./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-sorted-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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-sorted-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 97c87a4be2f33468a224d89594f96c367f5837bb79771cd5155d22e1299d7831 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:03:18,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:03:18,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:03:18,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:03:18,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:03:18,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:03:18,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:03:18,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:03:18,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:03:18,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:03:18,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:03:18,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:03:18,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:03:18,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:03:18,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:03:18,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:03:18,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:03:18,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:03:18,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:03:18,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:03:18,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:03:18,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:03:18,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:03:18,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:03:18,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:03:18,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:03:18,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:03:18,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:03:18,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:03:18,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:03:18,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:03:18,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:03:18,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:03:18,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:03:18,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:03:18,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:03:18,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:03:18,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:03:18,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:03:18,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:03:18,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:03:18,285 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:03:18,327 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:03:18,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:03:18,329 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:03:18,329 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:03:18,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:03:18,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:03:18,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:03:18,331 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:03:18,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:03:18,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:03:18,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:03:18,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:03:18,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:03:18,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:03:18,334 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:03:18,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:03:18,334 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:03:18,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:03:18,335 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:03:18,335 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:03:18,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:03:18,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:18,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:03:18,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:03:18,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:03:18,336 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:03:18,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:03:18,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:03:18,337 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97c87a4be2f33468a224d89594f96c367f5837bb79771cd5155d22e1299d7831 [2021-11-23 15:03:18,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:03:18,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:03:18,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:03:18,694 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:03:18,695 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:03:18,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/forester-heap/dll-sorted-2.i [2021-11-23 15:03:18,765 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/data/5bc7a3d4e/a7dcb0adb3fe491098bdaf83c4d0df51/FLAG77d3189d7 [2021-11-23 15:03:19,364 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:03:19,365 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i [2021-11-23 15:03:19,377 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/data/5bc7a3d4e/a7dcb0adb3fe491098bdaf83c4d0df51/FLAG77d3189d7 [2021-11-23 15:03:19,625 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/data/5bc7a3d4e/a7dcb0adb3fe491098bdaf83c4d0df51 [2021-11-23 15:03:19,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:03:19,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:03:19,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:19,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:03:19,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:03:19,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:19" (1/1) ... [2021-11-23 15:03:19,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d1134f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:19, skipping insertion in model container [2021-11-23 15:03:19,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:19" (1/1) ... [2021-11-23 15:03:19,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:03:19,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:03:20,016 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22384,22397] [2021-11-23 15:03:20,028 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22614,22627] [2021-11-23 15:03:20,033 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22989,23002] [2021-11-23 15:03:20,034 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23053,23066] [2021-11-23 15:03:20,035 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23184,23197] [2021-11-23 15:03:20,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23248,23261] [2021-11-23 15:03:20,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:20,053 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:03:20,083 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22384,22397] [2021-11-23 15:03:20,086 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22614,22627] [2021-11-23 15:03:20,090 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22989,23002] [2021-11-23 15:03:20,090 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23053,23066] [2021-11-23 15:03:20,092 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23184,23197] [2021-11-23 15:03:20,092 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23248,23261] [2021-11-23 15:03:20,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:20,123 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:03:20,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:20 WrapperNode [2021-11-23 15:03:20,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:20,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:20,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:03:20,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:03:20,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:20" (1/1) ... [2021-11-23 15:03:20,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:20" (1/1) ... [2021-11-23 15:03:20,172 INFO L137 Inliner]: procedures = 119, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 194 [2021-11-23 15:03:20,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:20,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:03:20,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:03:20,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:03:20,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:20" (1/1) ... [2021-11-23 15:03:20,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:20" (1/1) ... [2021-11-23 15:03:20,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:20" (1/1) ... [2021-11-23 15:03:20,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:20" (1/1) ... [2021-11-23 15:03:20,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:20" (1/1) ... [2021-11-23 15:03:20,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:20" (1/1) ... [2021-11-23 15:03:20,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:20" (1/1) ... [2021-11-23 15:03:20,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:03:20,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:03:20,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:03:20,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:03:20,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:20" (1/1) ... [2021-11-23 15:03:20,232 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:20,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:03:20,267 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:03:20,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:03:20,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:03:20,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:03:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:03:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:03:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:03:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:03:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:03:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:03:20,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:03:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:03:20,454 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:03:20,456 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:03:20,909 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:03:20,936 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:03:20,941 INFO L158 Benchmark]: Toolchain (without parser) took 1310.55ms. Allocated memory is still 102.8MB. Free memory was 73.6MB in the beginning and 49.2MB in the end (delta: 24.4MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2021-11-23 15:03:20,943 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 102.8MB. Free memory was 68.0MB in the beginning and 67.9MB in the end (delta: 71.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:03:20,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.85ms. Allocated memory is still 102.8MB. Free memory was 73.4MB in the beginning and 71.5MB in the end (delta: 1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:03:20,945 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.70ms. Allocated memory is still 102.8MB. Free memory was 71.5MB in the beginning and 69.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:03:20,945 INFO L158 Benchmark]: Boogie Preprocessor took 35.40ms. Allocated memory is still 102.8MB. Free memory was 69.3MB in the beginning and 67.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:03:20,947 INFO L158 Benchmark]: RCFGBuilder took 717.53ms. Allocated memory is still 102.8MB. Free memory was 67.3MB in the beginning and 49.2MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 15:03:20,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 102.8MB. Free memory was 68.0MB in the beginning and 67.9MB in the end (delta: 71.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 493.85ms. Allocated memory is still 102.8MB. Free memory was 73.4MB in the beginning and 71.5MB in the end (delta: 1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.70ms. Allocated memory is still 102.8MB. Free memory was 71.5MB in the beginning and 69.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.40ms. Allocated memory is still 102.8MB. Free memory was 69.3MB in the beginning and 67.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 717.53ms. Allocated memory is still 102.8MB. Free memory was 67.3MB in the beginning and 49.2MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:03:21,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-sorted-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 97c87a4be2f33468a224d89594f96c367f5837bb79771cd5155d22e1299d7831 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:03:23,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:03:23,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:03:23,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:03:23,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:03:23,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:03:23,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:03:23,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:03:23,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:03:23,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:03:23,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:03:23,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:03:23,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:03:23,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:03:23,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:03:23,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:03:23,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:03:23,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:03:23,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:03:23,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:03:23,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:03:23,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:03:23,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:03:23,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:03:23,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:03:23,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:03:23,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:03:23,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:03:23,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:03:23,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:03:23,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:03:23,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:03:23,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:03:23,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:03:23,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:03:23,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:03:23,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:03:23,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:03:23,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:03:23,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:03:23,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:03:23,476 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:03:23,521 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:03:23,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:03:23,523 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:03:23,523 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:03:23,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:03:23,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:03:23,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:03:23,525 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:03:23,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:03:23,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:03:23,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:03:23,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:03:23,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:03:23,527 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:03:23,527 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:03:23,527 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:03:23,528 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:03:23,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:03:23,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:03:23,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:03:23,528 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:03:23,529 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:03:23,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:03:23,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:23,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:03:23,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:03:23,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:03:23,530 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:03:23,530 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:03:23,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:03:23,530 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:03:23,531 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:03:23,531 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97c87a4be2f33468a224d89594f96c367f5837bb79771cd5155d22e1299d7831 [2021-11-23 15:03:23,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:03:23,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:03:23,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:03:23,954 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:03:23,954 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:03:23,956 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/forester-heap/dll-sorted-2.i [2021-11-23 15:03:24,026 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/data/939c6eb8c/478aef59e8e8411d8ab7f603e1c896d8/FLAG5d0bea047 [2021-11-23 15:03:24,641 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:03:24,643 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i [2021-11-23 15:03:24,662 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/data/939c6eb8c/478aef59e8e8411d8ab7f603e1c896d8/FLAG5d0bea047 [2021-11-23 15:03:24,870 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/data/939c6eb8c/478aef59e8e8411d8ab7f603e1c896d8 [2021-11-23 15:03:24,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:03:24,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:03:24,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:24,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:03:24,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:03:24,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:24" (1/1) ... [2021-11-23 15:03:24,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@314a756b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:24, skipping insertion in model container [2021-11-23 15:03:24,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:24" (1/1) ... [2021-11-23 15:03:24,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:03:24,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:03:25,355 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22384,22397] [2021-11-23 15:03:25,365 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22614,22627] [2021-11-23 15:03:25,377 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22989,23002] [2021-11-23 15:03:25,378 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23053,23066] [2021-11-23 15:03:25,382 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23184,23197] [2021-11-23 15:03:25,383 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23248,23261] [2021-11-23 15:03:25,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:25,419 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:03:25,480 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22384,22397] [2021-11-23 15:03:25,492 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22614,22627] [2021-11-23 15:03:25,502 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[22989,23002] [2021-11-23 15:03:25,503 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23053,23066] [2021-11-23 15:03:25,506 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23184,23197] [2021-11-23 15:03:25,508 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_5a2f8943-3182-4738-aea7-d0112cd3fa6a/sv-benchmarks/c/forester-heap/dll-sorted-2.i[23248,23261] [2021-11-23 15:03:25,518 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:25,557 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:03:25,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:25 WrapperNode [2021-11-23 15:03:25,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:25,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:25,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:03:25,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:03:25,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:25" (1/1) ... [2021-11-23 15:03:25,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:25" (1/1) ... [2021-11-23 15:03:25,649 INFO L137 Inliner]: procedures = 122, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 187 [2021-11-23 15:03:25,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:25,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:03:25,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:03:25,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:03:25,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:25" (1/1) ... [2021-11-23 15:03:25,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:25" (1/1) ... [2021-11-23 15:03:25,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:25" (1/1) ... [2021-11-23 15:03:25,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:25" (1/1) ... [2021-11-23 15:03:25,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:25" (1/1) ... [2021-11-23 15:03:25,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:25" (1/1) ... [2021-11-23 15:03:25,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:25" (1/1) ... [2021-11-23 15:03:25,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:03:25,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:03:25,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:03:25,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:03:25,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:25" (1/1) ... [2021-11-23 15:03:25,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:25,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:03:25,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:03:25,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:03:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:03:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:03:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:03:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:03:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:03:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:03:25,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:03:25,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:03:25,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:03:25,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:03:25,965 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:03:25,967 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:03:26,551 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:03:26,570 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:03:26,574 INFO L158 Benchmark]: Toolchain (without parser) took 1695.99ms. Allocated memory was 58.7MB in the beginning and 86.0MB in the end (delta: 27.3MB). Free memory was 35.4MB in the beginning and 51.5MB in the end (delta: -16.1MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2021-11-23 15:03:26,574 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 58.7MB. Free memory is still 40.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:03:26,575 INFO L158 Benchmark]: CACSL2BoogieTranslator took 679.29ms. Allocated memory is still 58.7MB. Free memory was 35.2MB in the beginning and 32.7MB in the end (delta: 2.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 15:03:26,576 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.02ms. Allocated memory is still 58.7MB. Free memory was 32.6MB in the beginning and 30.3MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:03:26,576 INFO L158 Benchmark]: Boogie Preprocessor took 82.88ms. Allocated memory is still 58.7MB. Free memory was 30.2MB in the beginning and 28.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:03:26,577 INFO L158 Benchmark]: RCFGBuilder took 835.75ms. Allocated memory was 58.7MB in the beginning and 86.0MB in the end (delta: 27.3MB). Free memory was 28.1MB in the beginning and 51.5MB in the end (delta: -23.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2021-11-23 15:03:26,581 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 58.7MB. Free memory is still 40.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 679.29ms. Allocated memory is still 58.7MB. Free memory was 35.2MB in the beginning and 32.7MB in the end (delta: 2.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.02ms. Allocated memory is still 58.7MB. Free memory was 32.6MB in the beginning and 30.3MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.88ms. Allocated memory is still 58.7MB. Free memory was 30.2MB in the beginning and 28.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 835.75ms. Allocated memory was 58.7MB in the beginning and 86.0MB in the end (delta: 27.3MB). Free memory was 28.1MB in the beginning and 51.5MB in the end (delta: -23.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:03:26,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2f8943-3182-4738-aea7-d0112cd3fa6a/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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