./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound50.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_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/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_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/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_d82d0fed-f6d8-4af5-b55f-0083ac72927b/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 19f012d1196298e1f96209f85f7789e5e4a3317d14bda6693f5031f7a8a701f8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:25:18,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:25:18,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:25:18,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:25:18,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:25:18,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:25:18,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:25:18,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:25:18,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:25:18,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:25:18,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:25:18,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:25:18,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:25:18,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:25:18,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:25:18,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:25:18,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:25:18,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:25:18,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:25:18,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:25:18,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:25:18,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:25:18,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:25:18,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:25:18,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:25:18,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:25:18,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:25:18,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:25:18,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:25:18,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:25:18,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:25:18,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:25:18,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:25:18,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:25:18,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:25:18,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:25:18,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:25:18,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:25:18,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:25:18,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:25:18,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:25:18,455 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:25:18,487 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:25:18,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:25:18,488 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:25:18,488 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:25:18,489 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:25:18,489 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:25:18,489 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:25:18,490 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:25:18,490 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:25:18,490 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:25:18,491 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:25:18,491 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:25:18,491 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:25:18,491 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:25:18,492 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:25:18,492 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:25:18,492 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:25:18,493 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:25:18,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:25:18,494 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:25:18,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:25:18,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:25:18,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:25:18,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:25:18,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:25:18,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:25:18,496 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:25:18,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:25:18,496 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:25:18,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:25:18,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:25:18,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:25:18,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:25:18,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:25:18,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:25:18,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:25:18,499 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:25:18,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:25:18,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:25:18,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:25:18,500 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:25:18,500 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_d82d0fed-f6d8-4af5-b55f-0083ac72927b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19f012d1196298e1f96209f85f7789e5e4a3317d14bda6693f5031f7a8a701f8 [2021-11-23 17:25:18,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:25:18,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:25:18,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:25:18,843 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:25:18,844 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:25:18,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound50.c [2021-11-23 17:25:18,951 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/data/15812662a/d9be329cf47f4f6ca15c3403cbd4b0a1/FLAGe53296a1a [2021-11-23 17:25:19,491 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:25:19,492 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound50.c [2021-11-23 17:25:19,507 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/data/15812662a/d9be329cf47f4f6ca15c3403cbd4b0a1/FLAGe53296a1a [2021-11-23 17:25:19,899 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/data/15812662a/d9be329cf47f4f6ca15c3403cbd4b0a1 [2021-11-23 17:25:19,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:25:19,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:25:19,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:25:19,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:25:19,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:25:19,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:25:19" (1/1) ... [2021-11-23 17:25:19,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e0b5404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:19, skipping insertion in model container [2021-11-23 17:25:19,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:25:19" (1/1) ... [2021-11-23 17:25:19,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:25:19,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:25:20,098 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_d82d0fed-f6d8-4af5-b55f-0083ac72927b/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound50.c[555,568] [2021-11-23 17:25:20,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:25:20,125 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:25:20,137 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_d82d0fed-f6d8-4af5-b55f-0083ac72927b/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound50.c[555,568] [2021-11-23 17:25:20,143 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:25:20,158 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:25:20,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:20 WrapperNode [2021-11-23 17:25:20,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:25:20,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:25:20,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:25:20,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:25:20,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:20" (1/1) ... [2021-11-23 17:25:20,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:20" (1/1) ... [2021-11-23 17:25:20,195 INFO L137 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2021-11-23 17:25:20,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:25:20,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:25:20,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:25:20,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:25:20,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:20" (1/1) ... [2021-11-23 17:25:20,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:20" (1/1) ... [2021-11-23 17:25:20,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:20" (1/1) ... [2021-11-23 17:25:20,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:20" (1/1) ... [2021-11-23 17:25:20,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:20" (1/1) ... [2021-11-23 17:25:20,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:20" (1/1) ... [2021-11-23 17:25:20,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:20" (1/1) ... [2021-11-23 17:25:20,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:25:20,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:25:20,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:25:20,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:25:20,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:20" (1/1) ... [2021-11-23 17:25:20,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:25:20,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:25:20,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:25:20,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:25:20,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:25:20,298 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 17:25:20,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 17:25:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:25:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:25:20,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:25:20,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 17:25:20,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 17:25:20,351 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:25:20,352 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:25:20,506 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:25:20,522 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 17:25:20,525 INFO L158 Benchmark]: Toolchain (without parser) took 622.10ms. Allocated memory is still 94.4MB. Free memory was 59.5MB in the beginning and 58.5MB in the end (delta: 989.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:25:20,526 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory was 63.1MB in the beginning and 63.1MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:25:20,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.99ms. Allocated memory is still 94.4MB. Free memory was 59.3MB in the beginning and 70.3MB in the end (delta: -11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:25:20,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.43ms. Allocated memory is still 94.4MB. Free memory was 70.3MB in the beginning and 69.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:25:20,529 INFO L158 Benchmark]: Boogie Preprocessor took 20.90ms. Allocated memory is still 94.4MB. Free memory was 69.0MB in the beginning and 67.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:25:20,530 INFO L158 Benchmark]: RCFGBuilder took 306.59ms. Allocated memory is still 94.4MB. Free memory was 67.8MB in the beginning and 58.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:25:20,535 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory was 63.1MB in the beginning and 63.1MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.99ms. Allocated memory is still 94.4MB. Free memory was 59.3MB in the beginning and 70.3MB in the end (delta: -11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.43ms. Allocated memory is still 94.4MB. Free memory was 70.3MB in the beginning and 69.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.90ms. Allocated memory is still 94.4MB. Free memory was 69.0MB in the beginning and 67.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 306.59ms. Allocated memory is still 94.4MB. Free memory was 67.8MB in the beginning and 58.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. 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 17:25:20,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/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_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/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_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/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_d82d0fed-f6d8-4af5-b55f-0083ac72927b/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 19f012d1196298e1f96209f85f7789e5e4a3317d14bda6693f5031f7a8a701f8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:25:23,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:25:23,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:25:23,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:25:23,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:25:23,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:25:23,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:25:23,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:25:23,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:25:23,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:25:23,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:25:23,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:25:23,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:25:23,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:25:23,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:25:23,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:25:23,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:25:23,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:25:23,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:25:23,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:25:23,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:25:23,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:25:23,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:25:23,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:25:23,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:25:23,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:25:23,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:25:23,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:25:23,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:25:23,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:25:23,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:25:23,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:25:23,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:25:23,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:25:23,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:25:23,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:25:23,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:25:23,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:25:23,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:25:23,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:25:23,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:25:23,352 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:25:23,406 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:25:23,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:25:23,407 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:25:23,407 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:25:23,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:25:23,409 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:25:23,409 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:25:23,410 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:25:23,410 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:25:23,410 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:25:23,411 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:25:23,412 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:25:23,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:25:23,414 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:25:23,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:25:23,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:25:23,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:25:23,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:25:23,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:25:23,416 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:25:23,416 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:25:23,416 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:25:23,416 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:25:23,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:25:23,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:25:23,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:25:23,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:25:23,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:25:23,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:25:23,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:25:23,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:25:23,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:25:23,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:25:23,420 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:25:23,420 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:25:23,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:25:23,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:25:23,421 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:25:23,421 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_d82d0fed-f6d8-4af5-b55f-0083ac72927b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19f012d1196298e1f96209f85f7789e5e4a3317d14bda6693f5031f7a8a701f8 [2021-11-23 17:25:23,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:25:23,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:25:23,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:25:23,900 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:25:23,901 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:25:23,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound50.c [2021-11-23 17:25:23,996 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/data/80c2ad3af/73bb1f1df5774d61956223e1c6acfeaa/FLAG9f1db7061 [2021-11-23 17:25:24,631 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:25:24,632 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound50.c [2021-11-23 17:25:24,640 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/data/80c2ad3af/73bb1f1df5774d61956223e1c6acfeaa/FLAG9f1db7061 [2021-11-23 17:25:24,991 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/data/80c2ad3af/73bb1f1df5774d61956223e1c6acfeaa [2021-11-23 17:25:24,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:25:24,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:25:24,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:25:24,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:25:25,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:25:25,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:25:24" (1/1) ... [2021-11-23 17:25:25,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa33b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:25, skipping insertion in model container [2021-11-23 17:25:25,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:25:24" (1/1) ... [2021-11-23 17:25:25,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:25:25,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:25:25,189 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_d82d0fed-f6d8-4af5-b55f-0083ac72927b/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound50.c[555,568] [2021-11-23 17:25:25,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:25:25,220 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:25:25,235 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_d82d0fed-f6d8-4af5-b55f-0083ac72927b/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound50.c[555,568] [2021-11-23 17:25:25,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:25:25,259 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:25:25,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:25 WrapperNode [2021-11-23 17:25:25,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:25:25,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:25:25,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:25:25,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:25:25,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:25" (1/1) ... [2021-11-23 17:25:25,285 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:25" (1/1) ... [2021-11-23 17:25:25,307 INFO L137 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2021-11-23 17:25:25,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:25:25,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:25:25,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:25:25,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:25:25,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:25" (1/1) ... [2021-11-23 17:25:25,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:25" (1/1) ... [2021-11-23 17:25:25,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:25" (1/1) ... [2021-11-23 17:25:25,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:25" (1/1) ... [2021-11-23 17:25:25,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:25" (1/1) ... [2021-11-23 17:25:25,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:25" (1/1) ... [2021-11-23 17:25:25,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:25" (1/1) ... [2021-11-23 17:25:25,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:25:25,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:25:25,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:25:25,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:25:25,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:25" (1/1) ... [2021-11-23 17:25:25,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:25:25,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:25:25,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:25:25,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:25:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:25:25,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:25:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 17:25:25,481 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 17:25:25,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:25:25,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:25:25,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 17:25:25,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 17:25:25,577 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:25:25,580 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:25:25,917 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:25:25,924 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:25:25,925 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:25:25,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:25:25 BoogieIcfgContainer [2021-11-23 17:25:25,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:25:25,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:25:25,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:25:25,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:25:25,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:25:24" (1/3) ... [2021-11-23 17:25:25,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186b68ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:25:25, skipping insertion in model container [2021-11-23 17:25:25,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:25:25" (2/3) ... [2021-11-23 17:25:25,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186b68ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:25:25, skipping insertion in model container [2021-11-23 17:25:25,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:25:25" (3/3) ... [2021-11-23 17:25:25,938 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_valuebound50.c [2021-11-23 17:25:25,944 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:25:25,944 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:25:26,004 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:25:26,013 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 17:25:26,013 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:25:26,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 17:25:26,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 17:25:26,040 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:25:26,041 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:25:26,041 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:25:26,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:25:26,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1975646755, now seen corresponding path program 1 times [2021-11-23 17:25:26,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:25:26,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186673840] [2021-11-23 17:25:26,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:25:26,064 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:25:26,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:25:26,068 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:25:26,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:25:26,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:25:26,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:25:26,366 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 17:25:26,371 INFO L158 Benchmark]: Toolchain (without parser) took 1375.10ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.7MB in the beginning and 48.6MB in the end (delta: -15.9MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2021-11-23 17:25:26,372 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 54.5MB. Free memory is still 35.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:25:26,373 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.76ms. Allocated memory is still 54.5MB. Free memory was 32.5MB in the beginning and 35.9MB in the end (delta: -3.4MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2021-11-23 17:25:26,374 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.73ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 35.9MB in the beginning and 50.1MB in the end (delta: -14.2MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2021-11-23 17:25:26,375 INFO L158 Benchmark]: Boogie Preprocessor took 63.84ms. Allocated memory is still 67.1MB. Free memory was 50.1MB in the beginning and 49.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:25:26,376 INFO L158 Benchmark]: RCFGBuilder took 553.69ms. Allocated memory is still 67.1MB. Free memory was 48.8MB in the beginning and 39.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:25:26,377 INFO L158 Benchmark]: TraceAbstraction took 439.27ms. Allocated memory is still 67.1MB. Free memory was 39.2MB in the beginning and 48.6MB in the end (delta: -9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:25:26,381 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 54.5MB. Free memory is still 35.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.76ms. Allocated memory is still 54.5MB. Free memory was 32.5MB in the beginning and 35.9MB in the end (delta: -3.4MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.73ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 35.9MB in the beginning and 50.1MB in the end (delta: -14.2MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.84ms. Allocated memory is still 67.1MB. Free memory was 50.1MB in the beginning and 49.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 553.69ms. Allocated memory is still 67.1MB. Free memory was 48.8MB in the beginning and 39.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 439.27ms. Allocated memory is still 67.1MB. Free memory was 39.2MB in the beginning and 48.6MB in the end (delta: -9.4MB). 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 17:25:26,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82d0fed-f6d8-4af5-b55f-0083ac72927b/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