./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 68aa61f206da468fa7dcfce700dfa7d384c1ee8e .......................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 68aa61f206da468fa7dcfce700dfa7d384c1ee8e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:49:32,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:49:32,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:49:32,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:49:32,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:49:32,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:49:32,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:49:32,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:49:32,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:49:32,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:49:32,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:49:32,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:49:32,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:49:32,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:49:32,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:49:32,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:49:32,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:49:32,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:49:32,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:49:32,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:49:32,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:49:32,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:49:32,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:49:32,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:49:32,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:49:32,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:49:32,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:49:32,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:49:32,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:49:32,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:49:32,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:49:32,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:49:32,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:49:32,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:49:32,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:49:32,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:49:32,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:49:32,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:49:32,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:49:32,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:49:32,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:49:32,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:49:32,915 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:49:32,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:49:32,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:49:32,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:49:32,917 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:49:32,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:49:32,918 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:49:32,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:49:32,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:49:32,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:49:32,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:49:32,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:49:32,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:49:32,919 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:49:32,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:49:32,920 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:49:32,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:49:32,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:49:32,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:49:32,921 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:49:32,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:49:32,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:49:32,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:49:32,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:49:32,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:49:32,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:49:32,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:49:32,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:49:32,923 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 68aa61f206da468fa7dcfce700dfa7d384c1ee8e [2019-11-27 23:49:33,245 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:49:33,261 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:49:33,265 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:49:33,266 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:49:33,266 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:49:33,268 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2019-11-27 23:49:33,340 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/575b3d86b/4dff8f92a3a24aea8f61bf2a45e95930/FLAG30f5ad0d7 [2019-11-27 23:49:33,857 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:49:33,858 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2019-11-27 23:49:33,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/575b3d86b/4dff8f92a3a24aea8f61bf2a45e95930/FLAG30f5ad0d7 [2019-11-27 23:49:34,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/575b3d86b/4dff8f92a3a24aea8f61bf2a45e95930 [2019-11-27 23:49:34,190 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:49:34,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:49:34,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:49:34,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:49:34,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:49:34,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:49:34" (1/1) ... [2019-11-27 23:49:34,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f061439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:34, skipping insertion in model container [2019-11-27 23:49:34,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:49:34" (1/1) ... [2019-11-27 23:49:34,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:49:34,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:49:34,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:49:34,485 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:49:34,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:49:34,614 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:49:34,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:34 WrapperNode [2019-11-27 23:49:34,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:49:34,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:49:34,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:49:34,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:49:34,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:34" (1/1) ... [2019-11-27 23:49:34,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:34" (1/1) ... [2019-11-27 23:49:34,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:49:34,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:49:34,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:49:34,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:49:34,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:34" (1/1) ... [2019-11-27 23:49:34,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:34" (1/1) ... [2019-11-27 23:49:34,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:34" (1/1) ... [2019-11-27 23:49:34,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:34" (1/1) ... [2019-11-27 23:49:34,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:34" (1/1) ... [2019-11-27 23:49:34,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:34" (1/1) ... [2019-11-27 23:49:34,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:34" (1/1) ... [2019-11-27 23:49:34,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:49:34,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:49:34,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:49:34,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:49:34,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-27 23:49:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:49:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-27 23:49:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 23:49:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-27 23:49:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:49:34,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:49:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 23:49:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:49:35,171 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:49:35,171 INFO L297 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-27 23:49:35,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:49:35 BoogieIcfgContainer [2019-11-27 23:49:35,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:49:35,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:49:35,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:49:35,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:49:35,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:49:34" (1/3) ... [2019-11-27 23:49:35,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286c08bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:49:35, skipping insertion in model container [2019-11-27 23:49:35,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:34" (2/3) ... [2019-11-27 23:49:35,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286c08bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:49:35, skipping insertion in model container [2019-11-27 23:49:35,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:49:35" (3/3) ... [2019-11-27 23:49:35,181 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c [2019-11-27 23:49:35,191 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:49:35,200 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:49:35,212 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:49:35,233 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:49:35,234 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:49:35,234 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:49:35,234 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:49:35,234 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:49:35,234 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:49:35,234 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:49:35,235 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:49:35,248 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-27 23:49:35,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-27 23:49:35,254 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:49:35,255 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:49:35,256 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:49:35,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:49:35,262 INFO L82 PathProgramCache]: Analyzing trace with hash 627170052, now seen corresponding path program 1 times [2019-11-27 23:49:35,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:49:35,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020456721] [2019-11-27 23:49:35,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:49:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:49:35,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:49:35,402 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020456721] [2019-11-27 23:49:35,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:49:35,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 23:49:35,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021474435] [2019-11-27 23:49:35,410 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:49:35,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:49:35,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:49:35,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:49:35,429 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-27 23:49:35,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:49:35,460 INFO L93 Difference]: Finished difference Result 71 states and 112 transitions. [2019-11-27 23:49:35,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:49:35,461 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-27 23:49:35,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:49:35,472 INFO L225 Difference]: With dead ends: 71 [2019-11-27 23:49:35,472 INFO L226 Difference]: Without dead ends: 33 [2019-11-27 23:49:35,477 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:49:35,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-27 23:49:35,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-27 23:49:35,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-27 23:49:35,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2019-11-27 23:49:35,508 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 11 [2019-11-27 23:49:35,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:49:35,508 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2019-11-27 23:49:35,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:49:35,509 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2019-11-27 23:49:35,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:49:35,509 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:49:35,510 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:49:35,510 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:49:35,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:49:35,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1650641455, now seen corresponding path program 1 times [2019-11-27 23:49:35,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:49:35,511 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045742406] [2019-11-27 23:49:35,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:49:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:49:35,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:49:35,572 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045742406] [2019-11-27 23:49:35,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:49:35,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 23:49:35,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779339124] [2019-11-27 23:49:35,575 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 23:49:35,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:49:35,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 23:49:35,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 23:49:35,576 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand 3 states. [2019-11-27 23:49:35,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:49:35,599 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2019-11-27 23:49:35,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:49:35,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-27 23:49:35,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:49:35,601 INFO L225 Difference]: With dead ends: 59 [2019-11-27 23:49:35,601 INFO L226 Difference]: Without dead ends: 33 [2019-11-27 23:49:35,602 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 23:49:35,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-27 23:49:35,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-27 23:49:35,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-27 23:49:35,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-11-27 23:49:35,608 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 12 [2019-11-27 23:49:35,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:49:35,608 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-11-27 23:49:35,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 23:49:35,608 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-11-27 23:49:35,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-27 23:49:35,609 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:49:35,609 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:49:35,610 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:49:35,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:49:35,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1227406364, now seen corresponding path program 1 times [2019-11-27 23:49:35,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:49:35,611 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876665486] [2019-11-27 23:49:35,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:49:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:49:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:49:35,754 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:49:35,754 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:49:35,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:49:35 BoogieIcfgContainer [2019-11-27 23:49:35,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:49:35,818 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:49:35,818 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:49:35,818 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:49:35,819 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:49:35" (3/4) ... [2019-11-27 23:49:35,822 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:49:35,823 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:49:35,825 INFO L168 Benchmark]: Toolchain (without parser) took 1632.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -98.9 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. [2019-11-27 23:49:35,826 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:49:35,827 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-27 23:49:35,827 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.15 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. [2019-11-27 23:49:35,828 INFO L168 Benchmark]: Boogie Preprocessor took 35.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:49:35,829 INFO L168 Benchmark]: RCFGBuilder took 463.38 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-27 23:49:35,830 INFO L168 Benchmark]: TraceAbstraction took 643.78 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2019-11-27 23:49:35,831 INFO L168 Benchmark]: Witness Printer took 4.57 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. [2019-11-27 23:49:35,835 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 422.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.15 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 35.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 463.38 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 643.78 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.57 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: 140]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L24-L28] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L30] static const float zero_log = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L132] float x = __VERIFIER_nondet_float(); [L134] EXPR x < 0 && isfinite_float(x) [L115] __int32_t ix; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L117] ieee_float_shape_type gf_u; [L118] gf_u.value = (x) [L119] EXPR gf_u.word [L119] (ix) = gf_u.word [L121] ix &= 0x7fffffff [L122] return (((ix) < 0x7f800000L)); VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L134] EXPR x < 0 && isfinite_float(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L134] COND TRUE (x < 0 && isfinite_float(x)) [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L37] ieee_float_shape_type gf_u; [L38] gf_u.value = (x) [L39] EXPR gf_u.word [L39] (ix) = gf_u.word [L42] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L136] float res = __ieee754_logf(x); [L111] return x != x; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L139] COND TRUE !isnan_float(res) [L140] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 93 SDtfs, 0 SDslu, 39 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 232 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:49:37,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:49:37,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:49:37,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:49:37,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:49:37,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:49:37,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:49:37,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:49:37,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:49:37,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:49:37,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:49:37,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:49:37,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:49:37,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:49:37,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:49:37,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:49:37,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:49:37,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:49:37,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:49:37,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:49:37,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:49:37,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:49:37,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:49:37,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:49:37,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:49:37,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:49:37,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:49:37,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:49:37,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:49:37,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:49:37,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:49:37,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:49:37,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:49:37,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:49:37,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:49:37,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:49:37,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:49:37,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:49:37,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:49:37,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:49:37,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:49:37,927 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:49:37,942 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:49:37,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:49:37,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:49:37,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:49:37,945 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:49:37,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:49:37,946 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:49:37,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:49:37,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:49:37,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:49:37,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:49:37,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:49:37,947 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:49:37,947 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:49:37,948 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:49:37,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:49:37,948 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:49:37,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:49:37,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:49:37,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:49:37,949 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:49:37,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:49:37,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:49:37,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:49:37,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:49:37,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:49:37,950 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:49:37,951 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:49:37,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:49:37,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:49:37,951 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 68aa61f206da468fa7dcfce700dfa7d384c1ee8e [2019-11-27 23:49:38,255 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:49:38,272 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:49:38,276 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:49:38,278 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:49:38,278 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:49:38,280 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2019-11-27 23:49:38,349 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75cd8374/f95da3d4628146838f84e67495fca2f2/FLAGd206557af [2019-11-27 23:49:38,814 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:49:38,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2019-11-27 23:49:38,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75cd8374/f95da3d4628146838f84e67495fca2f2/FLAGd206557af [2019-11-27 23:49:39,160 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75cd8374/f95da3d4628146838f84e67495fca2f2 [2019-11-27 23:49:39,163 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:49:39,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:49:39,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:49:39,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:49:39,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:49:39,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:49:39" (1/1) ... [2019-11-27 23:49:39,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f3f92b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:39, skipping insertion in model container [2019-11-27 23:49:39,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:49:39" (1/1) ... [2019-11-27 23:49:39,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:49:39,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:49:39,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:49:39,436 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:49:39,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:49:39,610 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:49:39,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:39 WrapperNode [2019-11-27 23:49:39,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:49:39,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:49:39,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:49:39,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:49:39,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:39" (1/1) ... [2019-11-27 23:49:39,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:39" (1/1) ... [2019-11-27 23:49:39,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:49:39,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:49:39,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:49:39,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:49:39,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:39" (1/1) ... [2019-11-27 23:49:39,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:39" (1/1) ... [2019-11-27 23:49:39,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:39" (1/1) ... [2019-11-27 23:49:39,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:39" (1/1) ... [2019-11-27 23:49:39,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:39" (1/1) ... [2019-11-27 23:49:39,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:39" (1/1) ... [2019-11-27 23:49:39,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:39" (1/1) ... [2019-11-27 23:49:39,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:49:39,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:49:39,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:49:39,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:49:39,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-27 23:49:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:49:39,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-27 23:49:39,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-27 23:49:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:49:39,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:49:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-27 23:49:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-27 23:49:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:49:52,619 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:49:52,620 INFO L297 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-27 23:49:52,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:49:52 BoogieIcfgContainer [2019-11-27 23:49:52,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:49:52,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:49:52,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:49:52,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:49:52,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:49:39" (1/3) ... [2019-11-27 23:49:52,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729afb26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:49:52, skipping insertion in model container [2019-11-27 23:49:52,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:49:39" (2/3) ... [2019-11-27 23:49:52,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729afb26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:49:52, skipping insertion in model container [2019-11-27 23:49:52,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:49:52" (3/3) ... [2019-11-27 23:49:52,631 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c [2019-11-27 23:49:52,642 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:49:52,651 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:49:52,664 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:49:52,696 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:49:52,696 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:49:52,696 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:49:52,696 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:49:52,697 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:49:52,697 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:49:52,697 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:49:52,697 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:49:52,711 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-27 23:49:52,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-27 23:49:52,720 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:49:52,721 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:49:52,721 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:49:52,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:49:52,728 INFO L82 PathProgramCache]: Analyzing trace with hash 627170052, now seen corresponding path program 1 times [2019-11-27 23:49:52,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:49:52,738 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052701940] [2019-11-27 23:49:52,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-27 23:49:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:49:53,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-27 23:49:53,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:49:53,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:49:53,313 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:49:53,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:49:53,319 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052701940] [2019-11-27 23:49:53,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:49:53,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-27 23:49:53,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648356020] [2019-11-27 23:49:53,326 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:49:53,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:49:53,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:49:53,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:49:53,344 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-27 23:49:53,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:49:53,367 INFO L93 Difference]: Finished difference Result 71 states and 112 transitions. [2019-11-27 23:49:53,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:49:53,369 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-27 23:49:53,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:49:53,381 INFO L225 Difference]: With dead ends: 71 [2019-11-27 23:49:53,381 INFO L226 Difference]: Without dead ends: 33 [2019-11-27 23:49:53,385 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:49:53,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-27 23:49:53,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-27 23:49:53,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-27 23:49:53,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2019-11-27 23:49:53,421 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 11 [2019-11-27 23:49:53,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:49:53,422 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2019-11-27 23:49:53,422 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:49:53,422 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2019-11-27 23:49:53,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:49:53,423 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:49:53,423 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:49:53,626 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:49:53,627 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:49:53,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:49:53,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1650641455, now seen corresponding path program 1 times [2019-11-27 23:49:53,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:49:53,631 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033210906] [2019-11-27 23:49:53,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-27 23:49:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:49:54,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-27 23:49:54,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:49:54,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:49:54,232 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:49:54,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:49:54,235 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033210906] [2019-11-27 23:49:54,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:49:54,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-27 23:49:54,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476863663] [2019-11-27 23:49:54,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 23:49:54,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:49:54,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 23:49:54,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 23:49:54,239 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand 3 states. [2019-11-27 23:49:54,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:49:54,280 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2019-11-27 23:49:54,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:49:54,281 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-27 23:49:54,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:49:54,282 INFO L225 Difference]: With dead ends: 59 [2019-11-27 23:49:54,283 INFO L226 Difference]: Without dead ends: 33 [2019-11-27 23:49:54,284 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 23:49:54,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-27 23:49:54,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-27 23:49:54,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-27 23:49:54,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-11-27 23:49:54,290 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 12 [2019-11-27 23:49:54,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:49:54,291 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-11-27 23:49:54,291 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 23:49:54,291 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-11-27 23:49:54,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-27 23:49:54,292 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:49:54,292 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:49:54,506 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 23:49:54,507 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:49:54,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:49:54,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1227406364, now seen corresponding path program 1 times [2019-11-27 23:49:54,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:49:54,512 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071927542] [2019-11-27 23:49:54,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-27 23:49:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:49:55,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-27 23:49:55,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:49:55,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:49:55,282 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:49:55,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:49:55,518 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071927542] [2019-11-27 23:49:55,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:49:55,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-27 23:49:55,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114511718] [2019-11-27 23:49:55,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-27 23:49:55,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:49:55,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-27 23:49:55,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-27 23:49:55,521 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 10 states. [2019-11-27 23:49:56,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:49:56,081 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2019-11-27 23:49:56,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-27 23:49:56,131 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2019-11-27 23:49:56,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:49:56,132 INFO L225 Difference]: With dead ends: 38 [2019-11-27 23:49:56,132 INFO L226 Difference]: Without dead ends: 18 [2019-11-27 23:49:56,133 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2019-11-27 23:49:56,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-27 23:49:56,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-27 23:49:56,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-27 23:49:56,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-11-27 23:49:56,137 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-11-27 23:49:56,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:49:56,137 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-11-27 23:49:56,137 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-27 23:49:56,138 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-11-27 23:49:56,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-27 23:49:56,138 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:49:56,139 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:49:56,340 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-27 23:49:56,341 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:49:56,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:49:56,342 INFO L82 PathProgramCache]: Analyzing trace with hash -618100041, now seen corresponding path program 1 times [2019-11-27 23:49:56,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:49:56,344 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097037178] [2019-11-27 23:49:56,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-27 23:49:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:49:57,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-27 23:49:57,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:49:57,192 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:49:57,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:49:57,299 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:49:59,397 WARN L192 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2019-11-27 23:49:59,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:49:59,409 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097037178] [2019-11-27 23:49:59,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:49:59,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-27 23:49:59,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051722861] [2019-11-27 23:49:59,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-27 23:49:59,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:49:59,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-27 23:49:59,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-11-27 23:49:59,412 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 10 states. [2019-11-27 23:50:00,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:50:00,320 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-11-27 23:50:00,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-27 23:50:00,320 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-11-27 23:50:00,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:50:00,321 INFO L225 Difference]: With dead ends: 18 [2019-11-27 23:50:00,321 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 23:50:00,322 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2019-11-27 23:50:00,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 23:50:00,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 23:50:00,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 23:50:00,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 23:50:00,323 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-27 23:50:00,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:50:00,324 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 23:50:00,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-27 23:50:00,324 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 23:50:00,324 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 23:50:00,525 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-27 23:50:00,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 23:50:00,891 INFO L246 CegarLoopResult]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2019-11-27 23:50:00,891 INFO L242 CegarLoopResult]: At program point L52-2(lines 52 56) the Hoare annotation is: false [2019-11-27 23:50:00,891 INFO L246 CegarLoopResult]: For program point L69(lines 69 76) no Hoare annotation was computed. [2019-11-27 23:50:00,892 INFO L246 CegarLoopResult]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2019-11-27 23:50:00,893 INFO L242 CegarLoopResult]: At program point L36-2(lines 36 40) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start___ieee754_logf_~x ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-27 23:50:00,893 INFO L246 CegarLoopResult]: For program point L36-3(lines 36 40) no Hoare annotation was computed. [2019-11-27 23:50:00,893 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 23:50:00,894 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 23:50:00,894 INFO L246 CegarLoopResult]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2019-11-27 23:50:00,894 INFO L242 CegarLoopResult]: At program point L61-2(lines 61 65) the Hoare annotation is: false [2019-11-27 23:50:00,894 INFO L246 CegarLoopResult]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2019-11-27 23:50:00,895 INFO L242 CegarLoopResult]: At program point L111(line 111) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (not (fp.eq |ULTIMATE.start___ieee754_logf_#res| |ULTIMATE.start___ieee754_logf_#res|)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1)) ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start___ieee754_logf_~x ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-27 23:50:00,895 INFO L246 CegarLoopResult]: For program point L78(lines 78 83) no Hoare annotation was computed. [2019-11-27 23:50:00,895 INFO L246 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-11-27 23:50:00,895 INFO L246 CegarLoopResult]: For program point L103(lines 103 106) no Hoare annotation was computed. [2019-11-27 23:50:00,896 INFO L246 CegarLoopResult]: For program point L70(lines 70 75) no Hoare annotation was computed. [2019-11-27 23:50:00,896 INFO L246 CegarLoopResult]: For program point L95(lines 95 107) no Hoare annotation was computed. [2019-11-27 23:50:00,896 INFO L249 CegarLoopResult]: At program point L145(lines 125 146) the Hoare annotation is: true [2019-11-27 23:50:00,897 INFO L246 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2019-11-27 23:50:00,897 INFO L246 CegarLoopResult]: For program point L97(lines 97 101) no Hoare annotation was computed. [2019-11-27 23:50:00,899 INFO L242 CegarLoopResult]: At program point L122(lines 114 123) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) |ULTIMATE.start_main_#t~short12| (= currentRoundingMode roundNearestTiesToEven)) [2019-11-27 23:50:00,899 INFO L246 CegarLoopResult]: For program point L139(lines 139 142) no Hoare annotation was computed. [2019-11-27 23:50:00,899 INFO L242 CegarLoopResult]: At program point L106(lines 32 108) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (not (fp.eq |ULTIMATE.start___ieee754_logf_#res| |ULTIMATE.start___ieee754_logf_#res|)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1)) ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start___ieee754_logf_~x ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-27 23:50:00,900 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 23:50:00,900 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2019-11-27 23:50:00,900 INFO L246 CegarLoopResult]: For program point L49(lines 49 57) no Hoare annotation was computed. [2019-11-27 23:50:00,901 INFO L246 CegarLoopResult]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2019-11-27 23:50:00,901 INFO L246 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2019-11-27 23:50:00,901 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 23:50:00,902 INFO L246 CegarLoopResult]: For program point L116-1(lines 116 120) no Hoare annotation was computed. [2019-11-27 23:50:00,902 INFO L242 CegarLoopResult]: At program point L116-2(lines 116 120) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) |ULTIMATE.start_main_#t~short12| (= currentRoundingMode roundNearestTiesToEven)) [2019-11-27 23:50:00,902 INFO L246 CegarLoopResult]: For program point L116-3(lines 116 120) no Hoare annotation was computed. [2019-11-27 23:50:00,902 INFO L246 CegarLoopResult]: For program point L43(lines 43 44) no Hoare annotation was computed. [2019-11-27 23:50:00,903 INFO L246 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2019-11-27 23:50:00,904 INFO L246 CegarLoopResult]: For program point L134-2(lines 134 143) no Hoare annotation was computed. [2019-11-27 23:50:00,909 INFO L246 CegarLoopResult]: For program point L68(lines 68 84) no Hoare annotation was computed. [2019-11-27 23:50:00,910 INFO L246 CegarLoopResult]: For program point L134-4(lines 134 143) no Hoare annotation was computed. [2019-11-27 23:50:00,924 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,929 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,929 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,934 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:00,937 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,938 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,943 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,944 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,944 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,945 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:00,946 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,946 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,947 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,948 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:00,948 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,949 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,950 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,950 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:00,951 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,951 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,951 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,952 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,962 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,963 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:00,964 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,964 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,965 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,965 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,966 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,966 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:00,966 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,967 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,967 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,968 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:00,969 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,969 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,970 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,971 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:00,971 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,971 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,973 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,976 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,977 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:00,979 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,980 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,981 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,988 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:00,988 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:00,989 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,989 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:00,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:50:00 BoogieIcfgContainer [2019-11-27 23:50:00,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:50:00,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:50:00,995 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:50:00,995 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:50:00,996 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:49:52" (3/4) ... [2019-11-27 23:50:01,000 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 23:50:01,017 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2019-11-27 23:50:01,017 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-27 23:50:01,017 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-27 23:50:01,043 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && aux-x < 0 && isfinite_float(x)-aux) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-27 23:50:01,043 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && aux-x < 0 && isfinite_float(x)-aux) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-27 23:50:01,044 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-27 23:50:01,044 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && !~fp.eq~FLOAT(\result, \result)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-27 23:50:01,045 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && !~fp.eq~FLOAT(\result, \result)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-27 23:50:01,123 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:50:01,127 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:50:01,129 INFO L168 Benchmark]: Toolchain (without parser) took 21964.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 955.0 MB in the beginning and 911.2 MB in the end (delta: 43.8 MB). Peak memory consumption was 160.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:50:01,130 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:50:01,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:50:01,131 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:50:01,131 INFO L168 Benchmark]: Boogie Preprocessor took 44.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:50:01,133 INFO L168 Benchmark]: RCFGBuilder took 12899.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:50:01,134 INFO L168 Benchmark]: TraceAbstraction took 8371.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 918.0 MB in the end (delta: 154.5 MB). Peak memory consumption was 154.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:50:01,134 INFO L168 Benchmark]: Witness Printer took 132.63 ms. Allocated memory is still 1.1 GB. Free memory is still 911.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:50:01,137 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 445.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 12899.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8371.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 918.0 MB in the end (delta: 154.5 MB). Peak memory consumption was 154.5 MB. Max. memory is 11.5 GB. * Witness Printer took 132.63 ms. Allocated memory is still 1.1 GB. Free memory is still 911.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 140]: 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: 111]: Loop Invariant [2019-11-27 23:50:01,150 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,150 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,150 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,151 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:01,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:01,152 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:01,152 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,153 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,153 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,153 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:01,153 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:01,153 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((1bv32 == \result && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && !~fp.eq~FLOAT(\result, \result)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 114]: Loop Invariant [2019-11-27 23:50:01,154 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,154 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:01,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:01,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:01,155 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,156 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:01,156 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:01,156 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && aux-x < 0 && isfinite_float(x)-aux) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 32]: Loop Invariant [2019-11-27 23:50:01,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:01,158 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:01,158 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:01,159 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,159 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,159 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:01,160 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:01,160 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && !~fp.eq~FLOAT(\result, \result)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 116]: Loop Invariant [2019-11-27 23:50:01,161 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,162 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:01,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:01,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:01,163 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,163 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:01,163 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:01,163 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && aux-x < 0 && isfinite_float(x)-aux) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 36]: Loop Invariant [2019-11-27 23:50:01,164 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,164 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,165 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:01,165 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:01,165 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:01,166 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,166 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:50:01,166 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:50:01,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:50:01,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: SAFE, OverallTime: 7.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 116 SDtfs, 38 SDslu, 115 SDs, 0 SdLazy, 35 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 14 NumberOfFragments, 133 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 104 ConstructedInterpolants, 30 QuantifiedInterpolants, 9688 SizeOfPredicates, 17 NumberOfNonLiveVariables, 205 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...