./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-with-pointer/system-with-recursion.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_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/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_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-with-pointer/system-with-recursion.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/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_470132b7-8882-4d69-8a38-fc5b31f1818a/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 74e63e86abbcab22438f70ee6d7d7ef12eaada509b0f0a56fb5cf815aaf53aab --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:57:46,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:57:46,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:57:46,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:57:46,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:57:46,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:57:46,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:57:46,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:57:46,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:57:46,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:57:46,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:57:46,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:57:46,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:57:46,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:57:46,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:57:46,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:57:46,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:57:46,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:57:46,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:57:46,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:57:46,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:57:46,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:57:46,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:57:46,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:57:46,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:57:46,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:57:46,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:57:46,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:57:46,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:57:46,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:57:46,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:57:46,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:57:46,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:57:46,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:57:46,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:57:46,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:57:46,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:57:46,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:57:46,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:57:46,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:57:46,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:57:46,631 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:57:46,655 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:57:46,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:57:46,656 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:57:46,657 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:57:46,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:57:46,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:57:46,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:57:46,658 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:57:46,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:57:46,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:57:46,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:57:46,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:57:46,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:57:46,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:57:46,659 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:57:46,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:57:46,659 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:57:46,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:57:46,660 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:57:46,660 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:57:46,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:57:46,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:57:46,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:57:46,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:57:46,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:57:46,661 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:57:46,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:57:46,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:57:46,662 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_470132b7-8882-4d69-8a38-fc5b31f1818a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74e63e86abbcab22438f70ee6d7d7ef12eaada509b0f0a56fb5cf815aaf53aab [2021-11-23 15:57:46,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:57:46,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:57:46,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:57:46,959 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:57:46,960 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:57:46,962 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/recursive-with-pointer/system-with-recursion.i [2021-11-23 15:57:47,034 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/data/6c5e2e2c6/be3d26ace0444d98b705f70c64ab3ff6/FLAG8340ca1f4 [2021-11-23 15:57:47,656 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:57:47,657 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/sv-benchmarks/c/recursive-with-pointer/system-with-recursion.i [2021-11-23 15:57:47,691 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/data/6c5e2e2c6/be3d26ace0444d98b705f70c64ab3ff6/FLAG8340ca1f4 [2021-11-23 15:57:47,938 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/data/6c5e2e2c6/be3d26ace0444d98b705f70c64ab3ff6 [2021-11-23 15:57:47,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:57:47,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:57:47,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:57:47,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:57:47,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:57:47,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:57:47" (1/1) ... [2021-11-23 15:57:47,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@167871e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:47, skipping insertion in model container [2021-11-23 15:57:47,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:57:47" (1/1) ... [2021-11-23 15:57:47,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:57:48,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:57:48,540 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_470132b7-8882-4d69-8a38-fc5b31f1818a/sv-benchmarks/c/recursive-with-pointer/system-with-recursion.i[36399,36412] [2021-11-23 15:57:48,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:57:48,564 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:57:48,622 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_470132b7-8882-4d69-8a38-fc5b31f1818a/sv-benchmarks/c/recursive-with-pointer/system-with-recursion.i[36399,36412] [2021-11-23 15:57:48,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:57:48,671 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:57:48,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:48 WrapperNode [2021-11-23 15:57:48,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:57:48,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:57:48,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:57:48,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:57:48,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:48" (1/1) ... [2021-11-23 15:57:48,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:48" (1/1) ... [2021-11-23 15:57:48,776 INFO L137 Inliner]: procedures = 184, calls = 149, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 224 [2021-11-23 15:57:48,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:57:48,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:57:48,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:57:48,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:57:48,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:48" (1/1) ... [2021-11-23 15:57:48,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:48" (1/1) ... [2021-11-23 15:57:48,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:48" (1/1) ... [2021-11-23 15:57:48,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:48" (1/1) ... [2021-11-23 15:57:48,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:48" (1/1) ... [2021-11-23 15:57:48,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:48" (1/1) ... [2021-11-23 15:57:48,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:48" (1/1) ... [2021-11-23 15:57:48,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:57:48,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:57:48,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:57:48,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:57:48,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:48" (1/1) ... [2021-11-23 15:57:48,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:57:48,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:57:48,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:57:48,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:57:48,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:57:48,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 15:57:48,956 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 15:57:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure event_precess [2021-11-23 15:57:48,957 INFO L138 BoogieDeclarations]: Found implementation of procedure event_precess [2021-11-23 15:57:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:57:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:57:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure ASNull [2021-11-23 15:57:48,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ASNull [2021-11-23 15:57:48,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:57:48,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:57:48,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:57:48,958 INFO L130 BoogieDeclarations]: Found specification of procedure ASStart [2021-11-23 15:57:48,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ASStart [2021-11-23 15:57:48,959 INFO L130 BoogieDeclarations]: Found specification of procedure status_update [2021-11-23 15:57:48,959 INFO L138 BoogieDeclarations]: Found implementation of procedure status_update [2021-11-23 15:57:48,959 INFO L130 BoogieDeclarations]: Found specification of procedure message_send [2021-11-23 15:57:48,959 INFO L138 BoogieDeclarations]: Found implementation of procedure message_send [2021-11-23 15:57:48,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:57:48,959 INFO L130 BoogieDeclarations]: Found specification of procedure ASIdle [2021-11-23 15:57:48,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ASIdle [2021-11-23 15:57:48,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:57:48,961 INFO L130 BoogieDeclarations]: Found specification of procedure system_initialize [2021-11-23 15:57:48,961 INFO L138 BoogieDeclarations]: Found implementation of procedure system_initialize [2021-11-23 15:57:48,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:57:48,961 INFO L130 BoogieDeclarations]: Found specification of procedure ASStop [2021-11-23 15:57:48,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ASStop [2021-11-23 15:57:48,961 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-23 15:57:48,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:57:48,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:57:49,158 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:57:49,160 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:57:49,791 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:57:49,836 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:57:49,840 INFO L158 Benchmark]: Toolchain (without parser) took 1895.73ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 73.7MB in the beginning and 61.2MB in the end (delta: 12.6MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2021-11-23 15:57:49,840 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 96.5MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:57:49,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 725.88ms. Allocated memory is still 96.5MB. Free memory was 73.5MB in the beginning and 54.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 15:57:49,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.64ms. Allocated memory is still 96.5MB. Free memory was 53.9MB in the beginning and 50.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:57:49,843 INFO L158 Benchmark]: Boogie Preprocessor took 66.51ms. Allocated memory is still 96.5MB. Free memory was 50.9MB in the beginning and 47.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:57:49,844 INFO L158 Benchmark]: RCFGBuilder took 993.36ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 47.9MB in the beginning and 61.2MB in the end (delta: -13.3MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2021-11-23 15:57:49,847 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 96.5MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 725.88ms. Allocated memory is still 96.5MB. Free memory was 73.5MB in the beginning and 54.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.64ms. Allocated memory is still 96.5MB. Free memory was 53.9MB in the beginning and 50.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.51ms. Allocated memory is still 96.5MB. Free memory was 50.9MB in the beginning and 47.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 993.36ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 47.9MB in the beginning and 61.2MB in the end (delta: -13.3MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:57:49,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/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_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/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_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-with-pointer/system-with-recursion.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/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_470132b7-8882-4d69-8a38-fc5b31f1818a/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 74e63e86abbcab22438f70ee6d7d7ef12eaada509b0f0a56fb5cf815aaf53aab --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:57:52,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:57:52,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:57:52,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:57:52,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:57:52,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:57:52,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:57:52,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:57:52,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:57:52,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:57:52,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:57:52,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:57:52,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:57:52,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:57:52,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:57:52,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:57:52,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:57:52,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:57:52,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:57:52,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:57:52,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:57:52,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:57:52,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:57:52,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:57:52,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:57:52,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:57:52,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:57:52,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:57:52,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:57:52,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:57:52,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:57:52,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:57:52,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:57:52,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:57:52,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:57:52,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:57:52,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:57:52,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:57:52,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:57:52,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:57:52,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:57:52,348 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:57:52,372 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:57:52,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:57:52,373 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:57:52,374 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:57:52,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:57:52,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:57:52,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:57:52,375 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:57:52,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:57:52,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:57:52,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:57:52,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:57:52,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:57:52,377 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:57:52,377 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:57:52,377 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:57:52,377 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:57:52,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:57:52,378 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:57:52,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:57:52,378 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:57:52,379 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:57:52,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:57:52,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:57:52,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:57:52,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:57:52,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:57:52,380 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:57:52,380 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:57:52,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:57:52,381 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:57:52,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:57:52,381 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_470132b7-8882-4d69-8a38-fc5b31f1818a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74e63e86abbcab22438f70ee6d7d7ef12eaada509b0f0a56fb5cf815aaf53aab [2021-11-23 15:57:52,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:57:52,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:57:52,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:57:52,722 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:57:52,723 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:57:52,725 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/recursive-with-pointer/system-with-recursion.i [2021-11-23 15:57:52,797 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/data/321ce19f7/424caa206ec7406d986b550d46f82ea2/FLAG8e8de5ffd [2021-11-23 15:57:53,506 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:57:53,506 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/sv-benchmarks/c/recursive-with-pointer/system-with-recursion.i [2021-11-23 15:57:53,528 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/data/321ce19f7/424caa206ec7406d986b550d46f82ea2/FLAG8e8de5ffd [2021-11-23 15:57:53,700 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/data/321ce19f7/424caa206ec7406d986b550d46f82ea2 [2021-11-23 15:57:53,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:57:53,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:57:53,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:57:53,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:57:53,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:57:53,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:57:53" (1/1) ... [2021-11-23 15:57:53,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e38244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:53, skipping insertion in model container [2021-11-23 15:57:53,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:57:53" (1/1) ... [2021-11-23 15:57:53,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:57:53,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:57:54,381 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_470132b7-8882-4d69-8a38-fc5b31f1818a/sv-benchmarks/c/recursive-with-pointer/system-with-recursion.i[36399,36412] [2021-11-23 15:57:54,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:57:54,407 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:57:54,489 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_470132b7-8882-4d69-8a38-fc5b31f1818a/sv-benchmarks/c/recursive-with-pointer/system-with-recursion.i[36399,36412] [2021-11-23 15:57:54,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:57:54,549 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:57:54,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:54 WrapperNode [2021-11-23 15:57:54,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:57:54,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:57:54,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:57:54,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:57:54,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:54" (1/1) ... [2021-11-23 15:57:54,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:54" (1/1) ... [2021-11-23 15:57:54,647 INFO L137 Inliner]: procedures = 188, calls = 149, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 207 [2021-11-23 15:57:54,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:57:54,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:57:54,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:57:54,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:57:54,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:54" (1/1) ... [2021-11-23 15:57:54,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:54" (1/1) ... [2021-11-23 15:57:54,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:54" (1/1) ... [2021-11-23 15:57:54,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:54" (1/1) ... [2021-11-23 15:57:54,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:54" (1/1) ... [2021-11-23 15:57:54,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:54" (1/1) ... [2021-11-23 15:57:54,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:54" (1/1) ... [2021-11-23 15:57:54,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:57:54,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:57:54,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:57:54,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:57:54,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:57:54" (1/1) ... [2021-11-23 15:57:54,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:57:54,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:57:54,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:57:54,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:57:54,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-23 15:57:54,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:57:54,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 15:57:54,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 15:57:54,855 INFO L130 BoogieDeclarations]: Found specification of procedure event_precess [2021-11-23 15:57:54,855 INFO L138 BoogieDeclarations]: Found implementation of procedure event_precess [2021-11-23 15:57:54,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:57:54,855 INFO L130 BoogieDeclarations]: Found specification of procedure ASNull [2021-11-23 15:57:54,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ASNull [2021-11-23 15:57:54,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:57:54,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:57:54,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:57:54,856 INFO L130 BoogieDeclarations]: Found specification of procedure ASStart [2021-11-23 15:57:54,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ASStart [2021-11-23 15:57:54,856 INFO L130 BoogieDeclarations]: Found specification of procedure status_update [2021-11-23 15:57:54,857 INFO L138 BoogieDeclarations]: Found implementation of procedure status_update [2021-11-23 15:57:54,857 INFO L130 BoogieDeclarations]: Found specification of procedure message_send [2021-11-23 15:57:54,857 INFO L138 BoogieDeclarations]: Found implementation of procedure message_send [2021-11-23 15:57:54,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:57:54,857 INFO L130 BoogieDeclarations]: Found specification of procedure ASIdle [2021-11-23 15:57:54,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ASIdle [2021-11-23 15:57:54,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:57:54,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:57:54,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:57:54,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 15:57:54,858 INFO L130 BoogieDeclarations]: Found specification of procedure system_initialize [2021-11-23 15:57:54,859 INFO L138 BoogieDeclarations]: Found implementation of procedure system_initialize [2021-11-23 15:57:54,859 INFO L130 BoogieDeclarations]: Found specification of procedure ASStop [2021-11-23 15:57:54,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ASStop [2021-11-23 15:57:54,859 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-23 15:57:54,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:57:54,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:57:55,092 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:57:55,094 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:57:57,618 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:57:57,700 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:57:57,708 INFO L158 Benchmark]: Toolchain (without parser) took 3999.97ms. Allocated memory was 69.2MB in the beginning and 107.0MB in the end (delta: 37.7MB). Free memory was 49.6MB in the beginning and 80.8MB in the end (delta: -31.1MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2021-11-23 15:57:57,709 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 69.2MB. Free memory was 50.3MB in the beginning and 50.2MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:57:57,711 INFO L158 Benchmark]: CACSL2BoogieTranslator took 841.97ms. Allocated memory is still 69.2MB. Free memory was 49.4MB in the beginning and 34.9MB in the end (delta: 14.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 15:57:57,712 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.96ms. Allocated memory is still 69.2MB. Free memory was 34.9MB in the beginning and 32.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:57:57,712 INFO L158 Benchmark]: Boogie Preprocessor took 103.68ms. Allocated memory is still 69.2MB. Free memory was 32.0MB in the beginning and 28.6MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:57:57,715 INFO L158 Benchmark]: RCFGBuilder took 2951.03ms. Allocated memory was 69.2MB in the beginning and 107.0MB in the end (delta: 37.7MB). Free memory was 28.6MB in the beginning and 80.8MB in the end (delta: -52.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2021-11-23 15:57:57,722 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 69.2MB. Free memory was 50.3MB in the beginning and 50.2MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 841.97ms. Allocated memory is still 69.2MB. Free memory was 49.4MB in the beginning and 34.9MB in the end (delta: 14.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.96ms. Allocated memory is still 69.2MB. Free memory was 34.9MB in the beginning and 32.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 103.68ms. Allocated memory is still 69.2MB. Free memory was 32.0MB in the beginning and 28.6MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2951.03ms. Allocated memory was 69.2MB in the beginning and 107.0MB in the end (delta: 37.7MB). Free memory was 28.6MB in the beginning and 80.8MB in the end (delta: -52.1MB). Peak memory consumption was 19.3MB. 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 15:57:57,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_470132b7-8882-4d69-8a38-fc5b31f1818a/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