./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/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 d83baf1cdb4ca03660244dae388672dd75d02b3f ............................................................................................................................................................................................................................................................................................................................................................................ 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_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/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 d83baf1cdb4ca03660244dae388672dd75d02b3f ............................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 22:17:26,753 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 22:17:26,754 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 22:17:26,761 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 22:17:26,761 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 22:17:26,762 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 22:17:26,763 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 22:17:26,764 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 22:17:26,765 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 22:17:26,765 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 22:17:26,766 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 22:17:26,766 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 22:17:26,767 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 22:17:26,767 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 22:17:26,768 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 22:17:26,769 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 22:17:26,769 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 22:17:26,771 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 22:17:26,772 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 22:17:26,773 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 22:17:26,774 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 22:17:26,775 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 22:17:26,776 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 22:17:26,776 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 22:17:26,777 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 22:17:26,777 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 22:17:26,778 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 22:17:26,779 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 22:17:26,779 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 22:17:26,780 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 22:17:26,780 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 22:17:26,780 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 22:17:26,781 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 22:17:26,781 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 22:17:26,781 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 22:17:26,782 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 22:17:26,782 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-22 22:17:26,789 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 22:17:26,789 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 22:17:26,790 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 22:17:26,790 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 22:17:26,790 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 22:17:26,790 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 22:17:26,790 INFO L133 SettingsManager]: * Use SBE=true [2018-11-22 22:17:26,791 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 22:17:26,791 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 22:17:26,791 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 22:17:26,791 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 22:17:26,791 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 22:17:26,791 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 22:17:26,791 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 22:17:26,792 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 22:17:26,792 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 22:17:26,792 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 22:17:26,792 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 22:17:26,792 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 22:17:26,792 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 22:17:26,792 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 22:17:26,793 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 22:17:26,793 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 22:17:26,793 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 22:17:26,793 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 22:17:26,793 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 22:17:26,793 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 22:17:26,793 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-22 22:17:26,793 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 22:17:26,794 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 22:17:26,794 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_74094129-533c-4a94-b7d7-97e75c74533e/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 -> d83baf1cdb4ca03660244dae388672dd75d02b3f [2018-11-22 22:17:26,816 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 22:17:26,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 22:17:26,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 22:17:26,829 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 22:17:26,829 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 22:17:26,830 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-11-22 22:17:26,869 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/data/af8b3f680/3d5703da2fcf41c4b3ac9a00db24d006/FLAG23e40851d [2018-11-22 22:17:27,161 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 22:17:27,162 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-11-22 22:17:27,165 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/data/af8b3f680/3d5703da2fcf41c4b3ac9a00db24d006/FLAG23e40851d [2018-11-22 22:17:27,175 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/data/af8b3f680/3d5703da2fcf41c4b3ac9a00db24d006 [2018-11-22 22:17:27,177 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 22:17:27,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 22:17:27,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 22:17:27,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 22:17:27,181 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 22:17:27,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:17:27" (1/1) ... [2018-11-22 22:17:27,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297c766c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:27, skipping insertion in model container [2018-11-22 22:17:27,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:17:27" (1/1) ... [2018-11-22 22:17:27,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 22:17:27,201 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 22:17:27,295 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:17:27,297 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 22:17:27,306 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:17:27,313 INFO L195 MainTranslator]: Completed translation [2018-11-22 22:17:27,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:27 WrapperNode [2018-11-22 22:17:27,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 22:17:27,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 22:17:27,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 22:17:27,314 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 22:17:27,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:27" (1/1) ... [2018-11-22 22:17:27,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:27" (1/1) ... [2018-11-22 22:17:27,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 22:17:27,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 22:17:27,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 22:17:27,327 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 22:17:27,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:27" (1/1) ... [2018-11-22 22:17:27,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:27" (1/1) ... [2018-11-22 22:17:27,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:27" (1/1) ... [2018-11-22 22:17:27,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:27" (1/1) ... [2018-11-22 22:17:27,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:27" (1/1) ... [2018-11-22 22:17:27,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:27" (1/1) ... [2018-11-22 22:17:27,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:27" (1/1) ... [2018-11-22 22:17:27,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 22:17:27,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 22:17:27,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 22:17:27,342 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 22:17:27,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/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 [2018-11-22 22:17:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 22:17:27,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 22:17:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 22:17:27,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 22:17:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 22:17:27,420 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 22:17:27,511 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 22:17:27,511 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-22 22:17:27,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:17:27 BoogieIcfgContainer [2018-11-22 22:17:27,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 22:17:27,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 22:17:27,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 22:17:27,515 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 22:17:27,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:17:27" (1/3) ... [2018-11-22 22:17:27,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221c022d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:17:27, skipping insertion in model container [2018-11-22 22:17:27,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:27" (2/3) ... [2018-11-22 22:17:27,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221c022d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:17:27, skipping insertion in model container [2018-11-22 22:17:27,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:17:27" (3/3) ... [2018-11-22 22:17:27,517 INFO L112 eAbstractionObserver]: Analyzing ICFG float1_true-unreach-call_true-termination.i [2018-11-22 22:17:27,523 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 22:17:27,528 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-22 22:17:27,538 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-22 22:17:27,556 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 22:17:27,557 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 22:17:27,557 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 22:17:27,557 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 22:17:27,557 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 22:17:27,557 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 22:17:27,557 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 22:17:27,557 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 22:17:27,558 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 22:17:27,569 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-11-22 22:17:27,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-22 22:17:27,573 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:17:27,574 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-22 22:17:27,575 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:17:27,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:17:27,579 INFO L82 PathProgramCache]: Analyzing trace with hash 703471866, now seen corresponding path program 1 times [2018-11-22 22:17:27,581 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:17:27,581 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:17:27,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:17:27,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:17:27,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:17:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:17:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:17:27,650 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #24#return; [?] CALL call #t~ret0 := main(); [?] havoc ~x~0;havoc ~y~0;~x~0 := ~convertINTToDOUBLE(2);~x~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 0.6);~y~0 := ~convertDOUBLEToINT(~x~0); [?] assume !(1 == ~y~0); VAL [main_~y~0=0] [?] assume !false; VAL [main_~y~0=0] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L3] havoc ~x~0; [L4] havoc ~y~0; [L6] ~x~0 := ~convertINTToDOUBLE(2); [L7] ~x~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 0.6); [L8] ~y~0 := ~convertDOUBLEToINT(~x~0); [L10] assume !(1 == ~y~0); VAL [~y~0=0] [L10] assert false; VAL [~y~0=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L3] havoc ~x~0; [L4] havoc ~y~0; [L6] ~x~0 := ~convertINTToDOUBLE(2); [L7] ~x~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 0.6); [L8] ~y~0 := ~convertDOUBLEToINT(~x~0); [L10] assume !(1 == ~y~0); VAL [~y~0=0] [L10] assert false; VAL [~y~0=0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L3] havoc ~x~0; [L4] havoc ~y~0; [L6] ~x~0 := ~convertINTToDOUBLE(2); [L7] ~x~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 0.6); [L8] ~y~0 := ~convertDOUBLEToINT(~x~0); [L10] COND TRUE !(1 == ~y~0) VAL [~y~0=0] [L10] assert false; VAL [~y~0=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L3] havoc ~x~0; [L4] havoc ~y~0; [L6] ~x~0 := ~convertINTToDOUBLE(2); [L7] ~x~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 0.6); [L8] ~y~0 := ~convertDOUBLEToINT(~x~0); [L10] COND TRUE !(1 == ~y~0) VAL [~y~0=0] [L10] assert false; VAL [~y~0=0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L3] havoc ~x~0; [L4] havoc ~y~0; [L6] ~x~0 := ~convertINTToDOUBLE(2); [L7] ~x~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 0.6); [L8] ~y~0 := ~convertDOUBLEToINT(~x~0); [L10] COND TRUE !(1 == ~y~0) VAL [~y~0=0] [L10] assert false; VAL [~y~0=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L3] havoc ~x~0; [L4] havoc ~y~0; [L6] ~x~0 := ~convertINTToDOUBLE(2); [L7] ~x~0 := ~someBinaryArithmeticDOUBLEoperation(~x~0, 0.6); [L8] ~y~0 := ~convertDOUBLEToINT(~x~0); [L10] COND TRUE !(1 == ~y~0) VAL [~y~0=0] [L10] assert false; VAL [~y~0=0] [L3] double x; [L4] int y; [L6] x=2 [L7] x-=0.6 [L8] y=x [L10] COND TRUE !(y==1) VAL [y=0] [L10] __VERIFIER_error() VAL [y=0] ----- [2018-11-22 22:17:27,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 10:17:27 BoogieIcfgContainer [2018-11-22 22:17:27,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 22:17:27,672 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 22:17:27,672 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 22:17:27,672 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 22:17:27,673 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:17:27" (3/4) ... [2018-11-22 22:17:27,676 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-22 22:17:27,676 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 22:17:27,677 INFO L168 Benchmark]: Toolchain (without parser) took 499.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 959.3 MB in the beginning and 1.1 GB in the end (delta: -152.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:17:27,678 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:17:27,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 134.77 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-22 22:17:27,679 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.70 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:17:27,680 INFO L168 Benchmark]: Boogie Preprocessor took 14.83 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 22:17:27,680 INFO L168 Benchmark]: RCFGBuilder took 170.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-22 22:17:27,681 INFO L168 Benchmark]: TraceAbstraction took 159.44 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-22 22:17:27,681 INFO L168 Benchmark]: Witness Printer took 4.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:17:27,684 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 134.77 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.70 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.83 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 170.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 159.44 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.02 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: 10]: 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 someBinaryArithmeticDOUBLEoperation at line 7, overapproximation of to_real at line 6. Possible FailurePath: [L3] double x; [L4] int y; [L6] x=2 [L7] x-=0.6 [L8] y=x [L10] COND TRUE !(y==1) VAL [y=0] [L10] __VERIFIER_error() VAL [y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 2 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=16occurred 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-aa41828 [2018-11-22 22:17:29,164 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 22:17:29,166 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 22:17:29,176 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 22:17:29,176 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 22:17:29,177 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 22:17:29,178 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 22:17:29,179 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 22:17:29,180 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 22:17:29,181 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 22:17:29,182 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 22:17:29,182 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 22:17:29,183 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 22:17:29,184 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 22:17:29,185 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 22:17:29,185 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 22:17:29,187 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 22:17:29,188 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 22:17:29,189 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 22:17:29,191 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 22:17:29,192 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 22:17:29,193 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 22:17:29,195 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 22:17:29,195 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 22:17:29,196 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 22:17:29,196 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 22:17:29,197 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 22:17:29,198 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 22:17:29,198 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 22:17:29,200 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 22:17:29,200 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 22:17:29,201 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 22:17:29,201 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 22:17:29,201 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 22:17:29,202 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 22:17:29,202 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 22:17:29,202 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-22 22:17:29,214 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 22:17:29,214 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 22:17:29,215 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 22:17:29,215 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 22:17:29,216 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 22:17:29,216 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 22:17:29,216 INFO L133 SettingsManager]: * Use SBE=true [2018-11-22 22:17:29,216 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 22:17:29,217 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 22:17:29,217 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 22:17:29,217 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 22:17:29,217 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 22:17:29,217 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 22:17:29,217 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 22:17:29,217 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-22 22:17:29,218 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-22 22:17:29,218 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 22:17:29,218 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 22:17:29,218 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 22:17:29,218 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 22:17:29,218 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 22:17:29,218 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 22:17:29,219 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 22:17:29,219 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 22:17:29,219 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 22:17:29,219 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 22:17:29,219 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 22:17:29,219 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 22:17:29,219 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-22 22:17:29,220 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 22:17:29,220 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-22 22:17:29,220 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-22 22:17:29,220 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_74094129-533c-4a94-b7d7-97e75c74533e/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 -> d83baf1cdb4ca03660244dae388672dd75d02b3f [2018-11-22 22:17:29,254 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 22:17:29,264 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 22:17:29,267 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 22:17:29,268 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 22:17:29,268 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 22:17:29,269 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-11-22 22:17:29,319 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/data/d2cb91114/7b50cbe46d144d0082fe6a9cfbe12516/FLAG27b93d480 [2018-11-22 22:17:29,639 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 22:17:29,639 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-11-22 22:17:29,643 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/data/d2cb91114/7b50cbe46d144d0082fe6a9cfbe12516/FLAG27b93d480 [2018-11-22 22:17:30,080 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/data/d2cb91114/7b50cbe46d144d0082fe6a9cfbe12516 [2018-11-22 22:17:30,082 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 22:17:30,083 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 22:17:30,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 22:17:30,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 22:17:30,086 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 22:17:30,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:17:30" (1/1) ... [2018-11-22 22:17:30,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f7b287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:30, skipping insertion in model container [2018-11-22 22:17:30,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:17:30" (1/1) ... [2018-11-22 22:17:30,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 22:17:30,110 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 22:17:30,225 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:17:30,231 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 22:17:30,243 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:17:30,255 INFO L195 MainTranslator]: Completed translation [2018-11-22 22:17:30,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:30 WrapperNode [2018-11-22 22:17:30,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 22:17:30,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 22:17:30,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 22:17:30,256 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 22:17:30,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:30" (1/1) ... [2018-11-22 22:17:30,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:30" (1/1) ... [2018-11-22 22:17:30,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 22:17:30,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 22:17:30,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 22:17:30,270 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 22:17:30,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:30" (1/1) ... [2018-11-22 22:17:30,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:30" (1/1) ... [2018-11-22 22:17:30,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:30" (1/1) ... [2018-11-22 22:17:30,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:30" (1/1) ... [2018-11-22 22:17:30,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:30" (1/1) ... [2018-11-22 22:17:30,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:30" (1/1) ... [2018-11-22 22:17:30,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:30" (1/1) ... [2018-11-22 22:17:30,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 22:17:30,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 22:17:30,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 22:17:30,285 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 22:17:30,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/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 [2018-11-22 22:17:30,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 22:17:30,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 22:17:30,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 22:17:30,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 22:17:30,362 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 22:17:30,362 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 22:17:30,461 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 22:17:30,462 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-22 22:17:30,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:17:30 BoogieIcfgContainer [2018-11-22 22:17:30,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 22:17:30,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 22:17:30,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 22:17:30,465 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 22:17:30,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:17:30" (1/3) ... [2018-11-22 22:17:30,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0e1cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:17:30, skipping insertion in model container [2018-11-22 22:17:30,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:17:30" (2/3) ... [2018-11-22 22:17:30,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0e1cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:17:30, skipping insertion in model container [2018-11-22 22:17:30,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:17:30" (3/3) ... [2018-11-22 22:17:30,468 INFO L112 eAbstractionObserver]: Analyzing ICFG float1_true-unreach-call_true-termination.i [2018-11-22 22:17:30,474 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 22:17:30,479 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-22 22:17:30,488 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-22 22:17:30,508 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 22:17:30,509 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 22:17:30,509 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 22:17:30,509 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 22:17:30,509 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 22:17:30,509 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 22:17:30,510 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 22:17:30,510 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 22:17:30,510 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 22:17:30,524 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-11-22 22:17:30,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-22 22:17:30,528 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:17:30,529 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-22 22:17:30,530 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:17:30,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:17:30,534 INFO L82 PathProgramCache]: Analyzing trace with hash 703471866, now seen corresponding path program 1 times [2018-11-22 22:17:30,537 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 22:17:30,538 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/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 [2018-11-22 22:17:30,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:17:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:17:30,569 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:17:30,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:17:30,601 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 22:17:30,615 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:17:30,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-22 22:17:30,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 22:17:30,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 22:17:30,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 22:17:30,631 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2018-11-22 22:17:30,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:17:30,668 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2018-11-22 22:17:30,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 22:17:30,670 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-22 22:17:30,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:17:30,674 INFO L225 Difference]: With dead ends: 22 [2018-11-22 22:17:30,674 INFO L226 Difference]: Without dead ends: 0 [2018-11-22 22:17:30,677 INFO L631 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 [2018-11-22 22:17:30,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-22 22:17:30,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-22 22:17:30,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-22 22:17:30,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 22:17:30,693 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-22 22:17:30,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:17:30,694 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 22:17:30,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 22:17:30,694 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-22 22:17:30,694 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 22:17:30,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-22 22:17:30,744 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-22 22:17:30,744 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-22 22:17:30,744 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-22 22:17:30,745 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-22 22:17:30,745 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-22 22:17:30,745 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-22 22:17:30,745 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 2 18) the Hoare annotation is: true [2018-11-22 22:17:30,745 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 2 18) no Hoare annotation was computed. [2018-11-22 22:17:30,745 INFO L448 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-22 22:17:30,745 INFO L448 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-11-22 22:17:30,746 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2018-11-22 22:17:30,746 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 2 18) no Hoare annotation was computed. [2018-11-22 22:17:30,746 INFO L448 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-11-22 22:17:30,746 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-11-22 22:17:30,746 INFO L448 ceAbstractionStarter]: For program point L10-3(line 10) no Hoare annotation was computed. [2018-11-22 22:17:30,746 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-11-22 22:17:30,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 10:17:30 BoogieIcfgContainer [2018-11-22 22:17:30,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 22:17:30,748 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 22:17:30,749 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 22:17:30,749 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 22:17:30,749 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:17:30" (3/4) ... [2018-11-22 22:17:30,752 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 22:17:30,756 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-22 22:17:30,757 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-22 22:17:30,760 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-22 22:17:30,760 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-22 22:17:30,760 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-22 22:17:30,783 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_74094129-533c-4a94-b7d7-97e75c74533e/bin-2019/uautomizer/witness.graphml [2018-11-22 22:17:30,783 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 22:17:30,784 INFO L168 Benchmark]: Toolchain (without parser) took 702.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -138.7 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. [2018-11-22 22:17:30,785 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-11-22 22:17:30,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.30 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-22 22:17:30,786 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.09 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-22 22:17:30,787 INFO L168 Benchmark]: Boogie Preprocessor took 14.92 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:17:30,787 INFO L168 Benchmark]: RCFGBuilder took 176.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2018-11-22 22:17:30,787 INFO L168 Benchmark]: TraceAbstraction took 285.69 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: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2018-11-22 22:17:30,788 INFO L168 Benchmark]: Witness Printer took 35.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:17:30,790 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 172.30 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.09 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.92 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 176.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 285.69 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: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. * Witness Printer took 35.10 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: - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 2 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 3 SDslu, 6 SDs, 0 SdLazy, 2 SolverSat, 2 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=16occurred 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, 102 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...