./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-properties/alternating_list-1.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_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/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_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/alternating_list-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/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_467ee520-a5d7-4ca0-852f-be7d8e039c1a/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 941f3dd0e4566f414ae914eed10af26405f8e9f2f3d427c146090b07336d2fc2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:54:59,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:54:59,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:54:59,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:54:59,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:54:59,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:54:59,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:54:59,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:54:59,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:54:59,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:54:59,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:54:59,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:54:59,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:54:59,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:54:59,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:54:59,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:54:59,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:54:59,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:54:59,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:54:59,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:54:59,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:54:59,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:54:59,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:54:59,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:54:59,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:54:59,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:54:59,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:54:59,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:54:59,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:54:59,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:54:59,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:54:59,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:54:59,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:54:59,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:54:59,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:54:59,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:54:59,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:54:59,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:54:59,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:54:59,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:54:59,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:54:59,616 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:54:59,658 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:54:59,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:54:59,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:54:59,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:54:59,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:54:59,661 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:54:59,662 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:54:59,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:54:59,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:54:59,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:54:59,670 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:54:59,670 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:54:59,670 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:54:59,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:54:59,671 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:54:59,671 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:54:59,671 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:54:59,671 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:54:59,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:54:59,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:54:59,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:54:59,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:54:59,672 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:54:59,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:54:59,673 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_467ee520-a5d7-4ca0-852f-be7d8e039c1a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 941f3dd0e4566f414ae914eed10af26405f8e9f2f3d427c146090b07336d2fc2 [2021-11-23 15:54:59,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:55:00,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:55:00,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:55:00,010 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:55:00,011 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:55:00,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-properties/alternating_list-1.i [2021-11-23 15:55:00,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/data/f01496a39/84896ad4d2cc44c4b7b3323a69e0230e/FLAG2b1c9f998 [2021-11-23 15:55:00,638 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:55:00,643 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/sv-benchmarks/c/list-properties/alternating_list-1.i [2021-11-23 15:55:00,671 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/data/f01496a39/84896ad4d2cc44c4b7b3323a69e0230e/FLAG2b1c9f998 [2021-11-23 15:55:01,088 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/data/f01496a39/84896ad4d2cc44c4b7b3323a69e0230e [2021-11-23 15:55:01,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:55:01,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:55:01,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:55:01,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:55:01,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:55:01,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:55:01" (1/1) ... [2021-11-23 15:55:01,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f71ee52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:01, skipping insertion in model container [2021-11-23 15:55:01,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:55:01" (1/1) ... [2021-11-23 15:55:01,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:55:01,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:55:01,468 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_467ee520-a5d7-4ca0-852f-be7d8e039c1a/sv-benchmarks/c/list-properties/alternating_list-1.i[23574,23587] [2021-11-23 15:55:01,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:55:01,488 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:55:01,553 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_467ee520-a5d7-4ca0-852f-be7d8e039c1a/sv-benchmarks/c/list-properties/alternating_list-1.i[23574,23587] [2021-11-23 15:55:01,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:55:01,604 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:55:01,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:01 WrapperNode [2021-11-23 15:55:01,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:55:01,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:55:01,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:55:01,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:55:01,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:01" (1/1) ... [2021-11-23 15:55:01,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:01" (1/1) ... [2021-11-23 15:55:01,656 INFO L137 Inliner]: procedures = 124, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 97 [2021-11-23 15:55:01,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:55:01,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:55:01,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:55:01,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:55:01,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:01" (1/1) ... [2021-11-23 15:55:01,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:01" (1/1) ... [2021-11-23 15:55:01,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:01" (1/1) ... [2021-11-23 15:55:01,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:01" (1/1) ... [2021-11-23 15:55:01,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:01" (1/1) ... [2021-11-23 15:55:01,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:01" (1/1) ... [2021-11-23 15:55:01,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:01" (1/1) ... [2021-11-23 15:55:01,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:55:01,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:55:01,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:55:01,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:55:01,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:01" (1/1) ... [2021-11-23 15:55:01,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:55:01,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:55:01,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:55:01,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:55:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:55:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:55:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:55:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:55:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:55:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:55:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:55:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:55:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:55:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:55:01,948 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:55:01,950 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:55:01,988 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:55:02,005 INFO L158 Benchmark]: Toolchain (without parser) took 911.74ms. Allocated memory is still 94.4MB. Free memory was 59.2MB in the beginning and 49.7MB in the end (delta: 9.5MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-11-23 15:55:02,005 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 94.4MB. Free memory was 47.7MB in the beginning and 47.6MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:55:02,006 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.60ms. Allocated memory is still 94.4MB. Free memory was 59.0MB in the beginning and 60.4MB in the end (delta: -1.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 15:55:02,007 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.26ms. Allocated memory is still 94.4MB. Free memory was 60.4MB in the beginning and 58.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:55:02,007 INFO L158 Benchmark]: Boogie Preprocessor took 54.43ms. Allocated memory is still 94.4MB. Free memory was 58.4MB in the beginning and 56.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:55:02,008 INFO L158 Benchmark]: RCFGBuilder took 290.31ms. Allocated memory is still 94.4MB. Free memory was 56.8MB in the beginning and 49.7MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 15:55:02,012 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 94.4MB. Free memory was 47.7MB in the beginning and 47.6MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 505.60ms. Allocated memory is still 94.4MB. Free memory was 59.0MB in the beginning and 60.4MB in the end (delta: -1.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.26ms. Allocated memory is still 94.4MB. Free memory was 60.4MB in the beginning and 58.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.43ms. Allocated memory is still 94.4MB. Free memory was 58.4MB in the beginning and 56.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 290.31ms. Allocated memory is still 94.4MB. Free memory was 56.8MB in the beginning and 49.7MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:55:02,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/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_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/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_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/alternating_list-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/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_467ee520-a5d7-4ca0-852f-be7d8e039c1a/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 941f3dd0e4566f414ae914eed10af26405f8e9f2f3d427c146090b07336d2fc2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:55:04,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:55:04,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:55:04,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:55:04,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:55:04,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:55:04,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:55:04,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:55:04,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:55:04,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:55:04,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:55:04,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:55:04,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:55:04,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:55:04,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:55:04,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:55:04,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:55:04,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:55:04,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:55:04,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:55:04,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:55:04,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:55:04,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:55:04,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:55:04,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:55:04,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:55:04,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:55:04,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:55:04,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:55:04,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:55:04,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:55:04,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:55:04,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:55:04,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:55:04,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:55:04,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:55:04,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:55:04,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:55:04,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:55:04,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:55:04,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:55:04,833 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2021-11-23 15:55:04,864 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:55:04,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:55:04,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:55:04,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:55:04,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:55:04,867 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:55:04,868 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:55:04,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:55:04,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:55:04,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:55:04,869 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:55:04,869 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:55:04,870 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:55:04,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:55:04,870 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:55:04,871 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:55:04,871 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:55:04,871 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:55:04,872 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:55:04,872 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:55:04,872 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:55:04,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:55:04,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:55:04,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:55:04,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:55:04,874 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:55:04,874 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:55:04,874 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:55:04,875 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:55:04,875 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_467ee520-a5d7-4ca0-852f-be7d8e039c1a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 941f3dd0e4566f414ae914eed10af26405f8e9f2f3d427c146090b07336d2fc2 [2021-11-23 15:55:05,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:55:05,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:55:05,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:55:05,321 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:55:05,324 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:55:05,326 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-properties/alternating_list-1.i [2021-11-23 15:55:05,418 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/data/65d258281/3b4e3f8a9cd14fe1973144b3ecb2f0c3/FLAGbdc21d8bf [2021-11-23 15:55:06,115 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:55:06,120 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/sv-benchmarks/c/list-properties/alternating_list-1.i [2021-11-23 15:55:06,141 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/data/65d258281/3b4e3f8a9cd14fe1973144b3ecb2f0c3/FLAGbdc21d8bf [2021-11-23 15:55:06,438 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/data/65d258281/3b4e3f8a9cd14fe1973144b3ecb2f0c3 [2021-11-23 15:55:06,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:55:06,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:55:06,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:55:06,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:55:06,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:55:06,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:55:06" (1/1) ... [2021-11-23 15:55:06,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c990d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:06, skipping insertion in model container [2021-11-23 15:55:06,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:55:06" (1/1) ... [2021-11-23 15:55:06,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:55:06,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:55:06,910 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_467ee520-a5d7-4ca0-852f-be7d8e039c1a/sv-benchmarks/c/list-properties/alternating_list-1.i[23574,23587] [2021-11-23 15:55:06,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:55:06,937 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:55:07,003 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_467ee520-a5d7-4ca0-852f-be7d8e039c1a/sv-benchmarks/c/list-properties/alternating_list-1.i[23574,23587] [2021-11-23 15:55:07,005 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:55:07,045 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:55:07,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:07 WrapperNode [2021-11-23 15:55:07,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:55:07,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:55:07,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:55:07,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:55:07,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:07" (1/1) ... [2021-11-23 15:55:07,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:07" (1/1) ... [2021-11-23 15:55:07,146 INFO L137 Inliner]: procedures = 127, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 97 [2021-11-23 15:55:07,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:55:07,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:55:07,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:55:07,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:55:07,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:07" (1/1) ... [2021-11-23 15:55:07,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:07" (1/1) ... [2021-11-23 15:55:07,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:07" (1/1) ... [2021-11-23 15:55:07,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:07" (1/1) ... [2021-11-23 15:55:07,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:07" (1/1) ... [2021-11-23 15:55:07,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:07" (1/1) ... [2021-11-23 15:55:07,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:07" (1/1) ... [2021-11-23 15:55:07,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:55:07,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:55:07,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:55:07,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:55:07,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:07" (1/1) ... [2021-11-23 15:55:07,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:55:07,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:55:07,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:55:07,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:55:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:55:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:55:07,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:55:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:55:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:55:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:55:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:55:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:55:07,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:55:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:55:07,447 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:55:07,449 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:55:07,488 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:55:07,492 INFO L158 Benchmark]: Toolchain (without parser) took 1047.90ms. Allocated memory is still 69.2MB. Free memory was 49.9MB in the beginning and 33.9MB in the end (delta: 16.0MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2021-11-23 15:55:07,492 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 69.2MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:55:07,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.96ms. Allocated memory is still 69.2MB. Free memory was 49.6MB in the beginning and 45.4MB in the end (delta: 4.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:55:07,494 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.59ms. Allocated memory is still 69.2MB. Free memory was 45.1MB in the beginning and 43.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:55:07,511 INFO L158 Benchmark]: Boogie Preprocessor took 67.77ms. Allocated memory is still 69.2MB. Free memory was 43.2MB in the beginning and 41.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:55:07,512 INFO L158 Benchmark]: RCFGBuilder took 272.72ms. Allocated memory is still 69.2MB. Free memory was 41.5MB in the beginning and 33.9MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 15:55:07,516 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 69.2MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 603.96ms. Allocated memory is still 69.2MB. Free memory was 49.6MB in the beginning and 45.4MB in the end (delta: 4.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.59ms. Allocated memory is still 69.2MB. Free memory was 45.1MB in the beginning and 43.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.77ms. Allocated memory is still 69.2MB. Free memory was 43.2MB in the beginning and 41.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 272.72ms. Allocated memory is still 69.2MB. Free memory was 41.5MB in the beginning and 33.9MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:55:07,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_467ee520-a5d7-4ca0-852f-be7d8e039c1a/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