./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/Ackermann04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/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_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/Ackermann04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/bin/ukojak-CwSLpZB5Qu/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85f83c4bcdce9397140788b204098e14e4fa25f5b66f064340f4aaa544fbb462 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:03:51,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:03:51,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:03:51,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:03:51,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:03:51,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:03:51,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:03:51,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:03:51,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:03:51,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:03:51,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:03:51,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:03:51,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:03:51,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:03:51,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:03:51,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:03:51,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:03:51,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:03:51,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:03:51,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:03:51,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:03:51,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:03:51,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:03:51,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:03:51,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:03:51,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:03:51,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:03:51,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:03:51,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:03:51,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:03:51,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:03:51,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:03:51,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:03:51,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:03:51,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:03:51,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:03:51,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:03:51,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:03:51,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:03:51,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:03:51,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:03:51,449 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/bin/ukojak-CwSLpZB5Qu/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-11-23 15:03:51,491 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:03:51,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:03:51,493 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:03:51,493 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:03:51,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:03:51,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:03:51,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:03:51,495 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:03:51,501 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:03:51,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:03:51,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:03:51,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:03:51,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:03:51,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:03:51,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:03:51,503 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 15:03:51,504 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:03:51,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:03:51,504 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:03:51,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:03:51,504 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:03:51,505 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:03:51,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:03:51,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:51,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:03:51,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:03:51,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:03:51,506 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:03:51,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:03:51,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:03:51,508 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_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85f83c4bcdce9397140788b204098e14e4fa25f5b66f064340f4aaa544fbb462 [2021-11-23 15:03:51,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:03:51,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:03:51,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:03:51,840 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:03:51,841 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:03:51,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/recursive/Ackermann04.c [2021-11-23 15:03:51,906 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/bin/ukojak-CwSLpZB5Qu/data/05f6da8b8/8ed30b12b20749638519946418e509bc/FLAGa94c4f74e [2021-11-23 15:03:52,324 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:03:52,324 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/sv-benchmarks/c/recursive/Ackermann04.c [2021-11-23 15:03:52,331 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/bin/ukojak-CwSLpZB5Qu/data/05f6da8b8/8ed30b12b20749638519946418e509bc/FLAGa94c4f74e [2021-11-23 15:03:52,735 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/bin/ukojak-CwSLpZB5Qu/data/05f6da8b8/8ed30b12b20749638519946418e509bc [2021-11-23 15:03:52,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:03:52,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:03:52,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:52,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:03:52,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:03:52,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:52" (1/1) ... [2021-11-23 15:03:52,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1048245b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:52, skipping insertion in model container [2021-11-23 15:03:52,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:52" (1/1) ... [2021-11-23 15:03:52,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:03:52,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:03:52,918 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_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/sv-benchmarks/c/recursive/Ackermann04.c[1166,1179] [2021-11-23 15:03:52,919 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:52,935 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:03:52,965 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_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/sv-benchmarks/c/recursive/Ackermann04.c[1166,1179] [2021-11-23 15:03:52,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:52,976 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:03:52,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:52 WrapperNode [2021-11-23 15:03:52,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:52,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:52,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:03:52,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:03:52,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:52" (1/1) ... [2021-11-23 15:03:52,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:52" (1/1) ... [2021-11-23 15:03:53,018 INFO L137 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2021-11-23 15:03:53,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:53,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:03:53,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:03:53,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:03:53,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:52" (1/1) ... [2021-11-23 15:03:53,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:52" (1/1) ... [2021-11-23 15:03:53,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:52" (1/1) ... [2021-11-23 15:03:53,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:52" (1/1) ... [2021-11-23 15:03:53,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:52" (1/1) ... [2021-11-23 15:03:53,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:52" (1/1) ... [2021-11-23 15:03:53,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:52" (1/1) ... [2021-11-23 15:03:53,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:03:53,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:03:53,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:03:53,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:03:53,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:52" (1/1) ... [2021-11-23 15:03:53,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:53,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:03:53,091 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:03:53,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:03:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:03:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:03:53,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:03:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2021-11-23 15:03:53,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2021-11-23 15:03:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:03:53,215 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:03:53,216 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:03:53,413 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:03:53,430 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 15:03:53,443 INFO L158 Benchmark]: Toolchain (without parser) took 703.52ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 81.9MB in the end (delta: 686.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:03:53,450 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:03:53,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.52ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 94.4MB in the end (delta: -12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:03:53,452 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.75ms. Allocated memory is still 117.4MB. Free memory was 94.4MB in the beginning and 92.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:03:53,453 INFO L158 Benchmark]: Boogie Preprocessor took 34.73ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 92.3MB in the end (delta: 565.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:03:53,454 INFO L158 Benchmark]: RCFGBuilder took 386.79ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 81.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:03:53,465 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.52ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 94.4MB in the end (delta: -12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.75ms. Allocated memory is still 117.4MB. Free memory was 94.4MB in the beginning and 92.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.73ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 92.3MB in the end (delta: 565.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 386.79ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 81.9MB in the end (delta: 10.5MB). 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 15:03:53,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/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 No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc201e6-75d3-4250-8f8c-c3e98ae51d28/bin/ukojak-CwSLpZB5Qu/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable