./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8d2927ae-d20a-4adf-b957-63a49963026c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8d2927ae-d20a-4adf-b957-63a49963026c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8d2927ae-d20a-4adf-b957-63a49963026c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8d2927ae-d20a-4adf-b957-63a49963026c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8d2927ae-d20a-4adf-b957-63a49963026c/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8d2927ae-d20a-4adf-b957-63a49963026c/bin/utaipan --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 87d0ba70ff123101875b88252c232be93381362a ................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:23:18,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:23:18,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:23:18,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:23:18,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:23:18,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:23:18,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:23:18,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:23:18,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:23:18,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:23:18,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:23:18,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:23:18,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:23:18,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:23:18,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:23:18,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:23:18,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:23:18,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:23:18,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:23:18,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:23:18,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:23:18,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:23:18,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:23:18,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:23:18,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:23:18,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:23:18,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:23:18,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:23:18,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:23:18,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:23:18,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:23:18,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:23:18,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:23:18,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:23:18,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:23:18,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:23:18,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:23:18,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:23:18,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:23:18,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:23:18,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:23:18,169 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8d2927ae-d20a-4adf-b957-63a49963026c/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-11-30 03:23:18,196 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:23:18,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:23:18,197 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:23:18,198 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:23:18,198 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:23:18,198 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:23:18,198 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 03:23:18,199 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:23:18,199 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:23:18,199 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 03:23:18,200 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 03:23:18,200 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:23:18,200 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 03:23:18,200 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 03:23:18,201 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 03:23:18,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:23:18,202 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 03:23:18,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:23:18,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:23:18,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:23:18,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:23:18,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:23:18,203 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 03:23:18,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:23:18,204 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:23:18,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:23:18,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:23:18,205 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:23:18,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:23:18,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:23:18,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:23:18,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:23:18,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:23:18,207 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 03:23:18,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:23:18,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:23:18,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:23:18,208 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:23:18,208 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-vcloud-master/worker/run_dir_8d2927ae-d20a-4adf-b957-63a49963026c/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8d2927ae-d20a-4adf-b957-63a49963026c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87d0ba70ff123101875b88252c232be93381362a [2020-11-30 03:23:18,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:23:18,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:23:18,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:23:18,484 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:23:18,485 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:23:18,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8d2927ae-d20a-4adf-b957-63a49963026c/bin/utaipan/../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c [2020-11-30 03:23:18,585 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8d2927ae-d20a-4adf-b957-63a49963026c/bin/utaipan/data/91c716f2a/8e025e71ce2344d7a2f75d391669b225/FLAGaf4719743 [2020-11-30 03:23:19,160 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:23:19,161 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8d2927ae-d20a-4adf-b957-63a49963026c/sv-benchmarks/c/termination-numeric/LeUserDefRec.c [2020-11-30 03:23:19,167 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8d2927ae-d20a-4adf-b957-63a49963026c/bin/utaipan/data/91c716f2a/8e025e71ce2344d7a2f75d391669b225/FLAGaf4719743 [2020-11-30 03:23:19,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8d2927ae-d20a-4adf-b957-63a49963026c/bin/utaipan/data/91c716f2a/8e025e71ce2344d7a2f75d391669b225 [2020-11-30 03:23:19,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:23:19,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:23:19,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:23:19,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:23:19,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:23:19,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:23:19" (1/1) ... [2020-11-30 