./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1010.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc 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_1.5.800.v20200727-1323.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_1010.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 f841b6aef5f414fec53f63b7daa049c759482c9a ........................................................................................................................................................................................................................................................................................ 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_1.5.800.v20200727-1323.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_1010.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 f841b6aef5f414fec53f63b7daa049c759482c9a ............................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:25:06,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:25:06,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:25:06,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:25:06,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:25:06,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:25:06,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:25:06,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:25:06,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:25:06,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:25:06,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:25:06,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:25:06,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:25:06,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:25:06,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:25:06,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:25:06,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:25:06,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:25:06,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:25:06,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:25:06,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:25:06,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:25:06,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:25:06,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:25:06,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:25:06,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:25:06,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:25:06,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:25:06,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:25:06,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:25:06,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:25:06,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:25:06,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:25:06,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:25:06,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:25:06,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:25:06,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:25:06,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:25:06,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:25:06,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:25:06,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:25:06,604 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:25:06,661 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:25:06,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:25:06,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:25:06,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:25:06,664 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:25:06,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:25:06,664 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:25:06,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:25:06,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:25:06,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:25:06,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:25:06,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:25:06,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:25:06,665 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:25:06,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:25:06,666 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:25:06,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:25:06,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:25:06,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:25:06,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:25:06,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:25:06,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:25:06,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:25:06,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:25:06,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:25:06,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:25:06,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:25:06,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:25:06,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:25:06,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f841b6aef5f414fec53f63b7daa049c759482c9a [2020-10-24 23:25:07,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:25:07,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:25:07,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:25:07,152 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:25:07,157 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:25:07,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2020-10-24 23:25:07,248 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/552b72548/4b1dc4964a82449286d8ade2cf31daac/FLAG3418a1d62 [2020-10-24 23:25:07,910 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:25:07,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2020-10-24 23:25:07,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/552b72548/4b1dc4964a82449286d8ade2cf31daac/FLAG3418a1d62 [2020-10-24 23:25:08,249 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/552b72548/4b1dc4964a82449286d8ade2cf31daac [2020-10-24 23:25:08,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:25:08,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:25:08,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:25:08,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:25:08,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:25:08,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:08" (1/1) ... [2020-10-24 23:25:08,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77808536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:08, skipping insertion in model container [2020-10-24 23:25:08,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:08" (1/1) ... [2020-10-24 23:25:08,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:25:08,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:25:08,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:25:08,560 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:25:08,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:25:08,601 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:25:08,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:08 WrapperNode [2020-10-24 23:25:08,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:25:08,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:25:08,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:25:08,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:25:08,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:08" (1/1) ... [2020-10-24 23:25:08,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:08" (1/1) ... [2020-10-24 23:25:08,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:25:08,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:25:08,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:25:08,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:25:08,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:08" (1/1) ... [2020-10-24 23:25:08,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:08" (1/1) ... [2020-10-24 23:25:08,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:08" (1/1) ... [2020-10-24 23:25:08,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:08" (1/1) ... [2020-10-24 23:25:08,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:08" (1/1) ... [2020-10-24 23:25:08,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:08" (1/1) ... [2020-10-24 23:25:08,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:08" (1/1) ... [2020-10-24 23:25:08,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:25:08,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:25:08,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:25:08,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:25:08,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:08" (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 [2020-10-24 23:25:08,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:25:08,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:25:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:25:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:25:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:25:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:25:08,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:25:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:25:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:25:09,144 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:25:09,144 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-24 23:25:09,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:09 BoogieIcfgContainer [2020-10-24 23:25:09,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:25:09,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:25:09,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:25:09,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:25:09,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:25:08" (1/3) ... [2020-10-24 23:25:09,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db3eef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:09, skipping insertion in model container [2020-10-24 23:25:09,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:08" (2/3) ... [2020-10-24 23:25:09,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db3eef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:09, skipping insertion in model container [2020-10-24 23:25:09,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:09" (3/3) ... [2020-10-24 23:25:09,157 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010.c [2020-10-24 23:25:09,172 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:25:09,178 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:25:09,193 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:25:09,224 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:25:09,224 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:25:09,224 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:25:09,224 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:25:09,224 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:25:09,225 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:25:09,225 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:25:09,225 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:25:09,242 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-10-24 23:25:09,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 23:25:09,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:09,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:09,250 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:09,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:09,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1641238961, now seen corresponding path program 1 times [2020-10-24 23:25:09,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:25:09,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904891819] [2020-10-24 23:25:09,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:25:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:09,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:09,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904891819] [2020-10-24 23:25:09,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:09,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:25:09,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713547104] [2020-10-24 23:25:09,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:25:09,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:25:09,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:25:09,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:25:09,497 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2020-10-24 23:25:09,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:09,521 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2020-10-24 23:25:09,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:25:09,523 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-24 23:25:09,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:09,533 INFO L225 Difference]: With dead ends: 29 [2020-10-24 23:25:09,533 INFO L226 Difference]: Without dead ends: 12 [2020-10-24 23:25:09,536 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 [2020-10-24 23:25:09,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-24 23:25:09,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-24 23:25:09,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-24 23:25:09,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-10-24 23:25:09,576 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2020-10-24 23:25:09,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:09,577 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-10-24 23:25:09,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:25:09,577 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-10-24 23:25:09,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:25:09,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:09,578 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:09,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:25:09,579 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:09,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:09,580 INFO L82 PathProgramCache]: Analyzing trace with hash 558246130, now seen corresponding path program 1 times [2020-10-24 23:25:09,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:25:09,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378248915] [2020-10-24 23:25:09,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:25:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:25:09,633 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:25:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:25:09,668 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:25:09,700 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:25:09,700 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:25:09,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:25:09,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:25:09 BoogieIcfgContainer [2020-10-24 23:25:09,735 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:25:09,736 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:25:09,736 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:25:09,736 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:25:09,737 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:09" (3/4) ... [2020-10-24 23:25:09,741 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:25:09,741 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:25:09,744 INFO L168 Benchmark]: Toolchain (without parser) took 1483.30 ms. Allocated memory is still 56.6 MB. Free memory was 33.8 MB in the beginning and 25.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:09,745 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 44.0 MB. Free memory was 22.1 MB in the beginning and 22.1 MB in the end (delta: 32.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:09,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.09 ms. Allocated memory is still 56.6 MB. Free memory was 33.1 MB in the beginning and 36.6 MB in the end (delta: -3.5 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:09,747 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.37 ms. Allocated memory is still 56.6 MB. Free memory was 36.6 MB in the beginning and 35.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:09,748 INFO L168 Benchmark]: Boogie Preprocessor took 31.21 ms. Allocated memory is still 56.6 MB. Free memory was 35.2 MB in the beginning and 33.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:09,749 INFO L168 Benchmark]: RCFGBuilder took 467.53 ms. Allocated memory is still 56.6 MB. Free memory was 33.8 MB in the beginning and 33.9 MB in the end (delta: -24.6 kB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:09,750 INFO L168 Benchmark]: TraceAbstraction took 586.28 ms. Allocated memory is still 56.6 MB. Free memory was 33.4 MB in the beginning and 26.2 MB in the end (delta: 7.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:09,751 INFO L168 Benchmark]: Witness Printer took 5.67 ms. Allocated memory is still 56.6 MB. Free memory was 26.2 MB in the beginning and 25.6 MB in the end (delta: 556.