./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2c_update_all_reverse.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_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/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_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/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_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/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 5247496942546516118f3c28fa350944e097bdf15ee64734ca287a29ad51a034 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:44:06,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:44:06,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:44:06,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:44:06,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:44:06,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:44:06,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:44:06,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:44:06,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:44:06,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:44:06,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:44:06,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:44:06,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:44:06,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:44:06,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:44:06,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:44:06,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:44:06,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:44:06,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:44:06,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:44:06,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:44:06,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:44:06,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:44:06,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:44:06,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:44:06,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:44:06,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:44:06,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:44:06,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:44:06,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:44:06,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:44:06,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:44:06,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:44:06,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:44:06,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:44:06,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:44:06,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:44:06,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:44:06,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:44:06,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:44:06,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:44:06,260 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:44:06,299 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:44:06,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:44:06,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:44:06,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:44:06,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:44:06,302 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:44:06,302 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:44:06,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:44:06,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:44:06,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:44:06,310 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:44:06,310 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:44:06,310 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:44:06,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:44:06,311 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:44:06,311 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:44:06,311 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:44:06,312 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:44:06,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:44:06,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:44:06,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:44:06,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:44:06,313 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:44:06,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:44:06,313 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_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5247496942546516118f3c28fa350944e097bdf15ee64734ca287a29ad51a034 [2021-11-23 15:44:06,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:44:06,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:44:06,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:44:06,680 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:44:06,681 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:44:06,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i [2021-11-23 15:44:06,763 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/data/c8cf7721e/34669653a6f7433fb391fee289e2c2c7/FLAGfce8bcbc4 [2021-11-23 15:44:07,264 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:44:07,264 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i [2021-11-23 15:44:07,291 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/data/c8cf7721e/34669653a6f7433fb391fee289e2c2c7/FLAGfce8bcbc4 [2021-11-23 15:44:07,581 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/data/c8cf7721e/34669653a6f7433fb391fee289e2c2c7 [2021-11-23 15:44:07,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:44:07,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:44:07,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:44:07,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:44:07,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:44:07,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:44:07" (1/1) ... [2021-11-23 15:44:07,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28882c4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:07, skipping insertion in model container [2021-11-23 15:44:07,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:44:07" (1/1) ... [2021-11-23 15:44:07,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:44:07,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:44:08,062 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_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i[24556,24569] [2021-11-23 15:44:08,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:44:08,075 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:44:08,145 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_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i[24556,24569] [2021-11-23 15:44:08,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:44:08,175 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:44:08,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:08 WrapperNode [2021-11-23 15:44:08,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:44:08,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:44:08,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:44:08,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:44:08,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:08" (1/1) ... [2021-11-23 15:44:08,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:08" (1/1) ... [2021-11-23 15:44:08,263 INFO L137 Inliner]: procedures = 126, calls = 29, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 151 [2021-11-23 15:44:08,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:44:08,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:44:08,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:44:08,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:44:08,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:08" (1/1) ... [2021-11-23 15:44:08,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:08" (1/1) ... [2021-11-23 15:44:08,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:08" (1/1) ... [2021-11-23 15:44:08,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:08" (1/1) ... [2021-11-23 15:44:08,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:08" (1/1) ... [2021-11-23 15:44:08,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:08" (1/1) ... [2021-11-23 15:44:08,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:08" (1/1) ... [2021-11-23 15:44:08,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:44:08,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:44:08,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:44:08,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:44:08,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:08" (1/1) ... [2021-11-23 15:44:08,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:44:08,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:44:08,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:44:08,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:44:08,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:44:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:44:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:44:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:44:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:44:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:44:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:44:08,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:44:08,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:44:08,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:44:08,559 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:44:08,560 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:44:08,614 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:44:08,619 INFO L158 Benchmark]: Toolchain (without parser) took 1031.19ms. Allocated memory is still 104.9MB. Free memory was 68.1MB in the beginning and 59.8MB in the end (delta: 8.2MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2021-11-23 15:44:08,619 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 104.9MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:44:08,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 585.89ms. Allocated memory is still 104.9MB. Free memory was 67.9MB in the beginning and 72.1MB in the end (delta: -4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:44:08,621 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.79ms. Allocated memory is still 104.9MB. Free memory was 72.1MB in the beginning and 69.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:44:08,621 INFO L158 Benchmark]: Boogie Preprocessor took 64.68ms. Allocated memory is still 104.9MB. Free memory was 69.7MB in the beginning and 67.9MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:44:08,622 INFO L158 Benchmark]: RCFGBuilder took 285.40ms. Allocated memory is still 104.9MB. Free memory was 67.6MB in the beginning and 59.8MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:44:08,626 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 104.9MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 585.89ms. Allocated memory is still 104.9MB. Free memory was 67.9MB in the beginning and 72.1MB in the end (delta: -4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.79ms. Allocated memory is still 104.9MB. Free memory was 72.1MB in the beginning and 69.