./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2n_append_equal.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_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/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_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_append_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/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_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/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 3a59620f668b7c0725f940bc66e10441fbb56ee9b9fb687de4bd19a3f12eaeda --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:03:40,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:03:40,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:03:40,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:03:40,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:03:40,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:03:40,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:03:40,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:03:40,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:03:40,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:03:40,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:03:40,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:03:40,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:03:40,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:03:40,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:03:40,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:03:40,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:03:40,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:03:40,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:03:40,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:03:40,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:03:40,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:03:40,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:03:40,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:03:40,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:03:40,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:03:40,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:03:40,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:03:40,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:03:40,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:03:40,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:03:40,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:03:40,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:03:40,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:03:40,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:03:40,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:03:40,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:03:40,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:03:40,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:03:40,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:03:40,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:03:40,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:03:40,915 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:03:40,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:03:40,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:03:40,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:03:40,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:03:40,919 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:03:40,919 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:03:40,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:03:40,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:03:40,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:03:40,921 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:03:40,921 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:03:40,921 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:03:40,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:03:40,922 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:03:40,922 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:03:40,922 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:03:40,923 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:03:40,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:03:40,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:40,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:03:40,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:03:40,924 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:03:40,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:03:40,924 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_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a59620f668b7c0725f940bc66e10441fbb56ee9b9fb687de4bd19a3f12eaeda [2021-11-23 15:03:41,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:03:41,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:03:41,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:03:41,245 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:03:41,246 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:03:41,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/dll2n_append_equal.i [2021-11-23 15:03:41,317 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/data/1b14510fa/91154f566afe4dc09d961810b6067e87/FLAG7e6e23133 [2021-11-23 15:03:41,861 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:03:41,861 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/sv-benchmarks/c/list-simple/dll2n_append_equal.i [2021-11-23 15:03:41,874 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/data/1b14510fa/91154f566afe4dc09d961810b6067e87/FLAG7e6e23133 [2021-11-23 15:03:42,164 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/data/1b14510fa/91154f566afe4dc09d961810b6067e87 [2021-11-23 15:03:42,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:03:42,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:03:42,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:42,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:03:42,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:03:42,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:42" (1/1) ... [2021-11-23 15:03:42,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@513cf096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:42, skipping insertion in model container [2021-11-23 15:03:42,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:42" (1/1) ... [2021-11-23 15:03:42,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:03:42,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:03:42,584 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_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/sv-benchmarks/c/list-simple/dll2n_append_equal.i[24333,24346] [2021-11-23 15:03:42,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:42,603 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:03:42,669 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_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/sv-benchmarks/c/list-simple/dll2n_append_equal.i[24333,24346] [2021-11-23 15:03:42,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:42,700 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:03:42,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:42 WrapperNode [2021-11-23 15:03:42,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:42,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:42,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:03:42,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:03:42,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:42" (1/1) ... [2021-11-23 15:03:42,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:42" (1/1) ... [2021-11-23 15:03:42,749 INFO L137 Inliner]: procedures = 127, calls = 37, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 139 [2021-11-23 15:03:42,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:42,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:03:42,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:03:42,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:03:42,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:42" (1/1) ... [2021-11-23 15:03:42,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:42" (1/1) ... [2021-11-23 15:03:42,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:42" (1/1) ... [2021-11-23 15:03:42,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:42" (1/1) ... [2021-11-23 15:03:42,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:42" (1/1) ... [2021-11-23 15:03:42,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:42" (1/1) ... [2021-11-23 15:03:42,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:42" (1/1) ... [2021-11-23 15:03:42,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:03:42,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:03:42,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:03:42,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:03:42,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:42" (1/1) ... [2021-11-23 15:03:42,817 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:42,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:03:42,838 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:03:42,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:03:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:03:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:03:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:03:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:03:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:03:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:03:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:03:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:03:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:03:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:03:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:03:42,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:03:42,980 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:03:42,982 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:03:43,004 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:03:43,008 INFO L158 Benchmark]: Toolchain (without parser) took 839.97ms. Allocated memory is still 107.0MB. Free memory was 69.8MB in the beginning and 64.0MB in the end (delta: 5.7MB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. [2021-11-23 15:03:43,008 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 107.0MB. Free memory was 87.5MB in the beginning and 87.4MB in the end (delta: 69.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:03:43,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.77ms. Allocated memory is still 107.0MB. Free memory was 69.5MB in the beginning and 76.0MB in the end (delta: -6.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:03:43,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.23ms. Allocated memory is still 107.0MB. Free memory was 76.0MB in the beginning and 73.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:03:43,011 INFO L158 Benchmark]: Boogie Preprocessor took 46.33ms. Allocated memory is still 107.0MB. Free memory was 73.9MB in the beginning and 72.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:03:43,011 INFO L158 Benchmark]: RCFGBuilder took 209.03ms. Allocated memory is still 107.0MB. Free memory was 71.8MB in the beginning and 64.0MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 15:03:43,015 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 107.0MB. Free memory was 87.5MB in the beginning and 87.4MB in the end (delta: 69.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 522.77ms. Allocated memory is still 107.0MB. Free memory was 69.5MB in the beginning and 76.0MB in the end (delta: -6.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.23ms. Allocated memory is still 107.0MB. Free memory was 76.0MB in the beginning and 73.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.33ms. Allocated memory is still 107.0MB. Free memory was 73.9MB in the beginning and 72.