./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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/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 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_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/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 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ............................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 08:27:13,141 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 08:27:13,142 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 08:27:13,150 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 08:27:13,151 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 08:27:13,151 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 08:27:13,152 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 08:27:13,152 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 08:27:13,153 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 08:27:13,154 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 08:27:13,154 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 08:27:13,154 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 08:27:13,155 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 08:27:13,155 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 08:27:13,156 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 08:27:13,156 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 08:27:13,156 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 08:27:13,157 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 08:27:13,158 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 08:27:13,159 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 08:27:13,159 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 08:27:13,160 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 08:27:13,161 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 08:27:13,161 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 08:27:13,161 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 08:27:13,162 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 08:27:13,162 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 08:27:13,163 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 08:27:13,163 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 08:27:13,163 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 08:27:13,164 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 08:27:13,164 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 08:27:13,164 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 08:27:13,164 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 08:27:13,165 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 08:27:13,165 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 08:27:13,165 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 08:27:13,172 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 08:27:13,172 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 08:27:13,173 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 08:27:13,173 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 08:27:13,173 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 08:27:13,173 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 08:27:13,173 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 08:27:13,173 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 08:27:13,173 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 08:27:13,173 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 08:27:13,174 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 08:27:13,174 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 08:27:13,174 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 08:27:13,174 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 08:27:13,174 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 08:27:13,174 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 08:27:13,174 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 08:27:13,174 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 08:27:13,174 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 08:27:13,174 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 08:27:13,174 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 08:27:13,174 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 08:27:13,174 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 08:27:13,175 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 08:27:13,175 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 08:27:13,175 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 08:27:13,175 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 08:27:13,175 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 08:27:13,175 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 08:27:13,175 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 08:27:13,175 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_3699445e-6af1-46f5-998b-8cc823966aa2/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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2018-12-08 08:27:13,192 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 08:27:13,199 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 08:27:13,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 08:27:13,201 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 08:27:13,202 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 08:27:13,202 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-12-08 08:27:13,237 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/data/6744609e8/fec7fef48e1c4879a687024630c48481/FLAG07ab2ac77 [2018-12-08 08:27:13,553 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 08:27:13,553 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-12-08 08:27:13,556 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/data/6744609e8/fec7fef48e1c4879a687024630c48481/FLAG07ab2ac77 [2018-12-08 08:27:13,564 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/data/6744609e8/fec7fef48e1c4879a687024630c48481 [2018-12-08 08:27:13,566 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 08:27:13,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 08:27:13,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 08:27:13,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 08:27:13,570 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 08:27:13,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:27:13" (1/1) ... [2018-12-08 08:27:13,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bdc723e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:13, skipping insertion in model container [2018-12-08 08:27:13,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:27:13" (1/1) ... [2018-12-08 08:27:13,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 08:27:13,585 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 08:27:13,669 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:27:13,671 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 08:27:13,680 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:27:13,687 INFO L195 MainTranslator]: Completed translation [2018-12-08 08:27:13,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:13 WrapperNode [2018-12-08 08:27:13,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 08:27:13,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 08:27:13,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 08:27:13,688 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 08:27:13,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:13" (1/1) ... [2018-12-08 08:27:13,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:13" (1/1) ... [2018-12-08 08:27:13,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 08:27:13,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 08:27:13,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 08:27:13,701 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 08:27:13,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:13" (1/1) ... [2018-12-08 08:27:13,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:13" (1/1) ... [2018-12-08 08:27:13,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:13" (1/1) ... [2018-12-08 08:27:13,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:13" (1/1) ... [2018-12-08 08:27:13,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:13" (1/1) ... [2018-12-08 08:27:13,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:13" (1/1) ... [2018-12-08 08:27:13,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:13" (1/1) ... [2018-12-08 08:27:13,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 08:27:13,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 08:27:13,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 08:27:13,713 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 08:27:13,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/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 [2018-12-08 08:27:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 