./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/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_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/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_fb5638ef-3e1d-4a9c-a500-27a825870d41/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 29f58006f2dcb74445f74971d42059f9136b4de9a536aa3c519655ea459ca984 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:51:35,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:51:35,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:51:35,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:51:35,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:51:35,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:51:35,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:51:35,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:51:35,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:51:35,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:51:35,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:51:35,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:51:35,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:51:35,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:51:35,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:51:35,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:51:35,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:51:35,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:51:35,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:51:35,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:51:35,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:51:35,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:51:35,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:51:35,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:51:35,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:51:35,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:51:35,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:51:35,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:51:35,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:51:35,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:51:35,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:51:35,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:51:35,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:51:35,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:51:35,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:51:35,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:51:35,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:51:35,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:51:35,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:51:35,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:51:35,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:51:35,703 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:51:35,735 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:51:35,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:51:35,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:51:35,736 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:51:35,737 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:51:35,737 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:51:35,737 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:51:35,738 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:51:35,738 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:51:35,738 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:51:35,738 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:51:35,739 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:51:35,739 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:51:35,739 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:51:35,740 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:51:35,740 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:51:35,740 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:51:35,740 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:51:35,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:51:35,742 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:51:35,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:51:35,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:51:35,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:51:35,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:51:35,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:51:35,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:51:35,744 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:51:35,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:51:35,744 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:51:35,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:51:35,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:51:35,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:51:35,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:51:35,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:51:35,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:51:35,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:51:35,747 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:51:35,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:51:35,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:51:35,747 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:51:35,748 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:51:35,748 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_fb5638ef-3e1d-4a9c-a500-27a825870d41/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29f58006f2dcb74445f74971d42059f9136b4de9a536aa3c519655ea459ca984 [2021-11-23 16:51:36,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:51:36,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:51:36,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:51:36,105 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:51:36,106 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:51:36,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-2.c [2021-11-23 16:51:36,186 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/data/c4c6e6a43/4116d4587f344c36b0ce87a7ae31dbac/FLAG7b3028ee0 [2021-11-23 16:51:37,308 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:51:37,310 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-2.c [2021-11-23 16:51:37,369 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/data/c4c6e6a43/4116d4587f344c36b0ce87a7ae31dbac/FLAG7b3028ee0 [2021-11-23 16:51:37,573 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/data/c4c6e6a43/4116d4587f344c36b0ce87a7ae31dbac [2021-11-23 16:51:37,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:51:37,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:51:37,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:51:37,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:51:37,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:51:37,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:51:37" (1/1) ... [2021-11-23 16:51:37,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f663f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:37, skipping insertion in model container [2021-11-23 16:51:37,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:51:37" (1/1) ... [2021-11-23 16:51:37,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:51:37,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:51:40,543 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_fb5638ef-3e1d-4a9c-a500-27a825870d41/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-2.c[382357,382370] [2021-11-23 16:51:40,569 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_fb5638ef-3e1d-4a9c-a500-27a825870d41/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-2.c[383339,383352] [2021-11-23 16:51:41,058 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:51:41,071 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:51:42,364 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_fb5638ef-3e1d-4a9c-a500-27a825870d41/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-2.c[382357,382370] [2021-11-23 16:51:42,368 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_fb5638ef-3e1d-4a9c-a500-27a825870d41/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-2.c[383339,383352] [2021-11-23 16:51:42,396 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:51:42,538 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:51:42,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:42 WrapperNode [2021-11-23 16:51:42,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:51:42,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:51:42,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:51:42,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:51:42,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:42" (1/1) ... [2021-11-23 16:51:42,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:42" (1/1) ... [2021-11-23 16:51:43,418 INFO L137 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13257 [2021-11-23 16:51:43,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:51:43,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:51:43,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:51:43,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:51:43,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:42" (1/1) ... [2021-11-23 16:51:43,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:42" (1/1) ... [2021-11-23 16:51:43,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:42" (1/1) ... [2021-11-23 16:51:43,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:42" (1/1) ... [2021-11-23 16:51:43,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:42" (1/1) ... [2021-11-23 16:51:43,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:42" (1/1) ... [2021-11-23 16:51:44,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:42" (1/1) ... [2021-11-23 16:51:44,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:51:44,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:51:44,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:51:44,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:51:44,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:42" (1/1) ... [2021-11-23 16:51:44,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:51:44,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:51:44,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:51:44,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:51:44,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:51:44,351 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 16:51:44,352 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 16:51:44,352 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 16:51:44,352 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 16:51:44,352 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 16:51:44,352 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 16:51:44,353 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 16:51:44,353 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 16:51:44,353 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 16:51:44,353 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 16:51:44,353 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 16:51:44,353 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 16:51:44,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:51:44,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:51:44,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:51:44,588 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:51:44,590 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:51:53,049 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:51:53,271 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 16:51:53,277 INFO L158 Benchmark]: Toolchain (without parser) took 15694.13ms. Allocated memory was 83.9MB in the beginning and 826.3MB in the end (delta: 742.4MB). Free memory was 48.1MB in the beginning and 644.5MB in the end (delta: -596.4MB). Peak memory consumption was 400.4MB. Max. memory is 16.1GB. [2021-11-23 16:51:53,278 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory is still 60.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:51:53,280 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4954.27ms. Allocated memory was 83.9MB in the beginning and 268.4MB in the end (delta: 184.5MB). Free memory was 47.8MB in the beginning and 174.7MB in the end (delta: -126.9MB). Peak memory consumption was 106.8MB. Max. memory is 16.1GB. [2021-11-23 16:51:53,281 INFO L158 Benchmark]: Boogie Procedure Inliner took 878.89ms. Allocated memory is still 268.4MB. Free memory was 174.7MB in the beginning and 133.8MB in the end (delta: 40.8MB). Peak memory consumption was 109.4MB. Max. memory is 16.1GB. [2021-11-23 16:51:53,282 INFO L158 Benchmark]: Boogie Preprocessor took 729.67ms. Allocated memory is still 268.4MB. Free memory was 133.5MB in the beginning and 97.5MB in the end (delta: 36.0MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. [2021-11-23 16:51:53,283 INFO L158 Benchmark]: RCFGBuilder took 9124.12ms. Allocated memory was 268.4MB in the beginning and 826.3MB in the end (delta: 557.8MB). Free memory was 97.5MB in the beginning and 644.5MB in the end (delta: -547.0MB). Peak memory consumption was 265.0MB. Max. memory is 16.1GB. [2021-11-23 16:51:53,286 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory is still 60.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4954.27ms. Allocated memory was 83.9MB in the beginning and 268.4MB in the end (delta: 184.5MB). Free memory was 47.8MB in the beginning and 174.7MB in the end (delta: -126.9MB). Peak memory consumption was 106.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 878.89ms. Allocated memory is still 268.4MB. Free memory was 174.7MB in the beginning and 133.8MB in the end (delta: 40.8MB). Peak memory consumption was 109.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 729.67ms. Allocated memory is still 268.4MB. Free memory was 133.5MB in the beginning and 97.5MB in the end (delta: 36.0MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. * RCFGBuilder took 9124.12ms. Allocated memory was 268.4MB in the beginning and 826.3MB in the end (delta: 557.8MB). Free memory was 97.5MB in the beginning and 644.5MB in the end (delta: -547.0MB). Peak memory consumption was 265.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 16:51:53,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/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_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/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_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/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_fb5638ef-3e1d-4a9c-a500-27a825870d41/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 29f58006f2dcb74445f74971d42059f9136b4de9a536aa3c519655ea459ca984 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:51:55,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:51:55,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:51:55,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:51:55,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:51:55,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:51:55,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:51:55,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:51:55,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:51:55,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:51:55,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:51:55,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:51:55,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:51:55,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:51:55,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:51:55,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:51:55,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:51:55,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:51:55,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:51:55,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:51:55,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:51:55,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:51:55,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:51:55,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:51:55,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:51:55,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:51:55,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:51:55,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:51:55,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:51:55,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:51:55,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:51:55,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:51:55,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:51:55,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:51:55,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:51:55,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:51:55,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:51:55,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:51:55,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:51:55,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:51:55,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:51:55,934 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:51:55,961 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:51:55,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:51:55,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:51:55,962 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:51:55,963 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:51:55,964 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:51:55,964 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:51:55,965 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:51:55,965 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:51:55,965 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:51:55,966 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:51:55,966 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:51:55,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:51:55,968 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:51:55,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:51:55,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:51:55,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:51:55,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:51:55,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:51:55,969 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:51:55,970 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:51:55,970 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:51:55,970 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:51:55,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:51:55,971 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:51:55,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:51:55,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:51:55,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:51:55,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:51:55,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:51:55,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:51:55,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:51:55,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:51:55,974 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:51:55,974 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:51:55,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:51:55,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:51:55,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:51:55,976 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_fb5638ef-3e1d-4a9c-a500-27a825870d41/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29f58006f2dcb74445f74971d42059f9136b4de9a536aa3c519655ea459ca984 [2021-11-23 16:51:56,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:51:56,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:51:56,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:51:56,429 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:51:56,432 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:51:56,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-2.c [2021-11-23 16:51:56,498 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/data/a5752f23c/81a1b987339f4a0d9603a3f9ff128f3e/FLAGbd730479b [2021-11-23 16:51:57,647 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:51:57,648 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-2.c [2021-11-23 16:51:57,704 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/data/a5752f23c/81a1b987339f4a0d9603a3f9ff128f3e/FLAGbd730479b [2021-11-23 16:51:57,882 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/data/a5752f23c/81a1b987339f4a0d9603a3f9ff128f3e [2021-11-23 16:51:57,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:51:57,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:51:57,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:51:57,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:51:57,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:51:57,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:51:57" (1/1) ... [2021-11-23 16:51:57,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f303b86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:51:57, skipping insertion in model container [2021-11-23 16:51:57,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:51:57" (1/1) ... [2021-11-23 16:51:57,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:51:58,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:52:00,614 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-2.c[382357,382370] [2021-11-23 16:52:00,654 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_fb5638ef-3e1d-4a9c-a500-27a825870d41/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-2.c[383339,383352] [2021-11-23 16:52:01,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:52:01,095 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:52:02,458 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_fb5638ef-3e1d-4a9c-a500-27a825870d41/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-2.c[382357,382370] [2021-11-23 16:52:02,462 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_fb5638ef-3e1d-4a9c-a500-27a825870d41/sv-benchmarks/c/combinations/Problem05_label46+token_ring.13.cil-2.c[383339,383352] [2021-11-23 16:52:02,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:52:02,614 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:52:02,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:52:02 WrapperNode [2021-11-23 16:52:02,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:52:02,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:52:02,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:52:02,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:52:02,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:52:02" (1/1) ... [2021-11-23 16:52:02,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:52:02" (1/1) ... [2021-11-23 16:52:03,207 INFO L137 Inliner]: procedures = 71, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13213 [2021-11-23 16:52:03,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:52:03,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:52:03,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:52:03,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:52:03,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:52:02" (1/1) ... [2021-11-23 16:52:03,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:52:02" (1/1) ... [2021-11-23 16:52:03,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:52:02" (1/1) ... [2021-11-23 16:52:03,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:52:02" (1/1) ... [2021-11-23 16:52:03,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:52:02" (1/1) ... [2021-11-23 16:52:03,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:52:02" (1/1) ... [2021-11-23 16:52:03,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:52:02" (1/1) ... [2021-11-23 16:52:03,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:52:03,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:52:03,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:52:03,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:52:03,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:52:02" (1/1) ... [2021-11-23 16:52:03,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:52:03,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:52:04,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:52:04,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:52:04,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:52:04,143 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 16:52:04,143 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 16:52:04,143 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 16:52:04,144 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 16:52:04,144 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 16:52:04,144 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 16:52:04,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:52:04,144 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 16:52:04,144 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 16:52:04,144 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 16:52:04,145 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 16:52:04,145 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 16:52:04,145 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 16:52:04,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:52:04,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:52:04,406 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:52:04,408 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:52:15,561 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:52:15,605 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:52:15,605 INFO L301 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-23 16:52:15,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:52:15 BoogieIcfgContainer [2021-11-23 16:52:15,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:52:15,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:52:15,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:52:15,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:52:15,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:51:57" (1/3) ... [2021-11-23 16:52:15,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ccddb29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:52:15, skipping insertion in model container [2021-11-23 16:52:15,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:52:02" (2/3) ... [2021-11-23 16:52:15,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ccddb29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:52:15, skipping insertion in model container [2021-11-23 16:52:15,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:52:15" (3/3) ... [2021-11-23 16:52:15,620 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.13.cil-2.c [2021-11-23 16:52:15,625 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:52:15,625 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 16:52:15,691 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:52:15,698 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 16:52:15,698 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 16:52:15,770 INFO L276 IsEmpty]: Start isEmpty. Operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-11-23 16:52:15,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-23 16:52:15,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:52:15,804 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 16:52:15,805 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:52:15,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:52:15,811 INFO L85 PathProgramCache]: Analyzing trace with hash -521467325, now seen corresponding path program 1 times [2021-11-23 16:52:15,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:52:15,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011920703] [2021-11-23 16:52:15,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:52:15,834 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:52:15,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:52:15,842 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:52:15,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 16:52:15,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 16:52:16,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:52:16,138 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 16:52:16,144 INFO L158 Benchmark]: Toolchain (without parser) took 18255.01ms. Allocated memory was 86.0MB in the beginning and 868.2MB in the end (delta: 782.2MB). Free memory was 48.3MB in the beginning and 612.9MB in the end (delta: -564.6MB). Peak memory consumption was 219.6MB. Max. memory is 16.1GB. [2021-11-23 16:52:16,144 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 58.7MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:52:16,145 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4722.62ms. Allocated memory was 86.0MB in the beginning and 293.6MB in the end (delta: 207.6MB). Free memory was 48.0MB in the beginning and 196.9MB in the end (delta: -148.9MB). Peak memory consumption was 106.1MB. Max. memory is 16.1GB. [2021-11-23 16:52:16,146 INFO L158 Benchmark]: Boogie Procedure Inliner took 592.33ms. Allocated memory is still 293.6MB. Free memory was 196.9MB in the beginning and 155.7MB in the end (delta: 41.2MB). Peak memory consumption was 109.4MB. Max. memory is 16.1GB. [2021-11-23 16:52:16,147 INFO L158 Benchmark]: Boogie Preprocessor took 716.59ms. Allocated memory is still 293.6MB. Free memory was 155.7MB in the beginning and 126.4MB in the end (delta: 29.3MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. [2021-11-23 16:52:16,148 INFO L158 Benchmark]: RCFGBuilder took 11684.95ms. Allocated memory was 293.6MB in the beginning and 868.2MB in the end (delta: 574.6MB). Free memory was 126.4MB in the beginning and 641.2MB in the end (delta: -514.8MB). Peak memory consumption was 492.8MB. Max. memory is 16.1GB. [2021-11-23 16:52:16,148 INFO L158 Benchmark]: TraceAbstraction took 529.22ms. Allocated memory is still 868.2MB. Free memory was 641.2MB in the beginning and 612.9MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2021-11-23 16:52:16,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 58.7MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4722.62ms. Allocated memory was 86.0MB in the beginning and 293.6MB in the end (delta: 207.6MB). Free memory was 48.0MB in the beginning and 196.9MB in the end (delta: -148.9MB). Peak memory consumption was 106.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 592.33ms. Allocated memory is still 293.6MB. Free memory was 196.9MB in the beginning and 155.7MB in the end (delta: 41.2MB). Peak memory consumption was 109.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 716.59ms. Allocated memory is still 293.6MB. Free memory was 155.7MB in the beginning and 126.4MB in the end (delta: 29.3MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. * RCFGBuilder took 11684.95ms. Allocated memory was 293.6MB in the beginning and 868.2MB in the end (delta: 574.6MB). Free memory was 126.4MB in the beginning and 641.2MB in the end (delta: -514.8MB). Peak memory consumption was 492.8MB. Max. memory is 16.1GB. * TraceAbstraction took 529.22ms. Allocated memory is still 868.2MB. Free memory was 641.2MB in the beginning and 612.9MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 16:52:16,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb5638ef-3e1d-4a9c-a500-27a825870d41/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