./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/bubble_sort-2.i --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_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/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_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/bubble_sort-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/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_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/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 3b81c98cb025a57c782cd7fac59d92180084d85fffb615d87a6622128bc11df5 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:31:59,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:31:59,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:31:59,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:31:59,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:31:59,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:31:59,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:31:59,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:31:59,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:31:59,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:31:59,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:31:59,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:31:59,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:31:59,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:31:59,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:31:59,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:31:59,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:31:59,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:31:59,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:31:59,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:31:59,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:31:59,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:31:59,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:31:59,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:31:59,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:31:59,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:31:59,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:31:59,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:31:59,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:31:59,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:31:59,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:31:59,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:31:59,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:31:59,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:31:59,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:31:59,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:31:59,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:31:59,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:31:59,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:31:59,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:31:59,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:31:59,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:31:59,462 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:31:59,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:31:59,464 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:31:59,464 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:31:59,465 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:31:59,466 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:31:59,466 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:31:59,466 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:31:59,467 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:31:59,467 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:31:59,468 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:31:59,468 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:31:59,469 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:31:59,469 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:31:59,469 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:31:59,470 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:31:59,470 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:31:59,470 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:31:59,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:31:59,471 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:31:59,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:31:59,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:31:59,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:31:59,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:31:59,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:31:59,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:31:59,475 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:31:59,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:31:59,475 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:31:59,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:31:59,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:31:59,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:31:59,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:31:59,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:31:59,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:31:59,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:31:59,478 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:31:59,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:31:59,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:31:59,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:31:59,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:31:59,479 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_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b81c98cb025a57c782cd7fac59d92180084d85fffb615d87a6622128bc11df5 [2021-11-23 17:31:59,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:31:59,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:31:59,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:31:59,828 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:31:59,829 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:31:59,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/loops/bubble_sort-2.i [2021-11-23 17:31:59,894 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/data/72d37d097/e5c50ea72c4a45dcabccdf44a2f9b4ec/FLAGb2216ae36 [2021-11-23 17:32:00,411 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:32:00,412 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/sv-benchmarks/c/loops/bubble_sort-2.i [2021-11-23 17:32:00,425 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/data/72d37d097/e5c50ea72c4a45dcabccdf44a2f9b4ec/FLAGb2216ae36 [2021-11-23 17:32:00,733 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/data/72d37d097/e5c50ea72c4a45dcabccdf44a2f9b4ec [2021-11-23 17:32:00,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:32:00,737 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:32:00,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:32:00,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:32:00,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:32:00,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:32:00" (1/1) ... [2021-11-23 17:32:00,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3485631d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:00, skipping insertion in model container [2021-11-23 17:32:00,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:32:00" (1/1) ... [2021-11-23 17:32:00,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:32:00,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:32:01,051 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_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/sv-benchmarks/c/loops/bubble_sort-2.i[1830,1843] [2021-11-23 17:32:01,169 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:32:01,190 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:32:01,213 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_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/sv-benchmarks/c/loops/bubble_sort-2.i[1830,1843] [2021-11-23 17:32:01,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:32:01,366 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:32:01,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:01 WrapperNode [2021-11-23 17:32:01,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:32:01,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:32:01,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:32:01,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:32:01,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:01" (1/1) ... [2021-11-23 17:32:01,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:01" (1/1) ... [2021-11-23 17:32:01,461 INFO L137 Inliner]: procedures = 32, calls = 79, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 242 [2021-11-23 17:32:01,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:32:01,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:32:01,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:32:01,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:32:01,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:01" (1/1) ... [2021-11-23 17:32:01,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:01" (1/1) ... [2021-11-23 17:32:01,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:01" (1/1) ... [2021-11-23 17:32:01,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:01" (1/1) ... [2021-11-23 17:32:01,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:01" (1/1) ... [2021-11-23 17:32:01,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:01" (1/1) ... [2021-11-23 17:32:01,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:01" (1/1) ... [2021-11-23 17:32:01,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:32:01,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:32:01,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:32:01,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:32:01,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:01" (1/1) ... [2021-11-23 17:32:01,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:32:01,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:32:01,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:32:01,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:32:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 