./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2c_append_unequal.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_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/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_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2c_append_unequal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/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_12873bc9-5814-4952-9a1e-07b2949990e7/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 9aabbeff87ba819b44dc608a3105d0ba81b71cd88693ecf2e6bf3860a7863e64 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:06:19,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:06:19,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:06:19,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:06:19,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:06:19,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:06:19,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:06:19,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:06:19,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:06:19,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:06:19,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:06:19,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:06:19,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:06:19,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:06:19,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:06:19,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:06:19,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:06:19,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:06:19,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:06:19,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:06:19,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:06:19,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:06:19,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:06:19,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:06:19,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:06:19,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:06:19,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:06:19,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:06:19,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:06:19,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:06:19,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:06:19,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:06:19,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:06:19,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:06:19,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:06:19,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:06:19,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:06:19,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:06:19,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:06:19,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:06:19,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:06:19,428 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:06:19,473 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:06:19,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:06:19,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:06:19,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:06:19,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:06:19,476 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:06:19,476 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:06:19,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:06:19,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:06:19,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:06:19,484 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:06:19,485 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:06:19,485 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:06:19,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:06:19,485 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:06:19,486 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:06:19,486 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:06:19,486 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:06:19,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:06:19,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:06:19,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:06:19,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:06:19,487 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:06:19,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:06:19,488 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_12873bc9-5814-4952-9a1e-07b2949990e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9aabbeff87ba819b44dc608a3105d0ba81b71cd88693ecf2e6bf3860a7863e64 [2021-11-23 15:06:19,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:06:19,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:06:19,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:06:19,829 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:06:19,830 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:06:19,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/dll2c_append_unequal.i [2021-11-23 15:06:19,913 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/data/aae581fac/4cadefe3342147dba72f8531974865a8/FLAG75d6ed440 [2021-11-23 15:06:20,538 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:06:20,538 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/sv-benchmarks/c/list-simple/dll2c_append_unequal.i [2021-11-23 15:06:20,553 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/data/aae581fac/4cadefe3342147dba72f8531974865a8/FLAG75d6ed440 [2021-11-23 15:06:20,797 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/data/aae581fac/4cadefe3342147dba72f8531974865a8 [2021-11-23 15:06:20,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:06:20,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:06:20,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:06:20,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:06:20,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:06:20,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:06:20" (1/1) ... [2021-11-23 15:06:20,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7acf27f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:20, skipping insertion in model container [2021-11-23 15:06:20,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:06:20" (1/1) ... [2021-11-23 15:06:20,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:06:20,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:06:21,304 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_12873bc9-5814-4952-9a1e-07b2949990e7/sv-benchmarks/c/list-simple/dll2c_append_unequal.i[24672,24685] [2021-11-23 15:06:21,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:06:21,317 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:06:21,368 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_12873bc9-5814-4952-9a1e-07b2949990e7/sv-benchmarks/c/list-simple/dll2c_append_unequal.i[24672,24685] [2021-11-23 15:06:21,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:06:21,410 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:06:21,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:21 WrapperNode [2021-11-23 15:06:21,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:06:21,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:06:21,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:06:21,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:06:21,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:21" (1/1) ... [2021-11-23 15:06:21,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:21" (1/1) ... [2021-11-23 15:06:21,498 INFO L137 Inliner]: procedures = 127, calls = 49, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 180 [2021-11-23 15:06:21,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:06:21,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:06:21,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:06:21,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:06:21,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:21" (1/1) ... [2021-11-23 15:06:21,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:21" (1/1) ... [2021-11-23 15:06:21,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:21" (1/1) ... [2021-11-23 15:06:21,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:21" (1/1) ... [2021-11-23 15:06:21,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:21" (1/1) ... [2021-11-23 15:06:21,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:21" (1/1) ... [2021-11-23 15:06:21,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:21" (1/1) ... [2021-11-23 15:06:21,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:06:21,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:06:21,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:06:21,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:06:21,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:21" (1/1) ... [2021-11-23 15:06:21,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:06:21,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:06:21,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:06:21,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:06:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:06:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:06:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:06:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:06:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:06:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:06:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:06:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:06:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:06:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:06:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:06:21,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:06:21,904 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:06:21,906 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:06:21,950 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:06:21,955 INFO L158 Benchmark]: Toolchain (without parser) took 1152.12ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 74.2MB in the end (delta: 8.6MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2021-11-23 15:06:21,956 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 79.7MB. Free memory was 50.7MB in the beginning and 50.7MB in the end (delta: 25.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:06:21,957 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.19ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 86.8MB in the end (delta: -4.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:06:21,958 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.34ms. Allocated memory is still 117.4MB. Free memory was 86.8MB in the beginning and 84.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:06:21,959 INFO L158 Benchmark]: Boogie Preprocessor took 73.58ms. Allocated memory is still 117.4MB. Free memory was 84.2MB in the beginning and 82.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:06:21,961 INFO L158 Benchmark]: RCFGBuilder took 378.93ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 74.2MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:06:21,978 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 79.7MB. Free memory was 50.7MB in the beginning and 50.7MB in the end (delta: 25.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.19ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 86.8MB in the end (delta: -4.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.34ms. Allocated memory is still 117.4MB. Free memory was 86.8MB in the beginning and 84.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.58ms. Allocated memory is still 117.4MB. Free memory was 84.2MB in the beginning and 82.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 378.93ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 74.2MB 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 15:06:22,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/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_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/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_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2c_append_unequal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/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_12873bc9-5814-4952-9a1e-07b2949990e7/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 9aabbeff87ba819b44dc608a3105d0ba81b71cd88693ecf2e6bf3860a7863e64 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:06:24,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:06:24,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:06:25,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:06:25,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:06:25,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:06:25,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:06:25,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:06:25,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:06:25,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:06:25,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:06:25,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:06:25,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:06:25,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:06:25,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:06:25,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:06:25,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:06:25,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:06:25,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:06:25,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:06:25,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:06:25,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:06:25,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:06:25,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:06:25,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:06:25,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:06:25,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:06:25,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:06:25,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:06:25,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:06:25,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:06:25,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:06:25,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:06:25,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:06:25,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:06:25,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:06:25,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:06:25,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:06:25,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:06:25,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:06:25,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:06:25,146 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2021-11-23 15:06:25,192 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:06:25,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:06:25,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:06:25,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:06:25,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:06:25,196 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:06:25,196 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:06:25,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:06:25,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:06:25,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:06:25,198 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:06:25,198 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:06:25,199 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:06:25,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:06:25,199 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:06:25,200 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:06:25,200 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:06:25,200 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:06:25,200 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:06:25,201 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:06:25,201 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:06:25,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:06:25,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:06:25,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:06:25,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:06:25,203 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:06:25,203 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:06:25,203 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:06:25,203 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:06:25,204 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_12873bc9-5814-4952-9a1e-07b2949990e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9aabbeff87ba819b44dc608a3105d0ba81b71cd88693ecf2e6bf3860a7863e64 [2021-11-23 15:06:25,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:06:25,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:06:25,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:06:25,720 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:06:25,721 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:06:25,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-simple/dll2c_append_unequal.i [2021-11-23 15:06:25,819 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/data/9e5dcaadd/637d708d3b894e7981b6c42cc2d5fd98/FLAG89dbfe6b4 [2021-11-23 15:06:26,573 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:06:26,574 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/sv-benchmarks/c/list-simple/dll2c_append_unequal.i [2021-11-23 15:06:26,608 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/data/9e5dcaadd/637d708d3b894e7981b6c42cc2d5fd98/FLAG89dbfe6b4 [2021-11-23 15:06:26,814 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/data/9e5dcaadd/637d708d3b894e7981b6c42cc2d5fd98 [2021-11-23 15:06:26,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:06:26,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:06:26,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:06:26,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:06:26,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:06:26,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:06:26" (1/1) ... [2021-11-23 15:06:26,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7322e96b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:26, skipping insertion in model container [2021-11-23 15:06:26,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:06:26" (1/1) ... [2021-11-23 15:06:26,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:06:26,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:06:27,426 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_12873bc9-5814-4952-9a1e-07b2949990e7/sv-benchmarks/c/list-simple/dll2c_append_unequal.i[24672,24685] [2021-11-23 15:06:27,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:06:27,456 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:06:27,532 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_12873bc9-5814-4952-9a1e-07b2949990e7/sv-benchmarks/c/list-simple/dll2c_append_unequal.i[24672,24685] [2021-11-23 15:06:27,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:06:27,585 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:06:27,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:27 WrapperNode [2021-11-23 15:06:27,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:06:27,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:06:27,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:06:27,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:06:27,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:27" (1/1) ... [2021-11-23 15:06:27,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:27" (1/1) ... [2021-11-23 15:06:27,654 INFO L137 Inliner]: procedures = 130, calls = 49, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 181 [2021-11-23 15:06:27,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:06:27,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:06:27,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:06:27,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:06:27,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:27" (1/1) ... [2021-11-23 15:06:27,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:27" (1/1) ... [2021-11-23 15:06:27,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:27" (1/1) ... [2021-11-23 15:06:27,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:27" (1/1) ... [2021-11-23 15:06:27,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:27" (1/1) ... [2021-11-23 15:06:27,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:27" (1/1) ... [2021-11-23 15:06:27,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:27" (1/1) ... [2021-11-23 15:06:27,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:06:27,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:06:27,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:06:27,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:06:27,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:27" (1/1) ... [2021-11-23 15:06:27,728 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:06:27,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:06:27,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:06:27,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:06:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:06:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:06:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:06:27,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:06:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:06:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:06:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:06:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:06:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:06:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:06:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:06:27,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:06:27,954 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:06:27,991 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:06:28,058 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:06:28,063 INFO L158 Benchmark]: Toolchain (without parser) took 1242.05ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 48.2MB in the beginning and 70.6MB in the end (delta: -22.5MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2021-11-23 15:06:28,064 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 67.1MB. Free memory was 48.9MB in the beginning and 48.8MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:06:28,065 INFO L158 Benchmark]: CACSL2BoogieTranslator took 761.97ms. Allocated memory is still 67.1MB. Free memory was 48.0MB in the beginning and 42.5MB in the end (delta: 5.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:06:28,075 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.15ms. Allocated memory is still 67.1MB. Free memory was 42.5MB in the beginning and 39.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:06:28,076 INFO L158 Benchmark]: Boogie Preprocessor took 62.58ms. Allocated memory is still 67.1MB. Free memory was 39.9MB in the beginning and 37.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:06:28,077 INFO L158 Benchmark]: RCFGBuilder took 341.87ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 37.6MB in the beginning and 70.6MB in the end (delta: -33.0MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2021-11-23 15:06:28,082 INFO L339 ainManager$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 67.1MB. Free memory was 48.9MB in the beginning and 48.8MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 761.97ms. Allocated memory is still 67.1MB. Free memory was 48.0MB in the beginning and 42.5MB in the end (delta: 5.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.15ms. Allocated memory is still 67.1MB. Free memory was 42.5MB in the beginning and 39.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.58ms. Allocated memory is still 67.1MB. Free memory was 39.9MB in the beginning and 37.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 341.87ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 37.6MB in the beginning and 70.6MB in the end (delta: -33.0MB). Peak memory consumption was 13.2MB. 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 15:06:28,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12873bc9-5814-4952-9a1e-07b2949990e7/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