./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test28-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ae26009b-8bcf-4581-bdae-6c29054522b9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ae26009b-8bcf-4581-bdae-6c29054522b9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ae26009b-8bcf-4581-bdae-6c29054522b9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ae26009b-8bcf-4581-bdae-6c29054522b9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test28-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ae26009b-8bcf-4581-bdae-6c29054522b9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ae26009b-8bcf-4581-bdae-6c29054522b9/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e116c6e12c8b7e2ae6090f5bc613fcdc6f61f79 ..................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:36:01,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:36:01,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:36:01,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:36:01,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:36:01,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:36:01,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:36:01,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:36:01,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:36:01,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:36:01,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:36:01,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:36:01,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:36:01,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:36:01,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:36:01,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:36:01,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:36:01,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:36:01,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:36:01,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:36:01,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:36:01,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:36:01,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:36:01,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:36:01,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:36:01,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:36:01,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:36:01,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:36:01,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:36:01,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:36:01,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:36:01,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:36:01,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:36:01,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:36:01,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:36:01,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:36:01,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:36:01,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:36:01,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:36:01,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:36:01,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:36:01,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ae26009b-8bcf-4581-bdae-6c29054522b9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:36:01,979 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:36:01,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:36:01,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:36:01,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:36:01,981 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:36:01,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:36:01,981 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:36:01,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:36:01,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:36:01,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:36:01,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:36:01,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:36:01,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:36:01,982 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:36:01,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:36:01,983 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:36:01,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:36:01,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:36:01,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:36:01,984 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:36:01,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:36:01,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:36:01,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:36:01,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:36:01,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:36:01,985 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:36:01,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:36:01,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:36:01,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:36:01,987 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-vcloud-master/worker/run_dir_ae26009b-8bcf-4581-bdae-6c29054522b9/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ae26009b-8bcf-4581-bdae-6c29054522b9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e116c6e12c8b7e2ae6090f5bc613fcdc6f61f79 [2020-11-29 19:36:02,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:36:02,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:36:02,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:36:02,343 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:36:02,345 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:36:02,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ae26009b-8bcf-4581-bdae-6c29054522b9/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/test28-2.c [2020-11-29 19:36:02,431 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae26009b-8bcf-4581-bdae-6c29054522b9/bin/uautomizer/data/8a4eed94a/2f555b77456942038546c58035bceed2/FLAGe3e3fd1e8 [2020-11-29 19:36:02,941 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:36:02,942 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ae26009b-8bcf-4581-bdae-6c29054522b9/sv-benchmarks/c/ldv-regression/test28-2.c [2020-11-29 19:36:02,947 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae26009b-8bcf-4581-bdae-6c29054522b9/bin/uautomizer/data/8a4eed94a/2f555b77456942038546c58035bceed2/FLAGe3e3fd1e8 [2020-11-29 19:36:03,319 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ae26009b-8bcf-4581-bdae-6c29054522b9/bin/uautomizer/data/8a4eed94a/2f555b77456942038546c58035bceed2 [2020-11-29 19:36:03,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:36:03,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:36:03,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:36:03,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:36:03,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:36:03,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:36:03" (1/1) ... [2020-11-29 19:36:03,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a55b7dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:03, skipping insertion in model container [2020-11-29 19:36:03,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:36:03" (1/1) ... [2020-11-29 19:36:03,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:36:03,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:36:03,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:36:03,612 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:36:03,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:36:03,647 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:36:03,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:03 WrapperNode [2020-11-29 19:36:03,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:36:03,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:36:03,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:36:03,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:36:03,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:03" (1/1) ... [2020-11-29 19:36:03,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:03" (1/1) ... [2020-11-29 19:36:03,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:36:03,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:36:03,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:36:03,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:36:03,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:03" (1/1) ... [2020-11-29 19:36:03,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:03" (1/1) ... [2020-11-29 19:36:03,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:03" (1/1) ... [2020-11-29 19:36:03,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:03" (1/1) ... [2020-11-29 19:36:03,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:03" (1/1) ... [2020-11-29 19:36:03,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:03" (1/1) ... [2020-11-29 19:36:03,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:03" (1/1) ... [2020-11-29 19:36:03,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:36:03,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:36:03,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:36:03,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:36:03,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae26009b-8bcf-4581-bdae-6c29054522b9/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:36:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:36:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:36:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:36:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:36:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:36:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:36:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:36:04,079 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:36:04,080 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 19:36:04,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:36:04 BoogieIcfgContainer [2020-11-29 19:36:04,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:36:04,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:36:04,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:36:04,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:36:04,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:36:03" (1/3) ... [2020-11-29 19:36:04,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ce54f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:36:04, skipping insertion in model container [2020-11-29 19:36:04,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:03" (2/3) ... [2020-11-29 19:36:04,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ce54f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:36:04, skipping insertion in model container [2020-11-29 19:36:04,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:36:04" (3/3) ... [2020-11-29 19:36:04,112 INFO L111 eAbstractionObserver]: Analyzing ICFG test28-2.c [2020-11-29 19:36:04,125 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:36:04,129 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:36:04,143 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:36:04,175 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:36:04,175 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:36:04,175 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:36:04,175 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:36:04,176 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:36:04,176 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:36:04,176 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:36:04,176 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:36:04,212 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-11-29 19:36:04,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 19:36:04,226 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:36:04,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:36:04,227 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:36:04,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:36:04,244 INFO L82 PathProgramCache]: Analyzing trace with hash -594068692, now seen corresponding path program 1 times [2020-11-29 19:36:04,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:36:04,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222943232] [2020-11-29 19:36:04,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:36:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:36:04,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:36:04,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222943232] [2020-11-29 19:36:04,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:36:04,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 19:36:04,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510763145] [2020-11-29 19:36:04,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 19:36:04,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:36:04,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 19:36:04,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 19:36:04,574 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 6 states. [2020-11-29 19:36:04,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:36:04,770 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2020-11-29 19:36:04,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 19:36:04,774 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-11-29 19:36:04,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:36:04,792 INFO L225 Difference]: With dead ends: 26 [2020-11-29 19:36:04,793 INFO L226 Difference]: Without dead ends: 10 [2020-11-29 19:36:04,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-11-29 19:36:04,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-29 19:36:04,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-29 19:36:04,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-29 19:36:04,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2020-11-29 19:36:04,849 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2020-11-29 19:36:04,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:36:04,850 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2020-11-29 19:36:04,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 19:36:04,850 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-11-29 19:36:04,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 19:36:04,851 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:36:04,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:36:04,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:36:04,851 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:36:04,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:36:04,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1182785712, now seen corresponding path program 1 times [2020-11-29 19:36:04,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:36:04,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113353127] [2020-11-29 19:36:04,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:36:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:36:05,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:36:05,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113353127] [2020-11-29 19:36:05,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:36:05,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 19:36:05,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653551822] [2020-11-29 19:36:05,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 19:36:05,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:36:05,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 19:36:05,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-29 19:36:05,090 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand 7 states. [2020-11-29 19:36:05,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:36:05,196 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-11-29 19:36:05,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 19:36:05,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2020-11-29 19:36:05,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:36:05,197 INFO L225 Difference]: With dead ends: 10 [2020-11-29 19:36:05,197 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 19:36:05,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-29 19:36:05,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 19:36:05,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 19:36:05,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 19:36:05,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:36:05,199 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-11-29 19:36:05,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:36:05,200 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:36:05,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 19:36:05,200 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:36:05,200 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:36:05,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:36:05,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 19:36:05,227 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 19:36:05,228 INFO L277 CegarLoopResult]: At program point L29(lines 12 30) the Hoare annotation is: true [2020-11-29 19:36:05,228 INFO L270 CegarLoopResult]: At program point L23(lines 13 30) the Hoare annotation is: false [2020-11-29 19:36:05,228 INFO L274 CegarLoopResult]: For program point L17(lines 17 21) no Hoare annotation was computed. [2020-11-29 19:36:05,228 INFO L274 CegarLoopResult]: For program point L17-2(lines 17 21) no Hoare annotation was computed. [2020-11-29 19:36:05,229 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 19:36:05,229 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 19:36:05,229 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 19:36:05,229 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 19:36:05,229 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 19:36:05,229 INFO L274 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-11-29 19:36:05,230 INFO L274 CegarLoopResult]: For program point L22-2(lines 22 24) no Hoare annotation was computed. [2020-11-29 19:36:05,230 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-11-29 19:36:05,230 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-11-29 19:36:05,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:36:05 BoogieIcfgContainer [2020-11-29 19:36:05,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:36:05,249 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:36:05,249 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:36:05,249 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:36:05,250 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:36:04" (3/4) ... [2020-11-29 19:36:05,253 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:36:05,264 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-29 19:36:05,264 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 19:36:05,265 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:36:05,265 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:36:05,311 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ae26009b-8bcf-4581-bdae-6c29054522b9/bin/uautomizer/witness.graphml [2020-11-29 19:36:05,314 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:36:05,316 INFO L168 Benchmark]: Toolchain (without parser) took 1991.81 ms. Allocated memory is still 130.0 MB. Free memory was 103.1 MB in the beginning and 81.5 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:36:05,323 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory is still 54.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:36:05,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.79 ms. Allocated memory is still 130.0 MB. Free memory was 102.7 MB in the beginning and 107.2 MB in the end (delta: -4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:36:05,333 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.21 ms. Allocated memory is still 130.0 MB. Free memory was 107.2 MB in the beginning and 105.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:36:05,333 INFO L168 Benchmark]: Boogie Preprocessor took 25.60 ms. Allocated memory is still 130.0 MB. Free memory was 105.9 MB in the beginning and 105.1 MB in the end (delta: 840.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:36:05,334 INFO L168 Benchmark]: RCFGBuilder took 368.20 ms. Allocated memory is still 130.0 MB. Free memory was 104.7 MB in the beginning and 92.1 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:36:05,335 INFO L168 Benchmark]: TraceAbstraction took 1152.18 ms. Allocated memory is still 130.0 MB. Free memory was 91.8 MB in the beginning and 84.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:36:05,336 INFO L168 Benchmark]: Witness Printer took 65.30 ms. Allocated memory is still 130.0 MB. Free memory was 84.2 MB in the beginning and 81.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:36:05,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory is still 54.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 322.79 ms. Allocated memory is still 130.0 MB. Free memory was 102.7 MB in the beginning and 107.2 MB in the end (delta: -4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.21 ms. Allocated memory is still 130.0 MB. Free memory was 107.2 MB in the beginning and 105.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.60 ms. Allocated memory is still 130.0 MB. Free memory was 105.9 MB in the beginning and 105.1 MB in the end (delta: 840.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 368.20 ms. Allocated memory is still 130.0 MB. Free memory was 104.7 MB in the beginning and 92.1 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1152.18 ms. Allocated memory is still 130.0 MB. Free memory was 91.8 MB in the beginning and 84.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * Witness Printer took 65.30 ms. Allocated memory is still 130.0 MB. Free memory was 84.2 MB in the beginning and 81.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 26 SDslu, 21 SDs, 0 SdLazy, 58 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 504 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...