./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label47+token_ring.10.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_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/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_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label47+token_ring.10.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/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_054937c3-e446-4117-ae2e-2481ff6cbf8d/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 d659e8678e554595f4e384a4607241da3abd2c1673f83f24796966e0172bfb33 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:24:02,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:24:02,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:24:02,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:24:02,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:24:02,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:24:02,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:24:02,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:24:02,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:24:02,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:24:02,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:24:02,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:24:02,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:24:02,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:24:02,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:24:02,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:24:02,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:24:02,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:24:02,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:24:02,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:24:02,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:24:02,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:24:02,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:24:02,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:24:02,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:24:02,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:24:02,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:24:02,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:24:02,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:24:02,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:24:02,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:24:02,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:24:02,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:24:02,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:24:02,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:24:02,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:24:02,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:24:02,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:24:02,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:24:02,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:24:02,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:24:02,732 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:24:02,774 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:24:02,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:24:02,781 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:24:02,782 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:24:02,783 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:24:02,783 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:24:02,783 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:24:02,784 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:24:02,784 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:24:02,784 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:24:02,785 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:24:02,786 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:24:02,786 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:24:02,786 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:24:02,787 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:24:02,787 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:24:02,787 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:24:02,788 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:24:02,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:24:02,789 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:24:02,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:24:02,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:24:02,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:24:02,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:24:02,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:24:02,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:24:02,792 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:24:02,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:24:02,793 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:24:02,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:24:02,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:24:02,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:24:02,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:24:02,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:24:02,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:24:02,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:24:02,796 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:24:02,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:24:02,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:24:02,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:24:02,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:24:02,797 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_054937c3-e446-4117-ae2e-2481ff6cbf8d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d659e8678e554595f4e384a4607241da3abd2c1673f83f24796966e0172bfb33 [2021-11-23 17:24:03,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:24:03,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:24:03,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:24:03,139 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:24:03,139 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:24:03,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label47+token_ring.10.cil-2.c [2021-11-23 17:24:03,212 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/data/c02949b6c/a1b1b9d110294ac3904461d819ecf0f1/FLAGdb414192d [2021-11-23 17:24:04,236 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:24:04,238 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/sv-benchmarks/c/combinations/Problem05_label47+token_ring.10.cil-2.c [2021-11-23 17:24:04,305 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/data/c02949b6c/a1b1b9d110294ac3904461d819ecf0f1/FLAGdb414192d [2021-11-23 17:24:04,563 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/data/c02949b6c/a1b1b9d110294ac3904461d819ecf0f1 [2021-11-23 17:24:04,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:24:04,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:24:04,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:24:04,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:24:04,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:24:04,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:24:04" (1/1) ... [2021-11-23 17:24:04,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@98fb553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:04, skipping insertion in model container [2021-11-23 17:24:04,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:24:04" (1/1) ... [2021-11-23 17:24:04,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:24:04,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:24:07,462 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_054937c3-e446-4117-ae2e-2481ff6cbf8d/sv-benchmarks/c/combinations/Problem05_label47+token_ring.10.cil-2.c[377612,377625] [2021-11-23 17:24:07,500 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/sv-benchmarks/c/combinations/Problem05_label47+token_ring.10.cil-2.c[383339,383352] [2021-11-23 17:24:07,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:24:07,866 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:24:09,127 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_054937c3-e446-4117-ae2e-2481ff6cbf8d/sv-benchmarks/c/combinations/Problem05_label47+token_ring.10.cil-2.c[377612,377625] [2021-11-23 17:24:09,138 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_054937c3-e446-4117-ae2e-2481ff6cbf8d/sv-benchmarks/c/combinations/Problem05_label47+token_ring.10.cil-2.c[383339,383352] [2021-11-23 17:24:09,187 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:24:09,273 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:24:09,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:09 WrapperNode [2021-11-23 17:24:09,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:24:09,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:24:09,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:24:09,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:24:09,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:09" (1/1) ... [2021-11-23 17:24:09,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:09" (1/1) ... [2021-11-23 17:24:09,826 INFO L137 Inliner]: procedures = 64, calls = 71, calls flagged for inlining = 42, calls inlined = 42, statements flattened = 13083 [2021-11-23 17:24:09,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:24:09,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:24:09,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:24:09,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:24:09,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:09" (1/1) ... [2021-11-23 17:24:09,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:09" (1/1) ... [2021-11-23 17:24:09,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:09" (1/1) ... [2021-11-23 17:24:09,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:09" (1/1) ... [2021-11-23 17:24:10,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:09" (1/1) ... [2021-11-23 17:24:10,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:09" (1/1) ... [2021-11-23 17:24:10,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:09" (1/1) ... [2021-11-23 17:24:10,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:24:10,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:24:10,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:24:10,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:24:10,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:09" (1/1) ... [2021-11-23 17:24:10,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:24:10,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:24:10,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:24:10,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:24:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:24:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:24:10,428 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:24:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:24:10,429 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:24:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:24:10,429 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:24:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:24:10,429 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:24:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:24:10,430 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:24:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:24:10,430 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:24:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:24:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:24:10,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:24:10,654 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:24:10,656 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:24:19,619 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:24:19,766 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 17:24:19,778 INFO L158 Benchmark]: Toolchain (without parser) took 15209.46ms. Allocated memory was 96.5MB in the beginning and 864.0MB in the end (delta: 767.6MB). Free memory was 48.3MB in the beginning and 453.3MB in the end (delta: -405.0MB). Peak memory consumption was 375.5MB. Max. memory is 16.1GB. [2021-11-23 17:24:19,779 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 96.5MB. Free memory is still 76.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:24:19,782 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4704.00ms. Allocated memory was 96.5MB in the beginning and 237.0MB in the end (delta: 140.5MB). Free memory was 48.3MB in the beginning and 108.6MB in the end (delta: -60.3MB). Peak memory consumption was 84.7MB. Max. memory is 16.1GB. [2021-11-23 17:24:19,784 INFO L158 Benchmark]: Boogie Procedure Inliner took 550.98ms. Allocated memory is still 237.0MB. Free memory was 108.6MB in the beginning and 101.0MB in the end (delta: 7.6MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. [2021-11-23 17:24:19,785 INFO L158 Benchmark]: Boogie Preprocessor took 507.02ms. Allocated memory is still 237.0MB. Free memory was 101.0MB in the beginning and 64.2MB in the end (delta: 36.7MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2021-11-23 17:24:19,787 INFO L158 Benchmark]: RCFGBuilder took 9440.62ms. Allocated memory was 237.0MB in the beginning and 864.0MB in the end (delta: 627.0MB). Free memory was 64.2MB in the beginning and 453.3MB in the end (delta: -389.1MB). Peak memory consumption was 251.7MB. Max. memory is 16.1GB. [2021-11-23 17:24:19,797 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 96.5MB. Free memory is still 76.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4704.00ms. Allocated memory was 96.5MB in the beginning and 237.0MB in the end (delta: 140.5MB). Free memory was 48.3MB in the beginning and 108.6MB in the end (delta: -60.3MB). Peak memory consumption was 84.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 550.98ms. Allocated memory is still 237.0MB. Free memory was 108.6MB in the beginning and 101.0MB in the end (delta: 7.6MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 507.02ms. Allocated memory is still 237.0MB. Free memory was 101.0MB in the beginning and 64.2MB in the end (delta: 36.7MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * RCFGBuilder took 9440.62ms. Allocated memory was 237.0MB in the beginning and 864.0MB in the end (delta: 627.0MB). Free memory was 64.2MB in the beginning and 453.3MB in the end (delta: -389.1MB). Peak memory consumption was 251.7MB. 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 17:24:19,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/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_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/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_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label47+token_ring.10.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/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_054937c3-e446-4117-ae2e-2481ff6cbf8d/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 d659e8678e554595f4e384a4607241da3abd2c1673f83f24796966e0172bfb33 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:24:22,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:24:22,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:24:22,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:24:22,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:24:22,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:24:22,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:24:22,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:24:22,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:24:22,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:24:22,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:24:22,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:24:22,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:24:22,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:24:22,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:24:22,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:24:22,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:24:22,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:24:22,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:24:22,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:24:22,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:24:22,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:24:22,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:24:22,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:24:22,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:24:22,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:24:22,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:24:22,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:24:22,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:24:22,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:24:22,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:24:22,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:24:22,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:24:22,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:24:22,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:24:22,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:24:22,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:24:22,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:24:22,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:24:22,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:24:22,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:24:22,929 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:24:22,958 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:24:22,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:24:22,959 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:24:22,959 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:24:22,959 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:24:22,960 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:24:22,960 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:24:22,960 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:24:22,960 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:24:22,961 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:24:22,961 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:24:22,961 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:24:22,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:24:22,962 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:24:22,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:24:22,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:24:22,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:24:22,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:24:22,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:24:22,963 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:24:22,963 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:24:22,964 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:24:22,964 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:24:22,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:24:22,964 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:24:22,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:24:22,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:24:22,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:24:22,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:24:22,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:24:22,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:24:22,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:24:22,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:24:22,966 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:24:22,966 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:24:22,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:24:22,966 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:24:22,967 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:24:22,967 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_054937c3-e446-4117-ae2e-2481ff6cbf8d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d659e8678e554595f4e384a4607241da3abd2c1673f83f24796966e0172bfb33 [2021-11-23 17:24:23,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:24:23,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:24:23,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:24:23,377 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:24:23,378 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:24:23,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label47+token_ring.10.cil-2.c [2021-11-23 17:24:23,443 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/data/c64895491/f560e4e7b69a424cb2239b2766a53340/FLAG2be75c5c1 [2021-11-23 17:24:24,510 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:24:24,510 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/sv-benchmarks/c/combinations/Problem05_label47+token_ring.10.cil-2.c [2021-11-23 17:24:24,577 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/data/c64895491/f560e4e7b69a424cb2239b2766a53340/FLAG2be75c5c1 [2021-11-23 17:24:24,809 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/data/c64895491/f560e4e7b69a424cb2239b2766a53340 [2021-11-23 17:24:24,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:24:24,816 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:24:24,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:24:24,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:24:24,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:24:24,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:24:24" (1/1) ... [2021-11-23 17:24:24,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@204150fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:24, skipping insertion in model container [2021-11-23 17:24:24,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:24:24" (1/1) ... [2021-11-23 17:24:24,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:24:25,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:24:27,704 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_054937c3-e446-4117-ae2e-2481ff6cbf8d/sv-benchmarks/c/combinations/Problem05_label47+token_ring.10.cil-2.c[377612,377625] [2021-11-23 17:24:27,741 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_054937c3-e446-4117-ae2e-2481ff6cbf8d/sv-benchmarks/c/combinations/Problem05_label47+token_ring.10.cil-2.c[383339,383352] [2021-11-23 17:24:28,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:24:28,110 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:24:29,479 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_054937c3-e446-4117-ae2e-2481ff6cbf8d/sv-benchmarks/c/combinations/Problem05_label47+token_ring.10.cil-2.c[377612,377625] [2021-11-23 17:24:29,524 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_054937c3-e446-4117-ae2e-2481ff6cbf8d/sv-benchmarks/c/combinations/Problem05_label47+token_ring.10.cil-2.c[383339,383352] [2021-11-23 17:24:29,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:24:29,633 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:24:29,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:29 WrapperNode [2021-11-23 17:24:29,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:24:29,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:24:29,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:24:29,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:24:29,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:29" (1/1) ... [2021-11-23 17:24:29,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:29" (1/1) ... [2021-11-23 17:24:30,230 INFO L137 Inliner]: procedures = 65, calls = 71, calls flagged for inlining = 42, calls inlined = 42, statements flattened = 13045 [2021-11-23 17:24:30,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:24:30,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:24:30,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:24:30,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:24:30,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:29" (1/1) ... [2021-11-23 17:24:30,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:29" (1/1) ... [2021-11-23 17:24:30,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:29" (1/1) ... [2021-11-23 17:24:30,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:29" (1/1) ... [2021-11-23 17:24:30,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:29" (1/1) ... [2021-11-23 17:24:30,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:29" (1/1) ... [2021-11-23 17:24:31,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:29" (1/1) ... [2021-11-23 17:24:31,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:24:31,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:24:31,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:24:31,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:24:31,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:29" (1/1) ... [2021-11-23 17:24:31,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:24:31,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:24:31,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:24:31,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:24:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:24:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:24:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:24:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:24:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:24:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:24:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:24:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:24:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:24:31,433 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:24:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:24:31,433 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:24:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:24:31,434 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:24:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:24:31,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:24:31,644 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:24:31,646 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:24:43,869 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:24:43,909 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:24:43,910 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-23 17:24:43,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:24:43 BoogieIcfgContainer [2021-11-23 17:24:43,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:24:43,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:24:43,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:24:43,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:24:43,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:24:24" (1/3) ... [2021-11-23 17:24:43,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2352916c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:24:43, skipping insertion in model container [2021-11-23 17:24:43,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:24:29" (2/3) ... [2021-11-23 17:24:43,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2352916c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:24:43, skipping insertion in model container [2021-11-23 17:24:43,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:24:43" (3/3) ... [2021-11-23 17:24:43,924 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.10.cil-2.c [2021-11-23 17:24:43,929 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:24:43,930 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 17:24:43,990 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:24:43,997 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 17:24:43,998 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 17:24:44,062 INFO L276 IsEmpty]: Start isEmpty. Operand has 2515 states, 2482 states have (on average 1.8456889605157132) internal successors, (4581), 2485 states have internal predecessors, (4581), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-23 17:24:44,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-23 17:24:44,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:24:44,082 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] [2021-11-23 17:24:44,083 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:24:44,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:24:44,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1879597445, now seen corresponding path program 1 times [2021-11-23 17:24:44,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:24:44,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786473535] [2021-11-23 17:24:44,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:24:44,105 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:24:44,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:24:44,110 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:24:44,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:24:44,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 17:24:44,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:24:44,374 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 17:24:44,379 INFO L158 Benchmark]: Toolchain (without parser) took 19562.71ms. Allocated memory was 69.2MB in the beginning and 987.8MB in the end (delta: 918.6MB). Free memory was 31.0MB in the beginning and 565.5MB in the end (delta: -534.5MB). Peak memory consumption was 383.6MB. Max. memory is 16.1GB. [2021-11-23 17:24:44,380 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 69.2MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:24:44,380 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4817.43ms. Allocated memory was 69.2MB in the beginning and 249.6MB in the end (delta: 180.4MB). Free memory was 30.7MB in the beginning and 150.3MB in the end (delta: -119.5MB). Peak memory consumption was 114.1MB. Max. memory is 16.1GB. [2021-11-23 17:24:44,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 595.58ms. Allocated memory is still 249.6MB. Free memory was 150.3MB in the beginning and 109.8MB in the end (delta: 40.4MB). Peak memory consumption was 87.6MB. Max. memory is 16.1GB. [2021-11-23 17:24:44,382 INFO L158 Benchmark]: Boogie Preprocessor took 988.43ms. Allocated memory was 249.6MB in the beginning and 499.1MB in the end (delta: 249.6MB). Free memory was 109.8MB in the beginning and 344.3MB in the end (delta: -234.5MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2021-11-23 17:24:44,383 INFO L158 Benchmark]: RCFGBuilder took 12694.30ms. Allocated memory was 499.1MB in the beginning and 987.8MB in the end (delta: 488.6MB). Free memory was 344.3MB in the beginning and 592.7MB in the end (delta: -248.4MB). Peak memory consumption was 266.2MB. Max. memory is 16.1GB. [2021-11-23 17:24:44,384 INFO L158 Benchmark]: TraceAbstraction took 460.29ms. Allocated memory is still 987.8MB. Free memory was 592.7MB in the beginning and 565.5MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-23 17:24:44,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 69.2MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4817.43ms. Allocated memory was 69.2MB in the beginning and 249.6MB in the end (delta: 180.4MB). Free memory was 30.7MB in the beginning and 150.3MB in the end (delta: -119.5MB). Peak memory consumption was 114.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 595.58ms. Allocated memory is still 249.6MB. Free memory was 150.3MB in the beginning and 109.8MB in the end (delta: 40.4MB). Peak memory consumption was 87.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 988.43ms. Allocated memory was 249.6MB in the beginning and 499.1MB in the end (delta: 249.6MB). Free memory was 109.8MB in the beginning and 344.3MB in the end (delta: -234.5MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * RCFGBuilder took 12694.30ms. Allocated memory was 499.1MB in the beginning and 987.8MB in the end (delta: 488.6MB). Free memory was 344.3MB in the beginning and 592.7MB in the end (delta: -248.4MB). Peak memory consumption was 266.2MB. Max. memory is 16.1GB. * TraceAbstraction took 460.29ms. Allocated memory is still 987.8MB. Free memory was 592.7MB in the beginning and 565.5MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. 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 17:24:44,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_054937c3-e446-4117-ae2e-2481ff6cbf8d/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