./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0831.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_0831.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 3f171dd4f575b92a9302785470b2bac89695cbf3 ............................................................................................................................................................................................................................................................................................................... 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_0831.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 3f171dd4f575b92a9302785470b2bac89695cbf3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:37:21,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:37:21,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:37:21,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:37:21,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:37:21,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:37:21,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:37:21,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:37:21,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:37:21,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:37:21,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:37:21,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:37:21,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:37:21,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:37:21,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:37:21,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:37:21,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:37:21,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:37:21,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:37:21,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:37:21,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:37:21,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:37:21,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:37:21,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:37:21,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:37:21,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:37:21,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:37:21,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:37:21,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:37:21,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:37:21,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:37:21,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:37:21,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:37:21,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:37:21,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:37:21,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:37:21,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:37:21,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:37:21,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:37:21,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:37:21,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:37:21,408 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:37:21,454 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:37:21,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:37:21,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:37:21,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:37:21,457 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:37:21,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:37:21,458 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:37:21,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:37:21,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:37:21,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:37:21,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:37:21,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:37:21,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:37:21,461 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:37:21,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:37:21,462 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:37:21,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:37:21,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:37:21,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:37:21,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:37:21,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:37:21,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:37:21,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:37:21,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:37:21,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:37:21,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:37:21,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:37:21,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:37:21,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:37:21,465 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 -> 3f171dd4f575b92a9302785470b2bac89695cbf3 [2020-10-20 00:37:21,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:37:21,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:37:21,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:37:21,712 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:37:21,713 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:37:21,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-10-20 00:37:21,791 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dab779057/779d7e1263b9496bb3072ba6e00a63c9/FLAG0838da539 [2020-10-20 00:37:22,352 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:37:22,353 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-10-20 00:37:22,361 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dab779057/779d7e1263b9496bb3072ba6e00a63c9/FLAG0838da539 [2020-10-20 00:37:22,730 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dab779057/779d7e1263b9496bb3072ba6e00a63c9 [2020-10-20 00:37:22,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:37:22,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:37:22,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:37:22,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:37:22,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:37:22,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:37:22" (1/1) ... [2020-10-20 00:37:22,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77342aad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:22, skipping insertion in model container [2020-10-20 00:37:22,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:37:22" (1/1) ... [2020-10-20 00:37:22,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:37:22,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:37:23,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:37:23,094 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:37:23,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:37:23,149 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:37:23,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:23 WrapperNode [2020-10-20 00:37:23,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:37:23,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:37:23,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:37:23,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:37:23,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:23" (1/1) ... [2020-10-20 00:37:23,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:23" (1/1) ... [2020-10-20 00:37:23,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:37:23,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:37:23,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:37:23,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:37:23,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:23" (1/1) ... [2020-10-20 00:37:23,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:23" (1/1) ... [2020-10-20 00:37:23,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:23" (1/1) ... [2020-10-20 00:37:23,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:23" (1/1) ... [2020-10-20 00:37:23,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:23" (1/1) ... [2020-10-20 00:37:23,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:23" (1/1) ... [2020-10-20 00:37:23,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:23" (1/1) ... [2020-10-20 00:37:23,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:37:23,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:37:23,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:37:23,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:37:23,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:23" (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 00:37:23,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:37:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:37:23,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:37:23,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-20 00:37:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-20 00:37:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:37:23,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:37:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:37:23,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-20 00:37:23,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:37:23,737 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:37:23,737 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-20 00:37:23,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:37:23 BoogieIcfgContainer [2020-10-20 00:37:23,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:37:23,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:37:23,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:37:23,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:37:23,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:37:22" (1/3) ... [2020-10-20 00:37:23,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c67837b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:37:23, skipping insertion in model container [2020-10-20 00:37:23,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:23" (2/3) ... [2020-10-20 00:37:23,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c67837b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:37:23, skipping insertion in model container [2020-10-20 00:37:23,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:37:23" (3/3) ... [2020-10-20 00:37:23,749 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2020-10-20 00:37:23,764 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:37:23,772 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:37:23,788 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:37:23,814 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:37:23,814 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:37:23,815 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:37:23,815 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:37:23,815 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:37:23,815 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:37:23,816 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:37:23,816 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:37:23,833 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-20 00:37:23,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 00:37:23,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:37:23,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:37:23,845 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:37:23,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:37:23,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2020-10-20 00:37:23,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:37:23,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296489717] [2020-10-20 00:37:23,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:37:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:37:24,032 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 00:37:24,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296489717] [2020-10-20 00:37:24,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:37:24,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:37:24,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546881031] [2020-10-20 00:37:24,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:37:24,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:37:24,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:37:24,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:37:24,058 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-10-20 00:37:24,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:37:24,081 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2020-10-20 00:37:24,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:37:24,082 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-20 00:37:24,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:37:24,106 INFO L225 Difference]: With dead ends: 73 [2020-10-20 00:37:24,106 INFO L226 Difference]: Without dead ends: 34 [2020-10-20 00:37:24,110 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 00:37:24,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-20 00:37:24,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-20 00:37:24,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-20 00:37:24,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2020-10-20 00:37:24,149 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2020-10-20 00:37:24,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:37:24,150 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2020-10-20 00:37:24,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:37:24,151 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2020-10-20 00:37:24,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 00:37:24,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:37:24,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:37:24,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:37:24,154 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:37:24,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:37:24,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2020-10-20 00:37:24,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:37:24,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349304449] [2020-10-20 00:37:24,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:37:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:37:24,253 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:37:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:37:24,293 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:37:24,326 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:37:24,326 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:37:24,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:37:24,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:37:24 BoogieIcfgContainer [2020-10-20 00:37:24,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:37:24,372 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:37:24,372 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:37:24,373 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:37:24,373 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:37:23" (3/4) ... [2020-10-20 00:37:24,378 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:37:24,378 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:37:24,381 INFO L168 Benchmark]: Toolchain (without parser) took 1644.34 ms. Allocated memory was 41.9 MB in the beginning and 46.7 MB in the end (delta: 4.7 MB). Free memory was 20.4 MB in the beginning and 13.3 MB in the end (delta: 7.1 MB). Peak memory consumption was 11.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:24,382 INFO L168 Benchmark]: CDTParser took 0.97 ms. Allocated memory is still 32.0 MB. Free memory was 9.3 MB in the beginning and 9.3 MB in the end (delta: 68.4 kB). Peak memory consumption was 68.4 kB. Max. memory is 14.3 GB. [2020-10-20 00:37:24,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 408.49 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 19.5 MB in the beginning and 18.8 MB in the end (delta: 753.3 kB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:24,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.67 ms. Allocated memory is still 42.5 MB. Free memory was 18.8 MB in the beginning and 16.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:24,385 INFO L168 Benchmark]: Boogie Preprocessor took 39.47 ms. Allocated memory is still 42.5 MB. Free memory was 16.5 MB in the beginning and 14.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:24,386 INFO L168 Benchmark]: RCFGBuilder took 496.61 ms. Allocated memory was 42.5 MB in the beginning and 45.1 MB in the end (delta: 2.6 MB). Free memory was 14.4 MB in the beginning and 26.7 MB in the end (delta: -12.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:24,387 INFO L168 Benchmark]: TraceAbstraction took 631.19 ms. Allocated memory was 45.1 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Free memory was 26.4 MB in the beginning and 13.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:24,387 INFO L168 Benchmark]: Witness Printer took 5.52 ms. Allocated memory is still 46.7 MB. Free memory was 13.7 MB in the beginning and 13.3 MB in the end (delta: 355.1 kB). Peak memory consumption was 355.1 kB. Max. memory is 14.3 GB. [2020-10-20 00:37:24,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97 ms. Allocated memory is still 32.0 MB. Free memory was 9.3 MB in the beginning and 9.3 MB in the end (delta: 68.4 kB). Peak memory consumption was 68.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 408.49 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 19.5 MB in the beginning and 18.8 MB in the end (delta: 753.3 kB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 51.67 ms. Allocated memory is still 42.5 MB. Free memory was 18.8 MB in the beginning and 16.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 39.47 ms. Allocated memory is still 42.5 MB. Free memory was 16.5 MB in the beginning and 14.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * RCFGBuilder took 496.61 ms. Allocated memory was 42.5 MB in the beginning and 45.1 MB in the end (delta: 2.6 MB). Free memory was 14.4 MB in the beginning and 26.7 MB in the end (delta: -12.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 14.3 GB. * TraceAbstraction took 631.19 ms. Allocated memory was 45.1 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Free memory was 26.4 MB in the beginning and 13.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 14.3 GB. * Witness Printer took 5.52 ms. Allocated memory is still 46.7 MB. Free memory was 13.7 MB in the beginning and 13.3 MB in the end (delta: 355.1 kB). Peak memory consumption was 355.1 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 15, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of bitwiseAnd at line 48, overapproximation of someBinaryArithmeticFLOAToperation at line 52. Possible FailurePath: [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L118] float x = 0.0f / 0.0f; [L39] float y, hi, lo, c, t; [L40] __int32_t k = 0, xsb, sx; [L41] __uint32_t hx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L44] ieee_float_shape_type gf_u; [L45] gf_u.value = (x) [L46] EXPR gf_u.word [L46] (sx) = gf_u.word [L48] xsb = (sx >> 31) & 1 [L49] hx = sx & 0x7fffffff VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L51] COND TRUE ((hx) > 0x7f800000L) [L52] return x + x; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L119] float res = __ieee754_expf(x); [L15] return x != x; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L122] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0831.c", 3, "reach_error") VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 47 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=38occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 00:37:26,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:37:26,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:37:26,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:37:26,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:37:26,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:37:26,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:37:26,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:37:26,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:37:26,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:37:26,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:37:26,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:37:26,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:37:26,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:37:26,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:37:26,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:37:26,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:37:26,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:37:26,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:37:26,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:37:26,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:37:26,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:37:26,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:37:26,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:37:26,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:37:26,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:37:26,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:37:26,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:37:26,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:37:26,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:37:26,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:37:26,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:37:26,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:37:26,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:37:26,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:37:26,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:37:26,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:37:26,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:37:26,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:37:26,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:37:26,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:37:26,759 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:37:26,802 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:37:26,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:37:26,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:37:26,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:37:26,805 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:37:26,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:37:26,806 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:37:26,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:37:26,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:37:26,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:37:26,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:37:26,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:37:26,808 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:37:26,808 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:37:26,809 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:37:26,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:37:26,809 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:37:26,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:37:26,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:37:26,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:37:26,810 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:37:26,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:37:26,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:37:26,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:37:26,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:37:26,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:37:26,811 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:37:26,811 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:37:26,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:37:26,812 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:37:26,812 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:37:26,812 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 -> 3f171dd4f575b92a9302785470b2bac89695cbf3 [2020-10-20 00:37:27,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:37:27,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:37:27,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:37:27,038 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:37:27,038 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:37:27,039 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-10-20 00:37:27,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2564c5c19/a230cb4a9a3340fba8f1ce99518692ac/FLAGd663b94fe [2020-10-20 00:37:27,582 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:37:27,583 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-10-20 00:37:27,596 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2564c5c19/a230cb4a9a3340fba8f1ce99518692ac/FLAGd663b94fe [2020-10-20 00:37:27,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2564c5c19/a230cb4a9a3340fba8f1ce99518692ac [2020-10-20 00:37:27,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:37:27,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:37:27,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:37:27,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:37:27,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:37:27,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:37:27" (1/1) ... [2020-10-20 00:37:27,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@524c29ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:27, skipping insertion in model container [2020-10-20 00:37:27,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:37:27" (1/1) ... [2020-10-20 00:37:27,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:37:27,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:37:28,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:37:28,357 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:37:28,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:37:28,458 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:37:28,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:28 WrapperNode [2020-10-20 00:37:28,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:37:28,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:37:28,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:37:28,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:37:28,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:28" (1/1) ... [2020-10-20 00:37:28,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:28" (1/1) ... [2020-10-20 00:37:28,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:37:28,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:37:28,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:37:28,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:37:28,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:28" (1/1) ... [2020-10-20 00:37:28,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:28" (1/1) ... [2020-10-20 00:37:28,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:28" (1/1) ... [2020-10-20 00:37:28,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:28" (1/1) ... [2020-10-20 00:37:28,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:28" (1/1) ... [2020-10-20 00:37:28,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:28" (1/1) ... [2020-10-20 00:37:28,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:28" (1/1) ... [2020-10-20 00:37:28,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:37:28,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:37:28,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:37:28,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:37:28,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:28" (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 00:37:28,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-10-20 00:37:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:37:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:37:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-20 00:37:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 00:37:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:37:28,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:37:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-20 00:37:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 00:37:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:37:38,189 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:37:38,190 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-20 00:37:38,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:37:38 BoogieIcfgContainer [2020-10-20 00:37:38,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:37:38,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:37:38,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:37:38,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:37:38,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:37:27" (1/3) ... [2020-10-20 00:37:38,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d24370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:37:38, skipping insertion in model container [2020-10-20 00:37:38,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:37:28" (2/3) ... [2020-10-20 00:37:38,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d24370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:37:38, skipping insertion in model container [2020-10-20 00:37:38,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:37:38" (3/3) ... [2020-10-20 00:37:38,202 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2020-10-20 00:37:38,213 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:37:38,221 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:37:38,236 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:37:38,262 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:37:38,262 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:37:38,263 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:37:38,263 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:37:38,263 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:37:38,264 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:37:38,264 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:37:38,264 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:37:38,281 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-20 00:37:38,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 00:37:38,288 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:37:38,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:37:38,289 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:37:38,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:37:38,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2020-10-20 00:37:38,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:37:38,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821554077] [2020-10-20 00:37:38,311 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 00:37:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:37:38,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 00:37:38,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:37:38,851 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 00:37:38,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:37:38,856 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 00:37:38,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821554077] [2020-10-20 00:37:38,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:37:38,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 00:37:38,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379866610] [2020-10-20 00:37:38,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:37:38,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:37:38,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:37:38,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:37:38,891 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-10-20 00:37:38,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:37:38,921 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2020-10-20 00:37:38,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:37:38,923 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-20 00:37:38,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:37:38,935 INFO L225 Difference]: With dead ends: 73 [2020-10-20 00:37:38,936 INFO L226 Difference]: Without dead ends: 34 [2020-10-20 00:37:38,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 00:37:38,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-20 00:37:38,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-20 00:37:38,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-20 00:37:38,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2020-10-20 00:37:38,983 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2020-10-20 00:37:38,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:37:38,984 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2020-10-20 00:37:38,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:37:38,984 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2020-10-20 00:37:38,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 00:37:38,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:37:38,985 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:37:39,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:37:39,192 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:37:39,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:37:39,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2020-10-20 00:37:39,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:37:39,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968260367] [2020-10-20 00:37:39,195 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 00:37:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:37:39,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 00:37:39,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:37:39,790 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 00:37:39,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:37:40,243 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 00:37:40,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1968260367] [2020-10-20 00:37:40,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:37:40,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-20 00:37:40,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589652781] [2020-10-20 00:37:40,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 00:37:40,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:37:40,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 00:37:40,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-20 00:37:40,248 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand 10 states. [2020-10-20 00:37:57,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:37:57,829 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2020-10-20 00:37:57,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 00:37:57,830 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2020-10-20 00:37:57,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:37:57,832 INFO L225 Difference]: With dead ends: 48 [2020-10-20 00:37:57,832 INFO L226 Difference]: Without dead ends: 40 [2020-10-20 00:37:57,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-20 00:37:57,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-20 00:37:57,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 34. [2020-10-20 00:37:57,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-20 00:37:57,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2020-10-20 00:37:57,840 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 10 [2020-10-20 00:37:57,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:37:57,841 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2020-10-20 00:37:57,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 00:37:57,841 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2020-10-20 00:37:57,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 00:37:57,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:37:57,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:37:58,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 00:37:58,045 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:37:58,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:37:58,047 INFO L82 PathProgramCache]: Analyzing trace with hash 228797714, now seen corresponding path program 1 times [2020-10-20 00:37:58,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:37:58,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118902426] [2020-10-20 00:37:58,048 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 00:37:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:37:58,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 00:37:58,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:37:58,641 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 00:37:58,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:37:58,843 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 00:37:58,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118902426] [2020-10-20 00:37:58,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:37:58,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 7] imperfect sequences [] total 10 [2020-10-20 00:37:58,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933480810] [2020-10-20 00:37:58,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 00:37:58,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:37:58,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 00:37:58,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-20 00:37:58,846 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 10 states. [2020-10-20 00:37:58,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:37:58,994 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2020-10-20 00:37:58,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 00:37:58,995 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2020-10-20 00:37:58,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:37:58,995 INFO L225 Difference]: With dead ends: 34 [2020-10-20 00:37:58,995 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:37:58,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-20 00:37:58,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:37:58,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:37:58,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:37:58,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:37:58,997 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-20 00:37:58,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:37:58,997 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:37:58,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 00:37:58,997 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:37:58,997 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:37:59,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 00:37:59,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:37:59,328 INFO L274 CegarLoopResult]: For program point L60(lines 60 75) no Hoare annotation was computed. [2020-10-20 00:37:59,328 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:37:59,328 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 00:37:59,329 INFO L277 CegarLoopResult]: At program point L127(lines 113 128) the Hoare annotation is: true [2020-10-20 00:37:59,329 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:37:59,329 INFO L274 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2020-10-20 00:37:59,329 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:37:59,329 INFO L274 CegarLoopResult]: For program point L61-2(lines 61 70) no Hoare annotation was computed. [2020-10-20 00:37:59,329 INFO L274 CegarLoopResult]: For program point L53(lines 53 54) no Hoare annotation was computed. [2020-10-20 00:37:59,330 INFO L274 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2020-10-20 00:37:59,330 INFO L270 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: false [2020-10-20 00:37:59,330 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-20 00:37:59,330 INFO L274 CegarLoopResult]: For program point L54-2(line 54) no Hoare annotation was computed. [2020-10-20 00:37:59,331 INFO L274 CegarLoopResult]: For program point L104(lines 104 108) no Hoare annotation was computed. [2020-10-20 00:37:59,331 INFO L274 CegarLoopResult]: For program point L104-1(lines 97 110) no Hoare annotation was computed. [2020-10-20 00:37:59,331 INFO L274 CegarLoopResult]: For program point L104-2(lines 104 108) no Hoare annotation was computed. [2020-10-20 00:37:59,331 INFO L274 CegarLoopResult]: For program point L55(lines 55 56) no Hoare annotation was computed. [2020-10-20 00:37:59,331 INFO L274 CegarLoopResult]: For program point L80(lines 80 83) no Hoare annotation was computed. [2020-10-20 00:37:59,331 INFO L274 CegarLoopResult]: For program point L72(lines 72 75) no Hoare annotation was computed. [2020-10-20 00:37:59,331 INFO L274 CegarLoopResult]: For program point L72-2(lines 60 75) no Hoare annotation was computed. [2020-10-20 00:37:59,331 INFO L274 CegarLoopResult]: For program point L122(lines 122 125) no Hoare annotation was computed. [2020-10-20 00:37:59,332 INFO L270 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_expf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_expf_~x) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) [2020-10-20 00:37:59,332 INFO L274 CegarLoopResult]: For program point L73(lines 73 74) no Hoare annotation was computed. [2020-10-20 00:37:59,332 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:37:59,332 INFO L274 CegarLoopResult]: For program point L57(lines 57 58) no Hoare annotation was computed. [2020-10-20 00:37:59,332 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:37:59,332 INFO L274 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-10-20 00:37:59,333 INFO L270 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-10-20 00:37:59,333 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:37:59,333 INFO L274 CegarLoopResult]: For program point L91(lines 91 95) no Hoare annotation was computed. [2020-10-20 00:37:59,334 INFO L274 CegarLoopResult]: For program point L91-1(lines 84 97) no Hoare annotation was computed. [2020-10-20 00:37:59,334 INFO L274 CegarLoopResult]: For program point L91-2(lines 91 95) no Hoare annotation was computed. [2020-10-20 00:37:59,334 INFO L274 CegarLoopResult]: For program point L84(lines 84 110) no Hoare annotation was computed. [2020-10-20 00:37:59,334 INFO L274 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2020-10-20 00:37:59,335 INFO L270 CegarLoopResult]: At program point L109(lines 38 111) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_expf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_expf_~x)) [2020-10-20 00:37:59,335 INFO L274 CegarLoopResult]: For program point L43-1(lines 43 47) no Hoare annotation was computed. [2020-10-20 00:37:59,335 INFO L270 CegarLoopResult]: At program point L43-2(lines 43 47) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_expf_~x))) [2020-10-20 00:37:59,335 INFO L274 CegarLoopResult]: For program point L43-3(lines 43 47) no Hoare annotation was computed. [2020-10-20 00:37:59,346 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,348 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,348 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,348 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,353 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:37:59,354 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:37:59,356 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,357 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,357 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,358 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,358 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:37:59,358 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:37:59,360 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,360 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,360 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,361 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,361 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:37:59,361 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:37:59,362 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,362 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,362 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,363 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,363 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:37:59,363 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:37:59,364 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,365 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:37:59,365 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:37:59,366 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,366 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:37:59,366 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:37:59,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:37:59 BoogieIcfgContainer [2020-10-20 00:37:59,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:37:59,370 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:37:59,370 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:37:59,370 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:37:59,371 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:37:38" (3/4) ... [2020-10-20 00:37:59,375 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:37:59,389 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-10-20 00:37:59,390 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-20 00:37:59,391 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:37:59,391 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:37:59,423 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2020-10-20 00:37:59,424 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-10-20 00:37:59,424 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && 1bv32 == \result [2020-10-20 00:37:59,472 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:37:59,472 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:37:59,474 INFO L168 Benchmark]: Toolchain (without parser) took 31576.44 ms. Allocated memory was 37.7 MB in the beginning and 56.6 MB in the end (delta: 18.9 MB). Free memory was 13.3 MB in the beginning and 17.4 MB in the end (delta: -4.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:59,475 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 37.2 MB. Free memory is still 16.3 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 00:37:59,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 554.70 ms. Allocated memory was 37.7 MB in the beginning and 45.6 MB in the end (delta: 7.9 MB). Free memory was 12.5 MB in the beginning and 24.7 MB in the end (delta: -12.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:59,476 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.88 ms. Allocated memory is still 45.6 MB. Free memory was 24.7 MB in the beginning and 22.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:59,477 INFO L168 Benchmark]: Boogie Preprocessor took 58.20 ms. Allocated memory is still 45.6 MB. Free memory was 22.2 MB in the beginning and 19.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:59,477 INFO L168 Benchmark]: RCFGBuilder took 9615.30 ms. Allocated memory was 45.6 MB in the beginning and 49.8 MB in the end (delta: 4.2 MB). Free memory was 19.9 MB in the beginning and 31.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:59,478 INFO L168 Benchmark]: TraceAbstraction took 21175.67 ms. Allocated memory was 49.8 MB in the beginning and 56.6 MB in the end (delta: 6.8 MB). Free memory was 31.0 MB in the beginning and 25.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:59,478 INFO L168 Benchmark]: Witness Printer took 102.75 ms. Allocated memory is still 56.6 MB. Free memory was 25.7 MB in the beginning and 17.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:37:59,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 37.2 MB. Free memory is still 16.3 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 554.70 ms. Allocated memory was 37.7 MB in the beginning and 45.6 MB in the end (delta: 7.9 MB). Free memory was 12.5 MB in the beginning and 24.7 MB in the end (delta: -12.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 58.88 ms. Allocated memory is still 45.6 MB. Free memory was 24.7 MB in the beginning and 22.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 58.20 ms. Allocated memory is still 45.6 MB. Free memory was 22.2 MB in the beginning and 19.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 9615.30 ms. Allocated memory was 45.6 MB in the beginning and 49.8 MB in the end (delta: 4.2 MB). Free memory was 19.9 MB in the beginning and 31.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 21175.67 ms. Allocated memory was 49.8 MB in the beginning and 56.6 MB in the end (delta: 6.8 MB). Free memory was 31.0 MB in the beginning and 25.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 14.3 GB. * Witness Printer took 102.75 ms. Allocated memory is still 56.6 MB. Free memory was 25.7 MB in the beginning and 17.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * 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: 15]: Loop Invariant [2020-10-20 00:37:59,492 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,493 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,493 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,493 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,493 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:37:59,494 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:37:59,494 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,495 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,495 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,495 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,495 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:37:59,496 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && 1bv32 == \result - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant [2020-10-20 00:37:59,497 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,497 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,497 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,498 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,498 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:37:59,498 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:37:59,498 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,499 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,499 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,499 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,500 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:37:59,500 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 43]: Loop Invariant [2020-10-20 00:37:59,500 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:37:59,501 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:37:59,501 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:37:59,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-20 00:37:59,502 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 17.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 79 SDtfs, 36 SDslu, 195 SDs, 0 SdLazy, 101 SolverSat, 2 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 16.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 61 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 56 ConstructedInterpolants, 5 QuantifiedInterpolants, 3107 SizeOfPredicates, 15 NumberOfNonLiveVariables, 235 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...