08:27:13,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 08:27:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 08:27:13,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 08:27:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 08:27:13,779 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 08:27:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2018-12-08 08:27:13,780 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2018-12-08 08:27:13,856 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 08:27:13,857 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 08:27:13,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:27:13 BoogieIcfgContainer [2018-12-08 08:27:13,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 08:27:13,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 08:27:13,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 08:27:13,859 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 08:27:13,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 08:27:13" (1/3) ... [2018-12-08 08:27:13,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c25b6c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:27:13, skipping insertion in model container [2018-12-08 08:27:13,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:13" (2/3) ... [2018-12-08 08:27:13,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c25b6c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:27:13, skipping insertion in model container [2018-12-08 08:27:13,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:27:13" (3/3) ... [2018-12-08 08:27:13,861 INFO L112 eAbstractionObserver]: Analyzing ICFG float3_true-unreach-call_true-termination.i [2018-12-08 08:27:13,867 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 08:27:13,871 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 08:27:13,879 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 08:27:13,898 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 08:27:13,898 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 08:27:13,898 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 08:27:13,899 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 08:27:13,899 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 08:27:13,899 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 08:27:13,899 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 08:27:13,899 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 08:27:13,899 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 08:27:13,909 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-12-08 08:27:13,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 08:27:13,913 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:27:13,913 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:27:13,915 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 08:27:13,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:27:13,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1639801167, now seen corresponding path program 1 times [2018-12-08 08:27:13,920 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:27:13,920 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:27:13,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:27:13,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:27:13,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:27:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:27:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:27:13,989 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 08:27:14,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 08:27:14 BoogieIcfgContainer [2018-12-08 08:27:14,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 08:27:14,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 08:27:14,003 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 08:27:14,003 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 08:27:14,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:27:13" (3/4) ... [2018-12-08 08:27:14,006 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 08:27:14,006 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 08:27:14,007 INFO L168 Benchmark]: Toolchain (without parser) took 440.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -147.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:27:14,008 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:27:14,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 120.57 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 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. [2018-12-08 08:27:14,009 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.16 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:27:14,009 INFO L168 Benchmark]: Boogie Preprocessor took 11.69 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:27:14,009 INFO L168 Benchmark]: RCFGBuilder took 144.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -168.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-12-08 08:27:14,010 INFO L168 Benchmark]: TraceAbstraction took 145.50 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: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 11.5 GB. [2018-12-08 08:27:14,010 INFO L168 Benchmark]: Witness Printer took 3.09 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. [2018-12-08 08:27:14,012 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 120.57 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 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 Procedure Inliner took 12.16 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.69 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 144.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -168.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 145.50 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: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.09 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 0.1.23-635dfa2 [2018-12-08 08:27:15,293 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 08:27:15,294 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 08:27:15,303 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 08:27:15,303 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 08:27:15,304 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 08:27:15,305 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 08:27:15,306 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 08:27:15,307 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 08:27:15,308 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 08:27:15,308 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 08:27:15,309 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 08:27:15,309 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 08:27:15,310 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 08:27:15,311 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 08:27:15,311 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 08:27:15,312 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 08:27:15,313 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 08:27:15,315 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 08:27:15,316 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 08:27:15,316 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 08:27:15,317 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 08:27:15,318 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 08:27:15,319 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 08:27:15,319 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 08:27:15,320 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 08:27:15,320 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 08:27:15,321 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 08:27:15,321 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 08:27:15,322 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 08:27:15,322 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 08:27:15,323 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 08:27:15,323 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 08:27:15,323 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 08:27:15,324 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 08:27:15,324 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 08:27:15,324 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-08 08:27:15,334 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 08:27:15,334 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 08:27:15,335 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 08:27:15,335 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 08:27:15,336 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 08:27:15,336 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 08:27:15,336 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 08:27:15,336 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 08:27:15,336 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 08:27:15,336 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 08:27:15,336 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 08:27:15,337 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 08:27:15,337 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 08:27:15,337 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 08:27:15,337 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 08:27:15,337 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 08:27:15,337 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 08:27:15,337 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 08:27:15,337 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 08:27:15,338 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 08:27:15,338 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 08:27:15,338 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 08:27:15,338 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 08:27:15,338 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 08:27:15,338 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 08:27:15,338 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 08:27:15,338 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 08:27:15,338 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 08:27:15,338 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-08 08:27:15,338 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 08:27:15,338 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 08:27:15,338 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 08:27:15,339 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_3699445e-6af1-46f5-998b-8cc823966aa2/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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2018-12-08 08:27:15,356 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 08:27:15,363 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 08:27:15,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 08:27:15,366 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 08:27:15,366 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 08:27:15,367 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-12-08 08:27:15,402 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/data/6311d9f4c/b5ef27f0c8c84b439c52ef82293fd011/FLAG774883e00 [2018-12-08 08:27:15,729 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 08:27:15,729 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-12-08 08:27:15,734 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/data/6311d9f4c/b5ef27f0c8c84b439c52ef82293fd011/FLAG774883e00 [2018-12-08 08:27:16,133 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/data/6311d9f4c/b5ef27f0c8c84b439c52ef82293fd011 [2018-12-08 08:27:16,135 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 08:27:16,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 08:27:16,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 08:27:16,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 08:27:16,138 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 08:27:16,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:27:16" (1/1) ... [2018-12-08 08:27:16,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b45ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:16, skipping insertion in model container [2018-12-08 08:27:16,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:27:16" (1/1) ... [2018-12-08 08:27:16,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 08:27:16,153 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 08:27:16,237 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:27:16,241 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 08:27:16,250 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:27:16,259 INFO L195 MainTranslator]: Completed translation [2018-12-08 08:27:16,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:16 WrapperNode [2018-12-08 08:27:16,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 08:27:16,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 08:27:16,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 08:27:16,260 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 08:27:16,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:16" (1/1) ... [2018-12-08 08:27:16,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:16" (1/1) ... [2018-12-08 08:27:16,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 08:27:16,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 08:27:16,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 08:27:16,273 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 08:27:16,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:16" (1/1) ... [2018-12-08 08:27:16,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:16" (1/1) ... [2018-12-08 08:27:16,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:16" (1/1) ... [2018-12-08 08:27:16,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:16" (1/1) ... [2018-12-08 08:27:16,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:16" (1/1) ... [2018-12-08 08:27:16,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:16" (1/1) ... [2018-12-08 08:27:16,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:16" (1/1) ... [2018-12-08 08:27:16,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 08:27:16,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 08:27:16,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 08:27:16,287 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 08:27:16,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/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 [2018-12-08 08:27:16,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 08:27:16,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 08:27:16,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 08:27:16,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 08:27:16,350 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 08:27:16,350 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 08:27:16,350 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2018-12-08 08:27:16,350 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2018-12-08 08:27:17,199 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 08:27:17,199 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 08:27:17,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:27:17 BoogieIcfgContainer [2018-12-08 08:27:17,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 08:27:17,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 08:27:17,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 08:27:17,203 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 08:27:17,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 08:27:16" (1/3) ... [2018-12-08 08:27:17,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7de169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:27:17, skipping insertion in model container [2018-12-08 08:27:17,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:27:16" (2/3) ... [2018-12-08 08:27:17,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7de169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:27:17, skipping insertion in model container [2018-12-08 08:27:17,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:27:17" (3/3) ... [2018-12-08 08:27:17,205 INFO L112 eAbstractionObserver]: Analyzing ICFG float3_true-unreach-call_true-termination.i [2018-12-08 08:27:17,210 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 08:27:17,214 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 08:27:17,222 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 08:27:17,238 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 08:27:17,239 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 08:27:17,239 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 08:27:17,239 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 08:27:17,239 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 08:27:17,239 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 08:27:17,239 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 08:27:17,240 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 08:27:17,240 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 08:27:17,253 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-12-08 08:27:17,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 08:27:17,257 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:27:17,258 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:27:17,259 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 08:27:17,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:27:17,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1639801167, now seen corresponding path program 1 times [2018-12-08 08:27:17,265 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 08:27:17,265 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/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 [2018-12-08 08:27:17,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:27:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:27:17,421 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:27:17,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:27:17,491 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 08:27:17,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:27:17,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 08:27:17,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 08:27:17,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 08:27:17,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 08:27:17,514 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 6 states. [2018-12-08 08:27:19,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:27:19,099 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2018-12-08 08:27:19,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 08:27:19,100 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-12-08 08:27:19,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:27:19,106 INFO L225 Difference]: With dead ends: 30 [2018-12-08 08:27:19,106 INFO L226 Difference]: Without dead ends: 15 [2018-12-08 08:27:19,108 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 [2018-12-08 08:27:19,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-08 08:27:19,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-08 08:27:19,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-08 08:27:19,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-12-08 08:27:19,129 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2018-12-08 08:27:19,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:27:19,129 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-12-08 08:27:19,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 08:27:19,130 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-12-08 08:27:19,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 08:27:19,130 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:27:19,130 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:27:19,131 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 08:27:19,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:27:19,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1845819503, now seen corresponding path program 1 times [2018-12-08 08:27:19,131 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 08:27:19,131 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/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 [2018-12-08 08:27:19,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:27:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:27:19,284 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:27:19,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:27:19,326 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 08:27:19,335 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:27:19,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 08:27:19,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 08:27:19,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 08:27:19,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 08:27:19,337 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 6 states. [2018-12-08 08:27:20,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:27:20,270 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2018-12-08 08:27:20,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 08:27:20,270 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-12-08 08:27:20,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:27:20,270 INFO L225 Difference]: With dead ends: 15 [2018-12-08 08:27:20,271 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 08:27:20,271 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 [2018-12-08 08:27:20,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 08:27:20,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 08:27:20,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 08:27:20,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 08:27:20,272 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-12-08 08:27:20,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:27:20,272 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 08:27:20,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 08:27:20,272 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 08:27:20,272 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 08:27:20,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 08:27:20,307 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 08:27:20,307 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-08 08:27:20,307 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 08:27:20,307 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 08:27:20,307 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 08:27:20,307 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 08:27:20,307 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 08:27:20,307 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 11 25) the Hoare annotation is: true [2018-12-08 08:27:20,307 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 25) no Hoare annotation was computed. [2018-12-08 08:27:20,308 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-12-08 08:27:20,308 INFO L448 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-12-08 08:27:20,308 INFO L448 ceAbstractionStarter]: For program point L24-3(lines 11 25) no Hoare annotation was computed. [2018-12-08 08:27:20,308 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-12-08 08:27:20,308 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 16) no Hoare annotation was computed. [2018-12-08 08:27:20,308 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 24) no Hoare annotation was computed. [2018-12-08 08:27:20,308 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))) [2018-12-08 08:27:20,308 INFO L448 ceAbstractionStarter]: For program point f1FINAL(lines 6 9) no Hoare annotation was computed. [2018-12-08 08:27:20,308 INFO L448 ceAbstractionStarter]: For program point f1EXIT(lines 6 9) no Hoare annotation was computed. [2018-12-08 08:27:20,308 INFO L451 ceAbstractionStarter]: At program point f1ENTRY(lines 6 9) the Hoare annotation is: true [2018-12-08 08:27:20,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 08:27:20 BoogieIcfgContainer [2018-12-08 08:27:20,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 08:27:20,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 08:27:20,311 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 08:27:20,311 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 08:27:20,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:27:17" (3/4) ... [2018-12-08 08:27:20,313 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 08:27:20,317 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 08:27:20,317 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 08:27:20,318 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2018-12-08 08:27:20,320 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-08 08:27:20,320 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 08:27:20,342 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3699445e-6af1-46f5-998b-8cc823966aa2/bin-2019/uautomizer/witness.graphml [2018-12-08 08:27:20,342 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 08:27:20,343 INFO L168 Benchmark]: Toolchain (without parser) took 4207.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -96.9 MB). Peak memory consumption was 35.2 MB. Max. memory is 11.5 GB. [2018-12-08 08:27:20,343 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:27:20,344 INFO L168 Benchmark]: CACSL2BoogieTranslator took 123.41 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 08:27:20,344 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.48 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:27:20,344 INFO L168 Benchmark]: Boogie Preprocessor took 13.43 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 08:27:20,344 INFO L168 Benchmark]: RCFGBuilder took 912.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-08 08:27:20,345 INFO L168 Benchmark]: TraceAbstraction took 3109.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.4 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB. [2018-12-08 08:27:20,345 INFO L168 Benchmark]: Witness Printer took 31.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:27:20,347 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 123.41 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 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 13.48 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.43 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 912.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3109.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.4 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB. * Witness Printer took 31.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. 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, 3.0s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 2.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 8 SDslu, 64 SDs, 0 SdLazy, 29 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s 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...