./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0209a5ecd1f90a7dc207e0462366045d25daa538d59f8499c5199765a86166a3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:24:05,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:24:05,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:24:05,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:24:05,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:24:05,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:24:05,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:24:05,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:24:05,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:24:05,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:24:05,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:24:05,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:24:05,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:24:05,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:24:05,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:24:05,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:24:05,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:24:05,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:24:05,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:24:05,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:24:05,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:24:05,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:24:05,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:24:05,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:24:05,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:24:05,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:24:05,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:24:05,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:24:05,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:24:05,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:24:05,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:24:05,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:24:05,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:24:05,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:24:05,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:24:05,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:24:05,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:24:05,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:24:05,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:24:05,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:24:05,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:24:05,789 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:24:05,826 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:24:05,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:24:05,829 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:24:05,831 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:24:05,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:24:05,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:24:05,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:24:05,834 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:24:05,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:24:05,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:24:05,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:24:05,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:24:05,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:24:05,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:24:05,838 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:24:05,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:24:05,838 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:24:05,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:24:05,839 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:24:05,839 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:24:05,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:24:05,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:24:05,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:24:05,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:24:05,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:24:05,841 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:24:05,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:24:05,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:24:05,842 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_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0209a5ecd1f90a7dc207e0462366045d25daa538d59f8499c5199765a86166a3 [2021-11-22 23:24:06,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:24:06,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:24:06,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:24:06,232 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:24:06,233 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:24:06,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i [2021-11-22 23:24:06,333 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ/data/4768803a5/e20e8841cb1446a580d642e6dfe9aba7/FLAG3ee6665dd [2021-11-22 23:24:06,992 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:24:06,993 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i [2021-11-22 23:24:07,013 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ/data/4768803a5/e20e8841cb1446a580d642e6dfe9aba7/FLAG3ee6665dd [2021-11-22 23:24:07,277 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ/data/4768803a5/e20e8841cb1446a580d642e6dfe9aba7 [2021-11-22 23:24:07,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:24:07,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:24:07,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:24:07,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:24:07,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:24:07,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:24:07" (1/1) ... [2021-11-22 23:24:07,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51704b4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:07, skipping insertion in model container [2021-11-22 23:24:07,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:24:07" (1/1) ... [2021-11-22 23:24:07,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:24:07,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:24:07,732 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_a0be3ea5-69ec-47dc-893d-7b825aad0bac/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22575,22588] [2021-11-22 23:24:07,737 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_a0be3ea5-69ec-47dc-893d-7b825aad0bac/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22647,22660] [2021-11-22 23:24:07,739 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_a0be3ea5-69ec-47dc-893d-7b825aad0bac/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22815,22828] [2021-11-22 23:24:07,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:24:07,760 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:24:07,835 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_a0be3ea5-69ec-47dc-893d-7b825aad0bac/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22575,22588] [2021-11-22 23:24:07,836 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_a0be3ea5-69ec-47dc-893d-7b825aad0bac/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22647,22660] [2021-11-22 23:24:07,838 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_a0be3ea5-69ec-47dc-893d-7b825aad0bac/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i[22815,22828] [2021-11-22 23:24:07,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:24:07,888 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:24:07,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:07 WrapperNode [2021-11-22 23:24:07,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:24:07,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:24:07,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:24:07,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:24:07,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:07" (1/1) ... [2021-11-22 23:24:07,919 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:07" (1/1) ... [2021-11-22 23:24:07,957 INFO L137 Inliner]: procedures = 119, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 119 [2021-11-22 23:24:07,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:24:07,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:24:07,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:24:07,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:24:07,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:07" (1/1) ... [2021-11-22 23:24:07,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:07" (1/1) ... [2021-11-22 23:24:07,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:07" (1/1) ... [2021-11-22 23:24:07,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:07" (1/1) ... [2021-11-22 23:24:08,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:07" (1/1) ... [2021-11-22 23:24:08,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:07" (1/1) ... [2021-11-22 23:24:08,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:07" (1/1) ... [2021-11-22 23:24:08,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:24:08,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:24:08,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:24:08,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:24:08,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:24:07" (1/1) ... [2021-11-22 23:24:08,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:24:08,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:24:08,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:24:08,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:24:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 23:24:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:24:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 23:24:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:24:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 23:24:08,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 23:24:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:24:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:24:08,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:24:08,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:24:08,230 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:24:08,232 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:24:08,594 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:24:08,721 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:24:08,721 INFO L301 CfgBuilder]: Removed 9 assume(true) statements. [2021-11-22 23:24:08,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:24:08 BoogieIcfgContainer [2021-11-22 23:24:08,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:24:08,730 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:24:08,730 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:24:08,743 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:24:08,743 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:24:08" (1/1) ... [2021-11-22 23:24:08,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:24:08,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:08,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2021-11-22 23:24:08,834 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2021-11-22 23:24:08,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-22 23:24:08,836 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:08,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:08,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:24:09,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:09,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2021-11-22 23:24:09,189 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2021-11-22 23:24:09,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 23:24:09,190 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:09,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:09,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:24:09,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:09,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2021-11-22 23:24:09,605 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-11-22 23:24:09,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 23:24:09,606 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:09,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:09,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:24:10,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:10,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 27 states and 34 transitions. [2021-11-22 23:24:10,598 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2021-11-22 23:24:10,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 23:24:10,598 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:10,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:11,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:24:12,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:12,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 39 transitions. [2021-11-22 23:24:12,084 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2021-11-22 23:24:12,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 23:24:12,088 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:12,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:24:12,855 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:24:14,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:24:14,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2021-11-22 23:24:14,009 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2021-11-22 23:24:14,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 23:24:14,010 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:24:14,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:24:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:24:14,024 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:24:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:24:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:24:14,098 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:24:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:24:14,133 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2021-11-22 23:24:14,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.11 11:24:14 ImpRootNode [2021-11-22 23:24:14,165 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-22 23:24:14,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 23:24:14,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 23:24:14,166 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 23:24:14,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:24:08" (3/4) ... [2021-11-22 23:24:14,181 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 23:24:14,258 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-22 23:24:14,258 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 23:24:14,260 INFO L158 Benchmark]: Toolchain (without parser) took 6978.22ms. Allocated memory was 92.3MB in the beginning and 148.9MB in the end (delta: 56.6MB). Free memory was 51.8MB in the beginning and 116.4MB in the end (delta: -64.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:24:14,262 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 92.3MB. Free memory was 69.5MB in the beginning and 69.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:24:14,264 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.87ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 51.6MB in the beginning and 77.9MB in the end (delta: -26.3MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2021-11-22 23:24:14,267 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.74ms. Allocated memory is still 111.1MB. Free memory was 77.9MB in the beginning and 75.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:24:14,268 INFO L158 Benchmark]: Boogie Preprocessor took 67.37ms. Allocated memory is still 111.1MB. Free memory was 75.8MB in the beginning and 73.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:24:14,269 INFO L158 Benchmark]: RCFGBuilder took 697.30ms. Allocated memory is still 111.1MB. Free memory was 73.7MB in the beginning and 53.3MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-22 23:24:14,270 INFO L158 Benchmark]: CodeCheck took 5435.65ms. Allocated memory was 111.1MB in the beginning and 148.9MB in the end (delta: 37.7MB). Free memory was 53.3MB in the beginning and 118.5MB in the end (delta: -65.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:24:14,270 INFO L158 Benchmark]: Witness Printer took 92.76ms. Allocated memory is still 148.9MB. Free memory was 118.5MB in the beginning and 116.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:24:14,276 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 22 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 5.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 119 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 80 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 155 IncrementalHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 55 mSDtfsCounter, 155 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 355 GetRequests, 319 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 0/8 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1051]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1005] SLL* list = malloc(sizeof(SLL)); [L1006] list->next = ((void*)0) [L1007] list->prev = ((void*)0) [L1008] list->colour = BLACK [L1010] SLL* end = list; VAL [end={14022:0}, list={14022:0}] [L1013] COND FALSE !(__VERIFIER_nondet_int()) [L1036] end = ((void*)0) [L1037] end = list VAL [end={14022:0}, list={14022:0}] [L1040] COND FALSE !(!(((void*)0) != end)) VAL [end={14022:0}, list={14022:0}] [L1041] EXPR end->colour VAL [end={14022:0}, end->colour=1, list={14022:0}] [L1041] COND FALSE !(!(BLACK == end->colour)) [L1043] COND TRUE ((void*)0) != end [L1045] EXPR end->colour [L1045] COND FALSE !(RED == end->colour) [L1051] EXPR end->next VAL [end={14022:0}, end->next={29:26}, end->next={0:0}, end->next={28:27}, list={14022:0}] [L1051] COND TRUE !(end->next) [L1051] reach_error() VAL [end={14022:0}, end->next={29:26}, end->next={28:27}, list={14022:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 92.3MB. Free memory was 69.5MB in the beginning and 69.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.87ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 51.6MB in the beginning and 77.9MB in the end (delta: -26.3MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.74ms. Allocated memory is still 111.1MB. Free memory was 77.9MB in the beginning and 75.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.37ms. Allocated memory is still 111.1MB. Free memory was 75.8MB in the beginning and 73.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 697.30ms. Allocated memory is still 111.1MB. Free memory was 73.7MB in the beginning and 53.3MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 5435.65ms. Allocated memory was 111.1MB in the beginning and 148.9MB in the end (delta: 37.7MB). Free memory was 53.3MB in the beginning and 118.5MB in the end (delta: -65.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 92.76ms. Allocated memory is still 148.9MB. Free memory was 118.5MB in the beginning and 116.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-22 23:24:14,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0be3ea5-69ec-47dc-893d-7b825aad0bac/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE