./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ............................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 05:09:18,141 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:09:18,142 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:09:18,150 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:09:18,150 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:09:18,151 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:09:18,152 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:09:18,153 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:09:18,154 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:09:18,155 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:09:18,155 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:09:18,155 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:09:18,156 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:09:18,156 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:09:18,157 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:09:18,158 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:09:18,158 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:09:18,159 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:09:18,160 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:09:18,161 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:09:18,162 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:09:18,163 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:09:18,164 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:09:18,164 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:09:18,164 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:09:18,165 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:09:18,166 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:09:18,166 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:09:18,167 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:09:18,168 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:09:18,168 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:09:18,168 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:09:18,169 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:09:18,169 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:09:18,169 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:09:18,170 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:09:18,170 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 05:09:18,179 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:09:18,180 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:09:18,180 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 05:09:18,180 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 05:09:18,181 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 05:09:18,181 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 05:09:18,181 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 05:09:18,181 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 05:09:18,181 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 05:09:18,181 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 05:09:18,181 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 05:09:18,181 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 05:09:18,182 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 05:09:18,182 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:09:18,182 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 05:09:18,182 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 05:09:18,183 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 05:09:18,183 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:09:18,183 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 05:09:18,183 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 05:09:18,183 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 05:09:18,183 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 05:09:18,183 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:09:18,183 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:09:18,183 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 05:09:18,184 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:09:18,184 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 05:09:18,184 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 05:09:18,184 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 05:09:18,184 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:09:18,184 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:09:18,185 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 05:09:18,185 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 05:09:18,185 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 05:09:18,185 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 05:09:18,185 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 05:09:18,185 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 05:09:18,185 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/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 ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2018-11-23 05:09:18,209 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:09:18,218 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:09:18,220 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:09:18,222 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:09:18,222 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:09:18,222 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-11-23 05:09:18,264 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/data/080b224ba/61f5aa725b774ea486e6139ef0ab540a/FLAG91e0bc24a [2018-11-23 05:09:18,657 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:09:18,658 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-11-23 05:09:18,662 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/data/080b224ba/61f5aa725b774ea486e6139ef0ab540a/FLAG91e0bc24a [2018-11-23 05:09:18,671 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/data/080b224ba/61f5aa725b774ea486e6139ef0ab540a [2018-11-23 05:09:18,674 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:09:18,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:09:18,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:09:18,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:09:18,678 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:09:18,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:09:18" (1/1) ... [2018-11-23 05:09:18,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d610604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:18, skipping insertion in model container [2018-11-23 05:09:18,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:09:18" (1/1) ... [2018-11-23 05:09:18,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:09:18,698 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:09:18,803 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:09:18,805 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 05:09:18,815 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:09:18,823 INFO L195 MainTranslator]: Completed translation [2018-11-23 05:09:18,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:18 WrapperNode [2018-11-23 05:09:18,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 05:09:18,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 05:09:18,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 05:09:18,824 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 05:09:18,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:18" (1/1) ... [2018-11-23 05:09:18,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:18" (1/1) ... [2018-11-23 05:09:18,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 05:09:18,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 05:09:18,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 05:09:18,837 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 05:09:18,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:18" (1/1) ... [2018-11-23 05:09:18,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:18" (1/1) ... [2018-11-23 05:09:18,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:18" (1/1) ... [2018-11-23 05:09:18,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:18" (1/1) ... [2018-11-23 05:09:18,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:18" (1/1) ... [2018-11-23 05:09:18,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:18" (1/1) ... [2018-11-23 05:09:18,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:18" (1/1) ... [2018-11-23 05:09:18,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 05:09:18,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 05:09:18,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 05:09:18,848 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 05:09:18,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/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 [2018-11-23 05:09:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 05:09:18,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 05:09:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 05:09:18,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 05:09:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 05:09:18,920 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 05:09:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2018-11-23 05:09:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2018-11-23 05:09:19,008 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 05:09:19,008 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 05:09:19,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:09:19 BoogieIcfgContainer [2018-11-23 05:09:19,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 05:09:19,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 05:09:19,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 05:09:19,010 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 05:09:19,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:09:18" (1/3) ... [2018-11-23 05:09:19,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa5269c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:09:19, skipping insertion in model container [2018-11-23 05:09:19,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:18" (2/3) ... [2018-11-23 05:09:19,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa5269c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:09:19, skipping insertion in model container [2018-11-23 05:09:19,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:09:19" (3/3) ... [2018-11-23 05:09:19,013 INFO L112 eAbstractionObserver]: Analyzing ICFG float3_true-unreach-call_true-termination.i [2018-11-23 05:09:19,020 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 05:09:19,024 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 05:09:19,032 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 05:09:19,050 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 05:09:19,050 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 05:09:19,050 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 05:09:19,050 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 05:09:19,050 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 05:09:19,051 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 05:09:19,051 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 05:09:19,051 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 05:09:19,065 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-23 05:09:19,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 05:09:19,069 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:09:19,069 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:09:19,071 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:09:19,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:09:19,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1639801167, now seen corresponding path program 1 times [2018-11-23 05:09:19,075 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:09:19,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:09:19,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:09:19,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:09:19,104 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:09:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:09:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:09:19,143 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|old(~d~0)|=1.0, ~d~0=1.0] [?] ~d~0 := 0.0; VAL [|old(~d~0)|=1.0, ~d~0=0.0] [?] assume true; VAL [|old(~d~0)|=1.0, ~d~0=0.0] [?] RET #26#return; VAL [~d~0=0.0] [?] CALL call #t~ret1 := main(); VAL [|old(~d~0)|=0.0, ~d~0=0.0] [?] ~x~0 := 2;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; VAL [main_~x~0=2, |main_#t~nondet0|=1, |old(~d~0)|=0.0, ~d~0=0.0] [?] assume 0 != #t~nondet0;havoc #t~nondet0;~x~0 := 4; VAL [main_~x~0=4, |old(~d~0)|=0.0, ~d~0=0.0] [?] CALL call f1(); VAL [|old(~d~0)|=0.0, ~d~0=0.0] [?] ~d~0 := 1.0; VAL [|old(~d~0)|=0.0, ~d~0=1.0] [?] assume true; VAL [|old(~d~0)|=0.0, ~d~0=1.0] [?] RET #30#return; VAL [main_~x~0=4, |old(~d~0)|=0.0, ~d~0=1.0] [?] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if 2 == ~x~0 then 1 else 0)));~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if ~x~0 > 3 then 1 else 0))); VAL [main_~x~0=4, |old(~d~0)|=0.0] [?] assume !~someBinaryDOUBLEComparisonOperation(~d~0, 2.0); VAL [main_~x~0=4, |old(~d~0)|=0.0] [?] assume !false; VAL [main_~x~0=4, |old(~d~0)|=0.0] [?] CALL call ULTIMATE.init(); VAL [old(~d~0)=1.0, ~d~0=1.0] [L4] ~d~0 := 0.0; VAL [old(~d~0)=1.0, ~d~0=0.0] [?] ensures true; VAL [old(~d~0)=1.0, ~d~0=0.0] [?] RET call ULTIMATE.init(); VAL [~d~0=0.0] [?] CALL call #t~ret1 := main(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L13] ~x~0 := 2; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; VAL [#t~nondet0=1, old(~d~0)=0.0, ~d~0=0.0, ~x~0=2] [L15-L16] assume 0 != #t~nondet0; [L15] havoc #t~nondet0; [L16] ~x~0 := 4; VAL [old(~d~0)=0.0, ~d~0=0.0, ~x~0=4] [L18] CALL call f1(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L8] ~d~0 := 1.0; VAL [old(~d~0)=0.0, ~d~0=1.0] [L6-L9] ensures true; VAL [old(~d~0)=0.0, ~d~0=1.0] [L18] RET call f1(); VAL [old(~d~0)=0.0, ~d~0=1.0, ~x~0=4] [L20] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if 2 == ~x~0 then 1 else 0))); [L22] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if ~x~0 > 3 then 1 else 0))); VAL [old(~d~0)=0.0, ~x~0=4] [L24] assume !~someBinaryDOUBLEComparisonOperation(~d~0, 2.0); VAL [old(~d~0)=0.0, ~x~0=4] [L24] assert false; VAL [old(~d~0)=0.0, ~x~0=4] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [old(~d~0)=1.0, ~d~0=1.0] [L4] ~d~0 := 0.0; VAL [old(~d~0)=1.0, ~d~0=0.0] [?] ensures true; VAL [old(~d~0)=1.0, ~d~0=0.0] [?] RET call ULTIMATE.init(); VAL [~d~0=0.0] [?] CALL call #t~ret1 := main(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L13] ~x~0 := 2; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; VAL [#t~nondet0=1, old(~d~0)=0.0, ~d~0=0.0, ~x~0=2] [L15-L16] assume 0 != #t~nondet0; [L15] havoc #t~nondet0; [L16] ~x~0 := 4; VAL [old(~d~0)=0.0, ~d~0=0.0, ~x~0=4] [L18] CALL call f1(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L8] ~d~0 := 1.0; VAL [old(~d~0)=0.0, ~d~0=1.0] [L6-L9] ensures true; VAL [old(~d~0)=0.0, ~d~0=1.0] [L18] RET call f1(); VAL [old(~d~0)=0.0, ~d~0=1.0, ~x~0=4] [L20] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if 2 == ~x~0 then 1 else 0))); [L22] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if ~x~0 > 3 then 1 else 0))); VAL [old(~d~0)=0.0, ~x~0=4] [L24] assume !~someBinaryDOUBLEComparisonOperation(~d~0, 2.0); VAL [old(~d~0)=0.0, ~x~0=4] [L24] assert false; VAL [old(~d~0)=0.0, ~x~0=4] [?] CALL call ULTIMATE.init(); VAL [old(~d~0)=1.0, ~d~0=1.0] [L4] ~d~0 := 0.0; VAL [old(~d~0)=1.0, ~d~0=0.0] [?] RET call ULTIMATE.init(); VAL [~d~0=0.0] [?] CALL call #t~ret1 := main(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L13] ~x~0 := 2; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; VAL [#t~nondet0=1, old(~d~0)=0.0, ~d~0=0.0, ~x~0=2] [L15-L16] COND TRUE 0 != #t~nondet0 [L15] havoc #t~nondet0; [L16] ~x~0 := 4; VAL [old(~d~0)=0.0, ~d~0=0.0, ~x~0=4] [L18] CALL call f1(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L8] ~d~0 := 1.0; VAL [old(~d~0)=0.0, ~d~0=1.0] [L18] RET call f1(); VAL [old(~d~0)=0.0, ~d~0=1.0, ~x~0=4] [L20] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if 2 == ~x~0 then 1 else 0))); [L22] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if ~x~0 > 3 then 1 else 0))); VAL [old(~d~0)=0.0, ~x~0=4] [L24] COND TRUE !~someBinaryDOUBLEComparisonOperation(~d~0, 2.0) VAL [old(~d~0)=0.0, ~x~0=4] [L24] assert false; VAL [old(~d~0)=0.0, ~x~0=4] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [old(~d~0)=1.0, ~d~0=1.0] [L4] ~d~0 := 0.0; VAL [old(~d~0)=1.0, ~d~0=0.0] [?] RET call ULTIMATE.init(); VAL [~d~0=0.0] [?] CALL call #t~ret1 := main(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L13] ~x~0 := 2; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; VAL [#t~nondet0=1, old(~d~0)=0.0, ~d~0=0.0, ~x~0=2] [L15-L16] COND TRUE 0 != #t~nondet0 [L15] havoc #t~nondet0; [L16] ~x~0 := 4; VAL [old(~d~0)=0.0, ~d~0=0.0, ~x~0=4] [L18] CALL call f1(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L8] ~d~0 := 1.0; VAL [old(~d~0)=0.0, ~d~0=1.0] [L18] RET call f1(); VAL [old(~d~0)=0.0, ~d~0=1.0, ~x~0=4] [L20] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if 2 == ~x~0 then 1 else 0))); [L22] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if ~x~0 > 3 then 1 else 0))); VAL [old(~d~0)=0.0, ~x~0=4] [L24] COND TRUE !~someBinaryDOUBLEComparisonOperation(~d~0, 2.0) VAL [old(~d~0)=0.0, ~x~0=4] [L24] assert false; VAL [old(~d~0)=0.0, ~x~0=4] [?] CALL call ULTIMATE.init(); VAL [old(~d~0)=1.0, ~d~0=1.0] [L4] ~d~0 := 0.0; VAL [old(~d~0)=1.0, ~d~0=0.0] [?] RET call ULTIMATE.init(); VAL [~d~0=0.0] [?] CALL call #t~ret1 := main(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L13] ~x~0 := 2; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; VAL [#t~nondet0=1, old(~d~0)=0.0, ~d~0=0.0, ~x~0=2] [L15-L16] COND TRUE 0 != #t~nondet0 [L15] havoc #t~nondet0; [L16] ~x~0 := 4; VAL [old(~d~0)=0.0, ~d~0=0.0, ~x~0=4] [L18] CALL call f1(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L8] ~d~0 := 1.0; VAL [old(~d~0)=0.0, ~d~0=1.0] [L18] RET call f1(); VAL [old(~d~0)=0.0, ~d~0=1.0, ~x~0=4] [L20] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if 2 == ~x~0 then 1 else 0))); [L22] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if ~x~0 > 3 then 1 else 0))); VAL [old(~d~0)=0.0, ~x~0=4] [L24] COND TRUE !~someBinaryDOUBLEComparisonOperation(~d~0, 2.0) VAL [old(~d~0)=0.0, ~x~0=4] [L24] assert false; VAL [old(~d~0)=0.0, ~x~0=4] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [old(~d~0)=1.0, ~d~0=1.0] [L4] ~d~0 := 0.0; VAL [old(~d~0)=1.0, ~d~0=0.0] [?] RET call ULTIMATE.init(); VAL [~d~0=0.0] [?] CALL call #t~ret1 := main(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L13] ~x~0 := 2; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; VAL [#t~nondet0=1, old(~d~0)=0.0, ~d~0=0.0, ~x~0=2] [L15-L16] COND TRUE 0 != #t~nondet0 [L15] havoc #t~nondet0; [L16] ~x~0 := 4; VAL [old(~d~0)=0.0, ~d~0=0.0, ~x~0=4] [L18] CALL call f1(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L8] ~d~0 := 1.0; VAL [old(~d~0)=0.0, ~d~0=1.0] [L18] RET call f1(); VAL [old(~d~0)=0.0, ~d~0=1.0, ~x~0=4] [L20] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if 2 == ~x~0 then 1 else 0))); [L22] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if ~x~0 > 3 then 1 else 0))); VAL [old(~d~0)=0.0, ~x~0=4] [L24] COND TRUE !~someBinaryDOUBLEComparisonOperation(~d~0, 2.0) VAL [old(~d~0)=0.0, ~x~0=4] [L24] assert false; VAL [old(~d~0)=0.0, ~x~0=4] [L4] double d = 0.0; VAL [\old(d)=1, d=0] [L13] int x = 2; [L15] COND TRUE __VERIFIER_nondet_int() [L16] x = 4 VAL [\old(d)=0, d=0, x=4] [L18] CALL f1() VAL [\old(d)=0, d=0] [L8] d = 1.0 VAL [\old(d)=0, d=1] [L18] RET f1() VAL [\old(d)=0, d=1, x=4] [L20] d += (x == 2) [L22] d += (x > 3) VAL [\old(d)=0, x=4] [L24] COND TRUE !(d == 2.0) VAL [\old(d)=0, x=4] [L24] __VERIFIER_error() VAL [\old(d)=0, x=4] ----- [2018-11-23 05:09:19,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:09:19 BoogieIcfgContainer [2018-11-23 05:09:19,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 05:09:19,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 05:09:19,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 05:09:19,163 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 05:09:19,164 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:09:19" (3/4) ... [2018-11-23 05:09:19,166 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 05:09:19,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 05:09:19,166 INFO L168 Benchmark]: Toolchain (without parser) took 491.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:09:19,167 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:09:19,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.46 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:09:19,168 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.84 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:09:19,169 INFO L168 Benchmark]: Boogie Preprocessor took 10.72 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:09:19,169 INFO L168 Benchmark]: RCFGBuilder took 160.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:09:19,169 INFO L168 Benchmark]: TraceAbstraction took 154.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-11-23 05:09:19,170 INFO L168 Benchmark]: Witness Printer took 2.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:09:19,172 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 148.46 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.84 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.72 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 160.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 154.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 24]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 24, overapproximation of someBinaryArithmeticDOUBLEoperation at line 20. Possible FailurePath: [L4] double d = 0.0; VAL [\old(d)=1, d=0] [L13] int x = 2; [L15] COND TRUE __VERIFIER_nondet_int() [L16] x = 4 VAL [\old(d)=0, d=0, x=4] [L18] CALL f1() VAL [\old(d)=0, d=0] [L8] d = 1.0 VAL [\old(d)=0, d=1] [L18] RET f1() VAL [\old(d)=0, d=1, x=4] [L20] d += (x == 2) [L22] d += (x > 3) VAL [\old(d)=0, x=4] [L24] COND TRUE !(d == 2.0) VAL [\old(d)=0, x=4] [L24] __VERIFIER_error() VAL [\old(d)=0, x=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 05:09:20,577 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:09:20,578 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:09:20,585 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:09:20,585 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:09:20,586 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:09:20,586 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:09:20,588 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:09:20,589 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:09:20,589 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:09:20,590 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:09:20,590 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:09:20,591 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:09:20,591 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:09:20,592 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:09:20,593 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:09:20,593 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:09:20,594 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:09:20,596 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:09:20,597 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:09:20,597 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:09:20,598 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:09:20,600 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:09:20,600 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:09:20,600 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:09:20,601 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:09:20,602 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:09:20,602 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:09:20,603 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:09:20,603 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:09:20,603 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:09:20,604 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:09:20,604 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:09:20,604 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:09:20,605 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:09:20,605 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:09:20,606 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 05:09:20,616 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:09:20,616 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:09:20,617 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 05:09:20,617 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 05:09:20,617 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 05:09:20,617 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 05:09:20,617 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 05:09:20,617 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 05:09:20,618 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 05:09:20,618 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 05:09:20,618 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:09:20,618 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 05:09:20,618 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 05:09:20,619 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:09:20,619 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 05:09:20,619 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 05:09:20,619 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 05:09:20,619 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 05:09:20,619 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 05:09:20,619 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 05:09:20,619 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:09:20,620 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:09:20,620 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 05:09:20,620 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:09:20,620 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 05:09:20,620 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 05:09:20,620 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 05:09:20,620 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:09:20,621 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:09:20,621 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 05:09:20,621 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 05:09:20,621 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 05:09:20,621 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 05:09:20,621 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 05:09:20,621 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 05:09:20,621 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/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 ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2018-11-23 05:09:20,649 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:09:20,657 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:09:20,659 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:09:20,660 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:09:20,660 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:09:20,661 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-11-23 05:09:20,694 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/data/88150bba0/0e31554ea59745b38076d8df3aa20a4d/FLAGe804fd71f [2018-11-23 05:09:21,081 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:09:21,082 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-11-23 05:09:21,085 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/data/88150bba0/0e31554ea59745b38076d8df3aa20a4d/FLAGe804fd71f [2018-11-23 05:09:21,094 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/data/88150bba0/0e31554ea59745b38076d8df3aa20a4d [2018-11-23 05:09:21,096 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:09:21,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:09:21,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:09:21,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:09:21,100 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:09:21,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:09:21" (1/1) ... [2018-11-23 05:09:21,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@622bc2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:21, skipping insertion in model container [2018-11-23 05:09:21,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:09:21" (1/1) ... [2018-11-23 05:09:21,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:09:21,120 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:09:21,227 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:09:21,232 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 05:09:21,245 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:09:21,254 INFO L195 MainTranslator]: Completed translation [2018-11-23 05:09:21,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:21 WrapperNode [2018-11-23 05:09:21,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 05:09:21,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 05:09:21,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 05:09:21,255 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 05:09:21,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:21" (1/1) ... [2018-11-23 05:09:21,267 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:21" (1/1) ... [2018-11-23 05:09:21,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 05:09:21,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 05:09:21,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 05:09:21,272 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 05:09:21,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:21" (1/1) ... [2018-11-23 05:09:21,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:21" (1/1) ... [2018-11-23 05:09:21,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:21" (1/1) ... [2018-11-23 05:09:21,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:21" (1/1) ... [2018-11-23 05:09:21,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:21" (1/1) ... [2018-11-23 05:09:21,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:21" (1/1) ... [2018-11-23 05:09:21,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:21" (1/1) ... [2018-11-23 05:09:21,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 05:09:21,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 05:09:21,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 05:09:21,288 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 05:09:21,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/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 [2018-11-23 05:09:21,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 05:09:21,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 05:09:21,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 05:09:21,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 05:09:21,370 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 05:09:21,371 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 05:09:21,371 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2018-11-23 05:09:21,371 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2018-11-23 05:09:22,288 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 05:09:22,288 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 05:09:22,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:09:22 BoogieIcfgContainer [2018-11-23 05:09:22,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 05:09:22,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 05:09:22,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 05:09:22,291 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 05:09:22,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:09:21" (1/3) ... [2018-11-23 05:09:22,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350ee843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:09:22, skipping insertion in model container [2018-11-23 05:09:22,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:21" (2/3) ... [2018-11-23 05:09:22,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350ee843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:09:22, skipping insertion in model container [2018-11-23 05:09:22,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:09:22" (3/3) ... [2018-11-23 05:09:22,293 INFO L112 eAbstractionObserver]: Analyzing ICFG float3_true-unreach-call_true-termination.i [2018-11-23 05:09:22,299 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 05:09:22,303 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 05:09:22,313 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 05:09:22,331 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 05:09:22,332 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 05:09:22,332 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 05:09:22,332 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 05:09:22,332 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 05:09:22,332 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 05:09:22,332 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 05:09:22,333 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 05:09:22,333 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 05:09:22,347 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-23 05:09:22,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 05:09:22,351 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:09:22,351 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:09:22,353 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:09:22,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:09:22,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1639801167, now seen corresponding path program 1 times [2018-11-23 05:09:22,359 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 05:09:22,359 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-23 05:09:22,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:09:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:09:22,518 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:09:22,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:09:22,592 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 05:09:22,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:09:22,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 05:09:22,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 05:09:22,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 05:09:22,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 05:09:22,613 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 6 states. [2018-11-23 05:09:24,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:09:24,334 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2018-11-23 05:09:24,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 05:09:24,336 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-11-23 05:09:24,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:09:24,341 INFO L225 Difference]: With dead ends: 30 [2018-11-23 05:09:24,342 INFO L226 Difference]: Without dead ends: 15 [2018-11-23 05:09:24,344 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-23 05:09:24,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-23 05:09:24,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-23 05:09:24,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-23 05:09:24,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-11-23 05:09:24,366 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2018-11-23 05:09:24,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:09:24,366 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-11-23 05:09:24,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 05:09:24,366 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-11-23 05:09:24,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 05:09:24,367 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:09:24,367 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:09:24,370 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:09:24,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:09:24,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1845819503, now seen corresponding path program 1 times [2018-11-23 05:09:24,371 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 05:09:24,371 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-23 05:09:24,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:09:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:09:24,526 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:09:24,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:09:24,562 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 05:09:24,571 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:09:24,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 05:09:24,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 05:09:24,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 05:09:24,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 05:09:24,573 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 6 states. [2018-11-23 05:09:25,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:09:25,573 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2018-11-23 05:09:25,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 05:09:25,573 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-11-23 05:09:25,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:09:25,575 INFO L225 Difference]: With dead ends: 15 [2018-11-23 05:09:25,575 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 05:09:25,576 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-23 05:09:25,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 05:09:25,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 05:09:25,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 05:09:25,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 05:09:25,576 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-23 05:09:25,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:09:25,577 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 05:09:25,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 05:09:25,577 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 05:09:25,577 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 05:09:25,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 05:09:25,617 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 05:09:25,617 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 05:09:25,617 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 05:09:25,617 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 05:09:25,617 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 05:09:25,618 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 05:09:25,618 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 05:09:25,618 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 11 25) the Hoare annotation is: true [2018-11-23 05:09:25,618 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 24) no Hoare annotation was computed. [2018-11-23 05:09:25,618 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 25) no Hoare annotation was computed. [2018-11-23 05:09:25,618 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-11-23 05:09:25,618 INFO L448 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-11-23 05:09:25,618 INFO L448 ceAbstractionStarter]: For program point L24-3(lines 11 25) no Hoare annotation was computed. [2018-11-23 05:09:25,619 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-23 05:09:25,619 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 16) no Hoare annotation was computed. [2018-11-23 05:09:25,619 INFO L444 ceAbstractionStarter]: At program point L15-2(lines 15 16) the Hoare annotation is: (or (= (bvadd main_~x~0 (_ bv4294967292 32)) (_ bv0 32)) (= (bvadd main_~x~0 (_ bv4294967294 32)) (_ bv0 32))) [2018-11-23 05:09:25,619 INFO L448 ceAbstractionStarter]: For program point f1FINAL(lines 6 9) no Hoare annotation was computed. [2018-11-23 05:09:25,619 INFO L448 ceAbstractionStarter]: For program point f1EXIT(lines 6 9) no Hoare annotation was computed. [2018-11-23 05:09:25,619 INFO L451 ceAbstractionStarter]: At program point f1ENTRY(lines 6 9) the Hoare annotation is: true [2018-11-23 05:09:25,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:09:25 BoogieIcfgContainer [2018-11-23 05:09:25,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 05:09:25,621 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 05:09:25,621 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 05:09:25,621 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 05:09:25,622 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:09:22" (3/4) ... [2018-11-23 05:09:25,624 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 05:09:25,628 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 05:09:25,629 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 05:09:25,629 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2018-11-23 05:09:25,631 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 05:09:25,631 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 05:09:25,654 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2272b828-6ec1-43ae-8b00-69111f1556ea/bin-2019/utaipan/witness.graphml [2018-11-23 05:09:25,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 05:09:25,655 INFO L168 Benchmark]: Toolchain (without parser) took 4558.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -115.3 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. [2018-11-23 05:09:25,656 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:09:25,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.00 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:09:25,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.39 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:09:25,657 INFO L168 Benchmark]: Boogie Preprocessor took 15.41 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:09:25,657 INFO L168 Benchmark]: RCFGBuilder took 1000.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2018-11-23 05:09:25,658 INFO L168 Benchmark]: TraceAbstraction took 3331.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 50.0 MB). Peak memory consumption was 50.0 MB. Max. memory is 11.5 GB. [2018-11-23 05:09:25,658 INFO L168 Benchmark]: Witness Printer took 33.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-23 05:09:25,660 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 157.00 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.39 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.41 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1000.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3331.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 50.0 MB). Peak memory consumption was 50.0 MB. Max. memory is 11.5 GB. * Witness Printer took 33.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 2.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 8 SDslu, 64 SDs, 0 SdLazy, 29 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 16 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 1326 SizeOfPredicates, 4 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...