./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test15.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test15.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu --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 939029ab77d002766921942100a4b605c93056ce11f57a75c8adfebda75a0e43 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:56:53,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:56:53,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:56:53,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:56:53,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:56:53,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:56:53,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:56:53,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:56:53,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:56:53,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:56:53,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:56:53,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:56:53,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:56:53,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:56:53,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:56:53,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:56:53,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:56:53,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:56:53,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:56:53,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:56:53,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:56:53,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:56:53,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:56:53,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:56:53,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:56:53,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:56:53,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:56:53,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:56:53,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:56:53,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:56:53,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:56:53,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:56:53,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:56:53,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:56:53,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:56:53,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:56:53,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:56:54,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:56:54,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:56:54,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:56:54,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:56:54,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:56:54,061 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:56:54,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:56:54,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:56:54,067 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:56:54,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:56:54,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:56:54,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:56:54,069 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:56:54,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:56:54,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:56:54,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:56:54,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:56:54,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:56:54,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:56:54,071 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:56:54,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:56:54,071 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:56:54,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:56:54,072 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:56:54,072 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:56:54,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:56:54,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:56:54,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:56:54,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:56:54,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:56:54,074 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:56:54,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:56:54,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:56:54,075 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_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 939029ab77d002766921942100a4b605c93056ce11f57a75c8adfebda75a0e43 [2021-11-23 15:56:54,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:56:54,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:56:54,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:56:54,402 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:56:54,403 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:56:54,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/ldv-regression/test15.c [2021-11-23 15:56:54,498 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu/data/0d79a3faa/c97b5df1918742f8ba429a891b35e215/FLAGdc6cafd84 [2021-11-23 15:56:55,023 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:56:55,027 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/sv-benchmarks/c/ldv-regression/test15.c [2021-11-23 15:56:55,034 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu/data/0d79a3faa/c97b5df1918742f8ba429a891b35e215/FLAGdc6cafd84 [2021-11-23 15:56:55,400 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu/data/0d79a3faa/c97b5df1918742f8ba429a891b35e215 [2021-11-23 15:56:55,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:56:55,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:56:55,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:56:55,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:56:55,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:56:55,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:55" (1/1) ... [2021-11-23 15:56:55,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac738d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:55, skipping insertion in model container [2021-11-23 15:56:55,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:55" (1/1) ... [2021-11-23 15:56:55,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:56:55,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:56:55,575 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_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/sv-benchmarks/c/ldv-regression/test15.c[538,551] [2021-11-23 15:56:55,578 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:56:55,587 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:56:55,635 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_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/sv-benchmarks/c/ldv-regression/test15.c[538,551] [2021-11-23 15:56:55,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:56:55,650 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:56:55,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:55 WrapperNode [2021-11-23 15:56:55,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:56:55,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:56:55,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:56:55,652 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:56:55,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:55" (1/1) ... [2021-11-23 15:56:55,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:55" (1/1) ... [2021-11-23 15:56:55,696 INFO L137 Inliner]: procedures = 14, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2021-11-23 15:56:55,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:56:55,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:56:55,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:56:55,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:56:55,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:55" (1/1) ... [2021-11-23 15:56:55,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:55" (1/1) ... [2021-11-23 15:56:55,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:55" (1/1) ... [2021-11-23 15:56:55,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:55" (1/1) ... [2021-11-23 15:56:55,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:55" (1/1) ... [2021-11-23 15:56:55,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:55" (1/1) ... [2021-11-23 15:56:55,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:55" (1/1) ... [2021-11-23 15:56:55,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:56:55,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:56:55,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:56:55,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:56:55,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:55" (1/1) ... [2021-11-23 15:56:55,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:56:55,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:56:55,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:56:55,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:56:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:56:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:56:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:56:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:56:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:56:55,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:56:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:56:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:56:55,933 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:56:55,935 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:56:56,099 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:56:56,123 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 15:56:56,123 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 15:56:56,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:56:56 BoogieIcfgContainer [2021-11-23 15:56:56,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 15:56:56,127 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 15:56:56,127 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 15:56:56,138 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 15:56:56,138 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:56:56" (1/1) ... [2021-11-23 15:56:56,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 15:56:56,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:56:56,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2021-11-23 15:56:56,208 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2021-11-23 15:56:56,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 15:56:56,210 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:56:56,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:56:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:56:56,505 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 15:56:56,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:56:56,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2021-11-23 15:56:56,545 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2021-11-23 15:56:56,546 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 15:56:56,546 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2021-11-23 15:56:56,557 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 15:56:56,566 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 15:56:56,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 03:56:56 ImpRootNode [2021-11-23 15:56:56,571 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 15:56:56,572 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 15:56:56,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 15:56:56,573 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 15:56:56,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:56:56" (3/4) ... [2021-11-23 15:56:56,576 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 15:56:56,586 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-11-23 15:56:56,587 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-23 15:56:56,587 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 15:56:56,587 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 15:56:56,629 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu/witness.graphml [2021-11-23 15:56:56,629 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 15:56:56,630 INFO L158 Benchmark]: Toolchain (without parser) took 1226.08ms. Allocated memory is still 102.8MB. Free memory was 74.9MB in the beginning and 47.3MB in the end (delta: 27.7MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2021-11-23 15:56:56,631 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 102.8MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:56:56,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.12ms. Allocated memory is still 102.8MB. Free memory was 74.7MB in the beginning and 76.7MB in the end (delta: -2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:56:56,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.87ms. Allocated memory is still 102.8MB. Free memory was 76.7MB in the beginning and 75.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:56:56,633 INFO L158 Benchmark]: Boogie Preprocessor took 47.19ms. Allocated memory is still 102.8MB. Free memory was 75.1MB in the beginning and 74.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:56:56,634 INFO L158 Benchmark]: RCFGBuilder took 380.69ms. Allocated memory is still 102.8MB. Free memory was 74.1MB in the beginning and 64.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:56:56,634 INFO L158 Benchmark]: CodeCheck took 444.66ms. Allocated memory is still 102.8MB. Free memory was 64.1MB in the beginning and 49.7MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 15:56:56,635 INFO L158 Benchmark]: Witness Printer took 57.26ms. Allocated memory is still 102.8MB. Free memory was 49.7MB in the beginning and 47.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:56:56,639 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, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, 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, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 1 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 102.8MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.12ms. Allocated memory is still 102.8MB. Free memory was 74.7MB in the beginning and 76.7MB in the end (delta: -2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.87ms. Allocated memory is still 102.8MB. Free memory was 76.7MB in the beginning and 75.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.19ms. Allocated memory is still 102.8MB. Free memory was 75.1MB in the beginning and 74.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 380.69ms. Allocated memory is still 102.8MB. Free memory was 74.1MB in the beginning and 64.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 444.66ms. Allocated memory is still 102.8MB. Free memory was 64.1MB in the beginning and 49.7MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 57.26ms. Allocated memory is still 102.8MB. Free memory was 49.7MB in the beginning and 47.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 15:56:56,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63d9fe3a-3d82-4414-8642-a69a5dd76b8c/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE