./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fe6214-c718-453a-a02b-5f8d2350021f/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fe6214-c718-453a-a02b-5f8d2350021f/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fe6214-c718-453a-a02b-5f8d2350021f/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fe6214-c718-453a-a02b-5f8d2350021f/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fe6214-c718-453a-a02b-5f8d2350021f/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fe6214-c718-453a-a02b-5f8d2350021f/bin/ukojak-92XMlrwhuB --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 4fb6aa6206205a747f158782e93b3c9333c1a2cdc4e8dab70046fca960e31961 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:46:31,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:46:31,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:46:31,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:46:31,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:46:31,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:46:31,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:46:31,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:46:31,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:46:31,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:46:31,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:46:31,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:46:31,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:46:31,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:46:31,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:46:31,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:46:31,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:46:31,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:46:31,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:46:31,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:46:31,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:46:31,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:46:31,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:46:31,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:46:31,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:46:31,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:46:31,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:46:31,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:46:31,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:46:31,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:46:31,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:46:31,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:46:31,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:46:31,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:46:31,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:46:31,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:46:31,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:46:31,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:46:31,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:46:31,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:46:31,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:46:31,843 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fe6214-c718-453a-a02b-5f8d2350021f/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:46:31,887 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:46:31,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:46:31,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:46:31,889 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:46:31,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:46:31,890 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:46:31,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:46:31,891 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:46:31,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:46:31,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:46:31,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:46:31,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:46:31,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:46:31,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:46:31,893 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:46:31,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:46:31,894 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:46:31,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:46:31,894 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:46:31,894 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:46:31,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:46:31,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:46:31,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:46:31,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:46:31,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:46:31,896 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:46:31,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:46:31,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:46:31,897 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_84fe6214-c718-453a-a02b-5f8d2350021f/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fe6214-c718-453a-a02b-5f8d2350021f/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fb6aa6206205a747f158782e93b3c9333c1a2cdc4e8dab70046fca960e31961 [2022-10-17 16:46:32,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:46:32,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:46:32,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:46:32,278 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:46:32,279 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:46:32,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fe6214-c718-453a-a02b-5f8d2350021f/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-2.i [2022-10-17 16:46:32,358 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fe6214-c718-453a-a02b-5f8d2350021f/bin/ukojak-92XMlrwhuB/data/23a8c1298/ac5baa39af774ff38c7d0d8c8da9d46a/FLAG8f6cbc317 [2022-10-17 16:46:32,908 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:46:32,909 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fe6214-c718-453a-a02b-5f8d2350021f/sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-2.i [2022-10-17 16:46:32,927 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fe6214-c718-453a-a02b-5f8d2350021f/bin/ukojak-92XMlrwhuB/data/23a8c1298/ac5baa39af774ff38c7d0d8c8da9d46a/FLAG8f6cbc317 [2022-10-17 16:46:33,191 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fe6214-c718-453a-a02b-5f8d2350021f/bin/ukojak-92XMlrwhuB/data/23a8c1298/ac5baa39af774ff38c7d0d8c8da9d46a [2022-10-17 16:46:33,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:46:33,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:46:33,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:46:33,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:46:33,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:46:33,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:46:33" (1/1) ... [2022-10-17 16:46:33,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e98284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:33, skipping insertion in model container [2022-10-17 16:46:33,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:46:33" (1/1) ... [2022-10-17 16:46:33,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:46:33,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:46:33,616 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_84fe6214-c718-453a-a02b-5f8d2350021f/sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-2.i[24211,24224] [2022-10-17 16:46:33,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:46:33,641 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:46:33,708 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_84fe6214-c718-453a-a02b-5f8d2350021f/sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-2.i[24211,24224] [2022-10-17 16:46:33,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:46:33,744 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:46:33,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:33 WrapperNode [2022-10-17 16:46:33,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:46:33,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:46:33,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:46:33,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:46:33,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:33" (1/1) ... [2022-10-17 16:46:33,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:33" (1/1) ... [2022-10-17 16:46:33,823 INFO L138 Inliner]: procedures = 122, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 92 [2022-10-17 16:46:33,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:46:33,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:46:33,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:46:33,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:46:33,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:33" (1/1) ... [2022-10-17 16:46:33,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:33" (1/1) ... [2022-10-17 16:46:33,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:33" (1/1) ... [2022-10-17 16:46:33,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:33" (1/1) ... [2022-10-17 16:46:33,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:33" (1/1) ... [2022-10-17 16:46:33,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:33" (1/1) ... [2022-10-17 16:46:33,870 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:33" (1/1) ... [2022-10-17 16:46:33,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:33" (1/1) ... [2022-10-17 16:46:33,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:46:33,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:46:33,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:46:33,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:46:33,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:33" (1/1) ... [2022-10-17 16:46:33,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:46:33,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fe6214-c718-453a-a02b-5f8d2350021f/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:46:33,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fe6214-c718-453a-a02b-5f8d2350021f/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:46:33,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fe6214-c718-453a-a02b-5f8d2350021f/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:46:33,971 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-10-17 16:46:33,971 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-10-17 16:46:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:46:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:46:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:46:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:46:33,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 16:46:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 16:46:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:46:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:46:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:46:33,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:46:34,110 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:46:34,123 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:46:34,176 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-10-17 16:46:34,340 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:46:34,409 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:46:34,410 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-17 16:46:34,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:34 BoogieIcfgContainer [2022-10-17 16:46:34,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:46:34,413 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:46:34,413 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:46:34,424 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:46:34,425 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:34" (1/1) ... [2022-10-17 16:46:34,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:46:34,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:34,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2022-10-17 16:46:34,507 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2022-10-17 16:46:34,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:46:34,508 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:34,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:34,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:34,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:34,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2022-10-17 16:46:34,941 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-10-17 16:46:34,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:46:34,942 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:34,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:35,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:35,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:35,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 34 transitions. [2022-10-17 16:46:35,227 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2022-10-17 16:46:35,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:46:35,227 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:35,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:35,434 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:35,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:35,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 29 states and 38 transitions. [2022-10-17 16:46:35,535 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2022-10-17 16:46:35,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-17 16:46:35,536 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:35,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:35,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:35,841 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:35,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:35,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 32 states and 41 transitions. [2022-10-17 16:46:35,958 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2022-10-17 16:46:35,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 16:46:35,958 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:35,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:36,958 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 16:46:38,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:38,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 34 states and 43 transitions. [2022-10-17 16:46:38,262 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2022-10-17 16:46:38,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-17 16:46:38,263 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:38,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:40,775 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:46:44,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:44,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 37 states and 48 transitions. [2022-10-17 16:46:44,683 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2022-10-17 16:46:44,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:46:44,684 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:44,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:44,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:46,329 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 16:46:48,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:48,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 40 states and 54 transitions. [2022-10-17 16:46:48,337 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2022-10-17 16:46:48,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 16:46:48,340 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:48,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:52,701 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:47:02,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:47:02,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 59 states and 93 transitions. [2022-10-17 16:47:02,422 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 93 transitions. [2022-10-17 16:47:02,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-17 16:47:02,424 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:47:02,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:47:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat