./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark26_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a77c7e86-c510-4ba8-b414-1f0d38a1d2a6/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a77c7e86-c510-4ba8-b414-1f0d38a1d2a6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a77c7e86-c510-4ba8-b414-1f0d38a1d2a6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a77c7e86-c510-4ba8-b414-1f0d38a1d2a6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark26_linear.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a77c7e86-c510-4ba8-b414-1f0d38a1d2a6/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a77c7e86-c510-4ba8-b414-1f0d38a1d2a6/bin/uautomizer --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 32bit --witnessprinter.graph.data.programhash 7a6eaea59c0b35225373a459ea8360d703e45820 ....................................................................................................................................................................................................................................................................................................................... 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 19:35:46,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:35:46,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:35:46,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:35:46,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:35:46,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:35:46,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:35:46,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:35:46,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:35:46,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:35:46,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:35:46,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:35:46,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:35:46,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:35:46,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:35:46,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:35:46,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:35:46,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:35:46,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:35:46,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:35:46,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:35:46,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:35:46,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:35:46,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:35:46,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:35:46,137 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:35:46,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:35:46,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:35:46,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:35:46,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:35:46,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:35:46,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:35:46,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:35:46,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:35:46,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:35:46,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:35:46,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:35:46,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:35:46,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:35:46,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:35:46,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:35:46,151 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a77c7e86-c510-4ba8-b414-1f0d38a1d2a6/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-29 19:35:46,175 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:35:46,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:35:46,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:35:46,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:35:46,177 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:35:46,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:35:46,178 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:35:46,178 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:35:46,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:35:46,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:35:46,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:35:46,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:35:46,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:35:46,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:35:46,180 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 19:35:46,180 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:35:46,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:35:46,180 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:35:46,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:35:46,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:35:46,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:35:46,181 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:35:46,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:35:46,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:35:46,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:35:46,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:35:46,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:35:46,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:35:46,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:35:46,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:35:46,183 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:35:46,183 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_a77c7e86-c510-4ba8-b414-1f0d38a1d2a6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a77c7e86-c510-4ba8-b414-1f0d38a1d2a6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a6eaea59c0b35225373a459ea8360d703e45820 [2020-11-29 19:35:46,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:35:46,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:35:46,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:35:46,467 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:35:46,469 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:35:46,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a77c7e86-c510-4ba8-b414-1f0d38a1d2a6/bin/uautomizer/../../sv-benchmarks/c/loop-zilu/benchmark26_linear.i [2020-11-29 19:35:46,549 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a77c7e86-c510-4ba8-b414-1f0d38a1d2a6/bin/uautomizer/data/56a9cb8be/fffcfc492b984b72a911aa6ce2ae59da/FLAG04dd4db14 [2020-11-29 19:35:47,097 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:35:47,097 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a77c7e86-c510-4ba8-b414-1f0d38a1d2a6/sv-benchmarks/c/loop-zilu/benchmark26_linear.i [2020-11-29 19:35:47,105 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a77c7e86-c510-4ba8-b414-1f0d38a1d2a6/bin/uautomizer/data/56a9cb8be/fffcfc492b984b72a911aa6ce2ae59da/FLAG04dd4db14 [2020-11-29 19:35:47,459 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a77c7e86-c510-4ba8-b414-1f0d38a1d2a6/bin/uautomizer/data/56a9cb8be/fffcfc492b984b72a911aa6ce2ae59da [2020-11-29 19:35:47,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:35:47,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:35:47,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:35:47,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:35:47,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:35:47,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:35:47" (1/1) ... [2020-11-29 19:35:47,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bbc517d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:47, skipping insertion in model container [2020-11-29 19:35:47,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:35:47" (1/1) ... [2020-11-29 19:35:47,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:35:47,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:35:47,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:35:47,703 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:35:47,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:35:47,731 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:35:47,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:47 WrapperNode [2020-11-29 19:35:47,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:35:47,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:35:47,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:35:47,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:35:47,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:47" (1/1) ... [2020-11-29 19:35:47,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:47" (1/1) ... [2020-11-29 19:35:47,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:35:47,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:35:47,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:35:47,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:35:47,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:47" (1/1) ... [2020-11-29 19:35:47,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:47" (1/1) ... [2020-11-29 19:35:47,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:47" (1/1) ... [2020-11-29 19:35:47,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:47" (1/1) ... [2020-11-29 19:35:47,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:47" (1/1) ... [2020-11-29 19:35:47,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:47" (1/1) ... [2020-11-29 19:35:47,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:47" (1/1) ... [2020-11-29 19:35:47,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:35:47,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:35:47,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:35:47,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:35:47,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a77c7e86-c510-4ba8-b414-1f0d38a1d2a6/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 19:35:47,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:35:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:35:47,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:35:47,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:35:48,077 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:35:48,078 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 19:35:48,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:35:48 BoogieIcfgContainer [2020-11-29 19:35:48,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:35:48,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:35:48,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:35:48,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:35:48,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:35:47" (1/3) ... [2020-11-29 19:35:48,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5797ad9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:35:48, skipping insertion in model container [2020-11-29 19:35:48,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:47" (2/3) ... [2020-11-29 19:35:48,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5797ad9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:35:48, skipping insertion in model container [2020-11-29 19:35:48,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:35:48" (3/3) ... [2020-11-29 19:35:48,109 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark26_linear.i [2020-11-29 19:35:48,134 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:35:48,138 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-29 19:35:48,165 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-29 19:35:48,205 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:35:48,206 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:35:48,206 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:35:48,206 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:35:48,206 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:35:48,206 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:35:48,207 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:35:48,207 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:35:48,252 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-11-29 19:35:48,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 19:35:48,257 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:35:48,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-29 19:35:48,258 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:35:48,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:35:48,264 INFO L82 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2020-11-29 19:35:48,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:35:48,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073948242] [2020-11-29 19:35:48,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:35:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:35:48,451 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 19:35:48,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073948242] [2020-11-29 19:35:48,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:35:48,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:35:48,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527341811] [2020-11-29 19:35:48,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:35:48,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:35:48,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:35:48,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:35:48,474 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2020-11-29 19:35:48,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:35:48,569 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2020-11-29 19:35:48,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:35:48,573 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-29 19:35:48,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:35:48,581 INFO L225 Difference]: With dead ends: 30 [2020-11-29 19:35:48,581 INFO L226 Difference]: Without dead ends: 8 [2020-11-29 19:35:48,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:35:48,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-11-29 19:35:48,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-11-29 19:35:48,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-29 19:35:48,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2020-11-29 19:35:48,650 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2020-11-29 19:35:48,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:35:48,651 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2020-11-29 19:35:48,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:35:48,651 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-11-29 19:35:48,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 19:35:48,652 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:35:48,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:35:48,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:35:48,653 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:35:48,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:35:48,654 INFO L82 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2020-11-29 19:35:48,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:35:48,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827140739] [2020-11-29 19:35:48,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:35:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:35:48,698 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 19:35:48,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827140739] [2020-11-29 19:35:48,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:35:48,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:35:48,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345634511] [2020-11-29 19:35:48,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:35:48,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:35:48,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:35:48,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:35:48,702 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 3 states. [2020-11-29 19:35:48,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:35:48,731 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2020-11-29 19:35:48,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:35:48,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-29 19:35:48,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:35:48,732 INFO L225 Difference]: With dead ends: 7 [2020-11-29 19:35:48,732 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 19:35:48,733 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 [2020-11-29 19:35:48,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 19:35:48,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 19:35:48,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 19:35:48,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:35:48,734 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-11-29 19:35:48,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:35:48,734 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:35:48,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:35:48,734 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:35:48,734 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:35:48,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:35:48,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 19:35:48,760 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-11-29 19:35:48,761 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 19:35:48,761 INFO L270 CegarLoopResult]: At program point L27(lines 19 28) the Hoare annotation is: (<= ULTIMATE.start_main_~y~0 2147483647) [2020-11-29 19:35:48,761 INFO L270 CegarLoopResult]: At program point L23-2(lines 23 25) the Hoare annotation is: (and (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-11-29 19:35:48,761 INFO L274 CegarLoopResult]: For program point L23-3(lines 23 25) no Hoare annotation was computed. [2020-11-29 19:35:48,762 INFO L274 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-11-29 19:35:48,762 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-11-29 19:35:48,762 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 19:35:48,762 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-11-29 19:35:48,762 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 19:35:48,762 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 19:35:48,762 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-11-29 19:35:48,763 INFO L274 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-11-29 19:35:48,763 INFO L274 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-11-29 19:35:48,763 INFO L274 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2020-11-29 19:35:48,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:35:48 BoogieIcfgContainer [2020-11-29 19:35:48,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:35:48,783 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:35:48,784 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:35:48,784 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:35:48,784 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:35:48" (3/4) ... [2020-11-29 19:35:48,787 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:35:48,799 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-29 19:35:48,800 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 19:35:48,801 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:35:48,801 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:35:48,839 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a77c7e86-c510-4ba8-b414-1f0d38a1d2a6/bin/uautomizer/witness.graphml [2020-11-29 19:35:48,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:35:48,841 INFO L168 Benchmark]: Toolchain (without parser) took 1376.88 ms. Allocated memory is still 107.0 MB. Free memory was 81.6 MB in the beginning and 74.6 MB in the end (delta: 7.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:48,842 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:35:48,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.00 ms. Allocated memory is still 107.0 MB. Free memory was 81.4 MB in the beginning and 84.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:48,843 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.05 ms. Allocated memory is still 107.0 MB. Free memory was 84.9 MB in the beginning and 83.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:48,843 INFO L168 Benchmark]: Boogie Preprocessor took 25.88 ms. Allocated memory is still 107.0 MB. Free memory was 83.4 MB in the beginning and 82.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:35:48,844 INFO L168 Benchmark]: RCFGBuilder took 286.54 ms. Allocated memory is still 107.0 MB. Free memory was 82.4 MB in the beginning and 71.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:48,845 INFO L168 Benchmark]: TraceAbstraction took 701.45 ms. Allocated memory is still 107.0 MB. Free memory was 71.1 MB in the beginning and 77.1 MB in the end (delta: -6.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:35:48,845 INFO L168 Benchmark]: Witness Printer took 55.77 ms. Allocated memory is still 107.0 MB. Free memory was 76.6 MB in the beginning and 74.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:48,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 267.00 ms. Allocated memory is still 107.0 MB. Free memory was 81.4 MB in the beginning and 84.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.05 ms. Allocated memory is still 107.0 MB. Free memory was 84.9 MB in the beginning and 83.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.88 ms. Allocated memory is still 107.0 MB. Free memory was 83.4 MB in the beginning and 82.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 286.54 ms. Allocated memory is still 107.0 MB. Free memory was 82.4 MB in the beginning and 71.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 701.45 ms. Allocated memory is still 107.0 MB. Free memory was 71.1 MB in the beginning and 77.1 MB in the end (delta: -6.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 55.77 ms. Allocated memory is still 107.0 MB. Free memory was 76.6 MB in the beginning and 74.6 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: 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: 23]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 && y <= 2147483647 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 27 SDslu, 8 SDs, 0 SdLazy, 17 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 12 HoareAnnotationTreeSize, 2 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 145 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...