./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2c_remove_all.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_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/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_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2c_remove_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/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_4a162f4d-b284-482c-8978-472fc8404b93/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 6c2ed91303515fb47ae50633bb4ba0c83e07781b13d03a95e0e32251f9fc3016 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:51:31,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:51:31,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:51:31,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:51:31,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:51:31,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:51:31,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:51:31,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:51:31,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:51:31,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:51:31,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:51:31,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:51:31,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:51:31,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:51:31,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:51:31,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:51:31,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:51:31,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:51:31,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:51:31,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:51:31,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:51:31,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:51:31,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:51:31,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:51:31,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:51:31,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:51:31,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:51:31,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:51:31,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:51:31,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:51:31,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:51:31,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:51:31,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:51:31,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:51:31,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:51:31,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:51:31,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:51:31,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:51:31,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:51:31,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:51:31,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:51:31,157 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:51:31,204 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:51:31,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:51:31,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:51:31,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:51:31,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:51:31,209 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:51:31,209 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:51:31,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:51:31,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:51:31,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:51:31,211 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:51:31,211 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:51:31,212 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:51:31,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:51:31,212 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:51:31,212 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:51:31,213 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:51:31,213 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:51:31,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:51:31,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:51:31,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:51:31,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:51:31,214 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:51:31,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:51:31,214 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_4a162f4d-b284-482c-8978-472fc8404b93/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c2ed91303515fb47ae50633bb4ba0c83e07781b13d03a95e0e32251f9fc3016 [2021-11-23 15:51:31,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:51:31,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:51:31,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:51:31,603 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:51:31,604 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:51:31,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/dll2c_remove_all.i [2021-11-23 15:51:31,664 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/data/883eb5b84/d2db202ac3ca483fa60e0ab3d78f7192/FLAG50668d6f1 [2021-11-23 15:51:32,128 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:51:32,129 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/sv-benchmarks/c/list-simple/dll2c_remove_all.i [2021-11-23 15:51:32,141 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/data/883eb5b84/d2db202ac3ca483fa60e0ab3d78f7192/FLAG50668d6f1 [2021-11-23 15:51:32,486 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/data/883eb5b84/d2db202ac3ca483fa60e0ab3d78f7192 [2021-11-23 15:51:32,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:51:32,492 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:51:32,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:51:32,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:51:32,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:51:32,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:51:32" (1/1) ... [2021-11-23 15:51:32,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cccadcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:32, skipping insertion in model container [2021-11-23 15:51:32,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:51:32" (1/1) ... [2021-11-23 15:51:32,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:51:32,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:51:32,894 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_4a162f4d-b284-482c-8978-472fc8404b93/sv-benchmarks/c/list-simple/dll2c_remove_all.i[24169,24182] [2021-11-23 15:51:32,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:51:32,904 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:51:32,944 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_4a162f4d-b284-482c-8978-472fc8404b93/sv-benchmarks/c/list-simple/dll2c_remove_all.i[24169,24182] [2021-11-23 15:51:32,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:51:32,976 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:51:32,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:32 WrapperNode [2021-11-23 15:51:32,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:51:32,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:51:32,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:51:32,981 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:51:32,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:32" (1/1) ... [2021-11-23 15:51:33,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:32" (1/1) ... [2021-11-23 15:51:33,066 INFO L137 Inliner]: procedures = 126, calls = 38, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 125 [2021-11-23 15:51:33,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:51:33,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:51:33,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:51:33,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:51:33,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:32" (1/1) ... [2021-11-23 15:51:33,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:32" (1/1) ... [2021-11-23 15:51:33,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:32" (1/1) ... [2021-11-23 15:51:33,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:32" (1/1) ... [2021-11-23 15:51:33,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:32" (1/1) ... [2021-11-23 15:51:33,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:32" (1/1) ... [2021-11-23 15:51:33,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:32" (1/1) ... [2021-11-23 15:51:33,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:51:33,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:51:33,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:51:33,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:51:33,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:32" (1/1) ... [2021-11-23 15:51:33,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:51:33,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:51:33,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:51:33,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:51:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:51:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:51:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:51:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:51:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:51:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:51:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:51:33,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:51:33,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:51:33,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:51:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:51:33,289 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:51:33,291 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:51:33,313 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:51:33,317 INFO L158 Benchmark]: Toolchain (without parser) took 823.94ms. Allocated memory is still 96.5MB. Free memory was 53.5MB in the beginning and 51.2MB in the end (delta: 2.3MB). Peak memory consumption was 551.8kB. Max. memory is 16.1GB. [2021-11-23 15:51:33,318 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 96.5MB. Free memory was 70.9MB in the beginning and 70.9MB in the end (delta: 45.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:51:33,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.58ms. Allocated memory is still 96.5MB. Free memory was 53.2MB in the beginning and 63.0MB in the end (delta: -9.7MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2021-11-23 15:51:33,319 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.83ms. Allocated memory is still 96.5MB. Free memory was 63.0MB in the beginning and 60.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:51:33,320 INFO L158 Benchmark]: Boogie Preprocessor took 35.17ms. Allocated memory is still 96.5MB. Free memory was 60.8MB in the beginning and 58.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:51:33,321 INFO L158 Benchmark]: RCFGBuilder took 211.66ms. Allocated memory is still 96.5MB. Free memory was 58.9MB in the beginning and 51.2MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 15:51:33,325 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 96.5MB. Free memory was 70.9MB in the beginning and 70.9MB in the end (delta: 45.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 483.58ms. Allocated memory is still 96.5MB. Free memory was 53.2MB in the beginning and 63.0MB in the end (delta: -9.7MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.83ms. Allocated memory is still 96.5MB. Free memory was 63.0MB in the beginning and 60.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.17ms. Allocated memory is still 96.5MB. Free memory was 60.8MB in the beginning and 58.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 211.66ms. Allocated memory is still 96.5MB. Free memory was 58.9MB in the beginning and 51.2MB in the end (delta: 7.8MB). 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 15:51:33,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/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_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/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_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2c_remove_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/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_4a162f4d-b284-482c-8978-472fc8404b93/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 6c2ed91303515fb47ae50633bb4ba0c83e07781b13d03a95e0e32251f9fc3016 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:51:35,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:51:35,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:51:35,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:51:35,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:51:35,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:51:35,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:51:35,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:51:35,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:51:35,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:51:35,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:51:35,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:51:35,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:51:35,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:51:35,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:51:35,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:51:35,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:51:35,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:51:35,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:51:35,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:51:35,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:51:35,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:51:35,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:51:35,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:51:35,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:51:35,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:51:35,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:51:35,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:51:35,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:51:35,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:51:35,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:51:35,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:51:35,859 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:51:35,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:51:35,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:51:35,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:51:35,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:51:35,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:51:35,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:51:35,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:51:35,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:51:35,881 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2021-11-23 15:51:35,909 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:51:35,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:51:35,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:51:35,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:51:35,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:51:35,911 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:51:35,911 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:51:35,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:51:35,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:51:35,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:51:35,912 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:51:35,912 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:51:35,913 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:51:35,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:51:35,913 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:51:35,913 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:51:35,913 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:51:35,913 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:51:35,914 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:51:35,914 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:51:35,914 