./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.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_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/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_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/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_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/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 9f6b3df944a21b7c8707e83029bbb1a58d3af14f3c6a747de4c932a385afddd0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:19:19,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:19:19,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:19:19,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:19:19,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:19:19,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:19:19,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:19:19,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:19:19,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:19:19,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:19:19,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:19:19,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:19:19,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:19:19,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:19:19,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:19:19,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:19:19,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:19:19,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:19:19,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:19:19,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:19:19,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:19:19,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:19:19,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:19:19,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:19:19,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:19:19,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:19:19,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:19:19,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:19:19,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:19:19,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:19:19,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:19:19,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:19:19,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:19:19,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:19:19,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:19:19,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:19:19,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:19:19,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:19:19,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:19:19,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:19:19,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:19:19,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:19:19,703 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:19:19,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:19:19,709 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:19:19,710 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:19:19,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:19:19,718 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:19:19,719 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:19:19,719 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:19:19,719 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:19:19,720 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:19:19,724 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:19:19,725 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:19:19,725 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:19:19,725 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:19:19,725 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:19:19,726 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:19:19,726 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:19:19,727 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:19:19,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:19:19,728 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:19:19,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:19:19,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:19:19,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:19:19,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:19:19,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:19:19,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:19:19,730 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:19:19,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:19:19,731 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:19:19,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:19:19,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:19:19,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:19:19,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:19,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:19:19,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:19:19,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:19:19,733 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:19:19,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:19:19,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:19:19,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:19:19,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:19:19,734 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_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f6b3df944a21b7c8707e83029bbb1a58d3af14f3c6a747de4c932a385afddd0 [2021-11-23 17:19:20,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:19:20,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:19:20,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:19:20,159 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:19:20,159 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:19:20,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.c [2021-11-23 17:19:20,264 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/data/e7b0cf45b/bcb0542ea5eb4817a879cbdb47a2a723/FLAGfb9b2ac97 [2021-11-23 17:19:21,490 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:19:21,491 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.c [2021-11-23 17:19:21,564 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/data/e7b0cf45b/bcb0542ea5eb4817a879cbdb47a2a723/FLAGfb9b2ac97 [2021-11-23 17:19:21,659 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/data/e7b0cf45b/bcb0542ea5eb4817a879cbdb47a2a723 [2021-11-23 17:19:21,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:19:21,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:19:21,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:21,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:19:21,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:19:21,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:21" (1/1) ... [2021-11-23 17:19:21,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f552438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:21, skipping insertion in model container [2021-11-23 17:19:21,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:21" (1/1) ... [2021-11-23 17:19:21,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:19:22,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:19:24,972 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_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.c[380323,380336] [2021-11-23 17:19:25,006 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_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.c[383339,383352] [2021-11-23 17:19:25,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:25,513 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:19:27,029 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_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.c[380323,380336] [2021-11-23 17:19:27,036 