03:23:19,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11bbc526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:23:19, skipping insertion in model container [2020-11-30 03:23:19,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:23:19" (1/1) ... [2020-11-30 03:23:19,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:23:19,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:23:19,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:23:19,760 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:23:19,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:23:19,808 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:23:19,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:23:19 WrapperNode [2020-11-30 03:23:19,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:23:19,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:23:19,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:23:19,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:23:19,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:23:19" (1/1) ... [2020-11-30 03:23:19,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:23:19" (1/1) ... [2020-11-30 03:23:19,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:23:19,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:23:19,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:23:19,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:23:19,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:23:19" (1/1) ... [2020-11-30 03:23:19,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:23:19" (1/1) ... [2020-11-30 03:23:19,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:23:19" (1/1) ... [2020-11-30 03:23:19,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:23:19" (1/1) ... [2020-11-30 03:23:19,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:23:19" (1/1) ... [2020-11-30 03:23:19,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:23:19" (1/1) ... [2020-11-30 03:23:19,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:23:19" (1/1) ... [2020-11-30 03:23:19,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:23:19,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:23:19,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:23:19,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:23:19,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:23:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8d2927ae-d20a-4adf-b957-63a49963026c/bin/utaipan/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 [2020-11-30 03:23:19,959 INFO L130 BoogieDeclarations]: Found specification of procedure le [2020-11-30 03:23:19,960 INFO L138 BoogieDeclarations]: Found implementation of procedure le [2020-11-30 03:23:19,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:23:19,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:23:20,230 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:23:20,231 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-30 03:23:20,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:23:20 BoogieIcfgContainer [2020-11-30 03:23:20,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:23:20,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:23:20,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:23:20,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:23:20,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:23:19" (1/3) ... [2020-11-30 03:23:20,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1003d105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:23:20, skipping insertion in model container [2020-11-30 03:23:20,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:23:19" (2/3) ... [2020-11-30 03:23:20,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1003d105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:23:20, skipping insertion in model container [2020-11-30 03:23:20,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:23:20" (3/3) ... [2020-11-30 03:23:20,245 INFO L111 eAbstractionObserver]: Analyzing ICFG LeUserDefRec.c [2020-11-30 03:23:20,256 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:23:20,260 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-30 03:23:20,271 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-30 03:23:20,307 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:23:20,308 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:23:20,308 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:23:20,308 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:23:20,308 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:23:20,308 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:23:20,309 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:23:20,309 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:23:20,328 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-11-30 03:23:20,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 03:23:20,334 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:23:20,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:23:20,335 INFO L429 AbstractCegarLoop]: === Iteration 1 === [leErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 03:23:20,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:23:20,341 INFO L82 PathProgramCache]: Analyzing trace with hash 306322899, now seen corresponding path program 1 times [2020-11-30 03:23:20,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:23:20,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411437439] [2020-11-30 03:23:20,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:23:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:23:20,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:23:20,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411437439] [2020-11-30 03:23:20,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:23:20,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 03:23:20,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888245573] [2020-11-30 03:23:20,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 03:23:20,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:23:20,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 03:23:20,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:23:20,623 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2020-11-30 03:23:20,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:23:20,786 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2020-11-30 03:23:20,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 03:23:20,788 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-11-30 03:23:20,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:23:20,801 INFO L225 Difference]: With dead ends: 21 [2020-11-30 03:23:20,802 INFO L226 Difference]: Without dead ends: 14 [2020-11-30 03:23:20,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:23:20,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-11-30 03:23:20,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-11-30 03:23:20,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-30 03:23:20,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-11-30 03:23:20,852 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2020-11-30 03:23:20,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:23:20,853 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-11-30 03:23:20,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 03:23:20,853 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-11-30 03:23:20,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 03:23:20,854 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:23:20,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:23:20,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 03:23:20,855 INFO L429 AbstractCegarLoop]: === Iteration 2 === [leErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 03:23:20,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:23:20,866 INFO L82 PathProgramCache]: Analyzing trace with hash 906075314, now seen corresponding path program 1 times [2020-11-30 03:23:20,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:23:20,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595728577] [2020-11-30 03:23:20,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:23:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:23:20,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:23:20,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595728577] [2020-11-30 03:23:20,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:23:20,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:23:20,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700972481] [2020-11-30 03:23:20,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:23:20,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:23:20,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:23:20,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:23:20,902 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 3 states. [2020-11-30 03:23:20,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:23:20,913 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2020-11-30 03:23:20,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:23:20,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-30 03:23:20,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:23:20,914 INFO L225 Difference]: With dead ends: 14 [2020-11-30 03:23:20,914 INFO L226 Difference]: Without dead ends: 13 [2020-11-30 03:23:20,915 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 [2020-11-30 03:23:20,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-30 03:23:20,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-30 03:23:20,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-30 03:23:20,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-11-30 03:23:20,919 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8 [2020-11-30 03:23:20,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:23:20,920 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-30 03:23:20,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:23:20,920 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-11-30 03:23:20,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 03:23:20,921 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:23:20,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:23:20,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 03:23:20,921 INFO L429 AbstractCegarLoop]: === Iteration 3 === [leErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 03:23:20,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:23:20,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1976436299, now seen corresponding path program 1 times [2020-11-30 03:23:20,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:23:20,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136352965] [2020-11-30 03:23:20,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:23:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:23:20,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:23:20,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136352965] [2020-11-30 03:23:20,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:23:20,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 03:23:20,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30641042] [2020-11-30 03:23:20,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 03:23:20,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:23:20,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 03:23:20,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:23:20,983 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2020-11-30 03:23:21,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:23:21,042 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-11-30 03:23:21,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 03:23:21,043 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-30 03:23:21,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:23:21,043 INFO L225 Difference]: With dead ends: 13 [2020-11-30 03:23:21,044 INFO L226 Difference]: Without dead ends: 12 [2020-11-30 03:23:21,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:23:21,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-30 03:23:21,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-30 03:23:21,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-30 03:23:21,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-11-30 03:23:21,048 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2020-11-30 03:23:21,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:23:21,048 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-11-30 03:23:21,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 03:23:21,048 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-11-30 03:23:21,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 03:23:21,049 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:23:21,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:23:21,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 03:23:21,050 INFO L429 AbstractCegarLoop]: === Iteration 4 === [leErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, leErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 03:23:21,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:23:21,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1139983084, now seen corresponding path program 1 times [2020-11-30 03:23:21,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:23:21,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000475170] [2020-11-30 03:23:21,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:23:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:23:21,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:23:21,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000475170] [2020-11-30 03:23:21,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:23:21,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:23:21,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855803940] [2020-11-30 03:23:21,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:23:21,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:23:21,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:23:21,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:23:21,080 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2020-11-30 03:23:21,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:23:21,100 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-11-30 03:23:21,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:23:21,101 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-30 03:23:21,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:23:21,101 INFO L225 Difference]: With dead ends: 12 [2020-11-30 03:23:21,101 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 03:23:21,102 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 [2020-11-30 03:23:21,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 03:23:21,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 03:23:21,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 03:23:21,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 03:23:21,103 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-11-30 03:23:21,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:23:21,103 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 03:23:21,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:23:21,103 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 03:23:21,103 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 03:23:21,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 03:23:21,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 03:23:21,230 INFO L274 CegarLoopResult]: For program point leFINAL(lines 41 47) no Hoare annotation was computed. [2020-11-30 03:23:21,231 INFO L274 CegarLoopResult]: For program point leEXIT(lines 41 47) no Hoare annotation was computed. [2020-11-30 03:23:21,231 INFO L277 CegarLoopResult]: At program point leENTRY(lines 41 47) the Hoare annotation is: true [2020-11-30 03:23:21,231 INFO L274 CegarLoopResult]: For program point leErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2020-11-30 03:23:21,231 INFO L274 CegarLoopResult]: For program point leErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2020-11-30 03:23:21,231 INFO L274 CegarLoopResult]: For program point leErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2020-11-30 03:23:21,232 INFO L274 CegarLoopResult]: For program point leErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2020-11-30 03:23:21,232 INFO L274 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-11-30 03:23:21,232 INFO L274 CegarLoopResult]: For program point L42(lines 42 46) no Hoare annotation was computed. [2020-11-30 03:23:21,232 INFO L274 CegarLoopResult]: For program point L43-1(line 43) no Hoare annotation was computed. [2020-11-30 03:23:21,232 INFO L274 CegarLoopResult]: For program point L43-2(line 43) no Hoare annotation was computed. [2020-11-30 03:23:21,232 INFO L274 CegarLoopResult]: For program point L43-3(line 43) no Hoare annotation was computed. [2020-11-30 03:23:21,233 INFO L270 CegarLoopResult]: At program point L43-4(line 43) the Hoare annotation is: (or (not (<= |le_#in~x| 2147483647)) (and (<= 1 le_~y) (<= le_~y 2147483647) (<= 1 le_~x) (<= le_~x 2147483647)) (not (<= |le_#in~y| 2147483647))) [2020-11-30 03:23:21,233 INFO L274 CegarLoopResult]: For program point L43-5(line 43) no Hoare annotation was computed. [2020-11-30 03:23:21,233 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 03:23:21,233 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 03:23:21,233 INFO L270 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-11-30 03:23:21,233 INFO L274 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-11-30 03:23:21,233 INFO L274 CegarLoopResult]: For program point L26(lines 26 27) no Hoare annotation was computed. [2020-11-30 03:23:21,234 INFO L274 CegarLoopResult]: For program point L23(lines 23 24) no Hoare annotation was computed. [2020-11-30 03:23:21,234 INFO L270 CegarLoopResult]: At program point L21(lines 21 31) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2020-11-30 03:23:21,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:23:21 BoogieIcfgContainer [2020-11-30 03:23:21,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:23:21,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:23:21,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:23:21,285 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:23:21,286 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:23:20" (3/4) ... [2020-11-30 03:23:21,290 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 03:23:21,296 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure le [2020-11-30 03:23:21,301 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-30 03:23:21,302 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-30 03:23:21,410 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8d2927ae-d20a-4adf-b957-63a49963026c/bin/utaipan/witness.graphml [2020-11-30 03:23:21,426 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:23:21,428 INFO L168 Benchmark]: Toolchain (without parser) took 1870.91 ms. Allocated memory was 104.9 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Free memory was 76.4 MB in the beginning and 94.6 MB in the end (delta: -18.2 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2020-11-30 03:23:21,429 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 104.9 MB. Free memory is still 60.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:23:21,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.66 ms. Allocated memory is still 104.9 MB. Free memory was 76.2 MB in the beginning and 82.3 MB in the end (delta: -6.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 03:23:21,431 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.34 ms. Allocated memory is still 104.9 MB. Free memory was 82.3 MB in the beginning and 81.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:23:21,432 INFO L168 Benchmark]: Boogie Preprocessor took 27.78 ms. Allocated memory is still 104.9 MB. Free memory was 81.0 MB in the beginning and 80.2 MB in the end (delta: 810.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:23:21,433 INFO L168 Benchmark]: RCFGBuilder took 348.34 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 69.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 03:23:21,434 INFO L168 Benchmark]: TraceAbstraction took 1050.10 ms. Allocated memory was 104.9 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Free memory was 69.2 MB in the beginning and 96.7 MB in the end (delta: -27.5 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-11-30 03:23:21,435 INFO L168 Benchmark]: Witness Printer took 140.93 ms. Allocated memory is still 142.6 MB. Free memory was 96.7 MB in the beginning and 94.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:23:21,440 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 104.9 MB. Free memory is still 60.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 253.66 ms. Allocated memory is still 104.9 MB. Free memory was 76.2 MB in the beginning and 82.3 MB in the end (delta: -6.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.34 ms. Allocated memory is still 104.9 MB. Free memory was 82.3 MB in the beginning and 81.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.78 ms. Allocated memory is still 104.9 MB. Free memory was 81.0 MB in the beginning and 80.2 MB in the end (delta: 810.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 348.34 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 69.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1050.10 ms. Allocated memory was 104.9 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Free memory was 69.2 MB in the beginning and 96.7 MB in the end (delta: -27.5 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Witness Printer took 140.93 ms. Allocated memory is still 142.6 MB. Free memory was 96.7 MB in the beginning and 94.6 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: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 42 SDslu, 36 SDs, 0 SdLazy, 47 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 33 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 514 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...