./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/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 9ab995f7fc826665e07ee96ac8969470b0927c50 ....................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/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 9ab995f7fc826665e07ee96ac8969470b0927c50 ........................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 11:25:42,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:25:42,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:25:42,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:25:42,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:25:42,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:25:42,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:25:42,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:25:42,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:25:42,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:25:42,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:25:42,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:25:42,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:25:42,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:25:42,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:25:42,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:25:42,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:25:42,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:25:42,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:25:42,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:25:42,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:25:42,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:25:42,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:25:42,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:25:42,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:25:42,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:25:42,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:25:42,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:25:42,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:25:42,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:25:42,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:25:42,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:25:42,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:25:42,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:25:42,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:25:42,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:25:42,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:25:42,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:25:42,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:25:42,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:25:42,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:25:42,183 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 11:25:42,197 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:25:42,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:25:42,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:25:42,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:25:42,199 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:25:42,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:25:42,200 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:25:42,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:25:42,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:25:42,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:25:42,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 11:25:42,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:25:42,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 11:25:42,202 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:25:42,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:25:42,202 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:25:42,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 11:25:42,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:25:42,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:25:42,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:25:42,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 11:25:42,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:25:42,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:25:42,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:25:42,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 11:25:42,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 11:25:42,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 11:25:42,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 11:25:42,205 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/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 -> 9ab995f7fc826665e07ee96ac8969470b0927c50 [2019-11-20 11:25:42,391 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:25:42,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:25:42,413 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:25:42,414 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:25:42,414 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:25:42,415 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-11-20 11:25:42,477 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/data/577fec7a7/3cf191080c1a4eeea5287024a9b4e4b0/FLAGc2ef41429 [2019-11-20 11:25:42,858 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:25:42,859 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-11-20 11:25:42,866 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/data/577fec7a7/3cf191080c1a4eeea5287024a9b4e4b0/FLAGc2ef41429 [2019-11-20 11:25:42,881 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/data/577fec7a7/3cf191080c1a4eeea5287024a9b4e4b0 [2019-11-20 11:25:42,884 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:25:42,885 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:25:42,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:25:42,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:25:42,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:25:42,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:25:42" (1/1) ... [2019-11-20 11:25:42,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235c80a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:42, skipping insertion in model container [2019-11-20 11:25:42,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:25:42" (1/1) ... [2019-11-20 11:25:42,899 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:25:42,913 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:25:43,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:25:43,075 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:25:43,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:25:43,159 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:25:43,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:43 WrapperNode [2019-11-20 11:25:43,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:25:43,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:25:43,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:25:43,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:25:43,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:43" (1/1) ... [2019-11-20 11:25:43,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:43" (1/1) ... [2019-11-20 11:25:43,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:25:43,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:25:43,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:25:43,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:25:43,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:43" (1/1) ... [2019-11-20 11:25:43,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:43" (1/1) ... [2019-11-20 11:25:43,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:43" (1/1) ... [2019-11-20 11:25:43,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:43" (1/1) ... [2019-11-20 11:25:43,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:43" (1/1) ... [2019-11-20 11:25:43,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:43" (1/1) ... [2019-11-20 11:25:43,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:43" (1/1) ... [2019-11-20 11:25:43,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:25:43,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:25:43,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:25:43,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:25:43,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/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 [2019-11-20 11:25:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:25:43,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:25:43,345 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:25:43,345 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 11:25:43,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:25:43 BoogieIcfgContainer [2019-11-20 11:25:43,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:25:43,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:25:43,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:25:43,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:25:43,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:25:42" (1/3) ... [2019-11-20 11:25:43,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c679867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:25:43, skipping insertion in model container [2019-11-20 11:25:43,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:43" (2/3) ... [2019-11-20 11:25:43,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c679867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:25:43, skipping insertion in model container [2019-11-20 11:25:43,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:25:43" (3/3) ... [2019-11-20 11:25:43,353 INFO L109 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2019-11-20 11:25:43,361 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:25:43,367 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 11:25:43,377 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 11:25:43,398 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:25:43,398 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 11:25:43,398 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:25:43,399 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:25:43,399 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:25:43,399 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:25:43,399 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:25:43,399 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:25:43,412 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-20 11:25:43,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-20 11:25:43,416 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:25:43,417 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-20 11:25:43,417 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:25:43,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:25:43,423 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-20 11:25:43,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:25:43,430 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474223656] [2019-11-20 11:25:43,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:25:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:25:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:25:43,498 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 11:25:43,498 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 11:25:43,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:25:43 BoogieIcfgContainer [2019-11-20 11:25:43,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 11:25:43,510 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:25:43,510 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:25:43,511 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:25:43,511 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:25:43" (3/4) ... [2019-11-20 11:25:43,514 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 11:25:43,514 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:25:43,516 INFO L168 Benchmark]: Toolchain (without parser) took 630.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:25:43,517 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:25:43,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -196.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-20 11:25:43,519 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.55 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. [2019-11-20 11:25:43,519 INFO L168 Benchmark]: Boogie Preprocessor took 11.90 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. [2019-11-20 11:25:43,520 INFO L168 Benchmark]: RCFGBuilder took 149.43 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-11-20 11:25:43,520 INFO L168 Benchmark]: TraceAbstraction took 162.86 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:25:43,521 INFO L168 Benchmark]: Witness Printer took 3.95 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. [2019-11-20 11:25:43,524 INFO L335 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 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 273.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -196.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.55 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. * Boogie Preprocessor took 11.90 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. * RCFGBuilder took 149.43 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 162.86 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.95 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: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 9, overapproximation of someUnaryDOUBLEoperation at line 6, overapproximation of someUnaryFLOAToperation at line 5. Possible FailurePath: [L5] float f = -0x1.0p-127f; [L6] double d = -0x1.0p-127; [L7] double fp = (double)f; [L9] COND TRUE !(d == fp) [L9] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.24-678e011 [2019-11-20 11:25:45,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:25:45,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:25:45,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:25:45,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:25:45,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:25:45,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:25:45,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:25:45,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:25:45,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:25:45,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:25:45,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:25:45,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:25:45,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:25:45,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:25:45,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:25:45,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:25:45,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:25:45,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:25:45,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:25:45,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:25:45,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:25:45,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:25:45,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:25:45,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:25:45,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:25:45,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:25:45,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:25:45,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:25:45,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:25:45,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:25:45,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:25:45,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:25:45,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:25:45,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:25:45,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:25:45,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:25:45,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:25:45,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:25:45,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:25:45,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:25:45,334 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 11:25:45,352 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:25:45,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:25:45,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:25:45,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:25:45,355 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:25:45,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:25:45,355 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:25:45,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:25:45,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:25:45,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 11:25:45,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:25:45,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 11:25:45,357 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 11:25:45,358 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 11:25:45,358 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:25:45,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:25:45,358 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:25:45,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 11:25:45,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:25:45,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:25:45,359 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:25:45,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 11:25:45,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:25:45,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:25:45,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:25:45,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 11:25:45,361 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 11:25:45,361 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 11:25:45,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 11:25:45,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 11:25:45,362 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/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 -> 9ab995f7fc826665e07ee96ac8969470b0927c50 [2019-11-20 11:25:45,665 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:25:45,675 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:25:45,678 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:25:45,679 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:25:45,680 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:25:45,680 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-11-20 11:25:45,736 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/data/5fcd77412/65ac6ca57e7e49baaf8b79a25fdde49c/FLAGc15ac3d18 [2019-11-20 11:25:46,119 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:25:46,119 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-11-20 11:25:46,124 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/data/5fcd77412/65ac6ca57e7e49baaf8b79a25fdde49c/FLAGc15ac3d18 [2019-11-20 11:25:46,574 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/data/5fcd77412/65ac6ca57e7e49baaf8b79a25fdde49c [2019-11-20 11:25:46,577 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:25:46,578 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:25:46,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:25:46,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:25:46,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:25:46,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:25:46" (1/1) ... [2019-11-20 11:25:46,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43264eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:46, skipping insertion in model container [2019-11-20 11:25:46,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:25:46" (1/1) ... [2019-11-20 11:25:46,595 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:25:46,613 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:25:46,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:25:46,764 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:25:46,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:25:46,802 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:25:46,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:46 WrapperNode [2019-11-20 11:25:46,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:25:46,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:25:46,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:25:46,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:25:46,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:46" (1/1) ... [2019-11-20 11:25:46,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:46" (1/1) ... [2019-11-20 11:25:46,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:25:46,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:25:46,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:25:46,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:25:46,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:46" (1/1) ... [2019-11-20 11:25:46,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:46" (1/1) ... [2019-11-20 11:25:46,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:46" (1/1) ... [2019-11-20 11:25:46,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:46" (1/1) ... [2019-11-20 11:25:46,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:46" (1/1) ... [2019-11-20 11:25:46,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:46" (1/1) ... [2019-11-20 11:25:46,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:46" (1/1) ... [2019-11-20 11:25:46,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:25:46,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:25:46,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:25:46,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:25:46,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/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 [2019-11-20 11:25:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:25:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:25:47,061 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:25:47,062 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 11:25:47,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:25:47 BoogieIcfgContainer [2019-11-20 11:25:47,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:25:47,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:25:47,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:25:47,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:25:47,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:25:46" (1/3) ... [2019-11-20 11:25:47,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433a2c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:25:47, skipping insertion in model container [2019-11-20 11:25:47,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:25:46" (2/3) ... [2019-11-20 11:25:47,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433a2c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:25:47, skipping insertion in model container [2019-11-20 11:25:47,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:25:47" (3/3) ... [2019-11-20 11:25:47,069 INFO L109 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2019-11-20 11:25:47,078 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:25:47,083 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 11:25:47,093 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 11:25:47,114 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:25:47,114 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 11:25:47,114 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:25:47,114 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:25:47,115 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:25:47,115 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:25:47,115 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:25:47,115 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:25:47,127 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-20 11:25:47,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-20 11:25:47,132 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:25:47,133 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-20 11:25:47,134 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:25:47,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:25:47,138 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-20 11:25:47,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:25:47,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1748806146] [2019-11-20 11:25:47,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/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 [2019-11-20 11:25:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:25:47,188 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 11:25:47,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:25:47,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:25:47,265 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:25:47,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 11:25:47,283 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1748806146] [2019-11-20 11:25:47,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:25:47,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-20 11:25:47,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984150628] [2019-11-20 11:25:47,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 11:25:47,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:25:47,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 11:25:47,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:25:47,303 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2019-11-20 11:25:47,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:25:47,324 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-11-20 11:25:47,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 11:25:47,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-11-20 11:25:47,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:25:47,333 INFO L225 Difference]: With dead ends: 12 [2019-11-20 11:25:47,333 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 11:25:47,336 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 11:25:47,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 11:25:47,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 11:25:47,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 11:25:47,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 11:25:47,356 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-11-20 11:25:47,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:25:47,357 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:25:47,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 11:25:47,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 11:25:47,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 11:25:47,559 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 11:25:47,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 11:25:47,616 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 11:25:47,616 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 11:25:47,616 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 11:25:47,616 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-20 11:25:47,617 INFO L440 ceAbstractionStarter]: At program point L11(lines 3 12) the Hoare annotation is: (and (= ULTIMATE.start_main_~fp~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 170141183460469231731687303715884105728.0))))) (= (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 170141183460469231731687303715884105728.0))) ULTIMATE.start_main_~d~0)) [2019-11-20 11:25:47,617 INFO L444 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2019-11-20 11:25:47,617 INFO L444 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2019-11-20 11:25:47,617 INFO L444 ceAbstractionStarter]: For program point L9-3(line 9) no Hoare annotation was computed. [2019-11-20 11:25:47,625 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:25:47,626 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:25:47,626 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:25:47,628 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:25:47,629 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:25:47,629 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:25:47,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:25:47 BoogieIcfgContainer [2019-11-20 11:25:47,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 11:25:47,633 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:25:47,633 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:25:47,633 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:25:47,634 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:25:47" (3/4) ... [2019-11-20 11:25:47,636 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 11:25:47,644 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 11:25:47,645 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 11:25:47,678 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_daa87125-0f42-42b7-846f-00e1e5cdb82c/bin/uautomizer/witness.graphml [2019-11-20 11:25:47,678 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:25:47,680 INFO L168 Benchmark]: Toolchain (without parser) took 1101.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 197.1 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-11-20 11:25:47,681 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:25:47,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.02 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:25:47,682 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 197.1 MB). Free memory was 951.0 MB in the beginning and 1.2 GB in the end (delta: -243.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-20 11:25:47,683 INFO L168 Benchmark]: Boogie Preprocessor took 15.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:25:47,683 INFO L168 Benchmark]: RCFGBuilder took 162.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2019-11-20 11:25:47,684 INFO L168 Benchmark]: TraceAbstraction took 568.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2019-11-20 11:25:47,684 INFO L168 Benchmark]: Witness Printer took 45.47 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. [2019-11-20 11:25:47,687 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 223.02 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.0 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 81.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 197.1 MB). Free memory was 951.0 MB in the beginning and 1.2 GB in the end (delta: -243.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 162.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 568.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Witness Printer took 45.47 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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 - InvariantResult [Line: 3]: Loop Invariant [2019-11-20 11:25:47,694 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:25:47,694 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:25:47,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:25:47,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:25:47,696 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 11:25:47,696 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: fp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/170141183460469231731687303715884105728))) && ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/170141183460469231731687303715884105728)) == d - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 15 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 3 NumberOfNonLiveVariables, 7 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...