./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/tree_del_rec_incorrect.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/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_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/verifythis/tree_del_rec_incorrect.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/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_121ad5ec-a685-4313-bc57-34fd146aa361/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 5a7a61549e909154c33d5cf68876338c8745b83dde5aedff258c17f34600afc7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:05:12,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:05:12,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:05:12,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:05:12,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:05:12,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:05:12,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:05:12,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:05:12,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:05:12,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:05:12,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:05:12,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:05:12,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:05:12,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:05:12,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:05:12,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:05:12,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:05:12,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:05:12,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:05:12,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:05:12,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:05:12,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:05:12,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:05:12,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:05:12,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:05:12,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:05:12,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:05:12,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:05:12,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:05:12,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:05:12,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:05:12,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:05:12,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:05:12,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:05:12,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:05:12,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:05:12,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:05:12,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:05:12,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:05:12,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:05:12,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:05:12,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:05:12,377 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:05:12,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:05:12,378 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:05:12,379 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:05:12,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:05:12,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:05:12,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:05:12,380 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:05:12,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:05:12,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:05:12,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:05:12,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:05:12,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:05:12,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:05:12,381 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:05:12,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:05:12,382 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:05:12,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:05:12,382 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:05:12,383 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:05:12,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:05:12,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:05:12,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:05:12,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:05:12,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:05:12,384 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:05:12,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:05:12,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:05:12,385 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_121ad5ec-a685-4313-bc57-34fd146aa361/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a7a61549e909154c33d5cf68876338c8745b83dde5aedff258c17f34600afc7 [2021-11-23 15:05:12,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:05:12,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:05:12,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:05:12,699 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:05:12,700 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:05:12,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/verifythis/tree_del_rec_incorrect.c [2021-11-23 15:05:12,804 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/data/63e1d2447/424365e599d4480c8322b1b8d36fcfa3/FLAGc30f7b3d5 [2021-11-23 15:05:13,271 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:05:13,271 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/sv-benchmarks/c/verifythis/tree_del_rec_incorrect.c [2021-11-23 15:05:13,278 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/data/63e1d2447/424365e599d4480c8322b1b8d36fcfa3/FLAGc30f7b3d5 [2021-11-23 15:05:13,648 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/data/63e1d2447/424365e599d4480c8322b1b8d36fcfa3 [2021-11-23 15:05:13,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:05:13,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:05:13,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:05:13,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:05:13,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:05:13,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:13" (1/1) ... [2021-11-23 15:05:13,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b4aaf6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13, skipping insertion in model container [2021-11-23 15:05:13,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:13" (1/1) ... [2021-11-23 15:05:13,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:05:13,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:05:13,865 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_121ad5ec-a685-4313-bc57-34fd146aa361/sv-benchmarks/c/verifythis/tree_del_rec_incorrect.c[618,631] [2021-11-23 15:05:13,878 WARN L1533 CHandler]: Possible shadowing of function min [2021-11-23 15:05:13,880 WARN L1533 CHandler]: Possible shadowing of function min [2021-11-23 15:05:13,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:13,909 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:05:13,921 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_121ad5ec-a685-4313-bc57-34fd146aa361/sv-benchmarks/c/verifythis/tree_del_rec_incorrect.c[618,631] [2021-11-23 15:05:13,926 WARN L1533 CHandler]: Possible shadowing of function min [2021-11-23 15:05:13,927 WARN L1533 CHandler]: Possible shadowing of function min [2021-11-23 15:05:13,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:13,953 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:05:13,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13 WrapperNode [2021-11-23 15:05:13,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:05:13,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:05:13,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:05:13,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:05:13,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2021-11-23 15:05:13,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2021-11-23 15:05:13,992 INFO L137 Inliner]: procedures = 29, calls = 58, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2021-11-23 15:05:13,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:05:13,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:05:13,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:05:13,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:05:14,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2021-11-23 15:05:14,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2021-11-23 15:05:14,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2021-11-23 15:05:14,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2021-11-23 15:05:14,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2021-11-23 15:05:14,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2021-11-23 15:05:14,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2021-11-23 15:05:14,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:05:14,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:05:14,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:05:14,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:05:14,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:13" (1/1) ... [2021-11-23 15:05:14,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:05:14,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:05:14,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:05:14,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:05:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:05:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:05:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:05:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure tree_del [2021-11-23 15:05:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_del [2021-11-23 15:05:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:05:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure min [2021-11-23 15:05:14,159 INFO L138 BoogieDeclarations]: Found implementation of procedure min [2021-11-23 15:05:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:05:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 15:05:14,161 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 15:05:14,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:05:14,161 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree [2021-11-23 15:05:14,161 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree [2021-11-23 15:05:14,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:05:14,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:05:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure size [2021-11-23 15:05:14,162 INFO L138 BoogieDeclarations]: Found implementation of procedure size [2021-11-23 15:05:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:05:14,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:05:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 15:05:14,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 15:05:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure tree_inorder [2021-11-23 15:05:14,163 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_inorder [2021-11-23 15:05:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:05:14,321 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:05:14,328 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:05:14,619 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:05:14,636 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:05:14,640 INFO L158 Benchmark]: Toolchain (without parser) took 988.03ms. Allocated memory is still 125.8MB. Free memory was 92.7MB in the beginning and 79.7MB in the end (delta: 13.0MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2021-11-23 15:05:14,641 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 42.3MB in the beginning and 42.3MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:05:14,642 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.91ms. Allocated memory is still 125.8MB. Free memory was 92.7MB in the beginning and 100.3MB in the end (delta: -7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:05:14,643 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.42ms. Allocated memory is still 125.8MB. Free memory was 100.3MB in the beginning and 98.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:05:14,648 INFO L158 Benchmark]: Boogie Preprocessor took 38.78ms. Allocated memory is still 125.8MB. Free memory was 98.5MB in the beginning and 96.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:05:14,649 INFO L158 Benchmark]: RCFGBuilder took 605.55ms. Allocated memory is still 125.8MB. Free memory was 96.9MB in the beginning and 79.7MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 15:05:14,653 INFO L339 ainManager$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 83.9MB. Free memory was 42.3MB in the beginning and 42.3MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.91ms. Allocated memory is still 125.8MB. Free memory was 92.7MB in the beginning and 100.3MB in the end (delta: -7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.42ms. Allocated memory is still 125.8MB. Free memory was 100.3MB in the beginning and 98.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.78ms. Allocated memory is still 125.8MB. Free memory was 98.5MB in the beginning and 96.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 605.55ms. Allocated memory is still 125.8MB. Free memory was 96.9MB in the beginning and 79.7MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. 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 15:05:14,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/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_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/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_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/verifythis/tree_del_rec_incorrect.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/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_121ad5ec-a685-4313-bc57-34fd146aa361/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 5a7a61549e909154c33d5cf68876338c8745b83dde5aedff258c17f34600afc7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:05:17,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:05:17,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:05:17,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:05:17,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:05:17,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:05:17,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:05:17,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:05:17,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:05:17,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:05:17,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:05:17,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:05:17,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:05:17,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:05:17,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:05:17,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:05:17,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:05:17,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:05:17,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:05:17,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:05:17,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:05:17,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:05:17,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:05:17,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:05:17,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:05:17,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:05:17,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:05:17,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:05:17,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:05:17,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:05:17,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:05:17,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:05:17,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:05:17,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:05:17,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:05:17,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:05:17,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:05:17,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:05:17,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:05:17,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:05:17,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:05:17,243 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:05:17,291 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:05:17,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:05:17,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:05:17,293 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:05:17,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:05:17,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:05:17,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:05:17,295 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:05:17,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:05:17,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:05:17,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:05:17,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:05:17,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:05:17,298 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:05:17,298 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:05:17,298 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:05:17,298 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:05:17,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:05:17,299 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:05:17,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:05:17,299 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:05:17,299 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:05:17,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:05:17,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:05:17,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:05:17,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:05:17,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:05:17,301 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:05:17,301 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:05:17,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:05:17,301 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:05:17,302 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:05:17,302 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_121ad5ec-a685-4313-bc57-34fd146aa361/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a7a61549e909154c33d5cf68876338c8745b83dde5aedff258c17f34600afc7 [2021-11-23 15:05:17,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:05:17,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:05:17,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:05:17,736 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:05:17,737 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:05:17,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/verifythis/tree_del_rec_incorrect.c [2021-11-23 15:05:17,809 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/data/25b98d786/d1e8d9bb088c4e2bb3b160d7de7466b2/FLAGfe8e56fdd [2021-11-23 15:05:18,388 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:05:18,390 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/sv-benchmarks/c/verifythis/tree_del_rec_incorrect.c [2021-11-23 15:05:18,398 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/data/25b98d786/d1e8d9bb088c4e2bb3b160d7de7466b2/FLAGfe8e56fdd [2021-11-23 15:05:18,758 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/data/25b98d786/d1e8d9bb088c4e2bb3b160d7de7466b2 [2021-11-23 15:05:18,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:05:18,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:05:18,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:05:18,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:05:18,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:05:18,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:18" (1/1) ... [2021-11-23 15:05:18,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68d05348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:18, skipping insertion in model container [2021-11-23 15:05:18,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:18" (1/1) ... [2021-11-23 15:05:18,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:05:18,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:05:18,973 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_121ad5ec-a685-4313-bc57-34fd146aa361/sv-benchmarks/c/verifythis/tree_del_rec_incorrect.c[618,631] [2021-11-23 15:05:19,003 WARN L1533 CHandler]: Possible shadowing of function min [2021-11-23 15:05:19,005 WARN L1533 CHandler]: Possible shadowing of function min [2021-11-23 15:05:19,044 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:19,101 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 15:05:19,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:05:19,129 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_121ad5ec-a685-4313-bc57-34fd146aa361/sv-benchmarks/c/verifythis/tree_del_rec_incorrect.c[618,631] [2021-11-23 15:05:19,140 WARN L1533 CHandler]: Possible shadowing of function min [2021-11-23 15:05:19,142 WARN L1533 CHandler]: Possible shadowing of function min [2021-11-23 15:05:19,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:19,174 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:05:19,188 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_121ad5ec-a685-4313-bc57-34fd146aa361/sv-benchmarks/c/verifythis/tree_del_rec_incorrect.c[618,631] [2021-11-23 15:05:19,198 WARN L1533 CHandler]: Possible shadowing of function min [2021-11-23 15:05:19,203 WARN L1533 CHandler]: Possible shadowing of function min [2021-11-23 15:05:19,223 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:19,244 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:05:19,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:19 WrapperNode [2021-11-23 15:05:19,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:05:19,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:05:19,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:05:19,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:05:19,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:19" (1/1) ... [2021-11-23 15:05:19,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:19" (1/1) ... [2021-11-23 15:05:19,307 INFO L137 Inliner]: procedures = 31, calls = 58, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2021-11-23 15:05:19,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:05:19,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:05:19,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:05:19,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:05:19,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:19" (1/1) ... [2021-11-23 15:05:19,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:19" (1/1) ... [2021-11-23 15:05:19,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:19" (1/1) ... [2021-11-23 15:05:19,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:19" (1/1) ... [2021-11-23 15:05:19,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:19" (1/1) ... [2021-11-23 15:05:19,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:19" (1/1) ... [2021-11-23 15:05:19,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:19" (1/1) ... [2021-11-23 15:05:19,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:05:19,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:05:19,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:05:19,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:05:19,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:19" (1/1) ... [2021-11-23 15:05:19,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:05:19,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:05:19,406 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:05:19,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:05:19,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:05:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:05:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:05:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:05:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure tree_del [2021-11-23 15:05:19,455 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_del [2021-11-23 15:05:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure min [2021-11-23 15:05:19,456 INFO L138 BoogieDeclarations]: Found implementation of procedure min [2021-11-23 15:05:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:05:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 15:05:19,456 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 15:05:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:05:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree [2021-11-23 15:05:19,457 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree [2021-11-23 15:05:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:05:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure size [2021-11-23 15:05:19,457 INFO L138 BoogieDeclarations]: Found implementation of procedure size [2021-11-23 15:05:19,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:05:19,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:05:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 15:05:19,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 15:05:19,458 INFO L130 BoogieDeclarations]: Found specification of procedure tree_inorder [2021-11-23 15:05:19,458 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_inorder [2021-11-23 15:05:19,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:05:19,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:05:19,606 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:05:19,608 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:05:20,016 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:05:20,034 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:05:20,044 INFO L158 Benchmark]: Toolchain (without parser) took 1273.39ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 36.6MB in the beginning and 42.5MB in the end (delta: -5.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-11-23 15:05:20,045 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 58.7MB. Free memory was 40.1MB in the beginning and 40.1MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:05:20,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.87ms. Allocated memory is still 58.7MB. Free memory was 36.5MB in the beginning and 38.3MB in the end (delta: -1.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 15:05:20,047 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.72ms. Allocated memory is still 58.7MB. Free memory was 38.3MB in the beginning and 36.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:05:20,051 INFO L158 Benchmark]: Boogie Preprocessor took 65.02ms. Allocated memory is still 58.7MB. Free memory was 36.4MB in the beginning and 34.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:05:20,052 INFO L158 Benchmark]: RCFGBuilder took 664.58ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 34.5MB in the beginning and 42.5MB in the end (delta: -8.0MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2021-11-23 15:05:20,055 INFO L339 ainManager$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 was 40.1MB in the beginning and 40.1MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.87ms. Allocated memory is still 58.7MB. Free memory was 36.5MB in the beginning and 38.3MB in the end (delta: -1.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.72ms. Allocated memory is still 58.7MB. Free memory was 38.3MB in the beginning and 36.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.02ms. Allocated memory is still 58.7MB. Free memory was 36.4MB in the beginning and 34.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 664.58ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 34.5MB in the beginning and 42.5MB in the end (delta: -8.0MB). Peak memory consumption was 12.5MB. 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 15:05:20,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121ad5ec-a685-4313-bc57-34fd146aa361/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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