./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/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_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d5c55d9a4a2ded389ff7ce077afdc88fb2d2855921e5fd1e3b93fbba7e140e8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:02:42,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:02:42,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:02:42,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:02:42,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:02:42,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:02:42,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:02:42,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:02:42,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:02:42,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:02:42,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:02:42,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:02:42,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:02:42,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:02:42,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:02:42,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:02:42,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:02:42,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:02:42,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:02:42,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:02:42,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:02:42,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:02:42,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:02:42,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:02:42,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:02:42,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:02:42,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:02:42,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:02:42,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:02:42,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:02:42,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:02:42,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:02:42,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:02:42,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:02:42,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:02:42,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:02:42,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:02:42,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:02:42,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:02:42,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:02:42,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:02:42,219 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:02:42,265 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:02:42,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:02:42,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:02:42,267 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:02:42,268 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:02:42,268 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:02:42,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:02:42,269 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:02:42,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:02:42,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:02:42,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:02:42,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:02:42,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:02:42,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:02:42,277 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:02:42,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:02:42,278 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:02:42,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:02:42,278 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:02:42,278 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:02:42,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:02:42,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:02:42,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:02:42,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:02:42,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:02:42,279 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:02:42,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:02:42,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:02:42,280 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_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d5c55d9a4a2ded389ff7ce077afdc88fb2d2855921e5fd1e3b93fbba7e140e8 [2021-11-23 15:02:42,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:02:42,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:02:42,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:02:42,626 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:02:42,627 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:02:42,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i [2021-11-23 15:02:42,717 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/data/55a9454f2/cfb7599eb44f40c1baab60c125eda0a3/FLAGe2f65a6d6 [2021-11-23 15:02:43,391 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:02:43,392 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i [2021-11-23 15:02:43,417 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/data/55a9454f2/cfb7599eb44f40c1baab60c125eda0a3/FLAGe2f65a6d6 [2021-11-23 15:02:43,648 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/data/55a9454f2/cfb7599eb44f40c1baab60c125eda0a3 [2021-11-23 15:02:43,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:02:43,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:02:43,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:02:43,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:02:43,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:02:43,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:02:43" (1/1) ... [2021-11-23 15:02:43,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bfb2f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:43, skipping insertion in model container [2021-11-23 15:02:43,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:02:43" (1/1) ... [2021-11-23 15:02:43,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:02:43,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:02:44,182 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_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i[24275,24288] [2021-11-23 15:02:44,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:02:44,194 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:02:44,234 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_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i[24275,24288] [2021-11-23 15:02:44,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:02:44,267 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:02:44,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:44 WrapperNode [2021-11-23 15:02:44,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:02:44,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:02:44,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:02:44,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:02:44,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:44" (1/1) ... [2021-11-23 15:02:44,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:44" (1/1) ... [2021-11-23 15:02:44,317 INFO L137 Inliner]: procedures = 126, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2021-11-23 15:02:44,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:02:44,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:02:44,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:02:44,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:02:44,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:44" (1/1) ... [2021-11-23 15:02:44,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:44" (1/1) ... [2021-11-23 15:02:44,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:44" (1/1) ... [2021-11-23 15:02:44,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:44" (1/1) ... [2021-11-23 15:02:44,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:44" (1/1) ... [2021-11-23 15:02:44,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:44" (1/1) ... [2021-11-23 15:02:44,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:44" (1/1) ... [2021-11-23 15:02:44,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:02:44,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:02:44,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:02:44,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:02:44,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:44" (1/1) ... [2021-11-23 15:02:44,378 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:02:44,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:02:44,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:02:44,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:02:44,468 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-23 15:02:44,468 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-23 15:02:44,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:02:44,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:02:44,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:02:44,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:02:44,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:02:44,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:02:44,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:02:44,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:02:44,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:02:44,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:02:44,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:02:44,661 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:02:44,663 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:02:44,684 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:02:44,689 INFO L158 Benchmark]: Toolchain (without parser) took 1034.52ms. Allocated memory is still 119.5MB. Free memory was 85.4MB in the beginning and 77.0MB in the end (delta: 8.3MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-11-23 15:02:44,689 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory was 42.9MB in the beginning and 42.8MB in the end (delta: 45.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:02:44,690 INFO L158 Benchmark]: CACSL2BoogieTranslator took 609.93ms. Allocated memory is still 119.5MB. Free memory was 85.1MB in the beginning and 87.8MB in the end (delta: -2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:02:44,691 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.85ms. Allocated memory is still 119.5MB. Free memory was 87.8MB in the beginning and 85.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:02:44,692 INFO L158 Benchmark]: Boogie Preprocessor took 38.30ms. Allocated memory is still 119.5MB. Free memory was 85.9MB in the beginning and 84.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:02:44,693 INFO L158 Benchmark]: RCFGBuilder took 329.65ms. Allocated memory is still 119.5MB. Free memory was 84.2MB in the beginning and 77.0MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:02:44,697 INFO L339 ainManager$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 83.9MB. Free memory was 42.9MB in the beginning and 42.8MB in the end (delta: 45.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 609.93ms. Allocated memory is still 119.5MB. Free memory was 85.1MB in the beginning and 87.8MB in the end (delta: -2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.85ms. Allocated memory is still 119.5MB. Free memory was 87.8MB in the beginning and 85.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.30ms. Allocated memory is still 119.5MB. Free memory was 85.9MB in the beginning and 84.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 329.65ms. Allocated memory is still 119.5MB. Free memory was 84.2MB in the beginning and 77.0MB in the end (delta: 7.2MB). 