./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c93c35-f286-44ee-b427-f893638afc53/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c93c35-f286-44ee-b427-f893638afc53/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c93c35-f286-44ee-b427-f893638afc53/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c93c35-f286-44ee-b427-f893638afc53/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c93c35-f286-44ee-b427-f893638afc53/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c93c35-f286-44ee-b427-f893638afc53/bin/uautomizer-Z5i5R5N3CC --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5e607d57754c4f188315c4983a58e4a794edbb35 .......................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:33:58,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:33:58,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:33:58,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:33:58,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:33:58,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:33:58,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:33:58,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:33:58,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:33:58,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:33:58,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:33:58,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:33:58,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:33:58,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:33:58,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:33:58,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:33:58,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:33:58,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:33:58,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:33:58,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:33:58,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:33:58,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:33:58,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:33:58,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:33:58,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:33:58,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:33:58,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:33:58,950 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:33:58,951 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:33:58,952 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:33:58,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:33:58,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:33:58,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:33:58,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:33:58,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:33:58,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:33:58,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:33:58,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:33:58,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:33:58,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:33:58,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:33:58,967 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c93c35-f286-44ee-b427-f893638afc53/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-11 00:33:59,026 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:33:59,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:33:59,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:33:59,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:33:59,031 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:33:59,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:33:59,032 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:33:59,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:33:59,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:33:59,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:33:59,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:33:59,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:33:59,043 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 00:33:59,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:33:59,043 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:33:59,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:33:59,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:33:59,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:33:59,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:33:59,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:33:59,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:33:59,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:33:59,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:33:59,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:33:59,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:33:59,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:33:59,047 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:33:59,047 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_23c93c35-f286-44ee-b427-f893638afc53/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c93c35-f286-44ee-b427-f893638afc53/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e607d57754c4f188315c4983a58e4a794edbb35 [2021-10-11 00:33:59,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:33:59,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:33:59,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:33:59,439 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:33:59,441 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:33:59,442 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c93c35-f286-44ee-b427-f893638afc53/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c [2021-10-11 00:33:59,548 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c93c35-f286-44ee-b427-f893638afc53/bin/uautomizer-Z5i5R5N3CC/data/197b38457/06f375e9c77a4a1b859e254026b4541f/FLAGab9e07bc4 [2021-10-11 00:34:00,070 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:34:00,071 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c93c35-f286-44ee-b427-f893638afc53/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c [2021-10-11 00:34:00,085 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c93c35-f286-44ee-b427-f893638afc53/bin/uautomizer-Z5i5R5N3CC/data/197b38457/06f375e9c77a4a1b859e254026b4541f/FLAGab9e07bc4 [2021-10-11 00:34:00,410 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c93c35-f286-44ee-b427-f893638afc53/bin/uautomizer-Z5i5R5N3CC/data/197b38457/06f375e9c77a4a1b859e254026b4541f [2021-10-11 00:34:00,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:34:00,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:34:00,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:34:00,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:34:00,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:34:00,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:34:00" (1/1) ... [2021-10-11 00:34:00,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fdb3c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:00, skipping insertion in model container [2021-10-11 00:34:00,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:34:00" (1/1) ... [2021-10-11 00:34:00,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:34:00,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:34:00,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:34:00,653 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:34:00,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:34:00,681 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:34:00,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:00 WrapperNode [2021-10-11 00:34:00,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:34:00,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:34:00,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:34:00,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:34:00,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:00" (1/1) ... [2021-10-11 00:34:00,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:00" (1/1) ... [2021-10-11 00:34:00,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:34:00,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:34:00,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:34:00,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:34:00,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:00" (1/1) ... [2021-10-11 00:34:00,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:00" (1/1) ... [2021-10-11 00:34:00,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:00" (1/1) ... [2021-10-11 00:34:00,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:00" (1/1) ... [2021-10-11 00:34:00,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:00" (1/1) ... [2021-10-11 00:34:00,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:00" (1/1) ... [2021-10-11 00:34:00,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:00" (1/1) ... [2021-10-11 00:34:00,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:34:00,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:34:00,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:34:00,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:34:00,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:00" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c93c35-f286-44ee-b427-f893638afc53/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:34:00,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:34:00,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:34:01,127 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:34:01,128 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:34:01,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:34:01 BoogieIcfgContainer [2021-10-11 00:34:01,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:34:01,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:34:01,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:34:01,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:34:01,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:34:00" (1/3) ... [2021-10-11 00:34:01,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bef05c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:34:01, skipping insertion in model container [2021-10-11 00:34:01,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:34:00" (2/3) ... [2021-10-11 00:34:01,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bef05c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:34:01, skipping insertion in model container [2021-10-11 00:34:01,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:34:01" (3/3) ... [2021-10-11 00:34:01,146 INFO L111 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c [2021-10-11 00:34:01,168 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:34:01,172 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 00:34:01,183 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 00:34:01,211 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:34:01,211 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:34:01,211 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:34:01,212 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:34:01,212 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:34:01,212 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:34:01,212 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:34:01,212 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:34:01,226 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2021-10-11 00:34:01,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 00:34:01,232 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:01,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 00:34:01,233 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:34:01,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:01,241 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-10-11 00:34:01,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:01,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471309665] [2021-10-11 00:34:01,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:01,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:34:01,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471309665] [2021-10-11 00:34:01,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:34:01,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 00:34:01,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073497888] [2021-10-11 00:34:01,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:34:01,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:01,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:34:01,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:34:01,452 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2021-10-11 00:34:01,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:01,511 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-10-11 00:34:01,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:34:01,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-10-11 00:34:01,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:01,523 INFO L225 Difference]: With dead ends: 14 [2021-10-11 00:34:01,523 INFO L226 Difference]: Without dead ends: 5 [2021-10-11 00:34:01,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:34:01,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2021-10-11 00:34:01,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2021-10-11 00:34:01,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-11 00:34:01,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2021-10-11 00:34:01,564 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2021-10-11 00:34:01,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:01,564 INFO L481 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2021-10-11 00:34:01,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:34:01,565 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2021-10-11 00:34:01,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 00:34:01,565 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:34:01,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 00:34:01,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:34:01,567 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:34:01,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:34:01,568 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2021-10-11 00:34:01,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:34:01,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382609841] [2021-10-11 00:34:01,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:34:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:34:01,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:34:01,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382609841] [2021-10-11 00:34:01,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:34:01,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:34:01,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066587320] [2021-10-11 00:34:01,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:34:01,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:34:01,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:34:01,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:34:01,609 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2021-10-11 00:34:01,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:34:01,647 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2021-10-11 00:34:01,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:34:01,655 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2021-10-11 00:34:01,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:34:01,656 INFO L225 Difference]: With dead ends: 5 [2021-10-11 00:34:01,656 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:34:01,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:34:01,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:34:01,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:34:01,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:34:01,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:34:01,659 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-11 00:34:01,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:34:01,659 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:34:01,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:34:01,672 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:34:01,673 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:34:01,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:34:01,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:34:01,697 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2021-10-11 00:34:01,698 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:34:01,698 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2021-10-11 00:34:01,698 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:34:01,699 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:34:01,699 INFO L258 CegarLoopResult]: At program point L20(lines 13 21) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-10-11 00:34:01,699 INFO L262 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2021-10-11 00:34:01,700 INFO L262 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2021-10-11 00:34:01,700 INFO L258 CegarLoopResult]: At program point L17-2(lines 17 19) the Hoare annotation is: (and (<= 23 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 2147483647)) [2021-10-11 00:34:01,701 INFO L262 CegarLoopResult]: For program point L17-3(lines 17 19) no Hoare annotation was computed. [2021-10-11 00:34:01,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:34:01 BoogieIcfgContainer [2021-10-11 00:34:01,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:34:01,732 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:34:01,732 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:34:01,733 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:34:01,733 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:34:01" (3/4) ... [2021-10-11 00:34:01,752 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:34:01,763 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-11 00:34:01,776 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 00:34:01,832 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23c93c35-f286-44ee-b427-f893638afc53/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:34:01,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:34:01,835 INFO L168 Benchmark]: Toolchain (without parser) took 1418.77 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 52.0 MB in the beginning and 48.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 24.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:01,836 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 86.0 MB. Free memory was 59.5 MB in the beginning and 59.5 MB in the end (delta: 31.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:34:01,838 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.74 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 51.9 MB in the beginning and 86.3 MB in the end (delta: -34.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:01,839 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.85 ms. Allocated memory is still 109.1 MB. Free memory was 86.3 MB in the beginning and 85.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:34:01,840 INFO L168 Benchmark]: Boogie Preprocessor took 42.70 ms. Allocated memory is still 109.1 MB. Free memory was 85.3 MB in the beginning and 84.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:01,842 INFO L168 Benchmark]: RCFGBuilder took 348.23 ms. Allocated memory is still 109.1 MB. Free memory was 84.2 MB in the beginning and 75.8 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:01,843 INFO L168 Benchmark]: TraceAbstraction took 597.03 ms. Allocated memory is still 109.1 MB. Free memory was 75.3 MB in the beginning and 50.6 MB in the end (delta: 24.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:01,844 INFO L168 Benchmark]: Witness Printer took 100.33 ms. Allocated memory is still 109.1 MB. Free memory was 50.6 MB in the beginning and 48.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:34:01,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 86.0 MB. Free memory was 59.5 MB in the beginning and 59.5 MB in the end (delta: 31.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 265.74 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 51.9 MB in the beginning and 86.3 MB in the end (delta: -34.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.85 ms. Allocated memory is still 109.1 MB. Free memory was 86.3 MB in the beginning and 85.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.70 ms. Allocated memory is still 109.1 MB. Free memory was 85.3 MB in the beginning and 84.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 348.23 ms. Allocated memory is still 109.1 MB. Free memory was 84.2 MB in the beginning and 75.8 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 597.03 ms. Allocated memory is still 109.1 MB. Free memory was 75.3 MB in the beginning and 50.6 MB in the end (delta: 24.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 100.33 ms. Allocated memory is still 109.1 MB. Free memory was 50.6 MB in the beginning and 48.6 MB in the end (delta: 2.1 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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: 17]: Loop Invariant Derived loop invariant: 23 <= y && x <= 2147483647 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 8 SDslu, 0 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 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...