./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/sll2c_remove_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_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/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_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/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_9e6580af-f914-4ec2-9d72-d81afbde7966/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 3340815bef7e21ae2d4803d7059577c1761bb3b7b4bb24b2b34d5d0d0054fd10 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:56:19,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:56:19,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:56:19,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:56:19,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:56:19,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:56:19,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:56:19,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:56:19,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:56:19,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:56:19,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:56:19,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:56:19,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:56:19,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:56:19,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:56:19,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:56:19,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:56:19,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:56:19,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:56:19,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:56:19,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:56:19,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:56:19,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:56:19,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:56:19,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:56:19,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:56:19,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:56:19,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:56:19,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:56:19,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:56:19,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:56:19,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:56:19,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:56:19,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:56:19,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:56:19,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:56:19,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:56:19,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:56:19,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:56:19,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:56:19,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:56:19,250 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:56:19,290 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:56:19,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:56:19,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:56:19,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:56:19,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:56:19,292 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:56:19,293 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:56:19,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:56:19,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:56:19,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:56:19,293 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:56:19,293 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:56:19,298 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:56:19,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:56:19,298 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:56:19,299 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:56:19,299 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:56:19,299 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:56:19,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:56:19,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:56:19,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:56:19,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:56:19,301 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:56:19,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:56:19,301 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_9e6580af-f914-4ec2-9d72-d81afbde7966/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3340815bef7e21ae2d4803d7059577c1761bb3b7b4bb24b2b34d5d0d0054fd10 [2021-11-23 15:56:19,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:56:19,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:56:19,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:56:19,675 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:56:19,676 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:56:19,677 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i [2021-11-23 15:56:19,761 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/data/8419e0841/98cf657c5b3d4296bdc3c283ec4d9b52/FLAG347d763fa [2021-11-23 15:56:20,312 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:56:20,313 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i [2021-11-23 15:56:20,339 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/data/8419e0841/98cf657c5b3d4296bdc3c283ec4d9b52/FLAG347d763fa [2021-11-23 15:56:20,596 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/data/8419e0841/98cf657c5b3d4296bdc3c283ec4d9b52 [2021-11-23 15:56:20,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:56:20,601 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:56:20,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:56:20,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:56:20,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:56:20,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:20" (1/1) ... [2021-11-23 15:56:20,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3745db8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:20, skipping insertion in model container [2021-11-23 15:56:20,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:20" (1/1) ... [2021-11-23 15:56:20,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:56:20,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:56:21,112 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_9e6580af-f914-4ec2-9d72-d81afbde7966/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i[24151,24164] [2021-11-23 15:56:21,116 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:56:21,132 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:56:21,192 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_9e6580af-f914-4ec2-9d72-d81afbde7966/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i[24151,24164] [2021-11-23 15:56:21,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:56:21,230 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:56:21,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:21 WrapperNode [2021-11-23 15:56:21,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:56:21,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:56:21,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:56:21,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:56:21,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:21" (1/1) ... [2021-11-23 15:56:21,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:21" (1/1) ... [2021-11-23 15:56:21,313 INFO L137 Inliner]: procedures = 126, calls = 36, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 138 [2021-11-23 15:56:21,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:56:21,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:56:21,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:56:21,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:56:21,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:21" (1/1) ... [2021-11-23 15:56:21,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:21" (1/1) ... [2021-11-23 15:56:21,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:21" (1/1) ... [2021-11-23 15:56:21,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:21" (1/1) ... [2021-11-23 15:56:21,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:21" (1/1) ... [2021-11-23 15:56:21,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:21" (1/1) ... [2021-11-23 15:56:21,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:21" (1/1) ... [2021-11-23 15:56:21,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:56:21,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:56:21,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:56:21,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:56:21,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:21" (1/1) ... [2021-11-23 15:56:21,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:56:21,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:56:21,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:56:21,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:56:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:56:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:56:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:56:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:56:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:56:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:56:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:56:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:56:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:56:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:56:21,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:56:21,582 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:56:21,584 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:56:21,607 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:56:21,611 INFO L158 Benchmark]: Toolchain (without parser) took 1009.49ms. Allocated memory is still 92.3MB. Free memory was 55.5MB in the beginning and 46.9MB in the end (delta: 8.6MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2021-11-23 15:56:21,612 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 92.3MB. Free memory was 62.0MB in the beginning and 62.0MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:56:21,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.07ms. Allocated memory is still 92.3MB. Free memory was 55.4MB in the beginning and 58.6MB in the end (delta: -3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:56:21,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.75ms. Allocated memory is still 92.3MB. Free memory was 58.6MB in the beginning and 56.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:56:21,614 INFO L158 Benchmark]: Boogie Preprocessor took 46.43ms. Allocated memory is still 92.3MB. Free memory was 56.4MB in the beginning and 54.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:56:21,615 INFO L158 Benchmark]: RCFGBuilder took 248.28ms. Allocated memory is still 92.3MB. Free memory was 54.7MB in the beginning and 46.9MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:56:21,619 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 92.3MB. Free memory was 62.0MB in the beginning and 62.0MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 628.07ms. Allocated memory is still 92.3MB. Free memory was 55.4MB in the beginning and 58.6MB in the end (delta: -3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.75ms. Allocated memory is still 92.3MB. Free memory was 58.6MB in the beginning and 56.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.43ms. Allocated memory is still 92.3MB. Free memory was 56.4MB in the beginning and 54.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 248.28ms. Allocated memory is still 92.3MB. Free memory was 54.7MB in the beginning and 46.9MB in the end (delta: 7.7MB). 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 15:56:21,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/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_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/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_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/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_9e6580af-f914-4ec2-9d72-d81afbde7966/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 3340815bef7e21ae2d4803d7059577c1761bb3b7b4bb24b2b34d5d0d0054fd10 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:56:24,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:56:24,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:56:24,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:56:24,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:56:24,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:56:24,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:56:24,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:56:24,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:56:24,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:56:24,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:56:24,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:56:24,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:56:24,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:56:24,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:56:24,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:56:24,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:56:24,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:56:24,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:56:24,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:56:24,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:56:24,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:56:24,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:56:24,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:56:24,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:56:24,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:56:24,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:56:24,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:56:24,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:56:24,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:56:24,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:56:24,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:56:24,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:56:24,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:56:24,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:56:24,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:56:24,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:56:24,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:56:24,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:56:24,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:56:24,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:56:24,295 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2021-11-23 15:56:24,326 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:56:24,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:56:24,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:56:24,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:56:24,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:56:24,329 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:56:24,329 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:56:24,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:56:24,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:56:24,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:56:24,330 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:56:24,330 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:56:24,330 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:56:24,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:56:24,331 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:56:24,331 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:56:24,331 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:56:24,331 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:56:24,331 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:56:24,332 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:56:24,332 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:56:24,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:56:24,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:56:24,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:56:24,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:56:24,333 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:56:24,333 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:56:24,334 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:56:24,334 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:56:24,334 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_9e6580af-f914-4ec2-9d72-d81afbde7966/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3340815bef7e21ae2d4803d7059577c1761bb3b7b4bb24b2b34d5d0d0054fd10 [2021-11-23 15:56:24,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:56:24,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:56:24,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:56:24,755 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:56:24,756 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:56:24,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i [2021-11-23 15:56:24,838 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/data/6949ea2ef/9079a18e7be140c9932bd527d6d4a82f/FLAG07c230ee7 [2021-11-23 15:56:25,502 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:56:25,503 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i [2021-11-23 15:56:25,515 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/data/6949ea2ef/9079a18e7be140c9932bd527d6d4a82f/FLAG07c230ee7 [2021-11-23 15:56:25,768 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/data/6949ea2ef/9079a18e7be140c9932bd527d6d4a82f [2021-11-23 15:56:25,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:56:25,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:56:25,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:56:25,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:56:25,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:56:25,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:25" (1/1) ... [2021-11-23 15:56:25,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e88126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:25, skipping insertion in model container [2021-11-23 15:56:25,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:25" (1/1) ... [2021-11-23 15:56:25,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:56:25,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:56:26,294 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_9e6580af-f914-4ec2-9d72-d81afbde7966/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i[24151,24164] [2021-11-23 15:56:26,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:56:26,318 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:56:26,390 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_9e6580af-f914-4ec2-9d72-d81afbde7966/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i[24151,24164] [2021-11-23 15:56:26,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:56:26,439 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:56:26,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:26 WrapperNode [2021-11-23 15:56:26,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:56:26,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:56:26,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:56:26,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:56:26,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:26" (1/1) ... [2021-11-23 15:56:26,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:26" (1/1) ... [2021-11-23 15:56:26,534 INFO L137 Inliner]: procedures = 129, calls = 36, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 139 [2021-11-23 15:56:26,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:56:26,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:56:26,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:56:26,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:56:26,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:26" (1/1) ... [2021-11-23 15:56:26,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:26" (1/1) ... [2021-11-23 15:56:26,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:26" (1/1) ... [2021-11-23 15:56:26,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:26" (1/1) ... [2021-11-23 15:56:26,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:26" (1/1) ... [2021-11-23 15:56:26,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:26" (1/1) ... [2021-11-23 15:56:26,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:26" (1/1) ... [2021-11-23 15:56:26,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:56:26,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:56:26,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:56:26,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:56:26,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:26" (1/1) ... [2021-11-23 15:56:26,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:56:26,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:56:26,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:56:26,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:56:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:56:26,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:56:26,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:56:26,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:56:26,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:56:26,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:56:26,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:56:26,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:56:26,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:56:26,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:56:26,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:56:26,802 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:56:26,805 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:56:26,845 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:56:26,852 INFO L158 Benchmark]: Toolchain (without parser) took 1079.25ms. Allocated memory is still 75.5MB. Free memory was 55.6MB in the beginning and 38.3MB in the end (delta: 17.3MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2021-11-23 15:56:26,854 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 75.5MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:56:26,855 INFO L158 Benchmark]: CACSL2BoogieTranslator took 668.50ms. Allocated memory is still 75.5MB. Free memory was 55.5MB in the beginning and 50.6MB in the end (delta: 4.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:56:26,857 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.39ms. Allocated memory is still 75.5MB. Free memory was 50.3MB in the beginning and 48.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:56:26,858 INFO L158 Benchmark]: Boogie Preprocessor took 37.75ms. Allocated memory is still 75.5MB. Free memory was 48.1MB in the beginning and 46.1MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 15:56:26,860 INFO L158 Benchmark]: RCFGBuilder took 275.74ms. Allocated memory is still 75.5MB. Free memory was 46.1MB in the beginning and 38.3MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:56:26,864 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 75.5MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 668.50ms. Allocated memory is still 75.5MB. Free memory was 55.5MB in the beginning and 50.6MB in the end (delta: 4.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.39ms. Allocated memory is still 75.5MB. Free memory was 50.3MB in the beginning and 48.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.75ms. Allocated memory is still 75.5MB. Free memory was 48.1MB in the beginning and 46.1MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 275.74ms. Allocated memory is still 75.5MB. Free memory was 46.1MB in the beginning and 38.3MB 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 15:56:26,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6580af-f914-4ec2-9d72-d81afbde7966/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