./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-01-2.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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/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 14067621d9a8f66625f13d1d9faf9b421dec38bd60b4ac0ad734bd36e2df123a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:16:25,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:16:25,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:16:25,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:16:25,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:16:25,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:16:25,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:16:25,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:16:25,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:16:25,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:16:25,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:16:25,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:16:25,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:16:25,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:16:25,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:16:25,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:16:25,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:16:25,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:16:25,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:16:25,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:16:25,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:16:25,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:16:25,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:16:25,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:16:25,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:16:25,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:16:25,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:16:25,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:16:25,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:16:25,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:16:25,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:16:25,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:16:25,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:16:25,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:16:25,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:16:25,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:16:25,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:16:25,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:16:25,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:16:25,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:16:25,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:16:25,759 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:16:25,819 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:16:25,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:16:25,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:16:25,822 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:16:25,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:16:25,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:16:25,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:16:25,824 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:16:25,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:16:25,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:16:25,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:16:25,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:16:25,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:16:25,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:16:25,835 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:16:25,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:16:25,835 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:16:25,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:16:25,836 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:16:25,836 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:16:25,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:16:25,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:16:25,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:16:25,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:16:25,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:16:25,838 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:16:25,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:16:25,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:16:25,839 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14067621d9a8f66625f13d1d9faf9b421dec38bd60b4ac0ad734bd36e2df123a [2021-11-23 01:16:26,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:16:26,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:16:26,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:16:26,203 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:16:26,205 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:16:26,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/forester-heap/sll-01-2.i [2021-11-23 01:16:26,333 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/bin/ukojak-LBtLqBUTdQ/data/abd5455f6/4688495c05694051b3064442815ebe59/FLAGc9ecd586f [2021-11-23 01:16:27,002 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:16:27,003 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i [2021-11-23 01:16:27,023 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/bin/ukojak-LBtLqBUTdQ/data/abd5455f6/4688495c05694051b3064442815ebe59/FLAGc9ecd586f [2021-11-23 01:16:27,248 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/bin/ukojak-LBtLqBUTdQ/data/abd5455f6/4688495c05694051b3064442815ebe59 [2021-11-23 01:16:27,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:16:27,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:16:27,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:16:27,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:16:27,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:16:27,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:16:27" (1/1) ... [2021-11-23 01:16:27,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17d8fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:27, skipping insertion in model container [2021-11-23 01:16:27,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:16:27" (1/1) ... [2021-11-23 01:16:27,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:16:27,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:16:27,718 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[22034,22047] [2021-11-23 01:16:27,740 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[22307,22320] [2021-11-23 01:16:27,744 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[22516,22529] [2021-11-23 01:16:27,747 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[22586,22599] [2021-11-23 01:16:27,751 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[22853,22866] [2021-11-23 01:16:27,755 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[22961,22974] [2021-11-23 01:16:27,760 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[23192,23205] [2021-11-23 01:16:27,764 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[23272,23285] [2021-11-23 01:16:27,767 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[23351,23364] [2021-11-23 01:16:27,769 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[23484,23497] [2021-11-23 01:16:27,773 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[23662,23675] [2021-11-23 01:16:27,776 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[23740,23753] [2021-11-23 01:16:27,777 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[23817,23830] [2021-11-23 01:16:27,792 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:16:27,803 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:16:27,856 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[22034,22047] [2021-11-23 01:16:27,859 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[22307,22320] [2021-11-23 01:16:27,861 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[22516,22529] [2021-11-23 01:16:27,866 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[22586,22599] [2021-11-23 01:16:27,869 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[22853,22866] [2021-11-23 01:16:27,881 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[22961,22974] [2021-11-23 01:16:27,884 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[23192,23205] [2021-11-23 01:16:27,885 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[23272,23285] [2021-11-23 01:16:27,886 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[23351,23364] [2021-11-23 01:16:27,888 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[23484,23497] [2021-11-23 01:16:27,890 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[23662,23675] [2021-11-23 01:16:27,891 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[23740,23753] [2021-11-23 01:16:27,893 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_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/sv-benchmarks/c/forester-heap/sll-01-2.i[23817,23830] [2021-11-23 01:16:27,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:16:27,943 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:16:27,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:27 WrapperNode [2021-11-23 01:16:27,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:16:27,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:16:27,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:16:27,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:16:27,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:27" (1/1) ... [2021-11-23 01:16:28,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:27" (1/1) ... [2021-11-23 01:16:28,056 INFO L137 Inliner]: procedures = 119, calls = 42, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 225 [2021-11-23 01:16:28,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:16:28,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:16:28,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:16:28,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:16:28,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:27" (1/1) ... [2021-11-23 01:16:28,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:27" (1/1) ... [2021-11-23 01:16:28,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:27" (1/1) ... [2021-11-23 01:16:28,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:27" (1/1) ... [2021-11-23 01:16:28,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:27" (1/1) ... [2021-11-23 01:16:28,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:27" (1/1) ... [2021-11-23 01:16:28,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:27" (1/1) ... [2021-11-23 01:16:28,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:16:28,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:16:28,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:16:28,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:16:28,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:27" (1/1) ... [2021-11-23 01:16:28,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:16:28,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:16:28,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:16:28,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:16:28,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:16:28,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:16:28,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:16:28,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:16:28,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:16:28,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:16:28,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:16:28,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:16:28,378 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:16:28,380 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:16:28,885 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:16:28,958 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:16:28,959 INFO L301 CfgBuilder]: Removed 30 assume(true) statements. [2021-11-23 01:16:28,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:16:28 BoogieIcfgContainer [2021-11-23 01:16:28,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:16:28,963 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:16:28,964 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:16:28,976 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:16:28,976 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:16:28" (1/1) ... [2021-11-23 01:16:28,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:16:29,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:29,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 74 states and 118 transitions. [2021-11-23 01:16:29,054 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 118 transitions. [2021-11-23 01:16:29,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 01:16:29,057 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:29,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:29,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:29,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:29,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 72 states and 113 transitions. [2021-11-23 01:16:29,322 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 113 transitions. [2021-11-23 01:16:29,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:16:29,323 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:29,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:29,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:29,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:29,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 70 states and 108 transitions. [2021-11-23 01:16:29,510 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 108 transitions. [2021-11-23 01:16:29,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 01:16:29,511 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:29,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:29,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:29,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:29,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 70 states and 103 transitions. [2021-11-23 01:16:29,631 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2021-11-23 01:16:29,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 01:16:29,632 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:29,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:29,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:29,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:29,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 68 states and 98 transitions. [2021-11-23 01:16:29,754 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 98 transitions. [2021-11-23 01:16:29,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:16:29,755 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:29,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:29,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:29,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:29,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 72 states and 104 