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_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.c[383339,383352] [2021-11-23 17:19:27,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:27,201 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:19:27,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:27 WrapperNode [2021-11-23 17:19:27,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:27,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:27,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:19:27,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:19:27,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:27" (1/1) ... [2021-11-23 17:19:27,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:27" (1/1) ... [2021-11-23 17:19:27,860 INFO L137 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13260 [2021-11-23 17:19:27,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:27,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:19:27,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:19:27,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:19:27,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:27" (1/1) ... [2021-11-23 17:19:27,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:27" (1/1) ... [2021-11-23 17:19:28,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:27" (1/1) ... [2021-11-23 17:19:28,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:27" (1/1) ... [2021-11-23 17:19:28,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:27" (1/1) ... [2021-11-23 17:19:28,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:27" (1/1) ... [2021-11-23 17:19:28,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:27" (1/1) ... [2021-11-23 17:19:28,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:19:28,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:19:28,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:19:28,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:19:28,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:27" (1/1) ... [2021-11-23 17:19:28,797 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:28,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:19:28,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:19:28,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:19:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:19:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:19:28,898 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:19:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:19:28,899 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:19:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:19:28,899 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:19:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-11-23 17:19:28,900 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-11-23 17:19:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:19:28,900 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:19:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:19:28,901 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:19:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:19:28,901 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:19:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:19:28,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:19:28,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:19:29,110 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:19:29,112 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:19:39,138 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:19:39,256 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 17:19:39,269 INFO L158 Benchmark]: Toolchain (without parser) took 17601.29ms. Allocated memory was 98.6MB in the beginning and 887.1MB in the end (delta: 788.5MB). Free memory was 48.8MB in the beginning and 640.1MB in the end (delta: -591.3MB). Peak memory consumption was 413.8MB. Max. memory is 16.1GB. [2021-11-23 17:19:39,271 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:19:39,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5531.74ms. Allocated memory was 98.6MB in the beginning and 266.3MB in the end (delta: 167.8MB). Free memory was 48.5MB in the beginning and 128.6MB in the end (delta: -80.1MB). Peak memory consumption was 115.8MB. Max. memory is 16.1GB. [2021-11-23 17:19:39,275 INFO L158 Benchmark]: Boogie Procedure Inliner took 658.42ms. Allocated memory is still 266.3MB. Free memory was 128.6MB in the beginning and 109.4MB in the end (delta: 19.2MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2021-11-23 17:19:39,277 INFO L158 Benchmark]: Boogie Preprocessor took 923.11ms. Allocated memory was 266.3MB in the beginning and 515.9MB in the end (delta: 249.6MB). Free memory was 109.4MB in the beginning and 331.7MB in the end (delta: -222.3MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2021-11-23 17:19:39,279 INFO L158 Benchmark]: RCFGBuilder took 10480.08ms. Allocated memory was 515.9MB in the beginning and 887.1MB in the end (delta: 371.2MB). Free memory was 331.7MB in the beginning and 640.1MB in the end (delta: -308.4MB). Peak memory consumption was 280.9MB. Max. memory is 16.1GB. [2021-11-23 17:19:39,288 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5531.74ms. Allocated memory was 98.6MB in the beginning and 266.3MB in the end (delta: 167.8MB). Free memory was 48.5MB in the beginning and 128.6MB in the end (delta: -80.1MB). Peak memory consumption was 115.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 658.42ms. Allocated memory is still 266.3MB. Free memory was 128.6MB in the beginning and 109.4MB in the end (delta: 19.2MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 923.11ms. Allocated memory was 266.3MB in the beginning and 515.9MB in the end (delta: 249.6MB). Free memory was 109.4MB in the beginning and 331.7MB in the end (delta: -222.3MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * RCFGBuilder took 10480.08ms. Allocated memory was 515.9MB in the beginning and 887.1MB in the end (delta: 371.2MB). Free memory was 331.7MB in the beginning and 640.1MB in the end (delta: -308.4MB). Peak memory consumption was 280.9MB. 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 17:19:39,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/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_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/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_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/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_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/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 9f6b3df944a21b7c8707e83029bbb1a58d3af14f3c6a747de4c932a385afddd0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:19:42,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:19:42,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:19:42,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:19:42,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:19:42,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:19:42,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:19:42,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:19:42,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:19:42,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:19:42,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:19:42,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:19:42,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:19:42,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:19:42,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:19:42,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:19:42,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:19:42,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:19:42,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:19:42,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:19:42,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:19:42,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:19:42,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:19:42,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:19:42,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:19:42,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:19:42,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:19:42,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:19:42,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:19:42,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:19:42,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:19:42,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:19:42,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:19:42,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:19:42,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:19:42,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:19:42,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:19:42,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:19:42,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:19:42,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:19:42,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:19:42,522 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:19:42,576 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:19:42,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:19:42,578 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:19:42,578 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:19:42,579 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:19:42,579 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:19:42,580 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:19:42,580 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:19:42,580 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:19:42,581 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:19:42,582 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:19:42,583 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:19:42,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:19:42,585 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:19:42,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:19:42,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:19:42,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:19:42,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:19:42,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:19:42,587 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:19:42,587 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:19:42,587 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:19:42,588 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:19:42,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:19:42,588 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:19:42,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:19:42,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:19:42,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:19:42,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:19:42,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:42,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:19:42,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:19:42,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:19:42,591 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:19:42,592 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:19:42,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:19:42,592 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:19:42,593 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:19:42,593 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_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f6b3df944a21b7c8707e83029bbb1a58d3af14f3c6a747de4c932a385afddd0 [2021-11-23 17:19:43,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:19:43,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:19:43,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:19:43,080 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:19:43,081 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:19:43,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.c [2021-11-23 17:19:43,158 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/data/faa6e095f/3ed9a272e0af47609e7571b87a7f9505/FLAG09eb6ca1d [2021-11-23 17:19:44,673 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:19:44,674 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.c [2021-11-23 17:19:44,748 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/data/faa6e095f/3ed9a272e0af47609e7571b87a7f9505/FLAG09eb6ca1d [2021-11-23 17:19:45,190 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/data/faa6e095f/3ed9a272e0af47609e7571b87a7f9505 [2021-11-23 17:19:45,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:19:45,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:19:45,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:45,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:19:45,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:19:45,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:45" (1/1) ... [2021-11-23 17:19:45,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ebbfa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:45, skipping insertion in model container [2021-11-23 17:19:45,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:45" (1/1) ... [2021-11-23 17:19:45,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:19:45,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:19:48,735 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_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.c[380323,380336] [2021-11-23 17:19:48,774 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_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.c[383339,383352] [2021-11-23 17:19:49,276 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:49,297 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:19:50,979 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_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.c[380323,380336] [2021-11-23 17:19:50,988 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_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/sv-benchmarks/c/combinations/Problem05_label45+token_ring.15.cil.c[383339,383352] [2021-11-23 17:19:51,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:51,121 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:19:51,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:51 WrapperNode [2021-11-23 17:19:51,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:51,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:51,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:19:51,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:19:51,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:51" (1/1) ... [2021-11-23 17:19:51,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:51" (1/1) ... [2021-11-23 17:19:51,906 INFO L137 Inliner]: procedures = 71, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13215 [2021-11-23 17:19:51,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:51,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:19:51,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:19:51,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:19:51,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:51" (1/1) ... [2021-11-23 17:19:51,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:51" (1/1) ... [2021-11-23 17:19:52,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:51" (1/1) ... [2021-11-23 17:19:52,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:51" (1/1) ... [2021-11-23 17:19:52,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:51" (1/1) ... [2021-11-23 17:19:52,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:51" (1/1) ... [2021-11-23 17:19:52,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:51" (1/1) ... [2021-11-23 17:19:52,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:19:52,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:19:52,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:19:52,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:19:52,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:51" (1/1) ... [2021-11-23 17:19:52,828 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:52,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:19:52,866 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:19:52,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:19:52,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:19:52,931 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2021-11-23 17:19:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2021-11-23 17:19:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2021-11-23 17:19:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2021-11-23 17:19:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2021-11-23 17:19:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2021-11-23 17:19:52,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:19:52,933 INFO L130 BoogieDeclarations]: Found specification of procedure error [2021-11-23 17:19:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2021-11-23 17:19:52,934 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2021-11-23 17:19:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2021-11-23 17:19:52,934 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2021-11-23 17:19:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2021-11-23 17:19:52,935 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2021-11-23 17:19:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2021-11-23 17:19:52,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:19:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:19:53,174 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:19:53,177 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:20:06,566 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:20:06,622 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:20:06,622 INFO L301 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-23 17:20:06,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:20:06 BoogieIcfgContainer [2021-11-23 17:20:06,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:20:06,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:20:06,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:20:06,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:20:06,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:19:45" (1/3) ... [2021-11-23 17:20:06,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec7b3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:20:06, skipping insertion in model container [2021-11-23 17:20:06,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:51" (2/3) ... [2021-11-23 17:20:06,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec7b3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:20:06, skipping insertion in model container [2021-11-23 17:20:06,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:20:06" (3/3) ... [2021-11-23 17:20:06,642 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.15.cil.c [2021-11-23 17:20:06,649 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:20:06,650 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 17:20:06,744 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:20:06,757 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 17:20:06,757 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 17:20:06,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 2596 states, 2557 states have (on average 1.8420023464998045) internal successors, (4710), 2562 states have internal predecessors, (4710), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2021-11-23 17:20:06,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-23 17:20:06,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:20:06,900 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, 1] [2021-11-23 17:20:06,901 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:20:06,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:20:06,908 INFO L85 PathProgramCache]: Analyzing trace with hash -842334402, now seen corresponding path program 1 times [2021-11-23 17:20:06,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:20:06,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574079812] [2021-11-23 17:20:06,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:06,938 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:20:06,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:20:06,944 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:20:06,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:20:07,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:20:07,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:20:07,268 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 17:20:07,273 INFO L158 Benchmark]: Toolchain (without parser) took 22075.53ms. Allocated memory was 75.5MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 36.7MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 359.0MB. Max. memory is 16.1GB. [2021-11-23 17:20:07,274 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 54.5MB. Free memory was 34.1MB in the beginning and 34.1MB in the end (delta: 36.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:20:07,275 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5923.45ms. Allocated memory was 75.5MB in the beginning and 228.6MB in the end (delta: 153.1MB). Free memory was 36.5MB in the beginning and 104.5MB in the end (delta: -68.0MB). Peak memory consumption was 85.7MB. Max. memory is 16.1GB. [2021-11-23 17:20:07,276 INFO L158 Benchmark]: Boogie Procedure Inliner took 784.21ms. Allocated memory is still 228.6MB. Free memory was 104.5MB in the beginning and 97.2MB in the end (delta: 7.3MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. [2021-11-23 17:20:07,277 INFO L158 Benchmark]: Boogie Preprocessor took 907.92ms. Allocated memory was 228.6MB in the beginning and 457.2MB in the end (delta: 228.6MB). Free memory was 97.2MB in the beginning and 298.5MB in the end (delta: -201.3MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2021-11-23 17:20:07,278 INFO L158 Benchmark]: RCFGBuilder took 13813.87ms. Allocated memory was 457.2MB in the beginning and 1.6GB in the end (delta: 1.1GB). Free memory was 298.5MB in the beginning and 1.2GB in the end (delta: -935.6MB). Peak memory consumption was 226.0MB. Max. memory is 16.1GB. [2021-11-23 17:20:07,279 INFO L158 Benchmark]: TraceAbstraction took 636.29ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 27.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2021-11-23 17:20:07,284 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 54.5MB. Free memory was 34.1MB in the beginning and 34.1MB in the end (delta: 36.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5923.45ms. Allocated memory was 75.5MB in the beginning and 228.6MB in the end (delta: 153.1MB). Free memory was 36.5MB in the beginning and 104.5MB in the end (delta: -68.0MB). Peak memory consumption was 85.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 784.21ms. Allocated memory is still 228.6MB. Free memory was 104.5MB in the beginning and 97.2MB in the end (delta: 7.3MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 907.92ms. Allocated memory was 228.6MB in the beginning and 457.2MB in the end (delta: 228.6MB). Free memory was 97.2MB in the beginning and 298.5MB in the end (delta: -201.3MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. * RCFGBuilder took 13813.87ms. Allocated memory was 457.2MB in the beginning and 1.6GB in the end (delta: 1.1GB). Free memory was 298.5MB in the beginning and 1.2GB in the end (delta: -935.6MB). Peak memory consumption was 226.0MB. Max. memory is 16.1GB. * TraceAbstraction took 636.29ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 27.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:20:07,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41b3322-8e7f-4ddc-a4a5-d813a7a83cc8/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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