17:32:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:32:01,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:32:01,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:32:01,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:32:01,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:32:01,645 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-11-23 17:32:01,645 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-11-23 17:32:01,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:32:01,646 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-11-23 17:32:01,646 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-11-23 17:32:01,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:32:01,646 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-11-23 17:32:01,646 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-11-23 17:32:01,646 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-23 17:32:01,647 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-23 17:32:01,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:32:01,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:32:01,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:32:01,814 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:32:01,830 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:32:01,955 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint failFINAL: assume true; [2021-11-23 17:32:02,610 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:32:02,703 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$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 17:32:02,708 INFO L158 Benchmark]: Toolchain (without parser) took 1968.85ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 65.7MB in the beginning and 73.5MB in the end (delta: -7.8MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2021-11-23 17:32:02,709 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:32:02,711 INFO L158 Benchmark]: CACSL2BoogieTranslator took 627.91ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 65.4MB in the beginning and 73.1MB in the end (delta: -7.7MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2021-11-23 17:32:02,713 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.60ms. Allocated memory is still 104.9MB. Free memory was 73.1MB in the beginning and 70.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:32:02,714 INFO L158 Benchmark]: Boogie Preprocessor took 90.71ms. Allocated memory is still 104.9MB. Free memory was 70.7MB in the beginning and 67.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:32:02,715 INFO L158 Benchmark]: RCFGBuilder took 1146.00ms. Allocated memory is still 104.9MB. Free memory was 67.0MB in the beginning and 73.5MB in the end (delta: -6.5MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2021-11-23 17:32:02,723 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 627.91ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 65.4MB in the beginning and 73.1MB in the end (delta: -7.7MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.60ms. Allocated memory is still 104.9MB. Free memory was 73.1MB in the beginning and 70.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.71ms. Allocated memory is still 104.9MB. Free memory was 70.7MB in the beginning and 67.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1146.00ms. Allocated memory is still 104.9MB. Free memory was 67.0MB in the beginning and 73.5MB in the end (delta: -6.5MB). Peak memory consumption was 36.2MB. 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 17:32:02,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/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 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_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/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_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/bubble_sort-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/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_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/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 3b81c98cb025a57c782cd7fac59d92180084d85fffb615d87a6622128bc11df5 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:32:05,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:32:05,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:32:05,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:32:05,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:32:05,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:32:05,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:32:05,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:32:05,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:32:05,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:32:05,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:32:05,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:32:05,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:32:05,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:32:05,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:32:05,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:32:05,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:32:05,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:32:05,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:32:05,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:32:05,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:32:05,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:32:05,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:32:05,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:32:05,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:32:05,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:32:05,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:32:05,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:32:05,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:32:05,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:32:05,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:32:05,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:32:05,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:32:05,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:32:05,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:32:05,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:32:05,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:32:05,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:32:05,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:32:05,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:32:05,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:32:05,591 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:32:05,648 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:32:05,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:32:05,649 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:32:05,649 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:32:05,650 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:32:05,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:32:05,651 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:32:05,651 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:32:05,651 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:32:05,651 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:32:05,653 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:32:05,653 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:32:05,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:32:05,655 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:32:05,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:32:05,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:32:05,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:32:05,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:32:05,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:32:05,656 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:32:05,656 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:32:05,657 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:32:05,657 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:32:05,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:32:05,657 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:32:05,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:32:05,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:32:05,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:32:05,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:32:05,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:32:05,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:32:05,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:32:05,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:32:05,659 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:32:05,660 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:32:05,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:32:05,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:32:05,660 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:32:05,661 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_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b81c98cb025a57c782cd7fac59d92180084d85fffb615d87a6622128bc11df5 [2021-11-23 17:32:06,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:32:06,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:32:06,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:32:06,236 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:32:06,237 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:32:06,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/loops/bubble_sort-2.i [2021-11-23 17:32:06,318 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/data/f19546973/d9e1de9eee1c49b699597c61b4c2c8a2/FLAGec297894a [2021-11-23 17:32:06,995 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:32:06,996 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/sv-benchmarks/c/loops/bubble_sort-2.i [2021-11-23 17:32:07,013 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/data/f19546973/d9e1de9eee1c49b699597c61b4c2c8a2/FLAGec297894a [2021-11-23 17:32:07,260 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/data/f19546973/d9e1de9eee1c49b699597c61b4c2c8a2 [2021-11-23 17:32:07,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:32:07,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:32:07,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:32:07,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:32:07,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:32:07,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:32:07" (1/1) ... [2021-11-23 17:32:07,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6448c2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:07, skipping insertion in model container [2021-11-23 17:32:07,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:32:07" (1/1) ... [2021-11-23 17:32:07,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:32:07,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:32:07,531 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_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/sv-benchmarks/c/loops/bubble_sort-2.i[1830,1843] [2021-11-23 17:32:07,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:32:07,751 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 17:32:07,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:32:07,794 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_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/sv-benchmarks/c/loops/bubble_sort-2.i[1830,1843] [2021-11-23 17:32:07,925 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:32:07,939 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:32:07,968 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_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/sv-benchmarks/c/loops/bubble_sort-2.i[1830,1843] [2021-11-23 17:32:08,061 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:32:08,084 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:32:08,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:08 WrapperNode [2021-11-23 17:32:08,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:32:08,087 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:32:08,087 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:32:08,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:32:08,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:08" (1/1) ... [2021-11-23 17:32:08,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:08" (1/1) ... [2021-11-23 17:32:08,179 INFO L137 Inliner]: procedures = 34, calls = 79, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 238 [2021-11-23 17:32:08,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:32:08,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:32:08,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:32:08,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:32:08,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:08" (1/1) ... [2021-11-23 17:32:08,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:08" (1/1) ... [2021-11-23 17:32:08,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:08" (1/1) ... [2021-11-23 17:32:08,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:08" (1/1) ... [2021-11-23 17:32:08,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:08" (1/1) ... [2021-11-23 17:32:08,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:08" (1/1) ... [2021-11-23 17:32:08,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:08" (1/1) ... [2021-11-23 17:32:08,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:32:08,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:32:08,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:32:08,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:32:08,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:08" (1/1) ... [2021-11-23 17:32:08,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:32:08,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:32:08,375 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:32:08,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:32:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 17:32:08,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:32:08,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:32:08,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:32:08,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:32:08,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:32:08,437 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2021-11-23 17:32:08,437 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2021-11-23 17:32:08,437 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-11-23 17:32:08,437 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-11-23 17:32:08,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:32:08,437 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2021-11-23 17:32:08,438 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2021-11-23 17:32:08,438 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-23 17:32:08,438 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-23 17:32:08,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:32:08,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:32:08,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:32:08,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:32:08,737 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:32:08,739 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:32:08,894 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint failFINAL: assume true; [2021-11-23 17:32:09,473 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:32:09,481 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:32:09,481 INFO L301 CfgBuilder]: Removed 23 assume(true) statements. [2021-11-23 17:32:09,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:32:09 BoogieIcfgContainer [2021-11-23 17:32:09,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:32:09,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:32:09,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:32:09,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:32:09,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:32:07" (1/3) ... [2021-11-23 17:32:09,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3949566f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:32:09, skipping insertion in model container [2021-11-23 17:32:09,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:08" (2/3) ... [2021-11-23 17:32:09,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3949566f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:32:09, skipping insertion in model container [2021-11-23 17:32:09,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:32:09" (3/3) ... [2021-11-23 17:32:09,492 INFO L111 eAbstractionObserver]: Analyzing ICFG bubble_sort-2.i [2021-11-23 17:32:09,498 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:32:09,498 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:32:09,553 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:32:09,566 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 17:32:09,570 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:32:09,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 97 states have (on average 1.731958762886598) internal successors, (168), 115 states have internal predecessors, (168), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-23 17:32:09,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 17:32:09,604 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:32:09,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:32:09,605 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:32:09,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:32:09,618 INFO L85 PathProgramCache]: Analyzing trace with hash -810899314, now seen corresponding path program 1 times [2021-11-23 17:32:09,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:32:09,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003708335] [2021-11-23 17:32:09,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:32:09,635 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:32:09,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:32:09,641 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:32:09,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:32:09,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 17:32:09,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:32:09,967 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 17:32:09,971 INFO L158 Benchmark]: Toolchain (without parser) took 2700.57ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 42.4MB in the beginning and 54.9MB in the end (delta: -12.5MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2021-11-23 17:32:09,972 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 62.9MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:32:09,972 INFO L158 Benchmark]: CACSL2BoogieTranslator took 814.46ms. Allocated memory is still 62.9MB. Free memory was 42.2MB in the beginning and 32.6MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:32:09,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.16ms. Allocated memory is still 62.9MB. Free memory was 32.4MB in the beginning and 30.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:32:09,974 INFO L158 Benchmark]: Boogie Preprocessor took 130.54ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 30.1MB in the beginning and 70.7MB in the end (delta: -40.6MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2021-11-23 17:32:09,975 INFO L158 Benchmark]: RCFGBuilder took 1170.68ms. Allocated memory is still 90.2MB. Free memory was 70.7MB in the beginning and 66.6MB in the end (delta: 4.1MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2021-11-23 17:32:09,975 INFO L158 Benchmark]: TraceAbstraction took 483.74ms. Allocated memory is still 90.2MB. Free memory was 66.0MB in the beginning and 54.9MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:32:09,989 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 62.9MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 814.46ms. Allocated memory is still 62.9MB. Free memory was 42.2MB in the beginning and 32.6MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.16ms. Allocated memory is still 62.9MB. Free memory was 32.4MB in the beginning and 30.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 130.54ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 30.1MB in the beginning and 70.7MB in the end (delta: -40.6MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * RCFGBuilder took 1170.68ms. Allocated memory is still 90.2MB. Free memory was 70.7MB in the beginning and 66.6MB in the end (delta: 4.1MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * TraceAbstraction took 483.74ms. Allocated memory is still 90.2MB. Free memory was 66.0MB in the beginning and 54.9MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. 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 17:32:10,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23ca034f-8bb4-49fc-9ca6-e04ca86b5b11/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable