./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec9_product25.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_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/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_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/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_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/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 68864d90c2581c7e2b9a72172352bcf9279d03107788434bd4ac5af6cc5db51a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:39:32,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:39:32,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:39:32,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:39:32,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:39:32,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:39:32,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:39:32,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:39:32,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:39:32,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:39:32,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:39:32,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:39:32,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:39:32,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:39:32,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:39:32,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:39:32,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:39:32,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:39:32,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:39:32,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:39:32,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:39:32,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:39:32,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:39:32,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:39:32,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:39:32,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:39:32,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:39:32,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:39:32,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:39:32,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:39:32,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:39:32,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:39:32,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:39:32,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:39:32,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:39:32,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:39:32,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:39:32,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:39:32,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:39:32,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:39:32,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:39:32,526 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:39:32,588 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:39:32,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:39:32,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:39:32,589 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:39:32,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:39:32,597 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:39:32,598 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:39:32,598 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:39:32,598 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:39:32,598 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:39:32,599 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:39:32,599 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:39:32,599 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:39:32,599 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:39:32,600 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:39:32,600 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:39:32,600 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:39:32,600 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:39:32,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:39:32,601 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:39:32,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:39:32,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:39:32,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:39:32,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:39:32,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:39:32,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:39:32,603 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:39:32,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:39:32,604 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:39:32,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:39:32,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:39:32,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:39:32,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:39:32,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:39:32,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:39:32,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:39:32,607 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:39:32,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:39:32,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:39:32,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:39:32,608 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:39:32,609 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_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68864d90c2581c7e2b9a72172352bcf9279d03107788434bd4ac5af6cc5db51a [2021-11-23 17:39:32,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:39:32,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:39:32,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:39:32,987 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:39:32,988 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:39:32,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c [2021-11-23 17:39:33,108 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/data/5d74eff48/c70378ea23644d2893ad6eb100b4d83a/FLAG530dee505 [2021-11-23 17:39:33,860 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:39:33,869 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c [2021-11-23 17:39:33,912 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/data/5d74eff48/c70378ea23644d2893ad6eb100b4d83a/FLAG530dee505 [2021-11-23 17:39:34,069 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/data/5d74eff48/c70378ea23644d2893ad6eb100b4d83a [2021-11-23 17:39:34,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:39:34,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:39:34,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:39:34,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:39:34,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:39:34,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:39:34" (1/1) ... [2021-11-23 17:39:34,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@242894d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:34, skipping insertion in model container [2021-11-23 17:39:34,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:39:34" (1/1) ... [2021-11-23 17:39:34,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:39:34,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:39:34,703 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_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c[23488,23501] [2021-11-23 17:39:34,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:39:34,901 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:39:34,982 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_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c[23488,23501] [2021-11-23 17:39:35,052 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:39:35,099 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:39:35,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:35 WrapperNode [2021-11-23 17:39:35,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:39:35,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:39:35,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:39:35,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:39:35,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:35" (1/1) ... [2021-11-23 17:39:35,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:35" (1/1) ... [2021-11-23 17:39:35,226 INFO L137 Inliner]: procedures = 91, calls = 331, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 805 [2021-11-23 17:39:35,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:39:35,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:39:35,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:39:35,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:39:35,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:35" (1/1) ... [2021-11-23 