./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.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_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/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_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/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_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/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 3b4637ab5710a1ca22a981e8047278048fbbf856825d3649b2cb9d48de11d175 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:49:34,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:49:34,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:49:34,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:49:34,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:49:34,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:49:34,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:49:34,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:49:34,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:49:34,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:49:34,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:49:34,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:49:34,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:49:34,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:49:34,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:49:34,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:49:34,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:49:34,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:49:34,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:49:34,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:49:34,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:49:34,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:49:34,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:49:34,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:49:34,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:49:34,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:49:34,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:49:34,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:49:34,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:49:34,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:49:34,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:49:34,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:49:34,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:49:34,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:49:34,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:49:34,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:49:34,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:49:34,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:49:34,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:49:34,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:49:34,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:49:34,850 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:49:34,883 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:49:34,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:49:34,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:49:34,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:49:34,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:49:34,886 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:49:34,887 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:49:34,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:49:34,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:49:34,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:49:34,888 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:49:34,888 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:49:34,889 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:49:34,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:49:34,889 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:49:34,890 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:49:34,890 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:49:34,890 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:49:34,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:49:34,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:49:34,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:49:34,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:49:34,892 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:49:34,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:49:34,893 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_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b4637ab5710a1ca22a981e8047278048fbbf856825d3649b2cb9d48de11d175 [2021-11-23 15:49:35,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:49:35,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:49:35,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:49:35,229 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:49:35,230 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:49:35,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2021-11-23 15:49:35,314 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/data/d157a0b18/a3dd5e3a16ca4ba6a0131a0939725015/FLAG15754322d [2021-11-23 15:49:35,986 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:49:35,987 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2021-11-23 15:49:36,005 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/data/d157a0b18/a3dd5e3a16ca4ba6a0131a0939725015/FLAG15754322d [2021-11-23 15:49:36,256 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/data/d157a0b18/a3dd5e3a16ca4ba6a0131a0939725015 [2021-11-23 15:49:36,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:49:36,265 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:49:36,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:49:36,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:49:36,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:49:36,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:36" (1/1) ... [2021-11-23 15:49:36,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62dbb4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36, skipping insertion in model container [2021-11-23 15:49:36,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:36" (1/1) ... [2021-11-23 15:49:36,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:49:36,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:49:36,840 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_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i[23974,23987] [2021-11-23 15:49:36,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:49:36,866 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:49:36,940 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_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i[23974,23987] [2021-11-23 15:49:36,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:49:36,987 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:49:36,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36 WrapperNode [2021-11-23 15:49:36,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:49:36,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:49:36,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:49:36,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:49:37,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2021-11-23 15:49:37,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2021-11-23 15:49:37,084 INFO L137 Inliner]: procedures = 122, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 111 [2021-11-23 15:49:37,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:49:37,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:49:37,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:49:37,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:49:37,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2021-11-23 15:49:37,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2021-11-23 15:49:37,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2021-11-23 15:49:37,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2021-11-23 15:49:37,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2021-11-23 15:49:37,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2021-11-23 15:49:37,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2021-11-23 15:49:37,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:49:37,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:49:37,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:49:37,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:49:37,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:36" (1/1) ... [2021-11-23 15:49:37,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:49:37,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:49:37,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:49:37,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:49:37,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:49:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:49:37,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:49:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:49:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:49:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:49:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:49:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:49:37,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:49:37,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:49:37,412 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:49:37,414 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:49:37,440 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.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:49:37,446 INFO L158 Benchmark]: Toolchain (without parser) took 1179.83ms. Allocated memory is still 161.5MB. Free memory was 130.1MB in the beginning and 118.2MB in the end (delta: 11.9MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-11-23 15:49:37,447 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 96.5MB. Free memory was 51.9MB in the beginning and 51.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:49:37,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 721.45ms. Allocated memory is still 161.5MB. Free memory was 130.1MB in the beginning and 129.1MB in the end (delta: 936.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:49:37,449 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.63ms. Allocated memory is still 161.5MB. Free memory was 129.1MB in the beginning and 127.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:49:37,450 INFO L158 Benchmark]: Boogie Preprocessor took 59.41ms. Allocated memory is still 161.5MB. Free memory was 127.0MB in the beginning and 125.7MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:49:37,451 INFO L158 Benchmark]: RCFGBuilder took 295.05ms. Allocated memory is still 161.5MB. Free memory was 125.7MB in the beginning and 118.2MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:49:37,456 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 96.5MB. Free memory was 51.9MB in the beginning and 51.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 721.45ms. Allocated memory is still 161.5MB. Free memory was 130.1MB in the beginning and 129.1MB in the end (delta: 936.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.63ms. Allocated memory is still 161.5MB. Free memory was 129.1MB in the beginning and 127.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.41ms. Allocated memory is still 161.5MB. Free memory was 127.0MB in the beginning and 125.7MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 295.05ms. Allocated memory is still 161.5MB. Free memory was 125.7MB in the beginning and 118.2MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. 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.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:49:37,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/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_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/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_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/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_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/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 3b4637ab5710a1ca22a981e8047278048fbbf856825d3649b2cb9d48de11d175 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:49:40,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:49:40,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:49:40,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:49:40,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:49:40,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:49:40,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:49:40,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:49:40,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:49:40,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:49:40,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:49:40,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:49:40,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:49:40,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:49:40,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:49:40,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:49:40,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:49:40,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:49:40,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:49:40,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:49:40,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:49:40,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:49:40,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:49:40,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:49:40,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:49:40,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:49:40,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:49:40,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:49:40,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:49:40,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:49:40,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:49:40,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:49:40,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:49:40,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:49:40,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:49:40,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:49:40,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:49:40,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:49:40,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:49:40,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:49:40,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:49:40,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2021-11-23 15:49:40,707 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:49:40,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:49:40,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:49:40,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:49:40,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:49:40,711 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:49:40,711 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:49:40,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:49:40,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:49:40,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:49:40,712 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:49:40,712 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:49:40,713 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:49:40,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:49:40,713 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:49:40,713 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:49:40,714 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:49:40,714 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:49:40,714 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:49:40,715 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:49:40,715 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:49:40,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:49:40,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:49:40,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:49:40,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:49:40,716 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:49:40,717 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:49:40,717 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:49:40,717 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:49:40,718 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_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b4637ab5710a1ca22a981e8047278048fbbf856825d3649b2cb9d48de11d175 [2021-11-23 15:49:41,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:49:41,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:49:41,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:49:41,238 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:49:41,239 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:49:41,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2021-11-23 15:49:41,317 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/data/4fb6540b2/70b3c6d0898b494cb5b899210aef6829/FLAG7a6b65b63 [2021-11-23 15:49:41,990 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:49:41,991 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2021-11-23 15:49:42,009 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/data/4fb6540b2/70b3c6d0898b494cb5b899210aef6829/FLAG7a6b65b63 [2021-11-23 15:49:42,272 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/data/4fb6540b2/70b3c6d0898b494cb5b899210aef6829 [2021-11-23 15:49:42,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:49:42,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:49:42,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:49:42,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:49:42,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:49:42,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:42" (1/1) ... [2021-11-23 15:49:42,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@578095d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:42, skipping insertion in model container [2021-11-23 15:49:42,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:49:42" (1/1) ... [2021-11-23 15:49:42,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:49:42,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:49:42,885 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_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i[23974,23987] [2021-11-23 15:49:42,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:49:42,925 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:49:42,970 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_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i[23974,23987] [2021-11-23 15:49:42,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:49:43,015 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:49:43,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:43 WrapperNode [2021-11-23 15:49:43,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:49:43,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:49:43,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:49:43,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:49:43,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:43" (1/1) ... [2021-11-23 15:49:43,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:43" (1/1) ... [2021-11-23 15:49:43,094 INFO L137 Inliner]: procedures = 125, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 112 [2021-11-23 15:49:43,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:49:43,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:49:43,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:49:43,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:49:43,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:43" (1/1) ... [2021-11-23 15:49:43,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:43" (1/1) ... [2021-11-23 15:49:43,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:43" (1/1) ... [2021-11-23 15:49:43,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:43" (1/1) ... [2021-11-23 15:49:43,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:43" (1/1) ... [2021-11-23 15:49:43,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:43" (1/1) ... [2021-11-23 15:49:43,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:43" (1/1) ... [2021-11-23 15:49:43,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:49:43,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:49:43,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:49:43,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:49:43,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:49:43" (1/1) ... [2021-11-23 15:49:43,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:49:43,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:49:43,225 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:49:43,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:49:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:49:43,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:49:43,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:49:43,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:49:43,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:49:43,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:49:43,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:49:43,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:49:43,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:49:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:49:43,495 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:49:43,497 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:49:43,538 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.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:49:43,547 INFO L158 Benchmark]: Toolchain (without parser) took 1268.31ms. Allocated memory is still 62.9MB. Free memory was 41.5MB in the beginning and 26.6MB in the end (delta: 14.8MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-11-23 15:49:43,549 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 62.9MB. Free memory is still 43.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:49:43,551 INFO L158 Benchmark]: CACSL2BoogieTranslator took 737.57ms. Allocated memory is still 62.9MB. Free memory was 41.2MB in the beginning and 38.1MB in the end (delta: 3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:49:43,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.33ms. Allocated memory is still 62.9MB. Free memory was 37.9MB in the beginning and 35.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:49:43,554 INFO L158 Benchmark]: Boogie Preprocessor took 91.38ms. Allocated memory is still 62.9MB. Free memory was 35.9MB in the beginning and 34.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:49:43,556 INFO L158 Benchmark]: RCFGBuilder took 352.65ms. Allocated memory is still 62.9MB. Free memory was 34.0MB in the beginning and 26.6MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 15:49:43,560 INFO L339 ainManager$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 62.9MB. Free memory is still 43.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 737.57ms. Allocated memory is still 62.9MB. Free memory was 41.2MB in the beginning and 38.1MB in the end (delta: 3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.33ms. Allocated memory is still 62.9MB. Free memory was 37.9MB in the beginning and 35.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.38ms. Allocated memory is still 62.9MB. Free memory was 35.9MB in the beginning and 34.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 352.65ms. Allocated memory is still 62.9MB. Free memory was 34.0MB in the beginning and 26.6MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. 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.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:49:43,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e732ad84-ba72-4138-bc8f-31eb0bbefcb3/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