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:09,757 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 44.0 MB. Free memory was 22.1 MB in the beginning and 22.1 MB in the end (delta: 32.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 333.09 ms. Allocated memory is still 56.6 MB. Free memory was 33.1 MB in the beginning and 36.6 MB in the end (delta: -3.5 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.37 ms. Allocated memory is still 56.6 MB. Free memory was 36.6 MB in the beginning and 35.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.21 ms. Allocated memory is still 56.6 MB. Free memory was 35.2 MB in the beginning and 33.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 467.53 ms. Allocated memory is still 56.6 MB. Free memory was 33.8 MB in the beginning and 33.9 MB in the end (delta: -24.6 kB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 586.28 ms. Allocated memory is still 56.6 MB. Free memory was 33.4 MB in the beginning and 26.2 MB in the end (delta: 7.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.67 ms. Allocated memory is still 56.6 MB. Free memory was 26.2 MB in the beginning and 25.6 MB in the end (delta: 556.2 kB). There was no memory consumed. Max. memory is 16.1 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 14, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseAnd at line 25. Possible FailurePath: [L37] float x = 0.0f / 0.0f; [L17] __uint32_t ix; [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (ix) = gf_u.word [L24] ieee_float_shape_type sf_u; [L25] sf_u.word = (ix & 0x7fffffff) [L26] EXPR sf_u.value [L26] (x) = sf_u.value [L28] return x; [L38] float res = fabs_float(x); [L14] return x != x; [L41] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_1010.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 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=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 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 0.2.0-a4ecdab [2020-10-24 23:25:12,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:25:12,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:25:12,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:25:12,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:25:12,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:25:12,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:25:12,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:25:12,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:25:12,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:25:12,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:25:12,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:25:12,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:25:12,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:25:12,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:25:12,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:25:12,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:25:12,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:25:12,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:25:12,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:25:12,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:25:12,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:25:12,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:25:12,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:25:12,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:25:12,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:25:12,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:25:12,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:25:12,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:25:12,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:25:12,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:25:12,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:25:12,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:25:12,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:25:12,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:25:12,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:25:12,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:25:12,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:25:12,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:25:12,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:25:12,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:25:12,623 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:25:12,682 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:25:12,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:25:12,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:25:12,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:25:12,687 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:25:12,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:25:12,688 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:25:12,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:25:12,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:25:12,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:25:12,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:25:12,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:25:12,691 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:25:12,691 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:25:12,691 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:25:12,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:25:12,692 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:25:12,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:25:12,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:25:12,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:25:12,693 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:25:12,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:25:12,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:25:12,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:25:12,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:25:12,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:25:12,695 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:25:12,695 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:25:12,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:25:12,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:25:12,696 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:25:12,696 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f841b6aef5f414fec53f63b7daa049c759482c9a [2020-10-24 23:25:13,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:25:13,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:25:13,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:25:13,148 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:25:13,149 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:25:13,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2020-10-24 23:25:13,234 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea2471bf7/3685df0f723d4beeb2445abc5e54cee6/FLAGb98b995f3 [2020-10-24 23:25:13,826 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:25:13,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2020-10-24 23:25:13,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea2471bf7/3685df0f723d4beeb2445abc5e54cee6/FLAGb98b995f3 [2020-10-24 23:25:14,219 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea2471bf7/3685df0f723d4beeb2445abc5e54cee6 [2020-10-24 23:25:14,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:25:14,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:25:14,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:25:14,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:25:14,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:25:14,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:14" (1/1) ... [2020-10-24 23:25:14,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7845767a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:14, skipping insertion in model container [2020-10-24 23:25:14,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:14" (1/1) ... [2020-10-24 23:25:14,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:25:14,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:25:14,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:25:14,518 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:25:14,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:25:14,565 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:25:14,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:14 WrapperNode [2020-10-24 23:25:14,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:25:14,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:25:14,568 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:25:14,568 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:25:14,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:14" (1/1) ... [2020-10-24 23:25:14,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:14" (1/1) ... [2020-10-24 23:25:14,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:25:14,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:25:14,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:25:14,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:25:14,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:14" (1/1) ... [2020-10-24 23:25:14,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:14" (1/1) ... [2020-10-24 23:25:14,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:14" (1/1) ... [2020-10-24 23:25:14,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:14" (1/1) ... [2020-10-24 23:25:14,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:14" (1/1) ... [2020-10-24 23:25:14,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:14" (1/1) ... [2020-10-24 23:25:14,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:14" (1/1) ... [2020-10-24 23:25:14,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:25:14,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:25:14,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:25:14,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:25:14,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:14" (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 [2020-10-24 23:25:14,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:25:14,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:25:14,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-24 23:25:14,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:25:14,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:25:14,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:25:14,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-24 23:25:14,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:25:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:25:15,193 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:25:15,194 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-24 23:25:15,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:15 BoogieIcfgContainer [2020-10-24 23:25:15,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:25:15,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:25:15,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:25:15,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:25:15,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:25:14" (1/3) ... [2020-10-24 23:25:15,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8cf21b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:15, skipping insertion in model container [2020-10-24 23:25:15,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:14" (2/3) ... [2020-10-24 23:25:15,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8cf21b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:15, skipping insertion in model container [2020-10-24 23:25:15,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:15" (3/3) ... [2020-10-24 23:25:15,214 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010.c [2020-10-24 23:25:15,244 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:25:15,257 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:25:15,286 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:25:15,321 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:25:15,322 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:25:15,322 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:25:15,322 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:25:15,323 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:25:15,323 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:25:15,323 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:25:15,323 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:25:15,339 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-10-24 23:25:15,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 23:25:15,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:15,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:15,348 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:15,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:15,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1641238961, now seen corresponding path program 1 times [2020-10-24 23:25:15,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:25:15,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1947644033] [2020-10-24 23:25:15,371 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 [2020-10-24 23:25:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:15,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:25:15,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:25:15,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:15,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:25:15,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:15,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1947644033] [2020-10-24 23:25:15,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:15,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:25:15,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130363684] [2020-10-24 23:25:15,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:25:15,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:25:15,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:25:15,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:25:15,577 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2020-10-24 23:25:15,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:15,595 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2020-10-24 23:25:15,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:25:15,597 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-24 23:25:15,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:15,606 INFO L225 Difference]: With dead ends: 29 [2020-10-24 23:25:15,606 INFO L226 Difference]: Without dead ends: 12 [2020-10-24 23:25:15,610 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 [2020-10-24 23:25:15,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-24 23:25:15,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-24 23:25:15,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-24 23:25:15,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-10-24 23:25:15,646 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2020-10-24 23:25:15,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:15,646 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-10-24 23:25:15,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:25:15,646 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-10-24 23:25:15,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:25:15,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:15,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:15,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:25:15,861 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:15,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:15,863 INFO L82 PathProgramCache]: Analyzing trace with hash 558246130, now seen corresponding path program 1 times [2020-10-24 23:25:15,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:25:15,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701667319] [2020-10-24 23:25:15,864 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 [2020-10-24 23:25:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:16,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-24 23:25:16,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:25:16,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:16,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:25:16,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:16,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701667319] [2020-10-24 23:25:16,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:16,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2020-10-24 23:25:16,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968657097] [2020-10-24 23:25:16,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-24 23:25:16,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:25:16,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-24 23:25:16,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-24 23:25:16,521 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 12 states. [2020-10-24 23:25:16,982 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 22 [2020-10-24 23:25:17,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:17,096 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-10-24 23:25:17,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 23:25:17,097 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 11 [2020-10-24 23:25:17,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:17,097 INFO L225 Difference]: With dead ends: 12 [2020-10-24 23:25:17,097 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 23:25:17,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-24 23:25:17,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 23:25:17,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 23:25:17,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 23:25:17,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 23:25:17,100 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-10-24 23:25:17,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:17,100 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 23:25:17,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-24 23:25:17,100 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 23:25:17,100 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 23:25:17,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:25:17,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 23:25:17,423 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 23:25:17,423 INFO L274 CegarLoopResult]: For program point L23(lines 23 27) no Hoare annotation was computed. [2020-10-24 23:25:17,423 INFO L274 CegarLoopResult]: For program point L23-1(lines 16 29) no Hoare annotation was computed. [2020-10-24 23:25:17,424 INFO L274 CegarLoopResult]: For program point L23-2(lines 23 27) no Hoare annotation was computed. [2020-10-24 23:25:17,424 INFO L277 CegarLoopResult]: At program point L46(lines 31 47) the Hoare annotation is: true [2020-10-24 23:25:17,424 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 23:25:17,424 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 23:25:17,424 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 23:25:17,424 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 23:25:17,424 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 23:25:17,425 INFO L270 CegarLoopResult]: At program point L28(lines 16 29) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x)) (not (let ((.cse0 (let ((.cse1 (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_float_~ix~0))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (fp.eq .cse0 .cse0))) (not (fp.eq |ULTIMATE.start_fabs_float_#res| |ULTIMATE.start_fabs_float_#res|))) [2020-10-24 23:25:17,425 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 23:25:17,425 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-10-24 23:25:17,425 INFO L270 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: (not (fp.eq ULTIMATE.start_fabs_float_~x ULTIMATE.start_fabs_float_~x)) [2020-10-24 23:25:17,426 INFO L270 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x)) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (let ((.cse0 (let ((.cse1 (bvand (_ bv2147483647 32) ULTIMATE.start_fabs_float_~ix~0))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (fp.eq .cse0 .cse0))) (not (fp.eq |ULTIMATE.start_fabs_float_#res| |ULTIMATE.start_fabs_float_#res|))) [2020-10-24 23:25:17,426 INFO L274 CegarLoopResult]: For program point L41(lines 41 44) no Hoare annotation was computed. [2020-10-24 23:25:17,442 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 23:25:17,444 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 23:25:17,445 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 23:25:17,446 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 23:25:17,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:25:17 BoogieIcfgContainer [2020-10-24 23:25:17,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:25:17,450 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:25:17,450 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:25:17,450 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:25:17,451 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:15" (3/4) ... [2020-10-24 23:25:17,455 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 23:25:17,468 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-24 23:25:17,468 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 23:25:17,468 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-24 23:25:17,469 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:25:17,522 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:25:17,523 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:25:17,525 INFO L168 Benchmark]: Toolchain (without parser) took 3299.12 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 40.0 MB in the beginning and 60.1 MB in the end (delta: -20.1 MB). Peak memory consumption was 33.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:17,526 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 41.9 MB. Free memory was 19.9 MB in the beginning and 19.9 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:17,526 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.07 ms. Allocated memory is still 62.9 MB. Free memory was 39.3 MB in the beginning and 44.2 MB in the end (delta: -4.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:17,527 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.44 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 42.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:17,528 INFO L168 Benchmark]: Boogie Preprocessor took 38.02 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 41.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:17,529 INFO L168 Benchmark]: RCFGBuilder took 542.13 ms. Allocated memory is still 62.9 MB. Free memory was 41.2 MB in the beginning and 42.8 MB in the end (delta: -1.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:17,530 INFO L168 Benchmark]: TraceAbstraction took 2250.28 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 42.4 MB in the beginning and 26.8 MB in the end (delta: 15.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:17,530 INFO L168 Benchmark]: Witness Printer took 72.74 ms. Allocated memory is still 77.6 MB. Free memory was 26.8 MB in the beginning and 60.1 MB in the end (delta: -33.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:17,535 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 41.9 MB. Free memory was 19.9 MB in the beginning and 19.9 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 334.07 ms. Allocated memory is still 62.9 MB. Free memory was 39.3 MB in the beginning and 44.2 MB in the end (delta: -4.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.44 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 42.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.02 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 41.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 542.13 ms. Allocated memory is still 62.9 MB. Free memory was 41.2 MB in the beginning and 42.8 MB in the end (delta: -1.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2250.28 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 42.4 MB in the beginning and 26.8 MB in the end (delta: 15.6 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. * Witness Printer took 72.74 ms. Allocated memory is still 77.6 MB. Free memory was 26.8 MB in the beginning and 60.1 MB in the end (delta: -33.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * 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: 18]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(x, x) - InvariantResult [Line: 16]: Loop Invariant [2020-10-24 23:25:17,545 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 23:25:17,546 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(~bvand32(2147483647bv32, ix)[31:31], ~bvand32(2147483647bv32, ix)[30:23], ~bvand32(2147483647bv32, ix)[22:0]), ~fp~LONGDOUBLE(~bvand32(2147483647bv32, ix)[31:31], ~bvand32(2147483647bv32, ix)[30:23], ~bvand32(2147483647bv32, ix)[22:0]))) && !~fp.eq~FLOAT(\result, \result) - InvariantResult [Line: 14]: Loop Invariant [2020-10-24 23:25:17,547 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-24 23:25:17,548 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && 1bv32 == \result) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(~bvand32(2147483647bv32, ix)[31:31], ~bvand32(2147483647bv32, ix)[30:23], ~bvand32(2147483647bv32, ix)[22:0]), ~fp~LONGDOUBLE(~bvand32(2147483647bv32, ix)[31:31], ~bvand32(2147483647bv32, ix)[30:23], ~bvand32(2147483647bv32, ix)[22:0]))) && !~fp.eq~FLOAT(\result, \result) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 12 SDslu, 16 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 88 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 36 ConstructedInterpolants, 6 QuantifiedInterpolants, 1568 SizeOfPredicates, 13 NumberOfNonLiveVariables, 87 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...