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 209.03ms. Allocated memory is still 107.0MB. Free memory was 71.8MB in the beginning and 64.0MB 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 15:03:43,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/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_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/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_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_append_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/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_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/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 3a59620f668b7c0725f940bc66e10441fbb56ee9b9fb687de4bd19a3f12eaeda --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:03:45,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:03:45,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:03:45,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:03:45,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:03:45,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:03:45,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:03:45,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:03:45,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:03:45,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:03:45,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:03:45,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:03:45,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:03:45,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:03:45,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:03:45,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:03:45,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:03:45,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:03:45,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:03:45,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:03:45,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:03:45,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:03:45,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:03:45,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:03:45,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:03:45,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:03:45,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:03:45,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:03:45,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:03:45,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:03:45,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:03:45,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:03:45,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:03:45,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:03:45,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:03:45,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:03:45,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:03:45,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:03:45,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:03:45,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:03:45,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:03:45,664 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2021-11-23 15:03:45,713 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:03:45,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:03:45,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:03:45,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:03:45,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:03:45,717 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:03:45,718 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:03:45,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:03:45,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:03:45,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:03:45,720 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:03:45,720 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:03:45,720 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:03:45,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:03:45,721 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:03:45,721 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:03:45,721 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:03:45,722 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:03:45,722 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:03:45,722 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:03:45,723 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:03:45,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:03:45,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:45,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:03:45,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:03:45,724 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:03:45,724 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:03:45,725 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:03:45,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:03:45,725 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_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a59620f668b7c0725f940bc66e10441fbb56ee9b9fb687de4bd19a3f12eaeda [2021-11-23 15:03:46,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:03:46,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:03:46,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:03:46,112 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:03:46,113 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:03:46,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/dll2n_append_equal.i [2021-11-23 15:03:46,179 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/data/91ec38826/a2156613be934a858934de46784f2710/FLAG3aff5a824 [2021-11-23 15:03:46,771 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:03:46,772 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/sv-benchmarks/c/list-simple/dll2n_append_equal.i [2021-11-23 15:03:46,792 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/data/91ec38826/a2156613be934a858934de46784f2710/FLAG3aff5a824 [2021-11-23 15:03:47,027 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/data/91ec38826/a2156613be934a858934de46784f2710 [2021-11-23 15:03:47,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:03:47,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:03:47,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:47,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:03:47,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:03:47,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:47" (1/1) ... [2021-11-23 15:03:47,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32423b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:47, skipping insertion in model container [2021-11-23 15:03:47,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:47" (1/1) ... [2021-11-23 15:03:47,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:03:47,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:03:47,491 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_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/sv-benchmarks/c/list-simple/dll2n_append_equal.i[24333,24346] [2021-11-23 15:03:47,498 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:47,517 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:03:47,559 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_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/sv-benchmarks/c/list-simple/dll2n_append_equal.i[24333,24346] [2021-11-23 15:03:47,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:03:47,600 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:03:47,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:47 WrapperNode [2021-11-23 15:03:47,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:03:47,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:47,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:03:47,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:03:47,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:47" (1/1) ... [2021-11-23 15:03:47,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:47" (1/1) ... [2021-11-23 15:03:47,667 INFO L137 Inliner]: procedures = 130, calls = 37, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 140 [2021-11-23 15:03:47,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:03:47,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:03:47,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:03:47,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:03:47,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:47" (1/1) ... [2021-11-23 15:03:47,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:47" (1/1) ... [2021-11-23 15:03:47,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:47" (1/1) ... [2021-11-23 15:03:47,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:47" (1/1) ... [2021-11-23 15:03:47,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:47" (1/1) ... [2021-11-23 15:03:47,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:47" (1/1) ... [2021-11-23 15:03:47,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:47" (1/1) ... [2021-11-23 15:03:47,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:03:47,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:03:47,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:03:47,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:03:47,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:47" (1/1) ... [2021-11-23 15:03:47,745 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:03:47,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:03:47,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:03:47,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:03:47,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:03:47,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:03:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:03:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:03:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:03:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:03:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:03:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:03:47,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:03:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:03:47,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:03:47,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:03:48,030 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:03:48,031 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:03:48,076 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:03:48,087 INFO L158 Benchmark]: Toolchain (without parser) took 1042.68ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 33.0MB in the beginning and 35.1MB in the end (delta: -2.1MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2021-11-23 15:03:48,088 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 48.2MB. Free memory was 29.7MB in the beginning and 29.7MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:03:48,089 INFO L158 Benchmark]: CACSL2BoogieTranslator took 561.66ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 32.8MB in the beginning and 34.2MB in the end (delta: -1.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:03:48,090 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.95ms. Allocated memory is still 58.7MB. Free memory was 34.2MB in the beginning and 31.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:03:48,091 INFO L158 Benchmark]: Boogie Preprocessor took 68.72ms. Allocated memory is still 58.7MB. Free memory was 31.7MB in the beginning and 29.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:03:48,091 INFO L158 Benchmark]: RCFGBuilder took 342.02ms. Allocated memory is still 58.7MB. Free memory was 29.8MB in the beginning and 35.1MB in the end (delta: -5.3MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-11-23 15:03:48,099 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 48.2MB. Free memory was 29.7MB in the beginning and 29.7MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 561.66ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 32.8MB in the beginning and 34.2MB in the end (delta: -1.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.95ms. Allocated memory is still 58.7MB. Free memory was 34.2MB in the beginning and 31.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.72ms. Allocated memory is still 58.7MB. Free memory was 31.7MB in the beginning and 29.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 342.02ms. Allocated memory is still 58.7MB. Free memory was 29.8MB in the beginning and 35.1MB in the end (delta: -5.3MB). Peak memory consumption was 5.3MB. 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 15:03:48,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb3c026f-cdf6-4aaa-ba66-ed4c579f31dc/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable