./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0480.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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_0480.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bd6800513a0c85eb15605681f4c7c21ff95d3a8c ................................................................................................................................................................................................................................................................................................... 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 -Xmx15G -Xms4m -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_0480.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bd6800513a0c85eb15605681f4c7c21ff95d3a8c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:34:36,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:34:36,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:34:36,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:34:36,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:34:36,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:34:36,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:34:36,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:34:36,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:34:36,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:34:36,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:34:36,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:34:36,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:34:36,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:34:36,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:34:36,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:34:36,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:34:36,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:34:36,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:34:36,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:34:36,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:34:36,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:34:36,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:34:36,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:34:36,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:34:36,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:34:36,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:34:36,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:34:36,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:34:36,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:34:36,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:34:36,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:34:36,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:34:36,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:34:36,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:34:36,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:34:36,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:34:36,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:34:36,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:34:36,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:34:36,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:34:36,291 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:34:36,324 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:34:36,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:34:36,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:34:36,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:34:36,329 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:34:36,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:34:36,329 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:34:36,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:34:36,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:34:36,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:34:36,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:34:36,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:34:36,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:34:36,332 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:34:36,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:34:36,332 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:34:36,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:34:36,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:34:36,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:34:36,334 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:34:36,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:34:36,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:34:36,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:34:36,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:34:36,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:34:36,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:34:36,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:34:36,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:34:36,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:34:36,337 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(reach_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 -> bd6800513a0c85eb15605681f4c7c21ff95d3a8c [2020-10-20 00:34:36,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:34:36,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:34:36,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:34:36,629 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:34:36,630 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:34:36,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2020-10-20 00:34:36,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfb081722/e8007a1e6da84a479439ec5f21b39ef2/FLAGf1db40328 [2020-10-20 00:34:37,192 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:34:37,193 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2020-10-20 00:34:37,202 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfb081722/e8007a1e6da84a479439ec5f21b39ef2/FLAGf1db40328 [2020-10-20 00:34:37,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfb081722/e8007a1e6da84a479439ec5f21b39ef2 [2020-10-20 00:34:37,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:34:37,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:34:37,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:34:37,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:34:37,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:34:37,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:34:37" (1/1) ... [2020-10-20 00:34:37,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32244f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:37, skipping insertion in model container [2020-10-20 00:34:37,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:34:37" (1/1) ... [2020-10-20 00:34:37,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:34:37,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:34:37,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:34:37,959 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:34:38,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:34:38,027 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:34:38,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:38 WrapperNode [2020-10-20 00:34:38,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:34:38,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:34:38,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:34:38,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:34:38,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:38" (1/1) ... [2020-10-20 00:34:38,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:38" (1/1) ... [2020-10-20 00:34:38,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:34:38,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:34:38,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:34:38,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:34:38,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:38" (1/1) ... [2020-10-20 00:34:38,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:38" (1/1) ... [2020-10-20 00:34:38,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:38" (1/1) ... [2020-10-20 00:34:38,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:38" (1/1) ... [2020-10-20 00:34:38,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:38" (1/1) ... [2020-10-20 00:34:38,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:38" (1/1) ... [2020-10-20 00:34:38,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:38" (1/1) ... [2020-10-20 00:34:38,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:34:38,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:34:38,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:34:38,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:34:38,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:38" (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 [2020-10-20 00:34:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:34:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:34:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-20 00:34:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:34:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-20 00:34:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:34:38,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:34:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:34:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:34:38,877 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:34:38,877 INFO L298 CfgBuilder]: Removed 34 assume(true) statements. [2020-10-20 00:34:38,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:34:38 BoogieIcfgContainer [2020-10-20 00:34:38,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:34:38,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:34:38,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:34:38,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:34:38,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:34:37" (1/3) ... [2020-10-20 00:34:38,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@347d4be5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:34:38, skipping insertion in model container [2020-10-20 00:34:38,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:38" (2/3) ... [2020-10-20 00:34:38,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@347d4be5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:34:38, skipping insertion in model container [2020-10-20 00:34:38,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:34:38" (3/3) ... [2020-10-20 00:34:38,890 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2020-10-20 00:34:38,902 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:34:38,911 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:34:38,933 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:34:38,958 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:34:38,959 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:34:38,959 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:34:38,959 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:34:38,959 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:34:38,959 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:34:38,960 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:34:38,960 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:34:38,977 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-10-20 00:34:38,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 00:34:38,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:34:38,985 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:34:38,985 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:34:38,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:34:38,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1036093437, now seen corresponding path program 1 times [2020-10-20 00:34:38,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:34:39,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546344573] [2020-10-20 00:34:39,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:34:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:34:39,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:34:39,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546344573] [2020-10-20 00:34:39,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:34:39,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:34:39,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122990937] [2020-10-20 00:34:39,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:34:39,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:34:39,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:34:39,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:34:39,171 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2020-10-20 00:34:39,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:34:39,202 INFO L93 Difference]: Finished difference Result 151 states and 249 transitions. [2020-10-20 00:34:39,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:34:39,203 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-20 00:34:39,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:34:39,217 INFO L225 Difference]: With dead ends: 151 [2020-10-20 00:34:39,217 INFO L226 Difference]: Without dead ends: 73 [2020-10-20 00:34:39,221 INFO L677 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 [2020-10-20 00:34:39,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-20 00:34:39,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-20 00:34:39,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-20 00:34:39,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2020-10-20 00:34:39,270 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 10 [2020-10-20 00:34:39,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:34:39,271 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2020-10-20 00:34:39,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:34:39,271 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2020-10-20 00:34:39,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:34:39,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:34:39,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:34:39,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:34:39,273 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:34:39,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:34:39,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1299213760, now seen corresponding path program 1 times [2020-10-20 00:34:39,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:34:39,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266672915] [2020-10-20 00:34:39,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:34:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:34:39,326 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:34:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:34:39,381 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:34:39,412 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:34:39,413 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:34:39,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:34:39,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:34:39 BoogieIcfgContainer [2020-10-20 00:34:39,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:34:39,480 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:34:39,480 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:34:39,481 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:34:39,482 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:34:38" (3/4) ... [2020-10-20 00:34:39,487 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:34:39,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:34:39,492 INFO L168 Benchmark]: Toolchain (without parser) took 1932.26 ms. Allocated memory was 36.2 MB in the beginning and 50.3 MB in the end (delta: 14.2 MB). Free memory was 9.8 MB in the beginning and 23.7 MB in the end (delta: -13.9 MB). Peak memory consumption was 254.5 kB. Max. memory is 14.3 GB. [2020-10-20 00:34:39,493 INFO L168 Benchmark]: CDTParser took 0.93 ms. Allocated memory is still 36.2 MB. Free memory is still 15.2 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 00:34:39,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 465.37 ms. Allocated memory was 36.2 MB in the beginning and 45.1 MB in the end (delta: 8.9 MB). Free memory was 8.8 MB in the beginning and 23.2 MB in the end (delta: -14.4 MB). Peak memory consumption was 7.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:39,496 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.38 ms. Allocated memory is still 45.1 MB. Free memory was 23.1 MB in the beginning and 20.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:39,497 INFO L168 Benchmark]: Boogie Preprocessor took 52.30 ms. Allocated memory is still 45.1 MB. Free memory was 20.3 MB in the beginning and 17.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:39,498 INFO L168 Benchmark]: RCFGBuilder took 728.46 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 17.6 MB in the beginning and 12.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:39,500 INFO L168 Benchmark]: TraceAbstraction took 598.48 ms. Allocated memory was 47.2 MB in the beginning and 50.3 MB in the end (delta: 3.1 MB). Free memory was 12.6 MB in the beginning and 24.1 MB in the end (delta: -11.5 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:39,502 INFO L168 Benchmark]: Witness Printer took 6.72 ms. Allocated memory is still 50.3 MB. Free memory was 24.1 MB in the beginning and 23.7 MB in the end (delta: 399.0 kB). Peak memory consumption was 399.0 kB. Max. memory is 14.3 GB. [2020-10-20 00:34:39,520 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93 ms. Allocated memory is still 36.2 MB. Free memory is still 15.2 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 465.37 ms. Allocated memory was 36.2 MB in the beginning and 45.1 MB in the end (delta: 8.9 MB). Free memory was 8.8 MB in the beginning and 23.2 MB in the end (delta: -14.4 MB). Peak memory consumption was 7.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 70.38 ms. Allocated memory is still 45.1 MB. Free memory was 23.1 MB in the beginning and 20.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 52.30 ms. Allocated memory is still 45.1 MB. Free memory was 20.3 MB in the beginning and 17.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 728.46 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 17.6 MB in the beginning and 12.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 598.48 ms. Allocated memory was 47.2 MB in the beginning and 50.3 MB in the end (delta: 3.1 MB). Free memory was 12.6 MB in the beginning and 24.1 MB in the end (delta: -11.5 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. * Witness Printer took 6.72 ms. Allocated memory is still 50.3 MB. Free memory was 24.1 MB in the beginning and 23.7 MB in the end (delta: 399.0 kB). Peak memory consumption was 399.0 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 183, overapproximation of someUnaryDOUBLEoperation at line 86, overapproximation of bitwiseAnd at line 100. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L83-L90] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L179] float x = 1.0f; [L93] float z, p, q, r, w, s, c, df; [L94] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L96] ieee_float_shape_type gf_u; [L97] gf_u.value = (x) [L98] EXPR gf_u.word [L98] (hx) = gf_u.word [L100] ix = hx & 0x7fffffff VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L101] COND TRUE ix == 0x3f800000 VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L102] COND TRUE hx > 0 [L103] return 0.0; VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L180] float res = __ieee754_acosf(x); [L183] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L183] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_0480.c", 3, "reach_error") VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 104 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: 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 0.1.25-9a8b2e8 [2020-10-20 00:34:41,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:34:41,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:34:41,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:34:41,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:34:41,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:34:41,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:34:41,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:34:41,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:34:41,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:34:41,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:34:41,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:34:41,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:34:41,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:34:41,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:34:41,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:34:41,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:34:41,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:34:41,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:34:41,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:34:41,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:34:41,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:34:41,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:34:41,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:34:41,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:34:41,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:34:41,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:34:41,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:34:41,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:34:41,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:34:41,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:34:41,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:34:41,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:34:41,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:34:41,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:34:41,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:34:41,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:34:41,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:34:41,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:34:41,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:34:41,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:34:41,830 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:34:41,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:34:41,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:34:41,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:34:41,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:34:41,858 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:34:41,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:34:41,858 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:34:41,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:34:41,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:34:41,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:34:41,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:34:41,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:34:41,860 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:34:41,860 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:34:41,860 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:34:41,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:34:41,861 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:34:41,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:34:41,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:34:41,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:34:41,862 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:34:41,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:34:41,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:34:41,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:34:41,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:34:41,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:34:41,864 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:34:41,864 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:34:41,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:34:41,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:34:41,865 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:34:41,865 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(reach_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 -> bd6800513a0c85eb15605681f4c7c21ff95d3a8c [2020-10-20 00:34:42,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:34:42,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:34:42,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:34:42,087 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:34:42,088 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:34:42,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2020-10-20 00:34:42,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09d3ca587/0e67d6d9e4a446e0bda1f453526c4efa/FLAGf63da5dea [2020-10-20 00:34:42,653 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:34:42,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2020-10-20 00:34:42,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09d3ca587/0e67d6d9e4a446e0bda1f453526c4efa/FLAGf63da5dea [2020-10-20 00:34:43,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09d3ca587/0e67d6d9e4a446e0bda1f453526c4efa [2020-10-20 00:34:43,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:34:43,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:34:43,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:34:43,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:34:43,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:34:43,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:34:43" (1/1) ... [2020-10-20 00:34:43,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4db66c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:43, skipping insertion in model container [2020-10-20 00:34:43,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:34:43" (1/1) ... [2020-10-20 00:34:43,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:34:43,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:34:43,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:34:43,538 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:34:43,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:34:43,612 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:34:43,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:43 WrapperNode [2020-10-20 00:34:43,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:34:43,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:34:43,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:34:43,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:34:43,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:43" (1/1) ... [2020-10-20 00:34:43,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:43" (1/1) ... [2020-10-20 00:34:43,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:34:43,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:34:43,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:34:43,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:34:43,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:43" (1/1) ... [2020-10-20 00:34:43,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:43" (1/1) ... [2020-10-20 00:34:43,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:43" (1/1) ... [2020-10-20 00:34:43,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:43" (1/1) ... [2020-10-20 00:34:43,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:43" (1/1) ... [2020-10-20 00:34:43,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:43" (1/1) ... [2020-10-20 00:34:43,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:43" (1/1) ... [2020-10-20 00:34:43,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:34:43,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:34:43,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:34:43,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:34:43,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:43" (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 [2020-10-20 00:34:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:34:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:34:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-20 00:34:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 00:34:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:34:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:34:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-20 00:34:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 00:34:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:34:55,687 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:34:55,688 INFO L298 CfgBuilder]: Removed 34 assume(true) statements. [2020-10-20 00:34:55,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:34:55 BoogieIcfgContainer [2020-10-20 00:34:55,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:34:55,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:34:55,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:34:55,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:34:55,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:34:43" (1/3) ... [2020-10-20 00:34:55,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9021d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:34:55, skipping insertion in model container [2020-10-20 00:34:55,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:34:43" (2/3) ... [2020-10-20 00:34:55,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9021d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:34:55, skipping insertion in model container [2020-10-20 00:34:55,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:34:55" (3/3) ... [2020-10-20 00:34:55,700 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2020-10-20 00:34:55,712 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:34:55,721 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:34:55,732 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:34:55,766 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:34:55,766 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:34:55,766 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:34:55,767 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:34:55,767 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:34:55,767 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:34:55,767 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:34:55,767 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:34:55,784 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-10-20 00:34:55,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 00:34:55,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:34:55,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:34:55,791 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:34:55,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:34:55,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1036093437, now seen corresponding path program 1 times [2020-10-20 00:34:55,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:34:55,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082743476] [2020-10-20 00:34:55,810 INFO L95 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 [2020-10-20 00:34:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:34:56,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 00:34:56,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:34:56,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:34:56,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:34:56,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:34:56,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082743476] [2020-10-20 00:34:56,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:34:56,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 00:34:56,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013540098] [2020-10-20 00:34:56,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:34:56,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:34:56,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:34:56,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:34:56,458 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2020-10-20 00:34:56,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:34:56,502 INFO L93 Difference]: Finished difference Result 151 states and 249 transitions. [2020-10-20 00:34:56,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:34:56,503 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-20 00:34:56,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:34:56,513 INFO L225 Difference]: With dead ends: 151 [2020-10-20 00:34:56,513 INFO L226 Difference]: Without dead ends: 73 [2020-10-20 00:34:56,516 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:34:56,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-20 00:34:56,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-20 00:34:56,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-20 00:34:56,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2020-10-20 00:34:56,555 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 10 [2020-10-20 00:34:56,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:34:56,555 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2020-10-20 00:34:56,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:34:56,556 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2020-10-20 00:34:56,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:34:56,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:34:56,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:34:56,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:34:56,758 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:34:56,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:34:56,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1299213760, now seen corresponding path program 1 times [2020-10-20 00:34:56,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:34:56,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79007842] [2020-10-20 00:34:56,761 INFO L95 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 [2020-10-20 00:34:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:34:57,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 00:34:57,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:34:57,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:34:57,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:34:57,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:34:57,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79007842] [2020-10-20 00:34:57,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:34:57,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2020-10-20 00:34:57,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551617449] [2020-10-20 00:34:57,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 00:34:57,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:34:57,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 00:34:57,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 00:34:57,457 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand 5 states. [2020-10-20 00:35:05,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:35:05,867 INFO L93 Difference]: Finished difference Result 85 states and 112 transitions. [2020-10-20 00:35:06,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 00:35:06,152 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-20 00:35:06,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:35:06,154 INFO L225 Difference]: With dead ends: 85 [2020-10-20 00:35:06,154 INFO L226 Difference]: Without dead ends: 82 [2020-10-20 00:35:06,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:35:06,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-20 00:35:06,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 75. [2020-10-20 00:35:06,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-20 00:35:06,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 103 transitions. [2020-10-20 00:35:06,174 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 103 transitions. Word has length 11 [2020-10-20 00:35:06,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:35:06,174 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 103 transitions. [2020-10-20 00:35:06,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 00:35:06,175 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 103 transitions. [2020-10-20 00:35:06,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:35:06,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:35:06,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:35:06,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 00:35:06,378 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:35:06,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:35:06,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1297366718, now seen corresponding path program 1 times [2020-10-20 00:35:06,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:35:06,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648676164] [2020-10-20 00:35:06,380 INFO L95 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 [2020-10-20 00:35:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:35:06,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 00:35:06,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:35:07,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:35:07,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:35:07,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:35:07,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648676164] [2020-10-20 00:35:07,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:35:07,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-20 00:35:07,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931788719] [2020-10-20 00:35:07,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 00:35:07,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:35:07,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 00:35:07,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:35:07,070 INFO L87 Difference]: Start difference. First operand 75 states and 103 transitions. Second operand 6 states. [2020-10-20 00:35:10,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:35:10,719 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2020-10-20 00:35:10,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 00:35:10,877 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-20 00:35:10,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:35:10,878 INFO L225 Difference]: With dead ends: 93 [2020-10-20 00:35:10,878 INFO L226 Difference]: Without dead ends: 60 [2020-10-20 00:35:10,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 00:35:10,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-20 00:35:10,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 51. [2020-10-20 00:35:10,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-20 00:35:10,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2020-10-20 00:35:10,887 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 11 [2020-10-20 00:35:10,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:35:10,887 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2020-10-20 00:35:10,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 00:35:10,887 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2020-10-20 00:35:10,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:35:10,888 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:35:10,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:35:11,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 00:35:11,092 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:35:11,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:35:11,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1092345056, now seen corresponding path program 1 times [2020-10-20 00:35:11,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:35:11,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072056268] [2020-10-20 00:35:11,094 INFO L95 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 [2020-10-20 00:35:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:35:11,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 00:35:11,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:35:12,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:35:12,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:35:12,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:35:12,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072056268] [2020-10-20 00:35:12,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:35:12,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-20 00:35:12,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532229984] [2020-10-20 00:35:12,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 00:35:12,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:35:12,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 00:35:12,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-20 00:35:12,098 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand 8 states. [2020-10-20 00:35:12,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:35:12,215 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2020-10-20 00:35:12,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 00:35:12,217 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-10-20 00:35:12,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:35:12,218 INFO L225 Difference]: With dead ends: 58 [2020-10-20 00:35:12,218 INFO L226 Difference]: Without dead ends: 16 [2020-10-20 00:35:12,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-20 00:35:12,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-20 00:35:12,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-20 00:35:12,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-20 00:35:12,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-10-20 00:35:12,223 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2020-10-20 00:35:12,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:35:12,223 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-10-20 00:35:12,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 00:35:12,224 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-10-20 00:35:12,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 00:35:12,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:35:12,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:35:12,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 00:35:12,434 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:35:12,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:35:12,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1064969237, now seen corresponding path program 1 times [2020-10-20 00:35:12,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:35:12,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638795755] [2020-10-20 00:35:12,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-20 00:35:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:35:13,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 00:35:13,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:35:13,203 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:35:13,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:35:13,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:35:13,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:35:13,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638795755] [2020-10-20 00:35:13,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:35:13,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2020-10-20 00:35:13,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37539178] [2020-10-20 00:35:13,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 00:35:13,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:35:13,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 00:35:13,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-20 00:35:13,526 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 12 states. [2020-10-20 00:35:13,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:35:13,835 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-10-20 00:35:13,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 00:35:13,836 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-10-20 00:35:13,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:35:13,837 INFO L225 Difference]: With dead ends: 16 [2020-10-20 00:35:13,837 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:35:13,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-10-20 00:35:13,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:35:13,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:35:13,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:35:13,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:35:13,838 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-20 00:35:13,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:35:13,838 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:35:13,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 00:35:13,838 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:35:13,839 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:35:14,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-20 00:35:14,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:35:14,287 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-10-20 00:35:14,390 INFO L270 CegarLoopResult]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2020-10-20 00:35:14,390 INFO L274 CegarLoopResult]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2020-10-20 00:35:14,390 INFO L270 CegarLoopResult]: At program point L52-6(lines 52 61) the Hoare annotation is: false [2020-10-20 00:35:14,390 INFO L274 CegarLoopResult]: For program point L52-7(lines 16 81) no Hoare annotation was computed. [2020-10-20 00:35:14,391 INFO L274 CegarLoopResult]: For program point L102(lines 102 105) no Hoare annotation was computed. [2020-10-20 00:35:14,391 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:35:14,391 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 00:35:14,391 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:35:14,391 INFO L274 CegarLoopResult]: For program point L37(lines 37 41) no Hoare annotation was computed. [2020-10-20 00:35:14,391 INFO L274 CegarLoopResult]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2020-10-20 00:35:14,391 INFO L274 CegarLoopResult]: For program point L37-3(lines 37 41) no Hoare annotation was computed. [2020-10-20 00:35:14,391 INFO L274 CegarLoopResult]: For program point L37-5(lines 37 41) no Hoare annotation was computed. [2020-10-20 00:35:14,392 INFO L274 CegarLoopResult]: For program point L54(lines 54 58) no Hoare annotation was computed. [2020-10-20 00:35:14,392 INFO L274 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-10-20 00:35:14,392 INFO L274 CegarLoopResult]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2020-10-20 00:35:14,392 INFO L270 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2020-10-20 00:35:14,393 INFO L274 CegarLoopResult]: For program point L54-3(lines 54 58) no Hoare annotation was computed. [2020-10-20 00:35:14,393 INFO L274 CegarLoopResult]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2020-10-20 00:35:14,393 INFO L274 CegarLoopResult]: For program point L54-5(lines 54 58) no Hoare annotation was computed. [2020-10-20 00:35:14,393 INFO L274 CegarLoopResult]: For program point L21-5(lines 21 25) no Hoare annotation was computed. [2020-10-20 00:35:14,393 INFO L270 CegarLoopResult]: At program point L21-6(lines 21 25) the Hoare annotation is: false [2020-10-20 00:35:14,393 INFO L274 CegarLoopResult]: For program point L21-7(lines 21 25) no Hoare annotation was computed. [2020-10-20 00:35:14,394 INFO L270 CegarLoopResult]: At program point L170(lines 161 171) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start_main_~res~0)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start___signbit_float_~x)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (= (bvadd ULTIMATE.start___ieee754_acosf_~ix~1 (_ bv3229614080 32)) (_ bv0 32)) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) |ULTIMATE.start_main_#t~short24|) [2020-10-20 00:35:14,394 INFO L274 CegarLoopResult]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2020-10-20 00:35:14,394 INFO L270 CegarLoopResult]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2020-10-20 00:35:14,394 INFO L274 CegarLoopResult]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2020-10-20 00:35:14,395 INFO L274 CegarLoopResult]: For program point L38-7(lines 38 39) no Hoare annotation was computed. [2020-10-20 00:35:14,395 INFO L270 CegarLoopResult]: At program point L38-8(lines 38 39) the Hoare annotation is: false [2020-10-20 00:35:14,395 INFO L274 CegarLoopResult]: For program point L38-9(lines 38 39) no Hoare annotation was computed. [2020-10-20 00:35:14,395 INFO L274 CegarLoopResult]: For program point L121(lines 121 158) no Hoare annotation was computed. [2020-10-20 00:35:14,395 INFO L274 CegarLoopResult]: For program point L138-1(lines 138 142) no Hoare annotation was computed. [2020-10-20 00:35:14,395 INFO L270 CegarLoopResult]: At program point L138-2(lines 138 142) the Hoare annotation is: false [2020-10-20 00:35:14,396 INFO L277 CegarLoopResult]: At program point L188(lines 173 189) the Hoare annotation is: true [2020-10-20 00:35:14,396 INFO L274 CegarLoopResult]: For program point L106(lines 106 108) no Hoare annotation was computed. [2020-10-20 00:35:14,396 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:35:14,396 INFO L270 CegarLoopResult]: At program point L157(lines 92 159) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (= (bvadd ULTIMATE.start___ieee754_acosf_~ix~1 (_ bv3229614080 32)) (_ bv0 32))) [2020-10-20 00:35:14,397 INFO L274 CegarLoopResult]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2020-10-20 00:35:14,397 INFO L270 CegarLoopResult]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2020-10-20 00:35:14,397 INFO L274 CegarLoopResult]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2020-10-20 00:35:14,397 INFO L274 CegarLoopResult]: For program point L75-5(lines 75 79) no Hoare annotation was computed. [2020-10-20 00:35:14,397 INFO L270 CegarLoopResult]: At program point L75-6(lines 75 79) the Hoare annotation is: false [2020-10-20 00:35:14,398 INFO L274 CegarLoopResult]: For program point L75-7(lines 75 79) no Hoare annotation was computed. [2020-10-20 00:35:14,398 INFO L274 CegarLoopResult]: For program point L109(lines 109 158) no Hoare annotation was computed. [2020-10-20 00:35:14,398 INFO L274 CegarLoopResult]: For program point L143(lines 143 147) no Hoare annotation was computed. [2020-10-20 00:35:14,398 INFO L274 CegarLoopResult]: For program point L110(lines 110 111) no Hoare annotation was computed. [2020-10-20 00:35:14,398 INFO L274 CegarLoopResult]: For program point L143-1(lines 133 158) no Hoare annotation was computed. [2020-10-20 00:35:14,399 INFO L274 CegarLoopResult]: For program point L143-2(lines 143 147) no Hoare annotation was computed. [2020-10-20 00:35:14,399 INFO L274 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-10-20 00:35:14,399 INFO L274 CegarLoopResult]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2020-10-20 00:35:14,399 INFO L274 CegarLoopResult]: For program point L44-3(lines 44 45) no Hoare annotation was computed. [2020-10-20 00:35:14,399 INFO L274 CegarLoopResult]: For program point L44-5(lines 44 45) no Hoare annotation was computed. [2020-10-20 00:35:14,400 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:35:14,400 INFO L274 CegarLoopResult]: For program point L28(lines 28 29) no Hoare annotation was computed. [2020-10-20 00:35:14,400 INFO L274 CegarLoopResult]: For program point L28-1(lines 28 29) no Hoare annotation was computed. [2020-10-20 00:35:14,400 INFO L274 CegarLoopResult]: For program point L95-1(lines 95 99) no Hoare annotation was computed. [2020-10-20 00:35:14,400 INFO L270 CegarLoopResult]: At program point L95-2(lines 95 99) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) [2020-10-20 00:35:14,401 INFO L274 CegarLoopResult]: For program point L95-3(lines 95 99) no Hoare annotation was computed. [2020-10-20 00:35:14,401 INFO L274 CegarLoopResult]: For program point L63(lines 63 72) no Hoare annotation was computed. [2020-10-20 00:35:14,401 INFO L274 CegarLoopResult]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2020-10-20 00:35:14,401 INFO L270 CegarLoopResult]: At program point L80(lines 16 81) the Hoare annotation is: false [2020-10-20 00:35:14,402 INFO L270 CegarLoopResult]: At program point L80-1(lines 16 81) the Hoare annotation is: false [2020-10-20 00:35:14,402 INFO L274 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-10-20 00:35:14,402 INFO L274 CegarLoopResult]: For program point L31-1(lines 31 32) no Hoare annotation was computed. [2020-10-20 00:35:14,402 INFO L274 CegarLoopResult]: For program point L164-1(lines 164 168) no Hoare annotation was computed. [2020-10-20 00:35:14,402 INFO L270 CegarLoopResult]: At program point L164-2(lines 164 168) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start_main_~res~0)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start___signbit_float_~x)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (= (bvadd ULTIMATE.start___ieee754_acosf_~ix~1 (_ bv3229614080 32)) (_ bv0 32)) |ULTIMATE.start_main_#t~short24|) [2020-10-20 00:35:14,403 INFO L274 CegarLoopResult]: For program point L65(lines 65 71) no Hoare annotation was computed. [2020-10-20 00:35:14,403 INFO L274 CegarLoopResult]: For program point L164-3(lines 164 168) no Hoare annotation was computed. [2020-10-20 00:35:14,403 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:35:14,403 INFO L274 CegarLoopResult]: For program point L65-2(lines 65 71) no Hoare annotation was computed. [2020-10-20 00:35:14,403 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:35:14,404 INFO L274 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-10-20 00:35:14,404 INFO L274 CegarLoopResult]: For program point L33-1(lines 33 34) no Hoare annotation was computed. [2020-10-20 00:35:14,404 INFO L274 CegarLoopResult]: For program point L67(lines 67 70) no Hoare annotation was computed. [2020-10-20 00:35:14,404 INFO L274 CegarLoopResult]: For program point L67-3(lines 67 70) no Hoare annotation was computed. [2020-10-20 00:35:14,404 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-20 00:35:14,405 INFO L274 CegarLoopResult]: For program point L183-2(lines 183 186) no Hoare annotation was computed. [2020-10-20 00:35:14,405 INFO L274 CegarLoopResult]: For program point L101(lines 101 108) no Hoare annotation was computed. [2020-10-20 00:35:14,417 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,418 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,419 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,425 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,426 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,426 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,427 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,427 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,429 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,429 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,429 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,430 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,430 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,430 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,431 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,432 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,432 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,432 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,433 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,433 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,434 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,434 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,435 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,435 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,435 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,436 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:35:14 BoogieIcfgContainer [2020-10-20 00:35:14,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:35:14,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:35:14,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:35:14,441 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:35:14,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:34:55" (3/4) ... [2020-10-20 00:35:14,446 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:35:14,464 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2020-10-20 00:35:14,465 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-10-20 00:35:14,465 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:35:14,466 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:35:14,499 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x) [2020-10-20 00:35:14,499 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32 [2020-10-20 00:35:14,500 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-10-20 00:35:14,501 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-10-20 00:35:14,613 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:35:14,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:35:14,616 INFO L168 Benchmark]: Toolchain (without parser) took 31578.39 ms. Allocated memory was 40.9 MB in the beginning and 52.4 MB in the end (delta: 11.5 MB). Free memory was 18.7 MB in the beginning and 13.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 17.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:14,617 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 31.5 MB. Free memory was 7.6 MB in the beginning and 7.5 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. [2020-10-20 00:35:14,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 570.36 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 17.7 MB in the beginning and 11.2 MB in the end (delta: 6.5 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:14,618 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.93 ms. Allocated memory was 41.9 MB in the beginning and 43.0 MB in the end (delta: 1.0 MB). Free memory was 11.2 MB in the beginning and 24.8 MB in the end (delta: -13.7 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:14,619 INFO L168 Benchmark]: Boogie Preprocessor took 60.00 ms. Allocated memory is still 43.0 MB. Free memory was 24.8 MB in the beginning and 21.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:14,619 INFO L168 Benchmark]: RCFGBuilder took 11934.35 ms. Allocated memory was 43.0 MB in the beginning and 45.6 MB in the end (delta: 2.6 MB). Free memory was 21.9 MB in the beginning and 13.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:14,620 INFO L168 Benchmark]: TraceAbstraction took 18748.93 ms. Allocated memory was 45.6 MB in the beginning and 52.4 MB in the end (delta: 6.8 MB). Free memory was 13.2 MB in the beginning and 22.9 MB in the end (delta: -9.7 MB). Peak memory consumption was 8.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:14,620 INFO L168 Benchmark]: Witness Printer took 173.27 ms. Allocated memory is still 52.4 MB. Free memory was 22.5 MB in the beginning and 13.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:14,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 31.5 MB. Free memory was 7.6 MB in the beginning and 7.5 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 570.36 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 17.7 MB in the beginning and 11.2 MB in the end (delta: 6.5 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 81.93 ms. Allocated memory was 41.9 MB in the beginning and 43.0 MB in the end (delta: 1.0 MB). Free memory was 11.2 MB in the beginning and 24.8 MB in the end (delta: -13.7 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 60.00 ms. Allocated memory is still 43.0 MB. Free memory was 24.8 MB in the beginning and 21.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. * RCFGBuilder took 11934.35 ms. Allocated memory was 43.0 MB in the beginning and 45.6 MB in the end (delta: 2.6 MB). Free memory was 21.9 MB in the beginning and 13.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 18748.93 ms. Allocated memory was 45.6 MB in the beginning and 52.4 MB in the end (delta: 6.8 MB). Free memory was 13.2 MB in the beginning and 22.9 MB in the end (delta: -9.7 MB). Peak memory consumption was 8.8 MB. Max. memory is 14.3 GB. * Witness Printer took 173.27 ms. Allocated memory is still 52.4 MB. Free memory was 22.5 MB in the beginning and 13.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 14.3 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 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 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 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 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 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 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 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 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 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] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 92]: Loop Invariant [2020-10-20 00:35:14,641 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,642 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,642 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,643 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,643 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,644 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32 - InvariantResult [Line: 95]: Loop Invariant [2020-10-20 00:35:14,644 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,645 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 161]: Loop Invariant [2020-10-20 00:35:14,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,661 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,661 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,662 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,662 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,663 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,663 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,663 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,663 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,664 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,664 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 164]: Loop Invariant [2020-10-20 00:35:14,665 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,665 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,666 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,666 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,666 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:35:14,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 282 SDtfs, 226 SDslu, 275 SDs, 0 SdLazy, 42 SolverSat, 11 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 11.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred 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, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 16 PreInvPairs, 21 NumberOfFragments, 149 HoareAnnotationTreeSize, 16 FomulaSimplifications, 78 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 20 QuantifiedInterpolants, 4012 SizeOfPredicates, 29 NumberOfNonLiveVariables, 311 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...