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 15:02:44,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/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_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/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_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d5c55d9a4a2ded389ff7ce077afdc88fb2d2855921e5fd1e3b93fbba7e140e8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:02:47,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:02:47,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:02:47,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:02:47,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:02:47,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:02:47,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:02:47,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:02:47,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:02:47,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:02:47,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:02:47,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:02:47,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:02:47,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:02:47,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:02:47,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:02:47,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:02:47,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:02:47,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:02:47,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:02:47,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:02:47,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:02:47,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:02:47,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:02:47,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:02:47,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:02:47,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:02:47,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:02:47,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:02:47,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:02:47,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:02:47,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:02:47,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:02:47,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:02:47,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:02:47,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:02:47,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:02:47,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:02:47,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:02:47,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:02:47,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:02:47,372 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:02:47,401 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:02:47,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:02:47,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:02:47,403 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:02:47,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:02:47,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:02:47,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:02:47,408 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:02:47,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:02:47,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:02:47,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:02:47,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:02:47,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:02:47,410 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:02:47,410 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:02:47,410 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:02:47,411 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:02:47,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:02:47,411 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:02:47,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:02:47,412 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:02:47,412 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:02:47,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:02:47,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:02:47,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:02:47,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:02:47,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:02:47,414 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:02:47,414 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:02:47,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:02:47,415 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:02:47,415 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:02:47,415 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_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d5c55d9a4a2ded389ff7ce077afdc88fb2d2855921e5fd1e3b93fbba7e140e8 [2021-11-23 15:02:47,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:02:47,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:02:47,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:02:47,832 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:02:47,833 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:02:47,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i [2021-11-23 15:02:47,912 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/data/47828cbb1/42750f88bf404eaa828f511ebbeb6129/FLAG6b76b6687 [2021-11-23 15:02:48,546 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:02:48,552 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i [2021-11-23 15:02:48,570 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/data/47828cbb1/42750f88bf404eaa828f511ebbeb6129/FLAG6b76b6687 [2021-11-23 15:02:48,814 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/data/47828cbb1/42750f88bf404eaa828f511ebbeb6129 [2021-11-23 15:02:48,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:02:48,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:02:48,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:02:48,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:02:48,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:02:48,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:02:48" (1/1) ... [2021-11-23 15:02:48,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d788f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:48, skipping insertion in model container [2021-11-23 15:02:48,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:02:48" (1/1) ... [2021-11-23 15:02:48,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:02:48,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:02:49,211 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_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i[24275,24288] [2021-11-23 15:02:49,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:02:49,226 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:02:49,268 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_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i[24275,24288] [2021-11-23 15:02:49,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:02:49,301 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:02:49,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49 WrapperNode [2021-11-23 15:02:49,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:02:49,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:02:49,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:02:49,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:02:49,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2021-11-23 15:02:49,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2021-11-23 15:02:49,350 INFO L137 Inliner]: procedures = 129, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2021-11-23 15:02:49,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:02:49,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:02:49,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:02:49,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:02:49,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2021-11-23 15:02:49,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2021-11-23 15:02:49,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2021-11-23 15:02:49,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2021-11-23 15:02:49,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2021-11-23 15:02:49,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2021-11-23 15:02:49,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2021-11-23 15:02:49,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:02:49,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:02:49,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:02:49,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:02:49,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:02:49" (1/1) ... [2021-11-23 15:02:49,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:02:49,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:02:49,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:02:49,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:02:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-23 15:02:49,483 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-23 15:02:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:02:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:02:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:02:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:02:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:02:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:02:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:02:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:02:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:02:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:02:49,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:02:49,589 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:02:49,591 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:02:49,600 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:02:49,604 INFO L158 Benchmark]: Toolchain (without parser) took 782.80ms. Allocated memory was 56.6MB in the beginning and 79.7MB in the end (delta: 23.1MB). Free memory was 32.8MB in the beginning and 55.4MB in the end (delta: -22.6MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2021-11-23 15:02:49,605 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 56.6MB. Free memory was 36.4MB in the beginning and 36.4MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:02:49,606 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.53ms. Allocated memory is still 56.6MB. Free memory was 32.6MB in the beginning and 28.2MB in the end (delta: 4.4MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2021-11-23 15:02:49,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.18ms. Allocated memory is still 56.6MB. Free memory was 28.0MB in the beginning and 25.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:02:49,608 INFO L158 Benchmark]: Boogie Preprocessor took 44.28ms. Allocated memory is still 56.6MB. Free memory was 25.9MB in the beginning and 24.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:02:49,609 INFO L158 Benchmark]: RCFGBuilder took 205.61ms. Allocated memory was 56.6MB in the beginning and 79.7MB in the end (delta: 23.1MB). Free memory was 24.2MB in the beginning and 55.4MB in the end (delta: -31.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:02:49,613 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 56.6MB. Free memory was 36.4MB in the beginning and 36.4MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 479.53ms. Allocated memory is still 56.6MB. Free memory was 32.6MB in the beginning and 28.2MB in the end (delta: 4.4MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.18ms. Allocated memory is still 56.6MB. Free memory was 28.0MB in the beginning and 25.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.28ms. Allocated memory is still 56.6MB. Free memory was 25.9MB in the beginning and 24.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 205.61ms. Allocated memory was 56.6MB in the beginning and 79.7MB in the end (delta: 23.1MB). Free memory was 24.2MB in the beginning and 55.4MB in the end (delta: -31.2MB). Peak memory consumption was 4.2MB. 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 15:02:49,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75c9fd49-5f04-4a53-a33a-2bfaf21defa7/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