11-23 16:47:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2021-11-23 16:47:12,622 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2021-11-23 16:47:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:47:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2021-11-23 16:47:12,623 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2021-11-23 16:47:12,623 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2021-11-23 16:47:12,623 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2021-11-23 16:47:12,623 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2021-11-23 16:47:12,623 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2021-11-23 16:47:12,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:47:12,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:47:12,624 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2021-11-23 16:47:12,624 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2021-11-23 16:47:12,791 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:47:12,793 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:47:13,932 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:47:13,990 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 16:47:13,996 INFO L158 Benchmark]: Toolchain (without parser) took 2693.61ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 50.4MB in the beginning and 65.7MB in the end (delta: -15.3MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2021-11-23 16:47:13,998 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory was 59.9MB in the beginning and 59.9MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:47:14,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1000.24ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 50.4MB in the beginning and 54.2MB in the end (delta: -3.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 16:47:14,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.74ms. Allocated memory is still 107.0MB. Free memory was 54.2MB in the beginning and 49.5MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 16:47:14,002 INFO L158 Benchmark]: Boogie Preprocessor took 72.90ms. Allocated memory is still 107.0MB. Free memory was 49.5MB in the beginning and 44.8MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 16:47:14,003 INFO L158 Benchmark]: RCFGBuilder took 1490.90ms. Allocated memory is still 107.0MB. Free memory was 44.8MB in the beginning and 65.7MB in the end (delta: -20.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 16:47:14,013 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory was 59.9MB in the beginning and 59.9MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1000.24ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 50.4MB in the beginning and 54.2MB in the end (delta: -3.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.74ms. Allocated memory is still 107.0MB. Free memory was 54.2MB in the beginning and 49.5MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.90ms. Allocated memory is still 107.0MB. Free memory was 49.5MB in the beginning and 44.8MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1490.90ms. Allocated memory is still 107.0MB. Free memory was 44.8MB in the beginning and 65.7MB in the end (delta: -20.9MB). Peak memory consumption was 16.8MB. 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 16:47:14,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/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_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/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_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec1_product17.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/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_a12ce2f8-2763-4484-9469-867bfae45b05/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 09d600be73ca435c113b9c0e8e087d96a910d62ea2126c235d6963c00b3a91c2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:47:16,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:47:16,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:47:16,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:47:16,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:47:16,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:47:16,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:47:16,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:47:16,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:47:16,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:47:16,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:47:16,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:47:16,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:47:16,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:47:16,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:47:16,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:47:16,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:47:16,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:47:16,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:47:16,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:47:16,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:47:16,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:47:16,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:47:16,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:47:16,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:47:16,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:47:16,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:47:16,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:47:16,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:47:16,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:47:16,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:47:16,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:47:16,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:47:16,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:47:16,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:47:16,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:47:16,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:47:16,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:47:16,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:47:16,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:47:16,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:47:16,700 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:47:16,728 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:47:16,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:47:16,729 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:47:16,729 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:47:16,730 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:47:16,730 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:47:16,731 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:47:16,731 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:47:16,731 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:47:16,731 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:47:16,732 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:47:16,732 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:47:16,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:47:16,733 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:47:16,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:47:16,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:47:16,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:47:16,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:47:16,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:47:16,734 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:47:16,734 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:47:16,735 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:47:16,735 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:47:16,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:47:16,735 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:47:16,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:47:16,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:47:16,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:47:16,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:47:16,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:16,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:47:16,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:47:16,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:47:16,738 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:47:16,738 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:47:16,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:47:16,738 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:47:16,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:47:16,740 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_a12ce2f8-2763-4484-9469-867bfae45b05/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09d600be73ca435c113b9c0e8e087d96a910d62ea2126c235d6963c00b3a91c2 [2021-11-23 16:47:17,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:47:17,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:47:17,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:47:17,148 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:47:17,150 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:47:17,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/elevator_spec1_product17.cil.c [2021-11-23 16:47:17,219 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/data/98be6f28d/961d276f2a8f4cf4ae3f4633379b931b/FLAGbf906abcf [2021-11-23 16:47:17,939 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:47:17,939 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/sv-benchmarks/c/product-lines/elevator_spec1_product17.cil.c [2021-11-23 16:47:17,970 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/data/98be6f28d/961d276f2a8f4cf4ae3f4633379b931b/FLAGbf906abcf [2021-11-23 16:47:18,084 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/data/98be6f28d/961d276f2a8f4cf4ae3f4633379b931b [2021-11-23 16:47:18,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:47:18,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:47:18,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:18,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:47:18,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:47:18,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:18" (1/1) ... [2021-11-23 16:47:18,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e4bba83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:18, skipping insertion in model container [2021-11-23 16:47:18,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:18" (1/1) ... [2021-11-23 16:47:18,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:47:18,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:47:18,683 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_a12ce2f8-2763-4484-9469-867bfae45b05/sv-benchmarks/c/product-lines/elevator_spec1_product17.cil.c[27470,27483] [2021-11-23 16:47:18,883 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:18,899 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 16:47:18,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:47:18,965 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_a12ce2f8-2763-4484-9469-867bfae45b05/sv-benchmarks/c/product-lines/elevator_spec1_product17.cil.c[27470,27483] [2021-11-23 16:47:19,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:19,047 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:47:19,118 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_a12ce2f8-2763-4484-9469-867bfae45b05/sv-benchmarks/c/product-lines/elevator_spec1_product17.cil.c[27470,27483] [2021-11-23 16:47:19,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:19,276 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:47:19,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19 WrapperNode [2021-11-23 16:47:19,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:19,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:19,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:47:19,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:47:19,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:19,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:19,406 INFO L137 Inliner]: procedures = 92, calls = 333, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 749 [2021-11-23 16:47:19,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:19,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:47:19,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:47:19,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:47:19,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:19,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:19,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:19,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:19,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:19,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:19,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:19,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:47:19,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:47:19,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:47:19,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:47:19,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (1/1) ... [2021-11-23 16:47:19,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:19,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:47:19,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:47:19,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:47:19,591 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2021-11-23 16:47:19,592 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2021-11-23 16:47:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:47:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2021-11-23 16:47:19,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2021-11-23 16:47:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2021-11-23 16:47:19,593 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2021-11-23 16:47:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2021-11-23 16:47:19,593 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2021-11-23 16:47:19,593 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2021-11-23 16:47:19,593 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2021-11-23 16:47:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2021-11-23 16:47:19,594 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2021-11-23 16:47:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 16:47:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 16:47:19,595 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 16:47:19,595 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 16:47:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2021-11-23 16:47:19,596 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2021-11-23 16:47:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-11-23 16:47:19,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-11-23 16:47:19,596 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2021-11-23 16:47:19,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2021-11-23 16:47:19,597 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2021-11-23 16:47:19,597 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2021-11-23 16:47:19,597 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2021-11-23 16:47:19,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2021-11-23 16:47:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:47:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2021-11-23 16:47:19,598 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2021-11-23 16:47:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2021-11-23 16:47:19,599 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2021-11-23 16:47:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2021-11-23 16:47:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2021-11-23 16:47:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2021-11-23 16:47:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2021-11-23 16:47:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2021-11-23 16:47:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2021-11-23 16:47:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2021-11-23 16:47:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2021-11-23 16:47:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2021-11-23 16:47:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2021-11-23 16:47:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2021-11-23 16:47:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2021-11-23 16:47:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:47:19,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:47:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2021-11-23 16:47:19,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2021-11-23 16:47:19,740 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:47:19,742 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:47:21,124 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:47:21,148 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:47:21,148 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 16:47:21,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:47:21 BoogieIcfgContainer [2021-11-23 16:47:21,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:47:21,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:47:21,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:47:21,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:47:21,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:47:18" (1/3) ... [2021-11-23 16:47:21,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d68e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:47:21, skipping insertion in model container [2021-11-23 16:47:21,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:19" (2/3) ... [2021-11-23 16:47:21,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d68e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:47:21, skipping insertion in model container [2021-11-23 16:47:21,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:47:21" (3/3) ... [2021-11-23 16:47:21,165 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product17.cil.c [2021-11-23 16:47:21,171 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:47:21,171 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:47:21,231 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:47:21,238 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 16:47:21,238 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 16:47:21,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 539 states, 424 states have (on average 1.705188679245283) internal successors, (723), 445 states have internal predecessors, (723), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) [2021-11-23 16:47:21,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-23 16:47:21,302 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:47:21,303 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:47:21,304 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:47:21,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:47:21,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1594208609, now seen corresponding path program 1 times [2021-11-23 16:47:21,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:47:21,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660466788] [2021-11-23 16:47:21,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:47:21,338 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:47:21,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:47:21,341 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:47:21,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 16:47:21,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 16:47:21,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:47:21,622 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 16:47:21,632 INFO L158 Benchmark]: Toolchain (without parser) took 3536.52ms. Allocated memory was 60.8MB in the beginning and 113.2MB in the end (delta: 52.4MB). Free memory was 37.7MB in the beginning and 80.5MB in the end (delta: -42.8MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2021-11-23 16:47:21,633 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 60.8MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:47:21,636 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1183.24ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 37.5MB in the beginning and 58.0MB in the end (delta: -20.6MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2021-11-23 16:47:21,637 INFO L158 Benchmark]: Boogie Procedure Inliner took 129.32ms. Allocated memory is still 81.8MB. Free memory was 58.0MB in the beginning and 53.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 16:47:21,638 INFO L158 Benchmark]: Boogie Preprocessor took 67.80ms. Allocated memory is still 81.8MB. Free memory was 53.5MB in the beginning and 48.6MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 16:47:21,645 INFO L158 Benchmark]: RCFGBuilder took 1677.42ms. Allocated memory was 81.8MB in the beginning and 113.2MB in the end (delta: 31.5MB). Free memory was 48.2MB in the beginning and 62.1MB in the end (delta: -13.9MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2021-11-23 16:47:21,646 INFO L158 Benchmark]: TraceAbstraction took 467.14ms. Allocated memory is still 113.2MB. Free memory was 61.5MB in the beginning and 80.5MB in the end (delta: -19.0MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2021-11-23 16:47:21,650 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 60.8MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1183.24ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 37.5MB in the beginning and 58.0MB in the end (delta: -20.6MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 129.32ms. Allocated memory is still 81.8MB. Free memory was 58.0MB in the beginning and 53.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.80ms. Allocated memory is still 81.8MB. Free memory was 53.5MB in the beginning and 48.6MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1677.42ms. Allocated memory was 81.8MB in the beginning and 113.2MB in the end (delta: 31.5MB). Free memory was 48.2MB in the beginning and 62.1MB in the end (delta: -13.9MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * TraceAbstraction took 467.14ms. Allocated memory is still 113.2MB. Free memory was 61.5MB in the beginning and 80.5MB in the end (delta: -19.0MB). Peak memory consumption was 12.8MB. 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 16:47:21,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12ce2f8-2763-4484-9469-867bfae45b05/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