./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4e4f711715c9ba9b74051d365fc69961816436d0 .............................................................................................................................................................................................................................. 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_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4e4f711715c9ba9b74051d365fc69961816436d0 ......................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:51:02,061 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:51:02,062 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:51:02,070 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:51:02,070 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:51:02,071 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:51:02,072 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:51:02,073 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:51:02,074 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:51:02,075 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:51:02,075 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:51:02,075 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:51:02,076 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:51:02,077 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:51:02,077 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:51:02,078 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:51:02,078 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:51:02,080 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:51:02,081 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:51:02,082 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:51:02,083 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:51:02,083 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:51:02,085 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:51:02,085 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:51:02,085 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:51:02,086 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:51:02,087 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:51:02,087 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:51:02,088 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:51:02,088 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:51:02,089 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:51:02,089 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:51:02,089 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:51:02,089 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:51:02,090 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:51:02,090 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:51:02,091 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 11:51:02,101 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:51:02,101 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:51:02,101 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:51:02,102 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 11:51:02,102 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:51:02,102 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:51:02,102 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:51:02,103 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:51:02,103 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:51:02,103 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:51:02,103 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:51:02,103 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:51:02,103 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:51:02,103 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:51:02,103 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:51:02,104 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:51:02,104 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:51:02,104 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:51:02,104 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:51:02,104 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:51:02,104 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:51:02,104 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:51:02,105 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:51:02,105 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:51:02,105 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:51:02,105 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:51:02,105 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:51:02,105 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:51:02,105 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:51:02,106 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:51:02,106 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_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e4f711715c9ba9b74051d365fc69961816436d0 [2018-11-18 11:51:02,129 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:51:02,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:51:02,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:51:02,141 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:51:02,141 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:51:02,141 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-11-18 11:51:02,175 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/data/1bf6836a5/ffa2280f6c5246a2b6261f21ee43eb4c/FLAG37df670a1 [2018-11-18 11:51:02,569 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:51:02,569 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-11-18 11:51:02,574 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/data/1bf6836a5/ffa2280f6c5246a2b6261f21ee43eb4c/FLAG37df670a1 [2018-11-18 11:51:02,583 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/data/1bf6836a5/ffa2280f6c5246a2b6261f21ee43eb4c [2018-11-18 11:51:02,585 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:51:02,586 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 11:51:02,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:51:02,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:51:02,588 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:51:02,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:51:02" (1/1) ... [2018-11-18 11:51:02,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d7ab956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:02, skipping insertion in model container [2018-11-18 11:51:02,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:51:02" (1/1) ... [2018-11-18 11:51:02,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:51:02,608 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:51:02,706 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:51:02,709 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:51:02,717 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:51:02,724 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:51:02,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:02 WrapperNode [2018-11-18 11:51:02,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:51:02,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:51:02,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:51:02,725 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:51:02,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:02" (1/1) ... [2018-11-18 11:51:02,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:02" (1/1) ... [2018-11-18 11:51:02,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:02" (1/1) ... [2018-11-18 11:51:02,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:02" (1/1) ... [2018-11-18 11:51:02,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:02" (1/1) ... [2018-11-18 11:51:02,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:02" (1/1) ... [2018-11-18 11:51:02,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:02" (1/1) ... [2018-11-18 11:51:02,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:51:02,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:51:02,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:51:02,740 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:51:02,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:51:02,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:51:02,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:51:02,807 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:51:02,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 11:51:02,808 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:51:02,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:51:02,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:51:02,871 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:51:02,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:51:02 BoogieIcfgContainer [2018-11-18 11:51:02,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:51:02,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:51:02,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:51:02,874 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:51:02,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:51:02" (1/3) ... [2018-11-18 11:51:02,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6758344d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:51:02, skipping insertion in model container [2018-11-18 11:51:02,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:02" (2/3) ... [2018-11-18 11:51:02,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6758344d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:51:02, skipping insertion in model container [2018-11-18 11:51:02,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:51:02" (3/3) ... [2018-11-18 11:51:02,876 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp3_true-unreach-call_true-termination.i [2018-11-18 11:51:02,882 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:51:02,886 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:51:02,894 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:51:02,911 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:51:02,912 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:51:02,912 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:51:02,912 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:51:02,912 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:51:02,912 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:51:02,912 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:51:02,912 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:51:02,912 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:51:02,921 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-18 11:51:02,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 11:51:02,924 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:02,925 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:02,926 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:51:02,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:02,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-18 11:51:02,931 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:51:02,931 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:51:02,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:02,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:02,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:51:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:51:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:51:02,986 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 11:51:02,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:51:02 BoogieIcfgContainer [2018-11-18 11:51:02,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:51:02,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:51:02,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:51:02,995 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:51:02,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:51:02" (3/4) ... [2018-11-18 11:51:02,997 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 11:51:02,997 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:51:02,998 INFO L168 Benchmark]: Toolchain (without parser) took 412.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -127.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:51:02,999 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:51:03,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.53 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:51:03,000 INFO L168 Benchmark]: Boogie Preprocessor took 14.84 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:51:03,001 INFO L168 Benchmark]: RCFGBuilder took 131.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -148.9 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:51:03,001 INFO L168 Benchmark]: TraceAbstraction took 121.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:51:03,001 INFO L168 Benchmark]: Witness Printer took 3.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:51:03,003 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 138.53 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.84 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 131.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -148.9 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 121.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.18 ms. Allocated memory is still 1.1 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: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 8, overapproximation of someBinaryArithmeticFLOAToperation at line 6. Possible FailurePath: [L6] float fs1=2.0f/6.0f; [L7] float fs2=fs1*6.0f; [L8] COND TRUE !((int)fs2==2) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. UNSAFE Result, 0.0s 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=12occurred 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, 7 NumberOfCodeBlocks, 7 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 0.1.23-5842f4b [2018-11-18 11:51:04,380 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:51:04,381 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:51:04,390 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:51:04,390 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:51:04,391 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:51:04,392 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:51:04,393 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:51:04,394 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:51:04,394 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:51:04,395 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:51:04,395 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:51:04,396 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:51:04,396 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:51:04,397 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:51:04,398 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:51:04,398 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:51:04,399 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:51:04,401 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:51:04,402 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:51:04,402 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:51:04,403 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:51:04,405 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:51:04,405 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:51:04,405 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:51:04,406 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:51:04,406 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:51:04,407 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:51:04,407 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:51:04,408 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:51:04,408 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:51:04,409 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:51:04,409 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:51:04,409 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:51:04,410 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:51:04,410 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:51:04,410 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 11:51:04,420 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:51:04,420 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:51:04,421 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:51:04,421 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 11:51:04,422 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:51:04,422 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:51:04,422 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:51:04,422 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:51:04,422 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:51:04,423 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:51:04,423 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:51:04,423 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:51:04,423 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:51:04,423 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:51:04,423 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 11:51:04,423 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 11:51:04,424 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:51:04,424 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:51:04,424 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:51:04,424 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:51:04,424 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:51:04,424 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:51:04,424 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:51:04,425 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:51:04,425 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:51:04,425 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:51:04,425 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:51:04,425 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:51:04,425 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 11:51:04,425 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:51:04,426 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 11:51:04,426 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 11:51:04,426 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_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e4f711715c9ba9b74051d365fc69961816436d0 [2018-11-18 11:51:04,455 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:51:04,464 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:51:04,466 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:51:04,467 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:51:04,468 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:51:04,468 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-11-18 11:51:04,510 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/data/43a9f67f9/fe484452a25a4502a99ae8b29b630455/FLAG54f04f0b3 [2018-11-18 11:51:04,894 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:51:04,894 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-11-18 11:51:04,898 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/data/43a9f67f9/fe484452a25a4502a99ae8b29b630455/FLAG54f04f0b3 [2018-11-18 11:51:04,907 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/data/43a9f67f9/fe484452a25a4502a99ae8b29b630455 [2018-11-18 11:51:04,910 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:51:04,911 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 11:51:04,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:51:04,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:51:04,914 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:51:04,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:51:04" (1/1) ... [2018-11-18 11:51:04,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3386d718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:04, skipping insertion in model container [2018-11-18 11:51:04,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:51:04" (1/1) ... [2018-11-18 11:51:04,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:51:04,932 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:51:05,044 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:51:05,048 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:51:05,056 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:51:05,068 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:51:05,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:05 WrapperNode [2018-11-18 11:51:05,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:51:05,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:51:05,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:51:05,069 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:51:05,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:05" (1/1) ... [2018-11-18 11:51:05,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:05" (1/1) ... [2018-11-18 11:51:05,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:05" (1/1) ... [2018-11-18 11:51:05,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:05" (1/1) ... [2018-11-18 11:51:05,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:05" (1/1) ... [2018-11-18 11:51:05,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:05" (1/1) ... [2018-11-18 11:51:05,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:05" (1/1) ... [2018-11-18 11:51:05,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:51:05,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:51:05,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:51:05,088 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:51:05,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:51:05,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:51:05,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:51:05,164 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:51:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 11:51:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:51:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:51:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:51:05,253 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:51:05,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:51:05 BoogieIcfgContainer [2018-11-18 11:51:05,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:51:05,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:51:05,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:51:05,256 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:51:05,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:51:04" (1/3) ... [2018-11-18 11:51:05,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5207ed18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:51:05, skipping insertion in model container [2018-11-18 11:51:05,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:51:05" (2/3) ... [2018-11-18 11:51:05,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5207ed18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:51:05, skipping insertion in model container [2018-11-18 11:51:05,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:51:05" (3/3) ... [2018-11-18 11:51:05,259 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp3_true-unreach-call_true-termination.i [2018-11-18 11:51:05,264 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:51:05,268 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:51:05,277 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:51:05,293 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:51:05,294 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:51:05,294 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:51:05,294 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:51:05,294 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:51:05,294 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:51:05,294 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:51:05,294 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:51:05,294 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:51:05,306 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-18 11:51:05,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 11:51:05,310 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:51:05,310 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:51:05,312 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:51:05,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:51:05,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-18 11:51:05,317 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:51:05,318 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/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 [2018-11-18 11:51:05,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:51:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:51:05,365 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:51:05,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:51:05,393 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:51:05,402 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:51:05,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:51:05,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:51:05,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:51:05,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:51:05,419 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2018-11-18 11:51:05,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:51:05,441 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-11-18 11:51:05,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:51:05,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-18 11:51:05,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:51:05,447 INFO L225 Difference]: With dead ends: 16 [2018-11-18 11:51:05,448 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 11:51:05,449 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:51:05,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 11:51:05,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 11:51:05,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 11:51:05,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 11:51:05,465 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-18 11:51:05,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:51:05,465 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:51:05,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:51:05,466 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:51:05,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 11:51:05,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 11:51:05,502 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 11:51:05,502 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:51:05,502 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:51:05,503 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 11:51:05,503 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:51:05,503 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:51:05,503 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-11-18 11:51:05,503 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 3 9) the Hoare annotation is: true [2018-11-18 11:51:05,503 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 3 9) no Hoare annotation was computed. [2018-11-18 11:51:05,504 INFO L425 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-11-18 11:51:05,504 INFO L425 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-11-18 11:51:05,504 INFO L425 ceAbstractionStarter]: For program point L8-3(lines 3 9) no Hoare annotation was computed. [2018-11-18 11:51:05,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:51:05 BoogieIcfgContainer [2018-11-18 11:51:05,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:51:05,507 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:51:05,507 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:51:05,507 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:51:05,508 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:51:05" (3/4) ... [2018-11-18 11:51:05,511 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 11:51:05,517 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 11:51:05,517 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 11:51:05,520 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 11:51:05,520 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 11:51:05,521 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 11:51:05,546 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d1e118b2-a5e8-4945-be56-a0cf6783c6e3/bin-2019/uautomizer/witness.graphml [2018-11-18 11:51:05,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:51:05,547 INFO L168 Benchmark]: Toolchain (without parser) took 636.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.3 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -180.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:51:05,548 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-18 11:51:05,548 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.96 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:51:05,549 INFO L168 Benchmark]: Boogie Preprocessor took 18.35 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:51:05,550 INFO L168 Benchmark]: RCFGBuilder took 165.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.3 MB). Free memory was 937.1 MB in the beginning and 1.2 GB in the end (delta: -228.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:51:05,550 INFO L168 Benchmark]: TraceAbstraction took 252.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:51:05,551 INFO L168 Benchmark]: Witness Printer took 39.17 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: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:51:05,552 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 156.96 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.35 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 165.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.3 MB). Free memory was 937.1 MB in the beginning and 1.2 GB in the end (delta: -228.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 252.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Witness Printer took 39.17 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: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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 3 procedures, 12 locations, 1 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 2 NumberOfNonLiveVariables, 14 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...