./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.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_c60b3246-554b-48f8-b71f-5e6710e129f9/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c60b3246-554b-48f8-b71f-5e6710e129f9/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c60b3246-554b-48f8-b71f-5e6710e129f9/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c60b3246-554b-48f8-b71f-5e6710e129f9/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c60b3246-554b-48f8-b71f-5e6710e129f9/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c60b3246-554b-48f8-b71f-5e6710e129f9/bin/utaipan-WLngWcDbfI --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bbffee41c5a3e36a7439f4e96877154fc3cf2a16 ................................................................................................................................................................................................................................................................................................................. 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 02:21:08,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:21:08,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:21:09,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:21:09,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:21:09,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:21:09,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:21:09,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:21:09,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:21:09,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:21:09,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:21:09,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:21:09,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:21:09,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:21:09,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:21:09,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:21:09,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:21:09,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:21:09,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:21:09,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:21:09,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:21:09,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:21:09,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:21:09,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:21:09,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:21:09,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:21:09,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:21:09,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:21:09,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:21:09,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:21:09,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:21:09,099 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:21:09,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:21:09,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:21:09,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:21:09,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:21:09,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:21:09,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:21:09,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:21:09,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:21:09,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:21:09,112 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c60b3246-554b-48f8-b71f-5e6710e129f9/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-11 02:21:09,155 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:21:09,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:21:09,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:21:09,157 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:21:09,157 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:21:09,158 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:21:09,158 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:21:09,158 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:21:09,158 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:21:09,158 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:21:09,160 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:21:09,160 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:21:09,160 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:21:09,160 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:21:09,161 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:21:09,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:21:09,162 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:21:09,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:21:09,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:21:09,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:21:09,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:21:09,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:21:09,163 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 02:21:09,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:21:09,163 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:21:09,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:21:09,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:21:09,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:21:09,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:21:09,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:21:09,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:21:09,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:21:09,167 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:21:09,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:21:09,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:21:09,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:21:09,168 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:21:09,168 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c60b3246-554b-48f8-b71f-5e6710e129f9/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c60b3246-554b-48f8-b71f-5e6710e129f9/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbffee41c5a3e36a7439f4e96877154fc3cf2a16 [2021-10-11 02:21:09,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:21:09,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:21:09,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:21:09,442 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:21:09,443 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:21:09,444 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c60b3246-554b-48f8-b71f-5e6710e129f9/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c [2021-10-11 02:21:09,525 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c60b3246-554b-48f8-b71f-5e6710e129f9/bin/utaipan-WLngWcDbfI/data/fc2d0eddd/f39b4202a3c74a708f4584e0a7dbe06d/FLAGdc77a1e3b [2021-10-11 02:21:09,953 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:21:09,954 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c60b3246-554b-48f8-b71f-5e6710e129f9/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c [2021-10-11 02:21:09,964 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c60b3246-554b-48f8-b71f-5e6710e129f9/bin/utaipan-WLngWcDbfI/data/fc2d0eddd/f39b4202a3c74a708f4584e0a7dbe06d/FLAGdc77a1e3b [2021-10-11 02:21:10,363 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c60b3246-554b-48f8-b71f-5e6710e129f9/bin/utaipan-WLngWcDbfI/data/fc2d0eddd/f39b4202a3c74a708f4584e0a7dbe06d [2021-10-11 02:21:10,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:21:10,367 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:21:10,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:21:10,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:21:10,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:21:10,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:10" (1/1) ... [2021-10-11 02:21:10,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d1d96f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:10, skipping insertion in model container [2021-10-11 02:21:10,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:10" (1/1) ... [2021-10-11 02:21:10,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:21:10,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:21:10,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:21:10,557 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:21:10,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:21:10,583 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:21:10,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:10 WrapperNode [2021-10-11 02:21:10,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:21:10,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:21:10,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:21:10,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:21:10,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:10" (1/1) ... [2021-10-11 02:21:10,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:10" (1/1) ... [2021-10-11 02:21:10,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:21:10,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:21:10,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:21:10,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:21:10,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:10" (1/1) ... [2021-10-11 02:21:10,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:10" (1/1) ... [2021-10-11 02:21:10,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:10" (1/1) ... [2021-10-11 02:21:10,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:10" (1/1) ... [2021-10-11 02:21:10,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:10" (1/1) ... [2021-10-11 02:21:10,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:10" (1/1) ... [2021-10-11 02:21:10,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:10" (1/1) ... [2021-10-11 02:21:10,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:21:10,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:21:10,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:21:10,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:21:10,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:10" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c60b3246-554b-48f8-b71f-5e6710e129f9/bin/utaipan-WLngWcDbfI/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 02:21:10,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:21:10,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:21:10,960 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:21:10,960 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 02:21:10,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:10 BoogieIcfgContainer [2021-10-11 02:21:10,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:21:10,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:21:10,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:21:10,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:21:10,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:21:10" (1/3) ... [2021-10-11 02:21:10,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9ed769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:10, skipping insertion in model container [2021-10-11 02:21:10,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:10" (2/3) ... [2021-10-11 02:21:10,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9ed769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:10, skipping insertion in model container [2021-10-11 02:21:10,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:10" (3/3) ... [2021-10-11 02:21:10,983 INFO L111 eAbstractionObserver]: Analyzing ICFG Urban-WST2013-Fig1.c [2021-10-11 02:21:11,004 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:21:11,008 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:21:11,018 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:21:11,041 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:21:11,042 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:21:11,042 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:21:11,042 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:21:11,042 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:21:11,042 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:21:11,043 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:21:11,043 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:21:11,056 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2021-10-11 02:21:11,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:21:11,060 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:11,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:21:11,061 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:21:11,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:11,067 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2021-10-11 02:21:11,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:11,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001987163] [2021-10-11 02:21:11,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:11,189 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 02:21:11,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001987163] [2021-10-11 02:21:11,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:11,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:21:11,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951326667] [2021-10-11 02:21:11,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:21:11,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:11,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:21:11,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:11,213 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2021-10-11 02:21:11,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:11,250 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2021-10-11 02:21:11,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:21:11,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2021-10-11 02:21:11,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:11,260 INFO L225 Difference]: With dead ends: 10 [2021-10-11 02:21:11,261 INFO L226 Difference]: Without dead ends: 7 [2021-10-11 02:21:11,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 02:21:11,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-11 02:21:11,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2021-10-11 02:21:11,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-11 02:21:11,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-10-11 02:21:11,294 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 7 transitions. Word has length 4 [2021-10-11 02:21:11,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:11,295 INFO L481 AbstractCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-10-11 02:21:11,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:21:11,295 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2021-10-11 02:21:11,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:21:11,295 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:11,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:21:11,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:21:11,296 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:21:11,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:11,297 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2021-10-11 02:21:11,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:11,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129229944] [2021-10-11 02:21:11,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:11,319 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 02:21:11,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129229944] [2021-10-11 02:21:11,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:11,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:21:11,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130656881] [2021-10-11 02:21:11,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:21:11,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:11,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:21:11,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:11,323 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. Second operand 3 states. [2021-10-11 02:21:11,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:11,346 INFO L93 Difference]: Finished difference Result 12 states and 16 transitions. [2021-10-11 02:21:11,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:21:11,347 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-10-11 02:21:11,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:11,348 INFO L225 Difference]: With dead ends: 12 [2021-10-11 02:21:11,348 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:21:11,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 02:21:11,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:21:11,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:21:11,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:21:11,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:21:11,350 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-10-11 02:21:11,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:11,350 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:21:11,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:21:11,350 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:21:11,351 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:21:11,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:21:11,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:21:11,361 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-10-11 02:21:11,362 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:21:11,362 INFO L262 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2021-10-11 02:21:11,362 INFO L262 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-10-11 02:21:11,362 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-10-11 02:21:11,362 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:21:11,363 INFO L262 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-10-11 02:21:11,363 INFO L265 CegarLoopResult]: At program point L18-2(lines 17 21) the Hoare annotation is: true [2021-10-11 02:21:11,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:21:11 BoogieIcfgContainer [2021-10-11 02:21:11,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:21:11,382 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:21:11,382 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:21:11,382 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:21:11,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:10" (3/4) ... [2021-10-11 02:21:11,386 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:21:11,411 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 02:21:11,411 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-11 02:21:11,412 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:21:11,476 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c60b3246-554b-48f8-b71f-5e6710e129f9/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:21:11,476 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:21:11,499 INFO L168 Benchmark]: Toolchain (without parser) took 1110.34 ms. Allocated memory is still 98.6 MB. Free memory was 67.4 MB in the beginning and 39.5 MB in the end (delta: 27.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:11,500 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 75.5 MB. Free memory was 31.5 MB in the beginning and 31.5 MB in the end (delta: 40.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:11,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 213.93 ms. Allocated memory is still 98.6 MB. Free memory was 67.4 MB in the beginning and 77.5 MB in the end (delta: -10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:11,501 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.82 ms. Allocated memory is still 98.6 MB. Free memory was 77.5 MB in the beginning and 76.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:11,502 INFO L168 Benchmark]: Boogie Preprocessor took 18.80 ms. Allocated memory is still 98.6 MB. Free memory was 76.3 MB in the beginning and 75.5 MB in the end (delta: 826.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:11,503 INFO L168 Benchmark]: RCFGBuilder took 327.41 ms. Allocated memory is still 98.6 MB. Free memory was 75.2 MB in the beginning and 65.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:11,505 INFO L168 Benchmark]: TraceAbstraction took 416.93 ms. Allocated memory is still 98.6 MB. Free memory was 65.0 MB in the beginning and 41.6 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:11,506 INFO L168 Benchmark]: Witness Printer took 94.57 ms. Allocated memory is still 98.6 MB. Free memory was 41.6 MB in the beginning and 39.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:11,511 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 75.5 MB. Free memory was 31.5 MB in the beginning and 31.5 MB in the end (delta: 40.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 213.93 ms. Allocated memory is still 98.6 MB. Free memory was 67.4 MB in the beginning and 77.5 MB in the end (delta: -10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.82 ms. Allocated memory is still 98.6 MB. Free memory was 77.5 MB in the beginning and 76.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.80 ms. Allocated memory is still 98.6 MB. Free memory was 76.3 MB in the beginning and 75.5 MB in the end (delta: 826.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 327.41 ms. Allocated memory is still 98.6 MB. Free memory was 75.2 MB in the beginning and 65.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 416.93 ms. Allocated memory is still 98.6 MB. Free memory was 65.0 MB in the beginning and 41.6 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 94.57 ms. Allocated memory is still 98.6 MB. Free memory was 41.6 MB in the beginning and 39.5 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: 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: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 3 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 53 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...