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:51:35,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:51:35,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:51:35,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:51:35,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:51:35,915 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:51:35,915 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:51:35,915 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:51:35,916 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:51:35,916 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_4a162f4d-b284-482c-8978-472fc8404b93/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c2ed91303515fb47ae50633bb4ba0c83e07781b13d03a95e0e32251f9fc3016 [2021-11-23 15:51:36,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:51:36,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:51:36,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:51:36,331 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:51:36,331 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:51:36,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/dll2c_remove_all.i [2021-11-23 15:51:36,399 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/data/1d67182ba/66088c09b6624b04ab1526bcc8332db1/FLAG9c77cd987 [2021-11-23 15:51:36,990 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:51:36,991 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/sv-benchmarks/c/list-simple/dll2c_remove_all.i [2021-11-23 15:51:37,003 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/data/1d67182ba/66088c09b6624b04ab1526bcc8332db1/FLAG9c77cd987 [2021-11-23 15:51:37,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/data/1d67182ba/66088c09b6624b04ab1526bcc8332db1 [2021-11-23 15:51:37,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:51:37,265 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:51:37,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:51:37,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:51:37,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:51:37,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:51:37" (1/1) ... [2021-11-23 15:51:37,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75759ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:37, skipping insertion in model container [2021-11-23 15:51:37,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:51:37" (1/1) ... [2021-11-23 15:51:37,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:51:37,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:51:37,621 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_4a162f4d-b284-482c-8978-472fc8404b93/sv-benchmarks/c/list-simple/dll2c_remove_all.i[24169,24182] [2021-11-23 15:51:37,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:51:37,650 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:51:37,741 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_4a162f4d-b284-482c-8978-472fc8404b93/sv-benchmarks/c/list-simple/dll2c_remove_all.i[24169,24182] [2021-11-23 15:51:37,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:51:37,776 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:51:37,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:37 WrapperNode [2021-11-23 15:51:37,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:51:37,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:51:37,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:51:37,779 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:51:37,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:37" (1/1) ... [2021-11-23 15:51:37,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:37" (1/1) ... [2021-11-23 15:51:37,829 INFO L137 Inliner]: procedures = 129, calls = 38, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 126 [2021-11-23 15:51:37,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:51:37,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:51:37,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:51:37,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:51:37,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:37" (1/1) ... [2021-11-23 15:51:37,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:37" (1/1) ... [2021-11-23 15:51:37,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:37" (1/1) ... [2021-11-23 15:51:37,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:37" (1/1) ... [2021-11-23 15:51:37,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:37" (1/1) ... [2021-11-23 15:51:37,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:37" (1/1) ... [2021-11-23 15:51:37,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:37" (1/1) ... [2021-11-23 15:51:37,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:51:37,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:51:37,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:51:37,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:51:37,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:37" (1/1) ... [2021-11-23 15:51:37,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:51:37,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:51:37,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:51:37,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:51:37,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:51:37,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:51:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:51:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:51:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:51:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:51:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:51:37,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:51:37,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:51:37,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:51:37,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:51:38,132 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:51:38,134 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:51:38,190 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:51:38,202 INFO L158 Benchmark]: Toolchain (without parser) took 935.72ms. Allocated memory is still 65.0MB. Free memory was 43.4MB in the beginning and 45.8MB in the end (delta: -2.4MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2021-11-23 15:51:38,203 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 65.0MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:51:38,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 511.01ms. Allocated memory is still 65.0MB. Free memory was 43.3MB in the beginning and 39.6MB in the end (delta: 3.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:51:38,204 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.76ms. Allocated memory is still 65.0MB. Free memory was 39.4MB in the beginning and 37.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:51:38,205 INFO L158 Benchmark]: Boogie Preprocessor took 45.08ms. Allocated memory is still 65.0MB. Free memory was 37.2MB in the beginning and 35.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:51:38,206 INFO L158 Benchmark]: RCFGBuilder took 323.68ms. Allocated memory is still 65.0MB. Free memory was 35.2MB in the beginning and 45.8MB in the end (delta: -10.6MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2021-11-23 15:51:38,222 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 65.0MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 511.01ms. Allocated memory is still 65.0MB. Free memory was 43.3MB in the beginning and 39.6MB in the end (delta: 3.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.76ms. Allocated memory is still 65.0MB. Free memory was 39.4MB in the beginning and 37.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.08ms. Allocated memory is still 65.0MB. Free memory was 37.2MB in the beginning and 35.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 323.68ms. Allocated memory is still 65.0MB. Free memory was 35.2MB in the beginning and 45.8MB in the end (delta: -10.6MB). Peak memory consumption was 13.1MB. 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.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:51:38,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a162f4d-b284-482c-8978-472fc8404b93/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