transitions. [2021-11-23 01:16:29,965 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 104 transitions. [2021-11-23 01:16:29,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 01:16:29,966 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:29,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:30,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:30,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:30,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 70 states and 99 transitions. [2021-11-23 01:16:30,020 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 99 transitions. [2021-11-23 01:16:30,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:16:30,022 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:30,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:30,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:30,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:30,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 72 states and 100 transitions. [2021-11-23 01:16:30,106 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2021-11-23 01:16:30,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:16:30,107 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:30,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:30,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:30,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:30,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 70 states and 95 transitions. [2021-11-23 01:16:30,198 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 95 transitions. [2021-11-23 01:16:30,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 01:16:30,200 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:30,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:30,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:30,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:30,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 76 states and 101 transitions. [2021-11-23 01:16:30,653 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 101 transitions. [2021-11-23 01:16:30,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 01:16:30,656 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:30,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:30,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:30,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:30,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 74 states and 97 transitions. [2021-11-23 01:16:30,764 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 97 transitions. [2021-11-23 01:16:30,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:16:30,765 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:30,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:31,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:33,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:33,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 85 states and 112 transitions. [2021-11-23 01:16:33,798 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 112 transitions. [2021-11-23 01:16:33,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:16:33,799 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:33,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:33,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:16:33,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:33,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 83 states and 110 transitions. [2021-11-23 01:16:33,958 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 110 transitions. [2021-11-23 01:16:33,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:16:33,959 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:33,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:34,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:38,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:38,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 97 states and 128 transitions. [2021-11-23 01:16:38,269 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 128 transitions. [2021-11-23 01:16:38,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:16:38,271 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:38,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:38,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:16:38,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:38,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 90 states and 119 transitions. [2021-11-23 01:16:38,845 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 119 transitions. [2021-11-23 01:16:38,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 01:16:38,847 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:38,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:39,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:42,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:42,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 101 states and 137 transitions. [2021-11-23 01:16:42,819 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 137 transitions. [2021-11-23 01:16:42,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 01:16:42,820 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:42,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:42,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:43,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:47,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:47,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 110 states and 151 transitions. [2021-11-23 01:16:47,218 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 151 transitions. [2021-11-23 01:16:47,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:16:47,220 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:47,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:47,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:49,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:49,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 121 states and 168 transitions. [2021-11-23 01:16:49,702 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 168 transitions. [2021-11-23 01:16:49,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 01:16:49,703 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:49,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:16:50,149 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:16:52,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:16:52,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 126 states and 179 transitions. [2021-11-23 01:16:52,428 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 179 transitions. [2021-11-23 01:16:52,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 01:16:52,429 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:16:52,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:16:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:16:52,502 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:16:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:16:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:16:52,682 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:16:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:16:52,805 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 19 iterations. [2021-11-23 01:16:52,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:16:52 ImpRootNode [2021-11-23 01:16:52,941 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:16:52,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:16:52,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:16:52,943 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:16:52,943 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:16:28" (3/4) ... [2021-11-23 01:16:52,946 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:16:53,117 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:16:53,117 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:16:53,119 INFO L158 Benchmark]: Toolchain (without parser) took 25865.45ms. Allocated memory was 92.3MB in the beginning and 186.6MB in the end (delta: 94.4MB). Free memory was 57.4MB in the beginning and 56.7MB in the end (delta: 687.5kB). Peak memory consumption was 93.4MB. Max. memory is 16.1GB. [2021-11-23 01:16:53,119 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 92.3MB. Free memory was 47.7MB in the beginning and 47.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:16:53,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 689.89ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 57.2MB in the beginning and 94.2MB in the end (delta: -36.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:16:53,121 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.98ms. Allocated memory is still 127.9MB. Free memory was 94.2MB in the beginning and 92.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:16:53,122 INFO L158 Benchmark]: Boogie Preprocessor took 83.37ms. Allocated memory is still 127.9MB. Free memory was 92.1MB in the beginning and 90.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:16:53,138 INFO L158 Benchmark]: RCFGBuilder took 810.45ms. Allocated memory is still 127.9MB. Free memory was 90.0MB in the beginning and 66.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-23 01:16:53,139 INFO L158 Benchmark]: CodeCheck took 23977.94ms. Allocated memory was 127.9MB in the beginning and 186.6MB in the end (delta: 58.7MB). Free memory was 66.2MB in the beginning and 59.9MB in the end (delta: 6.3MB). Peak memory consumption was 66.8MB. Max. memory is 16.1GB. [2021-11-23 01:16:53,140 INFO L158 Benchmark]: Witness Printer took 175.62ms. Allocated memory is still 186.6MB. Free memory was 59.9MB in the beginning and 56.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:16:53,146 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, 74 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 23.8s, OverallIterations: 19, 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, 2921 SdHoareTripleChecker+Valid, 6.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1101 mSDsluCounter, 1545 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 957 mSDsCounter, 742 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2866 IncrementalHoareTripleChecker+Invalid, 3608 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 742 mSolverCounterUnsat, 630 mSDtfsCounter, 2866 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2455 GetRequests, 2207 SyntacticMatches, 10 SemanticMatches, 238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21413 ImplicationChecksByTransitivity, 20.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 357 NumberOfCodeBlocks, 357 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 309 ConstructedInterpolants, 0 QuantifiedInterpolants, 2714 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 14 PerfectInterpolantSequences, 5/10 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: 1036]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1002] SLL* list = malloc(sizeof(SLL)); [L1003] list->next = ((void*)0) VAL [list={21259:0}] [L1004] COND FALSE !(!(list != ((void*)0))) VAL [list={21259:0}] [L1004] COND FALSE !(__VERIFIER_nondet_int()) [L1004] list->inner = malloc(sizeof(SLL)) [L1004] EXPR list->inner [L1004] list->inner->next = ((void*)0) [L1004] EXPR list->inner [L1004] list->inner->inner = ((void*)0) [L1004] EXPR list->inner [L1004] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) VAL [list={21259:0}, list->inner={21260:0}, list->inner={84:83}, list->inner={0:0}, list->inner={0:0}, list->inner != ((void*)0) || list->inner == ((void*)0)=1, malloc(sizeof(SLL))={0:0}] [L1004] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L1006] SLL* end = list; VAL [end={21259:0}, list={21259:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] [L1009] COND FALSE !(__VERIFIER_nondet_int()) [L1019] end = ((void*)0) [L1020] end = list VAL [end={21259:0}, list={21259:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] [L1023] COND FALSE !(!(((void*)0) != end)) VAL [end={21259:0}, list={21259:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] [L1025] COND TRUE ((void*)0) != end [L1027] int len = 0; [L1028] EXPR end->inner [L1028] SLL* inner = end->inner; [L1029] COND TRUE ((void*)0) != inner [L1031] COND TRUE len == 0 [L1032] len = 1 VAL [end={21259:0}, inner={21260:0}, len=1, list={21259:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] [L1035] COND FALSE !(!(((void*)0) != inner)) VAL [end={21259:0}, inner={21260:0}, len=1, list={21259:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] [L1036] EXPR inner->inner VAL [end={21259:0}, inner={21260:0}, inner->inner={0:0}, len=1, list={21259:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] [L1036] COND FALSE !(!(((void*)0) == inner->inner)) [L1037] EXPR inner->next VAL [end={21259:0}, inner={21260:0}, inner->next={0:0}, len=1, list={21259:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] [L1037] COND FALSE !(!(((void*)0) == inner->next)) [L1038] EXPR inner->inner [L1038] inner = inner->inner [L1039] COND TRUE len == 1 [L1040] EXPR inner->inner [L1040] inner = inner->inner [L1029] COND TRUE ((void*)0) != inner [L1031] COND FALSE !(len == 0) [L1034] len = 2 VAL [end={21259:0}, inner={21260:-5}, inner->inner={0:0}, len=2, list={21259:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] [L1035] COND FALSE !(!(((void*)0) != inner)) VAL [end={21259:0}, inner={21260:-5}, inner->inner={0:0}, len=2, list={21259:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] [L1036] EXPR inner->inner VAL [end={21259:0}, inner={21260:-5}, inner->inner={32:19}, inner->inner={0:0}, len=2, list={21259:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] [L1036] COND TRUE !(((void*)0) == inner->inner) [L1036] reach_error() VAL [end={21259:0}, inner={21260:-5}, inner->inner={0:0}, len=2, list={21259:0}, list->inner={0:0}, list->inner={0:0}, malloc(sizeof(SLL))={0:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 92.3MB. Free memory was 47.7MB in the beginning and 47.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 689.89ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 57.2MB in the beginning and 94.2MB in the end (delta: -36.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.98ms. Allocated memory is still 127.9MB. Free memory was 94.2MB in the beginning and 92.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.37ms. Allocated memory is still 127.9MB. Free memory was 92.1MB in the beginning and 90.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 810.45ms. Allocated memory is still 127.9MB. Free memory was 90.0MB in the beginning and 66.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * CodeCheck took 23977.94ms. Allocated memory was 127.9MB in the beginning and 186.6MB in the end (delta: 58.7MB). Free memory was 66.2MB in the beginning and 59.9MB in the end (delta: 6.3MB). Peak memory consumption was 66.8MB. Max. memory is 16.1GB. * Witness Printer took 175.62ms. Allocated memory is still 186.6MB. Free memory was 59.9MB in the beginning and 56.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 01:16:53,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2e36038-9c81-436d-917a-bdf7bdc9a4fe/bin/ukojak-LBtLqBUTdQ/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE