./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label48+token_ring.01.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_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/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_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label48+token_ring.01.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/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_a13e7c6b-d43b-49ae-affb-319c5dd54298/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 6941c7d3ef4d558b74ee046fd360886b73543cf91a81ce942b4cc5fbf2c1713a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:11:35,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:11:35,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:11:35,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:11:35,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:11:35,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:11:35,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:11:35,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:11:35,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:11:35,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:11:35,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:11:35,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:11:35,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:11:35,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:11:35,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:11:35,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:11:35,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:11:35,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:11:35,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:11:35,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:11:35,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:11:35,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:11:35,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:11:35,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:11:35,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:11:35,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:11:35,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:11:35,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:11:35,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:11:35,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:11:35,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:11:35,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:11:35,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:11:35,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:11:35,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:11:35,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:11:35,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:11:35,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:11:35,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:11:35,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:11:35,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:11:35,789 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:11:35,842 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:11:35,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:11:35,844 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:11:35,844 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:11:35,845 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:11:35,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:11:35,846 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:11:35,846 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:11:35,846 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:11:35,847 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:11:35,848 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:11:35,848 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:11:35,849 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:11:35,849 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:11:35,849 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:11:35,850 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:11:35,850 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:11:35,850 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:11:35,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:11:35,852 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:11:35,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:11:35,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:11:35,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:11:35,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:11:35,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:11:35,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:11:35,856 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:11:35,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:11:35,857 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:11:35,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:11:35,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:11:35,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:11:35,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:11:35,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:11:35,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:11:35,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:11:35,860 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:11:35,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:11:35,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:11:35,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:11:35,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:11:35,861 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_a13e7c6b-d43b-49ae-affb-319c5dd54298/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6941c7d3ef4d558b74ee046fd360886b73543cf91a81ce942b4cc5fbf2c1713a [2021-11-23 17:11:36,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:11:36,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:11:36,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:11:36,229 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:11:36,230 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:11:36,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label48+token_ring.01.cil-1.c [2021-11-23 17:11:36,341 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/data/fb266f13d/723bd09247ad4cdeb2bb511532532c8d/FLAGf896961f6 [2021-11-23 17:11:37,573 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:11:37,575 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/sv-benchmarks/c/combinations/Problem05_label48+token_ring.01.cil-1.c [2021-11-23 17:11:37,645 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/data/fb266f13d/723bd09247ad4cdeb2bb511532532c8d/FLAGf896961f6 [2021-11-23 17:11:37,750 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/data/fb266f13d/723bd09247ad4cdeb2bb511532532c8d [2021-11-23 17:11:37,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:11:37,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:11:37,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:11:37,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:11:37,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:11:37,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:11:37" (1/1) ... [2021-11-23 17:11:37,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e1909fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:37, skipping insertion in model container [2021-11-23 17:11:37,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:11:37" (1/1) ... [2021-11-23 17:11:37,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:11:38,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:11:41,123 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_a13e7c6b-d43b-49ae-affb-319c5dd54298/sv-benchmarks/c/combinations/Problem05_label48+token_ring.01.cil-1.c[375709,375722] [2021-11-23 17:11:41,172 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_a13e7c6b-d43b-49ae-affb-319c5dd54298/sv-benchmarks/c/combinations/Problem05_label48+token_ring.01.cil-1.c[383339,383352] [2021-11-23 17:11:41,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:11:41,381 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:11:43,007 