./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-011.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_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/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_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-011.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/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_40a3265d-4119-472f-9815-955ced1eacc0/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 5b6e29ecd51153e438c1994cc2e0ffddafd2990e0e080381de4ae5b34f9e08cf --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:01:30,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:01:30,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:01:30,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:01:30,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:01:30,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:01:30,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:01:30,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:01:30,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:01:30,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:01:30,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:01:30,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:01:30,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:01:30,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:01:30,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:01:30,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:01:30,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:01:30,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:01:30,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:01:30,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:01:30,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:01:30,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:01:30,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:01:30,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:01:30,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:01:30,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:01:30,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:01:30,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:01:30,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:01:30,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:01:30,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:01:30,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:01:30,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:01:30,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:01:30,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:01:30,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:01:30,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:01:30,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:01:30,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:01:30,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:01:30,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:01:30,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:01:30,661 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:01:30,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:01:30,662 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:01:30,662 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:01:30,663 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:01:30,663 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:01:30,663 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:01:30,664 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:01:30,664 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:01:30,664 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:01:30,665 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:01:30,665 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:01:30,665 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:01:30,666 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:01:30,666 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:01:30,666 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:01:30,666 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:01:30,666 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:01:30,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:01:30,667 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:01:30,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:01:30,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:01:30,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:01:30,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:01:30,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:01:30,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:01:30,670 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:01:30,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:01:30,671 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:01:30,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:01:30,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:01:30,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:01:30,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:30,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:01:30,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:01:30,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:01:30,673 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:01:30,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:01:30,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:01:30,673 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:01:30,673 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:01:30,674 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_40a3265d-4119-472f-9815-955ced1eacc0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b6e29ecd51153e438c1994cc2e0ffddafd2990e0e080381de4ae5b34f9e08cf [2021-11-23 17:01:30,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:01:30,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:01:30,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:01:30,976 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:01:30,977 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:01:30,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/xcsp/AllInterval-011.c [2021-11-23 17:01:31,044 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/data/7dccc54bf/66951b1762ee4d459c3d370b62b72d59/FLAG220e81297 [2021-11-23 17:01:31,493 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:01:31,494 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/sv-benchmarks/c/xcsp/AllInterval-011.c [2021-11-23 17:01:31,507 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/data/7dccc54bf/66951b1762ee4d459c3d370b62b72d59/FLAG220e81297 [2021-11-23 17:01:31,838 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/data/7dccc54bf/66951b1762ee4d459c3d370b62b72d59 [2021-11-23 17:01:31,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:01:31,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:01:31,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:31,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:01:31,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:01:31,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:31" (1/1) ... [2021-11-23 17:01:31,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@200be719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:31, skipping insertion in model container [2021-11-23 17:01:31,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:31" (1/1) ... [2021-11-23 17:01:31,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:01:31,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:01:32,126 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_40a3265d-4119-472f-9815-955ced1eacc0/sv-benchmarks/c/xcsp/AllInterval-011.c[6600,6613] [2021-11-23 17:01:32,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:32,139 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:01:32,191 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_40a3265d-4119-472f-9815-955ced1eacc0/sv-benchmarks/c/xcsp/AllInterval-011.c[6600,6613] [2021-11-23 17:01:32,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:32,206 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:01:32,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:32 WrapperNode [2021-11-23 17:01:32,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:32,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:32,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:01:32,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:01:32,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:32" (1/1) ... [2021-11-23 17:01:32,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:32" (1/1) ... [2021-11-23 17:01:32,282 INFO L137 Inliner]: procedures = 13, calls = 159, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 314 [2021-11-23 17:01:32,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:32,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:01:32,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:01:32,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:01:32,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:32" (1/1) ... [2021-11-23 17:01:32,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:32" (1/1) ... [2021-11-23 17:01:32,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:32" (1/1) ... [2021-11-23 17:01:32,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:32" (1/1) ... [2021-11-23 17:01:32,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:32" (1/1) ... [2021-11-23 17:01:32,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:32" (1/1) ... [2021-11-23 17:01:32,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:32" (1/1) ... [2021-11-23 