./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-dietlibc/strdup.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/strdup.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/bin/ukojak-pZX7IvK2PQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f841d4506b3d54a4be8e374f288503808db05c122988e690b43155c57f381496 --- 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-6b4ec56 [2022-11-20 17:46:54,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:46:54,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:46:54,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:46:54,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:46:54,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:46:54,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:46:54,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:46:54,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:46:54,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:46:54,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:46:54,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:46:54,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:46:54,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:46:54,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:46:54,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:46:54,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:46:54,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:46:54,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:46:54,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:46:54,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:46:54,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:46:54,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:46:54,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:46:54,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:46:54,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:46:54,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:46:54,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:46:54,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:46:54,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:46:54,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:46:54,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:46:54,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:46:54,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:46:54,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:46:54,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:46:54,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:46:54,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:46:54,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:46:54,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:46:54,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:46:54,719 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 17:46:54,751 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:46:54,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:46:54,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:46:54,753 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:46:54,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:46:54,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:46:54,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:46:54,755 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:46:54,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:46:54,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:46:54,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:46:54,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:46:54,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:46:54,757 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:46:54,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:46:54,757 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:46:54,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:46:54,758 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:46:54,758 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:46:54,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:46:54,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:46:54,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:46:54,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:46:54,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:46:54,760 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:46:54,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:46:54,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:46:54,760 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_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f841d4506b3d54a4be8e374f288503808db05c122988e690b43155c57f381496 [2022-11-20 17:46:55,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:46:55,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:46:55,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:46:55,081 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:46:55,082 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:46:55,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-dietlibc/strdup.i [2022-11-20 17:46:58,098 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:46:58,337 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:46:58,338 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/sv-benchmarks/c/termination-dietlibc/strdup.i [2022-11-20 17:46:58,349 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/bin/ukojak-pZX7IvK2PQ/data/65a02c2a2/f537308aea9049a397706cf4613c2313/FLAG080e70b8f [2022-11-20 17:46:58,363 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/bin/ukojak-pZX7IvK2PQ/data/65a02c2a2/f537308aea9049a397706cf4613c2313 [2022-11-20 17:46:58,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:46:58,367 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:46:58,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:46:58,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:46:58,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:46:58,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:46:58" (1/1) ... [2022-11-20 17:46:58,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e010606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:58, skipping insertion in model container [2022-11-20 17:46:58,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:46:58" (1/1) ... [2022-11-20 17:46:58,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:46:58,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:46:58,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:46:58,750 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:46:58,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:46:58,850 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:46:58,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:58 WrapperNode [2022-11-20 17:46:58,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:46:58,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:46:58,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:46:58,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:46:58,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:58" (1/1) ... [2022-11-20 17:46:58,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:58" (1/1) ... [2022-11-20 17:46:58,906 INFO L138 Inliner]: procedures = 116, calls = 13, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 86 [2022-11-20 17:46:58,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:46:58,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:46:58,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:46:58,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:46:58,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:58" (1/1) ... [2022-11-20 17:46:58,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:58" (1/1) ... [2022-11-20 17:46:58,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:58" (1/1) ... [2022-11-20 17:46:58,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:58" (1/1) ... [2022-11-20 17:46:58,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:58" (1/1) ... [2022-11-20 17:46:58,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:58" (1/1) ... [2022-11-20 17:46:58,939 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:58" (1/1) ... [2022-11-20 17:46:58,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:58" (1/1) ... [2022-11-20 17:46:58,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:46:58,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:46:58,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:46:58,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:46:58,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:58" (1/1) ... [2022-11-20 17:46:58,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:46:58,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:46:58,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:46:58,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:46:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 17:46:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 17:46:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 17:46:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 17:46:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:46:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:46:59,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:46:59,110 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:46:59,112 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:46:59,268 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:46:59,284 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:46:59,284 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 17:46:59,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:46:59 BoogieIcfgContainer [2022-11-20 17:46:59,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:46:59,288 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:46:59,288 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:46:59,298 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:46:59,298 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:46:59" (1/1) ... [2022-11-20 17:46:59,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:46:59,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:46:59,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2022-11-20 17:46:59,433 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2022-11-20 17:46:59,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 17:46:59,436 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:46:59,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:46:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:46:59,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:46:59,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:46:59,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2022-11-20 17:46:59,777 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2022-11-20 17:46:59,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 17:46:59,777 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:46:59,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:46:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:46:59,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:46:59,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:46:59,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2022-11-20 17:46:59,876 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2022-11-20 17:46:59,877 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 17:46:59,877 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2022-11-20 17:46:59,886 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2022-11-20 17:46:59,909 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:46:59,915 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:46:59,915 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:46:59,915 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:46:59,916 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:46:59,916 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:46:59,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:46:59 ImpRootNode [2022-11-20 17:46:59,917 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:46:59,917 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:46:59,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:46:59,937 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:46:59,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:46:59" (3/4) ... [2022-11-20 17:46:59,941 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 17:46:59,955 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-20 17:46:59,955 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 17:46:59,956 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 17:46:59,956 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 17:47:00,011 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:47:00,011 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:47:00,012 INFO L158 Benchmark]: Toolchain (without parser) took 1644.50ms. Allocated memory is still 153.1MB. Free memory was 112.1MB in the beginning and 121.0MB in the end (delta: -8.9MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2022-11-20 17:47:00,012 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 111.1MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:47:00,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 482.94ms. Allocated memory is still 153.1MB. Free memory was 112.1MB in the beginning and 95.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 17:47:00,013 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.98ms. Allocated memory is still 153.1MB. Free memory was 95.9MB in the beginning and 93.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:47:00,014 INFO L158 Benchmark]: Boogie Preprocessor took 34.95ms. Allocated memory is still 153.1MB. Free memory was 93.9MB in the beginning and 92.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:47:00,014 INFO L158 Benchmark]: RCFGBuilder took 344.16ms. Allocated memory is still 153.1MB. Free memory was 92.5MB in the beginning and 79.2MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 17:47:00,015 INFO L158 Benchmark]: CodeCheck took 628.64ms. Allocated memory is still 153.1MB. Free memory was 79.2MB in the beginning and 61.7MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 17:47:00,015 INFO L158 Benchmark]: Witness Printer took 93.87ms. Allocated memory is still 153.1MB. Free memory was 61.7MB in the beginning and 121.0MB in the end (delta: -59.4MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2022-11-20 17:47:00,018 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 - PositiveResult [Line: 530]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 530]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 526]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 511]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 520]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 511]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 517]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 111.1MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 482.94ms. Allocated memory is still 153.1MB. Free memory was 112.1MB in the beginning and 95.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.98ms. Allocated memory is still 153.1MB. Free memory was 95.9MB in the beginning and 93.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.95ms. Allocated memory is still 153.1MB. Free memory was 93.9MB in the beginning and 92.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 344.16ms. Allocated memory is still 153.1MB. Free memory was 92.5MB in the beginning and 79.2MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 628.64ms. Allocated memory is still 153.1MB. Free memory was 79.2MB in the beginning and 61.7MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 93.87ms. Allocated memory is still 153.1MB. Free memory was 61.7MB in the beginning and 121.0MB in the end (delta: -59.4MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 17:47:00,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f56a8cf-dcad-44aa-b422-35cd8559dc0e/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE