./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.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_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/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_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/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_5517f026-558e-4422-a0a5-3dd39c518c59/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 6167950643e67727b303c7b99fc0839aa2067301d926538b67f3f160c480440e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:06:56,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:06:56,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:06:56,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:06:56,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:06:56,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:06:56,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:06:56,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:06:56,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:06:56,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:06:56,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:06:56,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:06:56,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:06:56,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:06:56,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:06:56,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:06:56,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:06:56,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:06:56,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:06:56,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:06:56,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:06:56,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:06:56,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:06:56,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:06:56,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:06:56,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:06:56,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:06:56,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:06:56,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:06:56,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:06:56,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:06:56,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:06:56,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:06:56,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:06:56,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:06:56,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:06:56,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:06:56,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:06:56,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:06:56,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:06:56,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:06:56,461 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:06:56,510 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:06:56,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:06:56,511 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:06:56,511 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:06:56,519 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:06:56,519 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:06:56,519 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:06:56,520 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:06:56,520 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:06:56,520 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:06:56,521 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:06:56,522 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:06:56,522 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:06:56,522 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:06:56,522 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:06:56,522 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:06:56,523 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:06:56,523 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:06:56,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:06:56,524 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:06:56,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:06:56,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:06:56,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:06:56,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:06:56,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:06:56,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:06:56,526 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:06:56,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:06:56,526 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:06:56,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:06:56,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:06:56,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:06:56,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:06:56,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:06:56,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:06:56,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:06:56,528 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:06:56,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:06:56,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:06:56,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:06:56,529 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:06:56,529 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_5517f026-558e-4422-a0a5-3dd39c518c59/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6167950643e67727b303c7b99fc0839aa2067301d926538b67f3f160c480440e [2021-11-23 17:06:56,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:06:56,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:06:56,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:06:56,899 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:06:56,900 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:06:56,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c [2021-11-23 17:06:56,985 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/data/10850907e/dba81d3a7ca7449aae10e34b8ddc6503/FLAG5a127351f [2021-11-23 17:06:58,108 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:06:58,108 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c [2021-11-23 17:06:58,182 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/data/10850907e/dba81d3a7ca7449aae10e34b8ddc6503/FLAG5a127351f [2021-11-23 17:06:58,331 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/data/10850907e/dba81d3a7ca7449aae10e34b8ddc6503 [2021-11-23 17:06:58,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:06:58,339 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:06:58,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:06:58,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:06:58,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:06:58,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:06:58" (1/1) ... [2021-11-23 17:06:58,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7301dff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:58, skipping insertion in model container [2021-11-23 17:06:58,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:06:58" (1/1) ... [2021-11-23 17:06:58,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:06:58,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:07:00,971 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_5517f026-558e-4422-a0a5-3dd39c518c59/sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c[376251,376264] [2021-11-23 17:07:01,010 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_5517f026-558e-4422-a0a5-3dd39c518c59/sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c[383339,383352] [2021-11-23 17:07:01,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:07:01,463 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:07:02,731 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_5517f026-558e-4422-a0a5-3dd39c518c59/sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c[376251,376264] [2021-11-23 17:07:02,743 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_5517f026-558e-4422-a0a5-3dd39c518c59/sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c[383339,383352] [2021-11-23 17:07:02,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:07:02,872 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:07:02,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:02 WrapperNode [2021-11-23 17:07:02,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:07:02,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:07:02,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:07:02,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:07:02,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:02" (1/1) ... [2021-11-23 17:07:03,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:02" (1/1) ... [2021-11-23 17:07:03,557 INFO L137 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13257 [2021-11-23 17:07:03,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:07:03,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:07:03,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:07:03,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:07:03,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:02" (1/1) ... [2021-11-23 17:07:03,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:02" (1/1) ... [2021-11-23 17:07:03,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:02" (1/1) ... [2021-11-23 17:07:03,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:02" (1/1) ... [2021-11-23 17:07:04,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:02" (1/1) ... [2021-11-23 17:07:04,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:02" (1/1) ... [2021-11-23 17:07:04,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:02" (1/1) ... [2021-11-23 17:07:04,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:07:04,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:07:04,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:07:04,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:07:04,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:02" (1/1) ... [2021-11-23 17:07:04,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:07:04,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:07:04,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:07:04,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:07:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:07:04,454 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:07:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:07:04,454 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:07:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:07:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:07:04,455 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:07:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:07:04,455 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:07:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:07:04,455 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:07:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:07:04,456 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:07:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:07:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:07:04,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:07:04,606 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:07:04,608 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:07:13,026 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:07:13,169 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 17:07:13,175 INFO L158 Benchmark]: Toolchain (without parser) took 14834.24ms. Allocated memory was 117.4MB in the beginning and 836.8MB in the end (delta: 719.3MB). Free memory was 67.7MB in the beginning and 340.4MB in the end (delta: -272.7MB). Peak memory consumption was 455.9MB. Max. memory is 16.1GB. [2021-11-23 17:07:13,175 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:07:13,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4532.19ms. Allocated memory was 117.4MB in the beginning and 188.7MB in the end (delta: 71.3MB). Free memory was 67.7MB in the beginning and 60.4MB in the end (delta: 7.3MB). Peak memory consumption was 100.2MB. Max. memory is 16.1GB. [2021-11-23 17:07:13,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 683.52ms. Allocated memory was 188.7MB in the beginning and 266.3MB in the end (delta: 77.6MB). Free memory was 60.4MB in the beginning and 125.3MB in the end (delta: -64.9MB). Peak memory consumption was 69.4MB. Max. memory is 16.1GB. [2021-11-23 17:07:13,179 INFO L158 Benchmark]: Boogie Preprocessor took 795.20ms. Allocated memory is still 266.3MB. Free memory was 125.3MB in the beginning and 105.5MB in the end (delta: 19.8MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. [2021-11-23 17:07:13,180 INFO L158 Benchmark]: RCFGBuilder took 8818.09ms. Allocated memory was 266.3MB in the beginning and 836.8MB in the end (delta: 570.4MB). Free memory was 105.5MB in the beginning and 340.4MB in the end (delta: -234.9MB). Peak memory consumption was 345.0MB. Max. memory is 16.1GB. [2021-11-23 17:07:13,184 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4532.19ms. Allocated memory was 117.4MB in the beginning and 188.7MB in the end (delta: 71.3MB). Free memory was 67.7MB in the beginning and 60.4MB in the end (delta: 7.3MB). Peak memory consumption was 100.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 683.52ms. Allocated memory was 188.7MB in the beginning and 266.3MB in the end (delta: 77.6MB). Free memory was 60.4MB in the beginning and 125.3MB in the end (delta: -64.9MB). Peak memory consumption was 69.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 795.20ms. Allocated memory is still 266.3MB. Free memory was 125.3MB in the beginning and 105.5MB in the end (delta: 19.8MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. * RCFGBuilder took 8818.09ms. Allocated memory was 266.3MB in the beginning and 836.8MB in the end (delta: 570.4MB). Free memory was 105.5MB in the beginning and 340.4MB in the end (delta: -234.9MB). Peak memory consumption was 345.0MB. 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 17:07:13,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/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_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/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_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/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_5517f026-558e-4422-a0a5-3dd39c518c59/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 6167950643e67727b303c7b99fc0839aa2067301d926538b67f3f160c480440e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:07:16,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:07:16,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:07:16,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:07:16,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:07:16,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:07:16,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:07:16,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:07:16,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:07:16,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:07:16,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:07:16,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:07:16,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:07:16,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:07:16,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:07:16,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:07:16,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:07:16,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:07:16,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:07:16,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:07:16,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:07:16,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:07:16,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:07:16,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:07:16,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:07:16,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:07:16,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:07:16,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:07:16,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:07:16,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:07:16,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:07:16,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:07:16,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:07:16,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:07:16,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:07:16,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:07:16,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:07:16,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:07:16,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:07:16,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:07:16,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:07:16,159 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:07:16,202 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:07:16,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:07:16,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:07:16,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:07:16,207 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:07:16,207 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:07:16,207 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:07:16,207 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:07:16,208 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:07:16,208 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:07:16,209 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:07:16,209 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:07:16,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:07:16,212 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:07:16,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:07:16,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:07:16,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:07:16,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:07:16,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:07:16,213 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:07:16,213 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:07:16,214 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:07:16,214 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:07:16,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:07:16,214 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:07:16,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:07:16,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:07:16,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:07:16,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:07:16,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:07:16,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:07:16,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:07:16,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:07:16,217 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:07:16,217 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:07:16,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:07:16,218 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:07:16,218 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:07:16,219 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_5517f026-558e-4422-a0a5-3dd39c518c59/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6167950643e67727b303c7b99fc0839aa2067301d926538b67f3f160c480440e [2021-11-23 17:07:16,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:07:16,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:07:16,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:07:16,672 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:07:16,673 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:07:16,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c [2021-11-23 17:07:16,758 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/data/5451e89d9/cc0540d3bb684ff991071ca3c4ea64e8/FLAG1f6927a5c [2021-11-23 17:07:18,078 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:07:18,081 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c [2021-11-23 17:07:18,139 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/data/5451e89d9/cc0540d3bb684ff991071ca3c4ea64e8/FLAG1f6927a5c [2021-11-23 17:07:18,264 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/data/5451e89d9/cc0540d3bb684ff991071ca3c4ea64e8 [2021-11-23 17:07:18,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:07:18,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:07:18,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:07:18,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:07:18,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:07:18,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:07:18" (1/1) ... [2021-11-23 17:07:18,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@971a40e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:18, skipping insertion in model container [2021-11-23 17:07:18,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:07:18" (1/1) ... [2021-11-23 17:07:18,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:07:18,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:07:21,145 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_5517f026-558e-4422-a0a5-3dd39c518c59/sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c[376251,376264] [2021-11-23 17:07:21,196 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_5517f026-558e-4422-a0a5-3dd39c518c59/sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c[383339,383352] [2021-11-23 17:07:21,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:07:21,602 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:07:22,909 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_5517f026-558e-4422-a0a5-3dd39c518c59/sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c[376251,376264] [2021-11-23 17:07:22,922 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_5517f026-558e-4422-a0a5-3dd39c518c59/sv-benchmarks/c/combinations/Problem05_label41+token_ring.13.cil-2.c[383339,383352] [2021-11-23 17:07:22,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:07:23,104 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:07:23,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:23 WrapperNode [2021-11-23 17:07:23,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:07:23,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:07:23,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:07:23,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:07:23,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:23" (1/1) ... [2021-11-23 17:07:23,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:23" (1/1) ... [2021-11-23 17:07:23,832 INFO L137 Inliner]: procedures = 71, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13213 [2021-11-23 17:07:23,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:07:23,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:07:23,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:07:23,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:07:23,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:23" (1/1) ... [2021-11-23 17:07:23,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:23" (1/1) ... [2021-11-23 17:07:23,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:23" (1/1) ... [2021-11-23 17:07:23,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:23" (1/1) ... [2021-11-23 17:07:24,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:23" (1/1) ... [2021-11-23 17:07:24,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:23" (1/1) ... [2021-11-23 17:07:24,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:23" (1/1) ... [2021-11-23 17:07:24,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:07:24,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:07:24,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:07:24,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:07:24,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:23" (1/1) ... [2021-11-23 17:07:24,659 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:07:24,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:07:24,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:07:24,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:07:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:07:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:07:24,878 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:07:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:07:24,878 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:07:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:07:24,878 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:07:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:07:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:07:24,879 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:07:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:07:24,879 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:07:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:07:24,880 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:07:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:07:24,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:07:25,149 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:07:25,151 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:07:36,861 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:07:36,906 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:07:36,907 INFO L301 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-23 17:07:36,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:07:36 BoogieIcfgContainer [2021-11-23 17:07:36,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:07:36,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:07:36,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:07:36,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:07:36,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:07:18" (1/3) ... [2021-11-23 17:07:36,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31fd7fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:07:36, skipping insertion in model container [2021-11-23 17:07:36,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:23" (2/3) ... [2021-11-23 17:07:36,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31fd7fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:07:36, skipping insertion in model container [2021-11-23 17:07:36,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:07:36" (3/3) ... [2021-11-23 17:07:36,924 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label41+token_ring.13.cil-2.c [2021-11-23 17:07:36,931 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:07:36,931 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 17:07:37,010 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:07:37,019 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 17:07:37,019 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 17:07:37,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-11-23 17:07:37,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-23 17:07:37,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:07:37,169 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:07:37,170 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:07:37,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:07:37,177 INFO L85 PathProgramCache]: Analyzing trace with hash -521467325, now seen corresponding path program 1 times [2021-11-23 17:07:37,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:07:37,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715635062] [2021-11-23 17:07:37,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:07:37,197 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:07:37,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:07:37,200 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:07:37,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:07:37,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 17:07:37,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:07:37,482 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 17:07:37,486 INFO L158 Benchmark]: Toolchain (without parser) took 19216.16ms. Allocated memory was 75.5MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 37.7MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 352.5MB. Max. memory is 16.1GB. [2021-11-23 17:07:37,487 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 56.6MB. Free memory was 37.6MB in the beginning and 37.6MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:07:37,488 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4834.84ms. Allocated memory was 75.5MB in the beginning and 297.8MB in the end (delta: 222.3MB). Free memory was 37.5MB in the beginning and 201.9MB in the end (delta: -164.4MB). Peak memory consumption was 99.2MB. Max. memory is 16.1GB. [2021-11-23 17:07:37,489 INFO L158 Benchmark]: Boogie Procedure Inliner took 725.71ms. Allocated memory is still 297.8MB. Free memory was 201.9MB in the beginning and 165.3MB in the end (delta: 36.6MB). Peak memory consumption was 116.7MB. Max. memory is 16.1GB. [2021-11-23 17:07:37,489 INFO L158 Benchmark]: Boogie Preprocessor took 801.06ms. Allocated memory was 297.8MB in the beginning and 595.6MB in the end (delta: 297.8MB). Free memory was 165.3MB in the beginning and 428.6MB in the end (delta: -263.3MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2021-11-23 17:07:37,490 INFO L158 Benchmark]: RCFGBuilder took 12277.62ms. Allocated memory was 595.6MB in the beginning and 2.1GB in the end (delta: 1.5GB). Free memory was 428.6MB in the beginning and 1.7GB in the end (delta: -1.3GB). Peak memory consumption was 210.5MB. Max. memory is 16.1GB. [2021-11-23 17:07:37,491 INFO L158 Benchmark]: TraceAbstraction took 569.06ms. Allocated memory is still 2.1GB. Free memory was 1.7GB in the beginning and 1.7GB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2021-11-23 17:07:37,495 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 56.6MB. Free memory was 37.6MB in the beginning and 37.6MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4834.84ms. Allocated memory was 75.5MB in the beginning and 297.8MB in the end (delta: 222.3MB). Free memory was 37.5MB in the beginning and 201.9MB in the end (delta: -164.4MB). Peak memory consumption was 99.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 725.71ms. Allocated memory is still 297.8MB. Free memory was 201.9MB in the beginning and 165.3MB in the end (delta: 36.6MB). Peak memory consumption was 116.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 801.06ms. Allocated memory was 297.8MB in the beginning and 595.6MB in the end (delta: 297.8MB). Free memory was 165.3MB in the beginning and 428.6MB in the end (delta: -263.3MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. * RCFGBuilder took 12277.62ms. Allocated memory was 595.6MB in the beginning and 2.1GB in the end (delta: 1.5GB). Free memory was 428.6MB in the beginning and 1.7GB in the end (delta: -1.3GB). Peak memory consumption was 210.5MB. Max. memory is 16.1GB. * TraceAbstraction took 569.06ms. Allocated memory is still 2.1GB. Free memory was 1.7GB in the beginning and 1.7GB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. 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 17:07:37,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f026-558e-4422-a0a5-3dd39c518c59/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