./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/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_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a92c386f0a3e93e7f4997075243ca49a5a9660dc1b84c645c53a036868e1508d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:37:56,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:37:56,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:37:56,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:37:56,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:37:56,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:37:56,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:37:56,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:37:56,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:37:56,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:37:56,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:37:56,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:37:56,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:37:56,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:37:56,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:37:56,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:37:56,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:37:56,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:37:56,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:37:56,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:37:56,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:37:56,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:37:56,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:37:56,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:37:56,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:37:56,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:37:56,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:37:56,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:37:56,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:37:56,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:37:56,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:37:56,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:37:56,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:37:56,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:37:56,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:37:56,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:37:56,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:37:56,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:37:56,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:37:56,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:37:56,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:37:56,953 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:37:56,996 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:37:56,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:37:56,997 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:37:56,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:37:56,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:37:56,998 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:37:56,998 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:37:56,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:37:57,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:37:57,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:37:57,006 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:37:57,007 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:37:57,007 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:37:57,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:37:57,007 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:37:57,008 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:37:57,008 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:37:57,008 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:37:57,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:37:57,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:37:57,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:37:57,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:37:57,009 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:37:57,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:37:57,010 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_d825084c-a61a-4c74-b6cf-cda0456f3628/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a92c386f0a3e93e7f4997075243ca49a5a9660dc1b84c645c53a036868e1508d [2021-11-23 15:37:57,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:37:57,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:37:57,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:37:57,285 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:37:57,286 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:37:57,288 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i [2021-11-23 15:37:57,366 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/data/713beda8d/1e3b7ad8f7f0411ba59983a24c180d7b/FLAGdfc9975cf [2021-11-23 15:37:57,888 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:37:57,888 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i [2021-11-23 15:37:57,906 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/data/713beda8d/1e3b7ad8f7f0411ba59983a24c180d7b/FLAGdfc9975cf [2021-11-23 15:37:58,170 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/data/713beda8d/1e3b7ad8f7f0411ba59983a24c180d7b [2021-11-23 15:37:58,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:37:58,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:37:58,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:37:58,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:37:58,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:37:58,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:37:58" (1/1) ... [2021-11-23 15:37:58,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@390613b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:58, skipping insertion in model container [2021-11-23 15:37:58,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:37:58" (1/1) ... [2021-11-23 15:37:58,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:37:58,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:37:58,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:37:58,671 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:37:58,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:37:58,758 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:37:58,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:58 WrapperNode [2021-11-23 15:37:58,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:37:58,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:37:58,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:37:58,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:37:58,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:58" (1/1) ... [2021-11-23 15:37:58,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:58" (1/1) ... [2021-11-23 15:37:58,820 INFO L137 Inliner]: procedures = 127, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 175 [2021-11-23 15:37:58,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:37:58,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:37:58,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:37:58,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:37:58,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:58" (1/1) ... [2021-11-23 15:37:58,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:58" (1/1) ... [2021-11-23 15:37:58,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:58" (1/1) ... [2021-11-23 15:37:58,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:58" (1/1) ... [2021-11-23 15:37:58,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:58" (1/1) ... [2021-11-23 15:37:58,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:58" (1/1) ... [2021-11-23 15:37:58,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:58" (1/1) ... [2021-11-23 15:37:58,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:37:58,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:37:58,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:37:58,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:37:58,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:58" (1/1) ... [2021-11-23 15:37:58,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:37:58,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:37:58,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:37:58,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:37:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:37:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:37:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:37:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:37:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:37:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:37:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:37:58,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:37:59,099 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:37:59,106 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:37:59,567 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:37:59,658 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:37:59,663 INFO L158 Benchmark]: Toolchain (without parser) took 1486.93ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 56.7MB in the beginning and 94.0MB in the end (delta: -37.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-23 15:37:59,664 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:37:59,665 INFO L158 Benchmark]: CACSL2BoogieTranslator took 577.64ms. Allocated memory is still 98.6MB. Free memory was 56.5MB in the beginning and 66.8MB in the end (delta: -10.3MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2021-11-23 15:37:59,667 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.31ms. Allocated memory is still 98.6MB. Free memory was 66.8MB in the beginning and 64.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:37:59,668 INFO L158 Benchmark]: Boogie Preprocessor took 34.83ms. Allocated memory is still 98.6MB. Free memory was 64.2MB in the beginning and 62.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:37:59,669 INFO L158 Benchmark]: RCFGBuilder took 803.82ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 62.3MB in the beginning and 94.0MB in the end (delta: -31.7MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2021-11-23 15:37:59,679 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 577.64ms. Allocated memory is still 98.6MB. Free memory was 56.5MB in the beginning and 66.8MB in the end (delta: -10.3MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.31ms. Allocated memory is still 98.6MB. Free memory was 66.8MB in the beginning and 64.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.83ms. Allocated memory is still 98.6MB. Free memory was 64.2MB in the beginning and 62.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 803.82ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 62.3MB in the beginning and 94.0MB in the end (delta: -31.7MB). Peak memory consumption was 33.1MB. 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 15:37:59,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/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_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/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_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a92c386f0a3e93e7f4997075243ca49a5a9660dc1b84c645c53a036868e1508d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:38:02,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:38:02,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:38:02,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:38:02,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:38:02,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:38:02,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:38:02,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:38:02,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:38:02,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:38:02,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:38:02,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:38:02,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:38:02,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:38:02,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:38:02,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:38:02,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:38:02,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:38:02,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:38:02,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:38:02,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:38:02,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:38:02,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:38:02,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:38:02,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:38:02,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:38:02,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:38:02,244 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:38:02,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:38:02,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:38:02,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:38:02,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:38:02,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:38:02,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:38:02,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:38:02,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:38:02,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:38:02,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:38:02,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:38:02,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:38:02,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:38:02,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2021-11-23 15:38:02,309 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:38:02,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:38:02,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:38:02,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:38:02,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:38:02,313 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:38:02,313 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:38:02,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:38:02,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:38:02,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:38:02,315 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:38:02,315 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:38:02,315 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:38:02,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:38:02,316 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:38:02,316 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:38:02,316 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:38:02,316 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:38:02,316 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:38:02,317 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:38:02,317 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:38:02,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:38:02,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:38:02,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:38:02,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:38:02,318 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:38:02,318 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:38:02,318 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:38:02,319 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:38:02,319 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_d825084c-a61a-4c74-b6cf-cda0456f3628/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a92c386f0a3e93e7f4997075243ca49a5a9660dc1b84c645c53a036868e1508d [2021-11-23 15:38:02,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:38:02,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:38:02,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:38:02,712 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:38:02,713 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:38:02,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i [2021-11-23 15:38:02,798 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/data/49c22d945/235da8b176e347a5ab17c748b5c7e995/FLAGe94114122 [2021-11-23 15:38:03,487 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:38:03,488 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i [2021-11-23 15:38:03,502 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/data/49c22d945/235da8b176e347a5ab17c748b5c7e995/FLAGe94114122 [2021-11-23 15:38:03,745 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/data/49c22d945/235da8b176e347a5ab17c748b5c7e995 [2021-11-23 15:38:03,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:38:03,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:38:03,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:38:03,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:38:03,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:38:03,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:38:03" (1/1) ... [2021-11-23 15:38:03,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63972925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:03, skipping insertion in model container [2021-11-23 15:38:03,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:38:03" (1/1) ... [2021-11-23 15:38:03,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:38:03,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:38:04,244 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:38:04,261 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:38:04,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:38:04,347 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:38:04,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:04 WrapperNode [2021-11-23 15:38:04,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:38:04,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:38:04,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:38:04,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:38:04,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:04" (1/1) ... [2021-11-23 15:38:04,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:04" (1/1) ... [2021-11-23 15:38:04,449 INFO L137 Inliner]: procedures = 128, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 155 [2021-11-23 15:38:04,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:38:04,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:38:04,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:38:04,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:38:04,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:04" (1/1) ... [2021-11-23 15:38:04,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:04" (1/1) ... [2021-11-23 15:38:04,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:04" (1/1) ... [2021-11-23 15:38:04,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:04" (1/1) ... [2021-11-23 15:38:04,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:04" (1/1) ... [2021-11-23 15:38:04,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:04" (1/1) ... [2021-11-23 15:38:04,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:04" (1/1) ... [2021-11-23 15:38:04,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:38:04,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:38:04,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:38:04,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:38:04,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:04" (1/1) ... [2021-11-23 15:38:04,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:38:04,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:38:04,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:38:04,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:38:04,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:38:04,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:38:04,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:38:04,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:38:04,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:38:04,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:38:04,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:38:04,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:38:04,800 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:38:04,802 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:38:05,675 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:38:05,722 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:38:05,727 INFO L158 Benchmark]: Toolchain (without parser) took 1974.56ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 48.9MB in the beginning and 80.8MB in the end (delta: -31.8MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2021-11-23 15:38:05,728 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 71.3MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:38:05,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 590.74ms. Allocated memory is still 71.3MB. Free memory was 48.8MB in the beginning and 46.0MB in the end (delta: 2.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 15:38:05,729 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.81ms. Allocated memory is still 71.3MB. Free memory was 46.0MB in the beginning and 43.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:38:05,730 INFO L158 Benchmark]: Boogie Preprocessor took 80.11ms. Allocated memory is still 71.3MB. Free memory was 43.5MB in the beginning and 41.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:38:05,731 INFO L158 Benchmark]: RCFGBuilder took 1192.64ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 41.4MB in the beginning and 80.8MB in the end (delta: -39.4MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2021-11-23 15:38:05,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 71.3MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 590.74ms. Allocated memory is still 71.3MB. Free memory was 48.8MB in the beginning and 46.0MB in the end (delta: 2.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.81ms. Allocated memory is still 71.3MB. Free memory was 46.0MB in the beginning and 43.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.11ms. Allocated memory is still 71.3MB. Free memory was 43.5MB in the beginning and 41.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1192.64ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 41.4MB in the beginning and 80.8MB in the end (delta: -39.4MB). Peak memory consumption was 16.3MB. 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 15:38:05,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d825084c-a61a-4c74-b6cf-cda0456f3628/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