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 64.68ms. Allocated memory is still 104.9MB. Free memory was 69.7MB in the beginning and 67.9MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 285.40ms. Allocated memory is still 104.9MB. Free memory was 67.6MB in the beginning and 59.8MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:44:08,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/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_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/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_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/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_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/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 5247496942546516118f3c28fa350944e097bdf15ee64734ca287a29ad51a034 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:44:11,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:44:11,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:44:11,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:44:11,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:44:11,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:44:11,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:44:11,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:44:11,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:44:11,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:44:11,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:44:11,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:44:11,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:44:11,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:44:11,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:44:11,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:44:11,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:44:11,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:44:11,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:44:11,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:44:11,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:44:11,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:44:11,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:44:11,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:44:11,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:44:11,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:44:11,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:44:11,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:44:11,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:44:11,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:44:11,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:44:11,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:44:11,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:44:11,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:44:11,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:44:11,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:44:11,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:44:11,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:44:11,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:44:11,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:44:11,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:44:11,253 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2021-11-23 15:44:11,294 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:44:11,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:44:11,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:44:11,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:44:11,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:44:11,297 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:44:11,297 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:44:11,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:44:11,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:44:11,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:44:11,298 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:44:11,299 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:44:11,299 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:44:11,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:44:11,299 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:44:11,299 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:44:11,300 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:44:11,300 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:44:11,300 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:44:11,300 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:44:11,300 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:44:11,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:44:11,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:44:11,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:44:11,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:44:11,301 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:44:11,302 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:44:11,302 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:44:11,302 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:44:11,302 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5247496942546516118f3c28fa350944e097bdf15ee64734ca287a29ad51a034 [2021-11-23 15:44:11,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:44:11,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:44:11,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:44:11,701 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:44:11,702 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:44:11,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i [2021-11-23 15:44:11,774 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/data/a930c417c/5471f8aa7e674e90a86e999f28b5bcf7/FLAGc82a80242 [2021-11-23 15:44:12,477 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:44:12,478 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i [2021-11-23 15:44:12,492 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/data/a930c417c/5471f8aa7e674e90a86e999f28b5bcf7/FLAGc82a80242 [2021-11-23 15:44:12,732 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/data/a930c417c/5471f8aa7e674e90a86e999f28b5bcf7 [2021-11-23 15:44:12,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:44:12,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:44:12,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:44:12,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:44:12,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:44:12,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:44:12" (1/1) ... [2021-11-23 15:44:12,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e2abd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:12, skipping insertion in model container [2021-11-23 15:44:12,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:44:12" (1/1) ... [2021-11-23 15:44:12,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:44:12,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:44:13,134 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_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i[24556,24569] [2021-11-23 15:44:13,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:44:13,153 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:44:13,201 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_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i[24556,24569] [2021-11-23 15:44:13,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:44:13,255 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:44:13,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:13 WrapperNode [2021-11-23 15:44:13,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:44:13,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:44:13,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:44:13,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:44:13,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:13" (1/1) ... [2021-11-23 15:44:13,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:13" (1/1) ... [2021-11-23 15:44:13,347 INFO L137 Inliner]: procedures = 129, calls = 29, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 151 [2021-11-23 15:44:13,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:44:13,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:44:13,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:44:13,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:44:13,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:13" (1/1) ... [2021-11-23 15:44:13,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:13" (1/1) ... [2021-11-23 15:44:13,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:13" (1/1) ... [2021-11-23 15:44:13,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:13" (1/1) ... [2021-11-23 15:44:13,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:13" (1/1) ... [2021-11-23 15:44:13,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:13" (1/1) ... [2021-11-23 15:44:13,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:13" (1/1) ... [2021-11-23 15:44:13,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:44:13,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:44:13,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:44:13,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:44:13,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:13" (1/1) ... [2021-11-23 15:44:13,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:44:13,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:44:13,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:44:13,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:44:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:44:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:44:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:44:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:44:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:44:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:44:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:44:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:44:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:44:13,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:44:13,641 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:44:13,642 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:44:13,666 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:44:13,670 INFO L158 Benchmark]: Toolchain (without parser) took 929.26ms. Allocated memory is still 69.2MB. Free memory was 49.5MB in the beginning and 36.9MB in the end (delta: 12.6MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2021-11-23 15:44:13,671 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 69.2MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:44:13,671 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.17ms. Allocated memory is still 69.2MB. Free memory was 49.4MB in the beginning and 49.3MB in the end (delta: 156.4kB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2021-11-23 15:44:13,672 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.59ms. Allocated memory is still 69.2MB. Free memory was 49.3MB in the beginning and 46.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:44:13,673 INFO L158 Benchmark]: Boogie Preprocessor took 58.62ms. Allocated memory is still 69.2MB. Free memory was 46.9MB in the beginning and 44.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:44:13,674 INFO L158 Benchmark]: RCFGBuilder took 260.75ms. Allocated memory is still 69.2MB. Free memory was 44.9MB in the beginning and 36.9MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:44:13,677 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 69.2MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 515.17ms. Allocated memory is still 69.2MB. Free memory was 49.4MB in the beginning and 49.3MB in the end (delta: 156.4kB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.59ms. Allocated memory is still 69.2MB. Free memory was 49.3MB in the beginning and 46.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.62ms. Allocated memory is still 69.2MB. Free memory was 46.9MB in the beginning and 44.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 260.75ms. Allocated memory is still 69.2MB. Free memory was 44.9MB in the beginning and 36.9MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:44:13,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa9a2d-1feb-4f0b-b1f2-742ff6a6e5fb/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