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_a13e7c6b-d43b-49ae-affb-319c5dd54298/sv-benchmarks/c/combinations/Problem05_label48+token_ring.01.cil-1.c[375709,375722] [2021-11-23 17:11:43,020 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_a13e7c6b-d43b-49ae-affb-319c5dd54298/sv-benchmarks/c/combinations/Problem05_label48+token_ring.01.cil-1.c[383339,383352] [2021-11-23 17:11:43,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:11:43,155 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:11:43,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:43 WrapperNode [2021-11-23 17:11:43,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:11:43,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:11:43,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:11:43,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:11:43,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:43" (1/1) ... [2021-11-23 17:11:43,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:43" (1/1) ... [2021-11-23 17:11:43,951 INFO L137 Inliner]: procedures = 46, calls = 44, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 12561 [2021-11-23 17:11:43,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:11:43,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:11:43,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:11:43,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:11:43,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:43" (1/1) ... [2021-11-23 17:11:43,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:43" (1/1) ... [2021-11-23 17:11:44,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:43" (1/1) ... [2021-11-23 17:11:44,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:43" (1/1) ... [2021-11-23 17:11:44,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:43" (1/1) ... [2021-11-23 17:11:44,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:43" (1/1) ... [2021-11-23 17:11:44,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:43" (1/1) ... [2021-11-23 17:11:44,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:11:44,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:11:44,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:11:44,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:11:44,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:11:43" (1/1) ... [2021-11-23 17:11:44,738 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:11:44,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:11:44,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:11:44,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:11:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:11:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:11:44,978 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:11:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:11:44,979 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:11:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:11:44,979 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:11:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:11:44,979 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:11:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:11:44,980 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:11:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:11:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:11:44,980 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:11:44,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:11:44,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:11:45,131 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:11:45,133 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:11:54,862 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:11:54,993 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 17:11:55,007 INFO L158 Benchmark]: Toolchain (without parser) took 17246.74ms. Allocated memory was 132.1MB in the beginning and 666.9MB in the end (delta: 534.8MB). Free memory was 91.2MB in the beginning and 465.9MB in the end (delta: -374.7MB). Peak memory consumption was 481.6MB. Max. memory is 16.1GB. [2021-11-23 17:11:55,009 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 96.5MB. Free memory was 67.7MB in the beginning and 67.6MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:11:55,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5392.79ms. Allocated memory was 132.1MB in the beginning and 205.5MB in the end (delta: 73.4MB). Free memory was 91.2MB in the beginning and 87.7MB in the end (delta: 3.5MB). Peak memory consumption was 102.7MB. Max. memory is 16.1GB. [2021-11-23 17:11:55,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 794.42ms. Allocated memory was 205.5MB in the beginning and 333.4MB in the end (delta: 127.9MB). Free memory was 87.7MB in the beginning and 196.4MB in the end (delta: -108.7MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. [2021-11-23 17:11:55,015 INFO L158 Benchmark]: Boogie Preprocessor took 773.78ms. Allocated memory is still 333.4MB. Free memory was 196.4MB in the beginning and 170.2MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2021-11-23 17:11:55,017 INFO L158 Benchmark]: RCFGBuilder took 10275.58ms. Allocated memory was 333.4MB in the beginning and 666.9MB in the end (delta: 333.4MB). Free memory was 170.2MB in the beginning and 465.9MB in the end (delta: -295.7MB). Peak memory consumption was 359.7MB. Max. memory is 16.1GB. [2021-11-23 17:11:55,029 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 96.5MB. Free memory was 67.7MB in the beginning and 67.6MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5392.79ms. Allocated memory was 132.1MB in the beginning and 205.5MB in the end (delta: 73.4MB). Free memory was 91.2MB in the beginning and 87.7MB in the end (delta: 3.5MB). Peak memory consumption was 102.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 794.42ms. Allocated memory was 205.5MB in the beginning and 333.4MB in the end (delta: 127.9MB). Free memory was 87.7MB in the beginning and 196.4MB in the end (delta: -108.7MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 773.78ms. Allocated memory is still 333.4MB. Free memory was 196.4MB in the beginning and 170.2MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * RCFGBuilder took 10275.58ms. Allocated memory was 333.4MB in the beginning and 666.9MB in the end (delta: 333.4MB). Free memory was 170.2MB in the beginning and 465.9MB in the end (delta: -295.7MB). Peak memory consumption was 359.7MB. 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 17:11:55,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/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_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/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_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label48+token_ring.01.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/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_a13e7c6b-d43b-49ae-affb-319c5dd54298/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 6941c7d3ef4d558b74ee046fd360886b73543cf91a81ce942b4cc5fbf2c1713a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:11:58,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:11:58,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:11:58,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:11:58,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:11:58,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:11:58,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:11:58,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:11:58,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:11:58,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:11:58,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:11:58,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:11:58,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:11:58,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:11:58,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:11:58,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:11:58,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:11:58,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:11:58,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:11:58,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:11:58,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:11:58,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:11:58,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:11:58,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:11:58,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:11:58,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:11:58,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:11:58,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:11:58,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:11:58,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:11:58,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:11:58,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:11:58,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:11:58,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:11:58,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:11:58,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:11:58,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:11:58,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:11:58,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:11:58,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:11:58,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:11:58,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:11:58,424 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:11:58,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:11:58,425 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:11:58,425 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:11:58,427 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:11:58,427 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:11:58,427 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:11:58,427 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:11:58,428 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:11:58,428 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:11:58,429 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:11:58,430 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:11:58,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:11:58,432 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:11:58,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:11:58,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:11:58,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:11:58,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:11:58,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:11:58,434 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:11:58,434 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:11:58,434 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:11:58,434 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:11:58,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:11:58,435 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:11:58,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:11:58,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:11:58,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:11:58,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:11:58,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:11:58,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:11:58,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:11:58,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:11:58,438 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:11:58,438 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:11:58,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:11:58,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:11:58,439 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:11:58,439 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_a13e7c6b-d43b-49ae-affb-319c5dd54298/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6941c7d3ef4d558b74ee046fd360886b73543cf91a81ce942b4cc5fbf2c1713a [2021-11-23 17:11:58,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:11:58,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:11:58,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:11:58,968 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:11:58,970 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:11:58,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label48+token_ring.01.cil-1.c [2021-11-23 17:11:59,058 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/data/389d761a3/82af743f3f6f42ca83aefa19fca9b370/FLAGe06e66afc [2021-11-23 17:12:00,467 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:12:00,469 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/sv-benchmarks/c/combinations/Problem05_label48+token_ring.01.cil-1.c [2021-11-23 17:12:00,549 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/data/389d761a3/82af743f3f6f42ca83aefa19fca9b370/FLAGe06e66afc [2021-11-23 17:12:00,602 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/data/389d761a3/82af743f3f6f42ca83aefa19fca9b370 [2021-11-23 17:12:00,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:12:00,609 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:12:00,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:12:00,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:12:00,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:12:00,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:00" (1/1) ... [2021-11-23 17:12:00,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fedae5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:00, skipping insertion in model container [2021-11-23 17:12:00,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:12:00" (1/1) ... [2021-11-23 17:12:00,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:12:01,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:12:03,977 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_a13e7c6b-d43b-49ae-affb-319c5dd54298/sv-benchmarks/c/combinations/Problem05_label48+token_ring.01.cil-1.c[375709,375722] [2021-11-23 17:12:04,027 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_a13e7c6b-d43b-49ae-affb-319c5dd54298/sv-benchmarks/c/combinations/Problem05_label48+token_ring.01.cil-1.c[383339,383352] [2021-11-23 17:12:04,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:12:04,271 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:12:06,004 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_a13e7c6b-d43b-49ae-affb-319c5dd54298/sv-benchmarks/c/combinations/Problem05_label48+token_ring.01.cil-1.c[375709,375722] [2021-11-23 17:12:06,033 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_a13e7c6b-d43b-49ae-affb-319c5dd54298/sv-benchmarks/c/combinations/Problem05_label48+token_ring.01.cil-1.c[383339,383352] [2021-11-23 17:12:06,058 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:12:06,160 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:12:06,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:06 WrapperNode [2021-11-23 17:12:06,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:12:06,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:12:06,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:12:06,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:12:06,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:06" (1/1) ... [2021-11-23 17:12:06,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:06" (1/1) ... [2021-11-23 17:12:07,102 INFO L137 Inliner]: procedures = 47, calls = 44, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 12541 [2021-11-23 17:12:07,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:12:07,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:12:07,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:12:07,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:12:07,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:06" (1/1) ... [2021-11-23 17:12:07,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:06" (1/1) ... [2021-11-23 17:12:07,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:06" (1/1) ... [2021-11-23 17:12:07,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:06" (1/1) ... [2021-11-23 17:12:07,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:06" (1/1) ... [2021-11-23 17:12:07,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:06" (1/1) ... [2021-11-23 17:12:07,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:06" (1/1) ... [2021-11-23 17:12:07,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:12:07,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:12:07,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:12:07,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:12:07,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:06" (1/1) ... [2021-11-23 17:12:07,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:12:07,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:12:07,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:12:08,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:12:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:12:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:12:08,051 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:12:08,051 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:12:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:12:08,052 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:12:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:12:08,052 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:12:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:12:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:12:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:12:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:12:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:12:08,053 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:12:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:12:08,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:12:08,217 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:12:08,221 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:12:20,905 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:12:20,955 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:12:20,955 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-23 17:12:20,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:12:20 BoogieIcfgContainer [2021-11-23 17:12:20,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:12:20,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:12:20,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:12:20,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:12:20,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:12:00" (1/3) ... [2021-11-23 17:12:20,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17806e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:12:20, skipping insertion in model container [2021-11-23 17:12:20,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:12:06" (2/3) ... [2021-11-23 17:12:20,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17806e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:12:20, skipping insertion in model container [2021-11-23 17:12:20,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:12:20" (3/3) ... [2021-11-23 17:12:20,972 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label48+token_ring.01.cil-1.c [2021-11-23 17:12:20,979 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:12:20,979 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 17:12:21,056 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:12:21,064 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 17:12:21,065 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 17:12:21,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 2290 states, 2266 states have (on average 1.8587819947043247) internal successors, (4212), 2269 states have internal predecessors, (4212), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-23 17:12:21,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 17:12:21,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:12:21,157 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] [2021-11-23 17:12:21,158 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:12:21,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:12:21,165 INFO L85 PathProgramCache]: Analyzing trace with hash -36301034, now seen corresponding path program 1 times [2021-11-23 17:12:21,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:12:21,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762965692] [2021-11-23 17:12:21,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:12:21,184 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:12:21,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:12:21,189 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:12:21,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:12:21,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:12:21,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:12:21,466 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 17:12:21,471 INFO L158 Benchmark]: Toolchain (without parser) took 20861.19ms. Allocated memory was 67.1MB in the beginning and 805.3MB in the end (delta: 738.2MB). Free memory was 32.0MB in the beginning and 407.2MB in the end (delta: -375.2MB). Peak memory consumption was 362.3MB. Max. memory is 16.1GB. [2021-11-23 17:12:21,472 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 52.4MB. Free memory was 32.9MB in the beginning and 32.8MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:12:21,473 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5550.25ms. Allocated memory was 67.1MB in the beginning and 201.3MB in the end (delta: 134.2MB). Free memory was 31.8MB in the beginning and 81.1MB in the end (delta: -49.2MB). Peak memory consumption was 91.8MB. Max. memory is 16.1GB. [2021-11-23 17:12:21,474 INFO L158 Benchmark]: Boogie Procedure Inliner took 940.92ms. Allocated memory was 201.3MB in the beginning and 402.7MB in the end (delta: 201.3MB). Free memory was 81.1MB in the beginning and 275.0MB in the end (delta: -194.0MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2021-11-23 17:12:21,475 INFO L158 Benchmark]: Boogie Preprocessor took 846.49ms. Allocated memory is still 402.7MB. Free memory was 275.0MB in the beginning and 247.8MB in the end (delta: 27.3MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2021-11-23 17:12:21,476 INFO L158 Benchmark]: RCFGBuilder took 13010.67ms. Allocated memory was 402.7MB in the beginning and 805.3MB in the end (delta: 402.7MB). Free memory was 246.7MB in the beginning and 430.2MB in the end (delta: -183.5MB). Peak memory consumption was 460.3MB. Max. memory is 16.1GB. [2021-11-23 17:12:21,477 INFO L158 Benchmark]: TraceAbstraction took 505.34ms. Allocated memory is still 805.3MB. Free memory was 430.2MB in the beginning and 407.2MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-23 17:12:21,482 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 52.4MB. Free memory was 32.9MB in the beginning and 32.8MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5550.25ms. Allocated memory was 67.1MB in the beginning and 201.3MB in the end (delta: 134.2MB). Free memory was 31.8MB in the beginning and 81.1MB in the end (delta: -49.2MB). Peak memory consumption was 91.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 940.92ms. Allocated memory was 201.3MB in the beginning and 402.7MB in the end (delta: 201.3MB). Free memory was 81.1MB in the beginning and 275.0MB in the end (delta: -194.0MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 846.49ms. Allocated memory is still 402.7MB. Free memory was 275.0MB in the beginning and 247.8MB in the end (delta: 27.3MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. * RCFGBuilder took 13010.67ms. Allocated memory was 402.7MB in the beginning and 805.3MB in the end (delta: 402.7MB). Free memory was 246.7MB in the beginning and 430.2MB in the end (delta: -183.5MB). Peak memory consumption was 460.3MB. Max. memory is 16.1GB. * TraceAbstraction took 505.34ms. Allocated memory is still 805.3MB. Free memory was 430.2MB in the beginning and 407.2MB in the end (delta: 23.0MB). 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 17:12:21,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a13e7c6b-d43b-49ae-affb-319c5dd54298/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