17:39:35,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:35" (1/1) ... [2021-11-23 17:39:35,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:35" (1/1) ... [2021-11-23 17:39:35,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:35" (1/1) ... [2021-11-23 17:39:35,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:35" (1/1) ... [2021-11-23 17:39:35,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:35" (1/1) ... [2021-11-23 17:39:35,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:35" (1/1) ... [2021-11-23 17:39:35,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:39:35,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:39:35,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:39:35,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:39:35,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:35" (1/1) ... [2021-11-23 17:39:35,334 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:39:35,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:39:35,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:39:35,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:39:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:39:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2021-11-23 17:39:35,422 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2021-11-23 17:39:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2021-11-23 17:39:35,423 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2021-11-23 17:39:35,423 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2021-11-23 17:39:35,424 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2021-11-23 17:39:35,424 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2021-11-23 17:39:35,424 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2021-11-23 17:39:35,424 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2021-11-23 17:39:35,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2021-11-23 17:39:35,425 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 17:39:35,425 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 17:39:35,425 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 17:39:35,425 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 17:39:35,426 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-11-23 17:39:35,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-11-23 17:39:35,427 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2021-11-23 17:39:35,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2021-11-23 17:39:35,427 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2021-11-23 17:39:35,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2021-11-23 17:39:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2021-11-23 17:39:35,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2021-11-23 17:39:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2021-11-23 17:39:35,428 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2021-11-23 17:39:35,429 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2021-11-23 17:39:35,429 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2021-11-23 17:39:35,429 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2021-11-23 17:39:35,430 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2021-11-23 17:39:35,430 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2021-11-23 17:39:35,430 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2021-11-23 17:39:35,430 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2021-11-23 17:39:35,430 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2021-11-23 17:39:35,431 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2021-11-23 17:39:35,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2021-11-23 17:39:35,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:39:35,432 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2021-11-23 17:39:35,432 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2021-11-23 17:39:35,433 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2021-11-23 17:39:35,433 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2021-11-23 17:39:35,433 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2021-11-23 17:39:35,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2021-11-23 17:39:35,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:39:35,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:39:35,434 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2021-11-23 17:39:35,435 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2021-11-23 17:39:35,682 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:39:35,699 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:39:36,979 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:39:37,083 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 17:39:37,095 INFO L158 Benchmark]: Toolchain (without parser) took 3017.53ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 56.8MB in the beginning and 54.0MB in the end (delta: 2.9MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. [2021-11-23 17:39:37,096 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory is still 46.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:39:37,100 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1019.82ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 56.6MB in the beginning and 74.3MB in the end (delta: -17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 17:39:37,101 INFO L158 Benchmark]: Boogie Procedure Inliner took 125.92ms. Allocated memory is still 125.8MB. Free memory was 73.6MB in the beginning and 69.3MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:39:37,103 INFO L158 Benchmark]: Boogie Preprocessor took 95.19ms. Allocated memory is still 125.8MB. Free memory was 69.3MB in the beginning and 64.4MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:39:37,104 INFO L158 Benchmark]: RCFGBuilder took 1769.37ms. Allocated memory is still 125.8MB. Free memory was 64.4MB in the beginning and 54.0MB in the end (delta: 10.4MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2021-11-23 17:39:37,113 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 92.3MB. Free memory is still 46.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1019.82ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 56.6MB in the beginning and 74.3MB in the end (delta: -17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 125.92ms. Allocated memory is still 125.8MB. Free memory was 73.6MB in the beginning and 69.3MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.19ms. Allocated memory is still 125.8MB. Free memory was 69.3MB in the beginning and 64.4MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1769.37ms. Allocated memory is still 125.8MB. Free memory was 64.4MB in the beginning and 54.0MB in the end (delta: 10.4MB). Peak memory consumption was 29.2MB. 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 17:39:37,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/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_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/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_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/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_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/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 68864d90c2581c7e2b9a72172352bcf9279d03107788434bd4ac5af6cc5db51a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:39:39,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:39:39,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:39:40,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:39:40,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:39:40,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:39:40,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:39:40,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:39:40,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:39:40,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:39:40,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:39:40,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:39:40,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:39:40,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:39:40,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:39:40,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:39:40,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:39:40,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:39:40,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:39:40,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:39:40,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:39:40,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:39:40,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:39:40,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:39:40,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:39:40,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:39:40,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:39:40,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:39:40,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:39:40,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:39:40,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:39:40,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:39:40,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:39:40,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:39:40,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:39:40,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:39:40,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:39:40,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:39:40,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:39:40,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:39:40,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:39:40,070 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:39:40,101 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:39:40,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:39:40,101 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:39:40,102 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:39:40,103 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:39:40,103 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:39:40,103 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:39:40,104 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:39:40,104 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:39:40,104 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:39:40,104 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:39:40,105 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:39:40,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:39:40,106 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:39:40,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:39:40,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:39:40,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:39:40,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:39:40,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:39:40,108 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:39:40,108 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:39:40,108 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:39:40,108 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:39:40,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:39:40,109 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:39:40,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:39:40,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:39:40,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:39:40,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:39:40,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:39:40,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:39:40,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:39:40,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:39:40,111 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:39:40,112 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:39:40,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:39:40,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:39:40,112 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:39:40,113 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_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68864d90c2581c7e2b9a72172352bcf9279d03107788434bd4ac5af6cc5db51a [2021-11-23 17:39:40,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:39:40,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:39:40,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:39:40,560 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:39:40,561 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:39:40,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c [2021-11-23 17:39:40,657 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/data/0c4634161/67b79c0d9f3642e9bab18fb25178ef17/FLAGf656e8c4e [2021-11-23 17:39:41,425 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:39:41,433 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c [2021-11-23 17:39:41,474 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/data/0c4634161/67b79c0d9f3642e9bab18fb25178ef17/FLAGf656e8c4e [2021-11-23 17:39:41,609 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/data/0c4634161/67b79c0d9f3642e9bab18fb25178ef17 [2021-11-23 17:39:41,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:39:41,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:39:41,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:39:41,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:39:41,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:39:41,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:39:41" (1/1) ... [2021-11-23 17:39:41,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f8a2811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:41, skipping insertion in model container [2021-11-23 17:39:41,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:39:41" (1/1) ... [2021-11-23 17:39:41,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:39:41,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:39:42,371 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_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c[23488,23501] [2021-11-23 17:39:42,652 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:39:42,667 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 17:39:42,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:39:42,743 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_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c[23488,23501] [2021-11-23 17:39:42,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:39:42,847 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:39:42,908 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_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c[23488,23501] [2021-11-23 17:39:42,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:39:43,020 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:39:43,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:43 WrapperNode [2021-11-23 17:39:43,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:39:43,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:39:43,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:39:43,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:39:43,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:43" (1/1) ... [2021-11-23 17:39:43,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:43" (1/1) ... [2021-11-23 17:39:43,140 INFO L137 Inliner]: procedures = 93, calls = 331, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 765 [2021-11-23 17:39:43,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:39:43,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:39:43,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:39:43,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:39:43,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:43" (1/1) ... [2021-11-23 17:39:43,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:43" (1/1) ... [2021-11-23 17:39:43,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:43" (1/1) ... [2021-11-23 17:39:43,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:43" (1/1) ... [2021-11-23 17:39:43,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:43" (1/1) ... [2021-11-23 17:39:43,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:43" (1/1) ... [2021-11-23 17:39:43,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:43" (1/1) ... [2021-11-23 17:39:43,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:39:43,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:39:43,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:39:43,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:39:43,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:43" (1/1) ... [2021-11-23 17:39:43,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:39:43,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:39:43,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:39:43,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:39:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:39:43,421 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2021-11-23 17:39:43,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2021-11-23 17:39:43,422 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2021-11-23 17:39:43,422 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2021-11-23 17:39:43,422 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2021-11-23 17:39:43,422 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2021-11-23 17:39:43,422 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2021-11-23 17:39:43,423 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2021-11-23 17:39:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2021-11-23 17:39:43,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2021-11-23 17:39:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 17:39:43,423 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 17:39:43,424 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 17:39:43,424 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 17:39:43,424 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-11-23 17:39:43,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-11-23 17:39:43,425 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2021-11-23 17:39:43,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2021-11-23 17:39:43,425 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2021-11-23 17:39:43,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2021-11-23 17:39:43,425 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2021-11-23 17:39:43,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2021-11-23 17:39:43,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:39:43,426 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2021-11-23 17:39:43,426 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2021-11-23 17:39:43,426 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2021-11-23 17:39:43,427 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2021-11-23 17:39:43,427 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2021-11-23 17:39:43,427 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2021-11-23 17:39:43,427 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2021-11-23 17:39:43,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2021-11-23 17:39:43,428 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2021-11-23 17:39:43,428 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2021-11-23 17:39:43,428 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2021-11-23 17:39:43,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2021-11-23 17:39:43,429 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2021-11-23 17:39:43,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2021-11-23 17:39:43,429 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2021-11-23 17:39:43,429 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2021-11-23 17:39:43,429 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2021-11-23 17:39:43,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2021-11-23 17:39:43,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:39:43,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:39:43,430 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2021-11-23 17:39:43,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2021-11-23 17:39:43,625 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:39:43,627 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:39:45,088 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:39:45,113 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:39:45,113 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:39:45,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:39:45 BoogieIcfgContainer [2021-11-23 17:39:45,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:39:45,122 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:39:45,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:39:45,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:39:45,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:39:41" (1/3) ... [2021-11-23 17:39:45,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfe4d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:39:45, skipping insertion in model container [2021-11-23 17:39:45,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:43" (2/3) ... [2021-11-23 17:39:45,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfe4d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:39:45, skipping insertion in model container [2021-11-23 17:39:45,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:39:45" (3/3) ... [2021-11-23 17:39:45,129 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product25.cil.c [2021-11-23 17:39:45,136 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:39:45,136 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:39:45,220 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:39:45,231 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 17:39:45,231 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:39:45,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 532 states, 424 states have (on average 1.7146226415094339) internal successors, (727), 445 states have internal predecessors, (727), 85 states have call successors, (85), 21 states have call predecessors, (85), 21 states have return successors, (85), 79 states have call predecessors, (85), 85 states have call successors, (85) [2021-11-23 17:39:45,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-23 17:39:45,315 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:39:45,316 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 17:39:45,317 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:39:45,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:39:45,329 INFO L85 PathProgramCache]: Analyzing trace with hash -681820971, now seen corresponding path program 1 times [2021-11-23 17:39:45,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:39:45,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119297804] [2021-11-23 17:39:45,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:39:45,352 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:39:45,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:39:45,356 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:39:45,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:39:45,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:39:45,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:39:45,674 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 17:39:45,679 INFO L158 Benchmark]: Toolchain (without parser) took 4060.05ms. Allocated memory was 56.6MB in the beginning and 96.5MB in the end (delta: 39.8MB). Free memory was 32.6MB in the beginning and 67.0MB in the end (delta: -34.4MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2021-11-23 17:39:45,679 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 56.6MB. Free memory was 38.5MB in the beginning and 38.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:39:45,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1400.20ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 32.5MB in the beginning and 46.0MB in the end (delta: -13.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2021-11-23 17:39:45,681 INFO L158 Benchmark]: Boogie Procedure Inliner took 126.34ms. Allocated memory is still 73.4MB. Free memory was 46.0MB 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 17:39:45,682 INFO L158 Benchmark]: Boogie Preprocessor took 136.93ms. Allocated memory is still 73.4MB. Free memory was 41.5MB in the beginning and 36.6MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:39:45,683 INFO L158 Benchmark]: RCFGBuilder took 1830.60ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 36.6MB in the beginning and 56.5MB in the end (delta: -20.0MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2021-11-23 17:39:45,684 INFO L158 Benchmark]: TraceAbstraction took 554.97ms. Allocated memory is still 96.5MB. Free memory was 56.5MB in the beginning and 67.0MB in the end (delta: -10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 17:39:45,688 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 56.6MB. Free memory was 38.5MB in the beginning and 38.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1400.20ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 32.5MB in the beginning and 46.0MB in the end (delta: -13.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 126.34ms. Allocated memory is still 73.4MB. Free memory was 46.0MB 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 136.93ms. Allocated memory is still 73.4MB. Free memory was 41.5MB in the beginning and 36.6MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1830.60ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 36.6MB in the beginning and 56.5MB in the end (delta: -20.0MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * TraceAbstraction took 554.97ms. Allocated memory is still 96.5MB. Free memory was 56.5MB in the beginning and 67.0MB in the end (delta: -10.5MB). Peak memory consumption was 16.8MB. 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 17:39:45,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0963d0a4-9cc9-413d-a421-b36b9ba1f35e/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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable