./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label42+token_ring.02.cil-1.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_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/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_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label42+token_ring.02.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/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_f50bdda1-c614-4f25-a55c-70be3871fb95/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 6e28c81ffc5a1b93c1edca1581014bee1ba1c062c6df3b7a8a783721ae21bc12 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:05:52,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:05:52,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:05:52,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:05:52,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:05:52,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:05:52,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:05:52,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:05:52,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:05:52,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:05:52,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:05:52,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:05:52,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:05:52,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:05:52,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:05:52,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:05:52,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:05:52,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:05:52,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:05:52,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:05:52,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:05:52,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:05:52,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:05:52,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:05:52,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:05:52,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:05:52,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:05:52,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:05:52,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:05:52,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:05:52,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:05:52,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:05:52,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:05:52,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:05:52,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:05:52,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:05:52,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:05:52,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:05:52,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:05:52,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:05:52,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:05:52,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:05:52,830 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:05:52,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:05:52,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:05:52,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:05:52,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:05:52,838 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:05:52,838 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:05:52,838 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:05:52,839 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:05:52,839 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:05:52,839 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:05:52,839 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:05:52,840 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:05:52,840 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:05:52,840 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:05:52,840 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:05:52,840 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:05:52,841 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:05:52,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:05:52,842 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:05:52,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:05:52,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:05:52,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:05:52,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:05:52,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:05:52,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:05:52,843 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:05:52,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:05:52,843 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:05:52,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:05:52,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:05:52,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:05:52,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:05:52,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:05:52,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:05:52,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:05:52,845 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:05:52,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:05:52,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:05:52,845 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:05:52,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:05:52,846 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_f50bdda1-c614-4f25-a55c-70be3871fb95/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e28c81ffc5a1b93c1edca1581014bee1ba1c062c6df3b7a8a783721ae21bc12 [2021-11-23 17:05:53,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:05:53,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:05:53,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:05:53,173 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:05:53,174 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:05:53,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label42+token_ring.02.cil-1.c [2021-11-23 17:05:53,246 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/data/97f426295/4d3f58cb3a6447d39f2b28fe8fb80fc3/FLAGa9e88ca64 [2021-11-23 17:05:54,263 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:05:54,264 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/sv-benchmarks/c/combinations/Problem05_label42+token_ring.02.cil-1.c [2021-11-23 17:05:54,322 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/data/97f426295/4d3f58cb3a6447d39f2b28fe8fb80fc3/FLAGa9e88ca64 [2021-11-23 17:05:54,606 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/data/97f426295/4d3f58cb3a6447d39f2b28fe8fb80fc3 [2021-11-23 17:05:54,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:05:54,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:05:54,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:05:54,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:05:54,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:05:54,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:05:54" (1/1) ... [2021-11-23 17:05:54,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79a141f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:54, skipping insertion in model container [2021-11-23 17:05:54,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:05:54" (1/1) ... [2021-11-23 17:05:54,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:05:54,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:05:57,085 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_f50bdda1-c614-4f25-a55c-70be3871fb95/sv-benchmarks/c/combinations/Problem05_label42+token_ring.02.cil-1.c[378560,378573] [2021-11-23 17:05:57,123 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_f50bdda1-c614-4f25-a55c-70be3871fb95/sv-benchmarks/c/combinations/Problem05_label42+token_ring.02.cil-1.c[383339,383352] [2021-11-23 17:05:57,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:05:57,347 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:05:58,614 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_f50bdda1-c614-4f25-a55c-70be3871fb95/sv-benchmarks/c/combinations/Problem05_label42+token_ring.02.cil-1.c[378560,378573] [2021-11-23 17:05:58,622 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_f50bdda1-c614-4f25-a55c-70be3871fb95/sv-benchmarks/c/combinations/Problem05_label42+token_ring.02.cil-1.c[383339,383352] [2021-11-23 17:05:58,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:05:58,715 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:05:58,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:58 WrapperNode [2021-11-23 17:05:58,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:05:58,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:05:58,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:05:58,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:05:58,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:58" (1/1) ... [2021-11-23 17:05:58,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:58" (1/1) ... [2021-11-23 17:05:59,483 INFO L137 Inliner]: procedures = 48, calls = 47, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 12619 [2021-11-23 17:05:59,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:05:59,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:05:59,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:05:59,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:05:59,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:58" (1/1) ... [2021-11-23 17:05:59,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:58" (1/1) ... [2021-11-23 17:05:59,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:58" (1/1) ... [2021-11-23 17:05:59,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:58" (1/1) ... [2021-11-23 17:05:59,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:58" (1/1) ... [2021-11-23 17:05:59,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:58" (1/1) ... [2021-11-23 17:05:59,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:58" (1/1) ... [2021-11-23 17:05:59,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:06:00,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:06:00,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:06:00,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:06:00,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:05:58" (1/1) ... [2021-11-23 17:06:00,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:06:00,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:06:00,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:06:00,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:06:00,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:06:00,138 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:06:00,138 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:06:00,138 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:06:00,139 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:06:00,139 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:06:00,139 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:06:00,139 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:06:00,139 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:06:00,139 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:06:00,140 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:06:00,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:06:00,140 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:06:00,140 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:06:00,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:06:00,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:06:00,282 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:06:00,298 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:06:07,972 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:06:08,067 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 17:06:08,075 INFO L158 Benchmark]: Toolchain (without parser) took 13459.37ms. Allocated memory was 96.5MB in the beginning and 973.1MB in the end (delta: 876.6MB). Free memory was 42.0MB in the beginning and 567.3MB in the end (delta: -525.3MB). Peak memory consumption was 351.4MB. Max. memory is 16.1GB. [2021-11-23 17:06:08,075 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 96.5MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:06:08,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4099.37ms. Allocated memory was 96.5MB in the beginning and 165.7MB in the end (delta: 69.2MB). Free memory was 41.7MB in the beginning and 45.9MB in the end (delta: -4.2MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. [2021-11-23 17:06:08,080 INFO L158 Benchmark]: Boogie Procedure Inliner took 767.16ms. Allocated memory was 165.7MB in the beginning and 243.3MB in the end (delta: 77.6MB). Free memory was 45.9MB in the beginning and 121.7MB in the end (delta: -75.8MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2021-11-23 17:06:08,081 INFO L158 Benchmark]: Boogie Preprocessor took 531.93ms. Allocated memory is still 243.3MB. Free memory was 121.7MB in the beginning and 107.6MB in the end (delta: 14.1MB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. [2021-11-23 17:06:08,082 INFO L158 Benchmark]: RCFGBuilder took 8053.41ms. Allocated memory was 243.3MB in the beginning and 973.1MB in the end (delta: 729.8MB). Free memory was 107.6MB in the beginning and 567.3MB in the end (delta: -459.7MB). Peak memory consumption was 269.7MB. Max. memory is 16.1GB. [2021-11-23 17:06:08,092 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 96.5MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4099.37ms. Allocated memory was 96.5MB in the beginning and 165.7MB in the end (delta: 69.2MB). Free memory was 41.7MB in the beginning and 45.9MB in the end (delta: -4.2MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 767.16ms. Allocated memory was 165.7MB in the beginning and 243.3MB in the end (delta: 77.6MB). Free memory was 45.9MB in the beginning and 121.7MB in the end (delta: -75.8MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 531.93ms. Allocated memory is still 243.3MB. Free memory was 121.7MB in the beginning and 107.6MB in the end (delta: 14.1MB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. * RCFGBuilder took 8053.41ms. Allocated memory was 243.3MB in the beginning and 973.1MB in the end (delta: 729.8MB). Free memory was 107.6MB in the beginning and 567.3MB in the end (delta: -459.7MB). Peak memory consumption was 269.7MB. 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 17:06:08,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/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_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/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_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label42+token_ring.02.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/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_f50bdda1-c614-4f25-a55c-70be3871fb95/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 6e28c81ffc5a1b93c1edca1581014bee1ba1c062c6df3b7a8a783721ae21bc12 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:06:10,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:06:10,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:06:10,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:06:10,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:06:10,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:06:10,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:06:10,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:06:10,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:06:10,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:06:10,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:06:10,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:06:10,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:06:10,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:06:10,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:06:10,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:06:10,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:06:10,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:06:10,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:06:10,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:06:10,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:06:10,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:06:10,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:06:10,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:06:10,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:06:10,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:06:10,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:06:10,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:06:10,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:06:10,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:06:10,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:06:10,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:06:10,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:06:10,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:06:10,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:06:10,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:06:10,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:06:10,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:06:10,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:06:10,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:06:10,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:06:10,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:06:10,890 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:06:10,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:06:10,892 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:06:10,892 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:06:10,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:06:10,893 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:06:10,894 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:06:10,894 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:06:10,894 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:06:10,894 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:06:10,896 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:06:10,896 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:06:10,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:06:10,898 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:06:10,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:06:10,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:06:10,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:06:10,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:06:10,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:06:10,899 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:06:10,900 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:06:10,900 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:06:10,900 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:06:10,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:06:10,901 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:06:10,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:06:10,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:06:10,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:06:10,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:06:10,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:06:10,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:06:10,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:06:10,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:06:10,903 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:06:10,903 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:06:10,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:06:10,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:06:10,904 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:06:10,904 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_f50bdda1-c614-4f25-a55c-70be3871fb95/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e28c81ffc5a1b93c1edca1581014bee1ba1c062c6df3b7a8a783721ae21bc12 [2021-11-23 17:06:11,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:06:11,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:06:11,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:06:11,329 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:06:11,329 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:06:11,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label42+token_ring.02.cil-1.c [2021-11-23 17:06:11,395 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/data/72b2a07fe/61e7084ac2b5460db399c81e45190cba/FLAGe87285097 [2021-11-23 17:06:12,545 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:06:12,546 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/sv-benchmarks/c/combinations/Problem05_label42+token_ring.02.cil-1.c [2021-11-23 17:06:12,603 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/data/72b2a07fe/61e7084ac2b5460db399c81e45190cba/FLAGe87285097 [2021-11-23 17:06:12,762 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/data/72b2a07fe/61e7084ac2b5460db399c81e45190cba [2021-11-23 17:06:12,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:06:12,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:06:12,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:06:12,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:06:12,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:06:12,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:06:12" (1/1) ... [2021-11-23 17:06:12,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30931857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:12, skipping insertion in model container [2021-11-23 17:06:12,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:06:12" (1/1) ... [2021-11-23 17:06:12,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:06:13,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:06:15,600 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_f50bdda1-c614-4f25-a55c-70be3871fb95/sv-benchmarks/c/combinations/Problem05_label42+token_ring.02.cil-1.c[378560,378573] [2021-11-23 17:06:15,635 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_f50bdda1-c614-4f25-a55c-70be3871fb95/sv-benchmarks/c/combinations/Problem05_label42+token_ring.02.cil-1.c[383339,383352] [2021-11-23 17:06:15,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:06:15,858 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:06:17,127 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_f50bdda1-c614-4f25-a55c-70be3871fb95/sv-benchmarks/c/combinations/Problem05_label42+token_ring.02.cil-1.c[378560,378573] [2021-11-23 17:06:17,140 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_f50bdda1-c614-4f25-a55c-70be3871fb95/sv-benchmarks/c/combinations/Problem05_label42+token_ring.02.cil-1.c[383339,383352] [2021-11-23 17:06:17,164 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:06:17,244 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:06:17,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:17 WrapperNode [2021-11-23 17:06:17,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:06:17,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:06:17,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:06:17,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:06:17,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:17" (1/1) ... [2021-11-23 17:06:17,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:17" (1/1) ... [2021-11-23 17:06:17,840 INFO L137 Inliner]: procedures = 49, calls = 47, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 12597 [2021-11-23 17:06:17,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:06:17,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:06:17,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:06:17,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:06:17,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:17" (1/1) ... [2021-11-23 17:06:17,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:17" (1/1) ... [2021-11-23 17:06:17,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:17" (1/1) ... [2021-11-23 17:06:17,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:17" (1/1) ... [2021-11-23 17:06:18,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:17" (1/1) ... [2021-11-23 17:06:18,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:17" (1/1) ... [2021-11-23 17:06:18,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:17" (1/1) ... [2021-11-23 17:06:18,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:06:18,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:06:18,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:06:18,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:06:18,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:17" (1/1) ... [2021-11-23 17:06:18,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:06:18,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:06:18,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:06:18,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:06:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:06:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:06:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:06:18,731 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:06:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:06:18,732 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:06:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:06:18,732 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:06:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:06:18,732 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:06:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:06:18,732 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:06:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:06:18,733 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:06:18,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:06:18,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:06:18,898 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:06:18,900 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:06:29,245 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:06:29,279 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:06:29,279 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-23 17:06:29,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:06:29 BoogieIcfgContainer [2021-11-23 17:06:29,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:06:29,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:06:29,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:06:29,290 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:06:29,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:06:12" (1/3) ... [2021-11-23 17:06:29,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6968d685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:06:29, skipping insertion in model container [2021-11-23 17:06:29,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:17" (2/3) ... [2021-11-23 17:06:29,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6968d685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:06:29, skipping insertion in model container [2021-11-23 17:06:29,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:06:29" (3/3) ... [2021-11-23 17:06:29,294 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.02.cil-1.c [2021-11-23 17:06:29,299 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:06:29,300 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 17:06:29,362 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:06:29,370 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 17:06:29,370 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 17:06:29,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 2315 states, 2290 states have (on average 1.8572052401746726) internal successors, (4253), 2293 states have internal predecessors, (4253), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-23 17:06:29,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-23 17:06:29,453 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:06:29,454 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] [2021-11-23 17:06:29,455 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:06:29,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:06:29,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1170312139, now seen corresponding path program 1 times [2021-11-23 17:06:29,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:06:29,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221069058] [2021-11-23 17:06:29,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:06:29,479 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:06:29,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:06:29,488 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:06:29,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:06:29,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 17:06:29,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:06:29,746 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 17:06:29,750 INFO L158 Benchmark]: Toolchain (without parser) took 16981.08ms. Allocated memory was 81.8MB in the beginning and 796.9MB in the end (delta: 715.1MB). Free memory was 50.0MB in the beginning and 496.3MB in the end (delta: -446.3MB). Peak memory consumption was 267.0MB. Max. memory is 16.1GB. [2021-11-23 17:06:29,751 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory was 42.0MB in the beginning and 41.9MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:06:29,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4475.08ms. Allocated memory was 81.8MB in the beginning and 199.2MB in the end (delta: 117.4MB). Free memory was 50.0MB in the beginning and 72.8MB in the end (delta: -22.8MB). Peak memory consumption was 99.1MB. Max. memory is 16.1GB. [2021-11-23 17:06:29,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 595.17ms. Allocated memory is still 199.2MB. Free memory was 72.8MB in the beginning and 65.4MB in the end (delta: 7.4MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2021-11-23 17:06:29,753 INFO L158 Benchmark]: Boogie Preprocessor took 693.06ms. Allocated memory was 199.2MB in the beginning and 398.5MB in the end (delta: 199.2MB). Free memory was 65.4MB in the beginning and 246.7MB in the end (delta: -181.4MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2021-11-23 17:06:29,754 INFO L158 Benchmark]: RCFGBuilder took 10748.30ms. Allocated memory was 398.5MB in the beginning and 796.9MB in the end (delta: 398.5MB). Free memory was 246.7MB in the beginning and 521.5MB in the end (delta: -274.7MB). Peak memory consumption was 401.6MB. Max. memory is 16.1GB. [2021-11-23 17:06:29,755 INFO L158 Benchmark]: TraceAbstraction took 461.25ms. Allocated memory is still 796.9MB. Free memory was 520.4MB in the beginning and 496.3MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-23 17:06:29,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory was 42.0MB in the beginning and 41.9MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4475.08ms. Allocated memory was 81.8MB in the beginning and 199.2MB in the end (delta: 117.4MB). Free memory was 50.0MB in the beginning and 72.8MB in the end (delta: -22.8MB). Peak memory consumption was 99.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 595.17ms. Allocated memory is still 199.2MB. Free memory was 72.8MB in the beginning and 65.4MB in the end (delta: 7.4MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 693.06ms. Allocated memory was 199.2MB in the beginning and 398.5MB in the end (delta: 199.2MB). Free memory was 65.4MB in the beginning and 246.7MB in the end (delta: -181.4MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. * RCFGBuilder took 10748.30ms. Allocated memory was 398.5MB in the beginning and 796.9MB in the end (delta: 398.5MB). Free memory was 246.7MB in the beginning and 521.5MB in the end (delta: -274.7MB). Peak memory consumption was 401.6MB. Max. memory is 16.1GB. * TraceAbstraction took 461.25ms. Allocated memory is still 796.9MB. Free memory was 520.4MB in the beginning and 496.3MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. 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 17:06:29,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50bdda1-c614-4f25-a55c-70be3871fb95/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