17:01:32,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:01:32,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:01:32,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:01:32,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:01:32,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:32" (1/1) ... [2021-11-23 17:01:32,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:32,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:01:32,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:01:32,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:01:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:01:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:01:32,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:01:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:01:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2021-11-23 17:01:32,465 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2021-11-23 17:01:32,588 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:01:32,589 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:01:33,009 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:01:33,036 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 17:01:33,040 INFO L158 Benchmark]: Toolchain (without parser) took 1197.56ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 55.0MB in the beginning and 52.9MB in the end (delta: 2.1MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2021-11-23 17:01:33,041 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 86.0MB. Free memory was 42.5MB in the beginning and 42.5MB in the end (delta: 40.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:01:33,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.05ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 54.8MB in the beginning and 77.7MB in the end (delta: -22.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:01:33,043 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.61ms. Allocated memory is still 104.9MB. Free memory was 77.7MB in the beginning and 74.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:01:33,044 INFO L158 Benchmark]: Boogie Preprocessor took 46.94ms. Allocated memory is still 104.9MB. Free memory was 74.9MB in the beginning and 73.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:01:33,045 INFO L158 Benchmark]: RCFGBuilder took 708.11ms. Allocated memory is still 104.9MB. Free memory was 73.2MB in the beginning and 52.9MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-23 17:01:33,050 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 86.0MB. Free memory was 42.5MB in the beginning and 42.5MB in the end (delta: 40.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.05ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 54.8MB in the beginning and 77.7MB in the end (delta: -22.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.61ms. Allocated memory is still 104.9MB. Free memory was 77.7MB in the beginning and 74.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.94ms. Allocated memory is still 104.9MB. Free memory was 74.9MB in the beginning and 73.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 708.11ms. Allocated memory is still 104.9MB. Free memory was 73.2MB in the beginning and 52.9MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. 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 17:01:33,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/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_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/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_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-011.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/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_40a3265d-4119-472f-9815-955ced1eacc0/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 5b6e29ecd51153e438c1994cc2e0ffddafd2990e0e080381de4ae5b34f9e08cf --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:01:35,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:01:35,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:01:35,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:01:35,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:01:35,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:01:35,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:01:35,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:01:35,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:01:35,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:01:35,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:01:35,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:01:35,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:01:35,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:01:35,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:01:35,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:01:35,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:01:35,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:01:35,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:01:35,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:01:35,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:01:35,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:01:35,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:01:35,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:01:35,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:01:35,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:01:35,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:01:35,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:01:35,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:01:35,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:01:35,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:01:35,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:01:35,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:01:35,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:01:35,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:01:35,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:01:35,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:01:35,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:01:35,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:01:35,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:01:35,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:01:35,646 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:01:35,692 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:01:35,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:01:35,693 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:01:35,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:01:35,694 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:01:35,695 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:01:35,695 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:01:35,695 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:01:35,695 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:01:35,696 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:01:35,697 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:01:35,697 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:01:35,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:01:35,699 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:01:35,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:01:35,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:01:35,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:01:35,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:01:35,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:01:35,700 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:01:35,701 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:01:35,701 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:01:35,701 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:01:35,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:01:35,702 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:01:35,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:01:35,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:01:35,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:01:35,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:01:35,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:35,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:01:35,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:01:35,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:01:35,704 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:01:35,704 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:01:35,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:01:35,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:01:35,705 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:01:35,706 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_40a3265d-4119-472f-9815-955ced1eacc0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b6e29ecd51153e438c1994cc2e0ffddafd2990e0e080381de4ae5b34f9e08cf [2021-11-23 17:01:36,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:01:36,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:01:36,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:01:36,193 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:01:36,194 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:01:36,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/xcsp/AllInterval-011.c [2021-11-23 17:01:36,267 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/data/6efe862e8/520c1828680b4f1fb65c4a24e7ebaf29/FLAG2e02d5509 [2021-11-23 17:01:36,907 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:01:36,914 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/sv-benchmarks/c/xcsp/AllInterval-011.c [2021-11-23 17:01:36,930 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/data/6efe862e8/520c1828680b4f1fb65c4a24e7ebaf29/FLAG2e02d5509 [2021-11-23 17:01:37,208 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/data/6efe862e8/520c1828680b4f1fb65c4a24e7ebaf29 [2021-11-23 17:01:37,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:01:37,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:01:37,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:37,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:01:37,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:01:37,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:37" (1/1) ... [2021-11-23 17:01:37,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a865014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:37, skipping insertion in model container [2021-11-23 17:01:37,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:01:37" (1/1) ... [2021-11-23 17:01:37,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:01:37,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:01:37,484 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_40a3265d-4119-472f-9815-955ced1eacc0/sv-benchmarks/c/xcsp/AllInterval-011.c[6600,6613] [2021-11-23 17:01:37,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:37,540 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:01:37,608 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_40a3265d-4119-472f-9815-955ced1eacc0/sv-benchmarks/c/xcsp/AllInterval-011.c[6600,6613] [2021-11-23 17:01:37,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:01:37,624 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:01:37,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:37 WrapperNode [2021-11-23 17:01:37,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:01:37,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:37,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:01:37,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:01:37,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:37" (1/1) ... [2021-11-23 17:01:37,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:37" (1/1) ... [2021-11-23 17:01:37,708 INFO L137 Inliner]: procedures = 13, calls = 159, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 293 [2021-11-23 17:01:37,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:01:37,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:01:37,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:01:37,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:01:37,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:37" (1/1) ... [2021-11-23 17:01:37,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:37" (1/1) ... [2021-11-23 17:01:37,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:37" (1/1) ... [2021-11-23 17:01:37,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:37" (1/1) ... [2021-11-23 17:01:37,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:37" (1/1) ... [2021-11-23 17:01:37,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:37" (1/1) ... [2021-11-23 17:01:37,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:37" (1/1) ... [2021-11-23 17:01:37,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:01:37,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:01:37,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:01:37,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:01:37,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:37" (1/1) ... [2021-11-23 17:01:37,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:01:37,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:01:37,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:01:37,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:01:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:01:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:01:37,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:01:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:01:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2021-11-23 17:01:37,858 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2021-11-23 17:01:37,973 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:01:37,975 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:01:38,536 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:01:38,559 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:01:38,561 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 17:01:38,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:01:38 BoogieIcfgContainer [2021-11-23 17:01:38,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:01:38,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:01:38,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:01:38,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:01:38,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:01:37" (1/3) ... [2021-11-23 17:01:38,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713f31b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:01:38, skipping insertion in model container [2021-11-23 17:01:38,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:01:37" (2/3) ... [2021-11-23 17:01:38,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713f31b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:01:38, skipping insertion in model container [2021-11-23 17:01:38,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:01:38" (3/3) ... [2021-11-23 17:01:38,573 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-011.c [2021-11-23 17:01:38,579 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:01:38,579 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:01:38,632 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:01:38,639 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 17:01:38,639 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:01:38,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 214 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 60 states have internal predecessors, (71), 152 states have call successors, (152), 1 states have call predecessors, (152), 1 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2021-11-23 17:01:38,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 815 [2021-11-23 17:01:38,706 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:01:38,707 INFO L514 BasicCegarLoop]: trace histogram [152, 152, 152, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:01:38,708 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:01:38,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:01:38,714 INFO L85 PathProgramCache]: Analyzing trace with hash -803724805, now seen corresponding path program 1 times [2021-11-23 17:01:38,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:01:38,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727104740] [2021-11-23 17:01:38,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:01:38,735 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:01:38,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:01:38,739 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:01:38,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:01:38,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:01:39,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:01:39,018 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 17:01:39,023 INFO L158 Benchmark]: Toolchain (without parser) took 1806.76ms. Allocated memory is still 77.6MB. Free memory was 60.3MB in the beginning and 36.6MB in the end (delta: 23.6MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2021-11-23 17:01:39,024 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 77.6MB. Free memory was 56.9MB in the beginning and 56.8MB in the end (delta: 57.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:01:39,026 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.59ms. Allocated memory is still 77.6MB. Free memory was 60.0MB in the beginning and 57.2MB in the end (delta: 2.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:01:39,027 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.38ms. Allocated memory is still 77.6MB. Free memory was 57.2MB in the beginning and 54.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:01:39,028 INFO L158 Benchmark]: Boogie Preprocessor took 50.98ms. Allocated memory is still 77.6MB. Free memory was 54.4MB in the beginning and 52.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:01:39,029 INFO L158 Benchmark]: RCFGBuilder took 804.14ms. Allocated memory is still 77.6MB. Free memory was 52.5MB in the beginning and 55.6MB in the end (delta: -3.1MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2021-11-23 17:01:39,035 INFO L158 Benchmark]: TraceAbstraction took 453.36ms. Allocated memory is still 77.6MB. Free memory was 55.0MB in the beginning and 36.6MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 17:01:39,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 77.6MB. Free memory was 56.9MB in the beginning and 56.8MB in the end (delta: 57.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.59ms. Allocated memory is still 77.6MB. Free memory was 60.0MB in the beginning and 57.2MB in the end (delta: 2.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.38ms. Allocated memory is still 77.6MB. Free memory was 57.2MB in the beginning and 54.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.98ms. Allocated memory is still 77.6MB. Free memory was 54.4MB in the beginning and 52.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 804.14ms. Allocated memory is still 77.6MB. Free memory was 52.5MB in the beginning and 55.6MB in the end (delta: -3.1MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * TraceAbstraction took 453.36ms. Allocated memory is still 77.6MB. Free memory was 55.0MB in the beginning and 36.6MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. 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 17:01:39,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40a3265d-4119-472f-9815-955ced1eacc0/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