./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer --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=/tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer --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 0.2.0-a4ecdab [2020-11-29 19:08:29,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:08:29,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:08:29,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:08:29,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:08:29,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:08:29,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:08:29,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:08:29,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:08:29,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:08:29,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:08:29,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:08:29,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:08:29,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:08:29,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:08:29,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:08:29,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:08:29,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:08:29,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:08:29,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:08:29,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:08:29,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:08:29,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:08:29,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:08:29,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:08:29,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:08:29,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:08:29,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:08:29,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:08:29,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:08:29,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:08:29,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:08:29,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:08:29,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:08:29,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:08:29,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:08:29,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:08:29,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:08:29,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:08:29,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:08:29,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:08:29,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:08:29,887 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:08:29,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:08:29,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:08:29,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:08:29,889 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:08:29,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:08:29,890 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:08:29,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:08:29,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:08:29,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:08:29,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:08:29,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:08:29,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:08:29,892 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:08:29,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:08:29,893 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:08:29,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:08:29,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:08:29,894 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:08:29,894 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:08:29,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:08:29,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:08:29,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:08:29,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:08:29,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:08:29,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:08:29,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:08:29,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:08:29,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:08:29,897 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:/tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f171dd4f575b92a9302785470b2bac89695cbf3 [2020-11-29 19:08:30,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:08:30,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:08:30,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:08:30,291 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:08:30,294 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:08:30,295 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-11-29 19:08:30,382 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/data/6bb0acea4/d451c949bd3846f0ab9dd812323f1970/FLAGc461e4c73 [2020-11-29 19:08:30,929 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:08:30,930 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-11-29 19:08:30,937 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/data/6bb0acea4/d451c949bd3846f0ab9dd812323f1970/FLAGc461e4c73 [2020-11-29 19:08:31,295 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/data/6bb0acea4/d451c949bd3846f0ab9dd812323f1970 [2020-11-29 19:08:31,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:08:31,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:08:31,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:08:31,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:08:31,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:08:31,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:08:31" (1/1) ... [2020-11-29 19:08:31,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e97a7c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:31, skipping insertion in model container [2020-11-29 19:08:31,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:08:31" (1/1) ... [2020-11-29 19:08:31,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:08:31,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:08:31,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:08:31,608 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:08:31,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:08:31,666 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:08:31,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:31 WrapperNode [2020-11-29 19:08:31,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:08:31,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:08:31,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:08:31,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:08:31,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:31" (1/1) ... [2020-11-29 19:08:31,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:31" (1/1) ... [2020-11-29 19:08:31,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:08:31,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:08:31,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:08:31,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:08:31,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:31" (1/1) ... [2020-11-29 19:08:31,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:31" (1/1) ... [2020-11-29 19:08:31,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:31" (1/1) ... [2020-11-29 19:08:31,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:31" (1/1) ... [2020-11-29 19:08:31,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:31" (1/1) ... [2020-11-29 19:08:31,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:31" (1/1) ... [2020-11-29 19:08:31,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:31" (1/1) ... [2020-11-29 19:08:31,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:08:31,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:08:31,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:08:31,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:08:31,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:08:31,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:08:31,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:08:31,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:08:31,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 19:08:31,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 19:08:31,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:08:31,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:08:31,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:08:31,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-29 19:08:31,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:08:32,387 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:08:32,387 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-29 19:08:32,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:08:32 BoogieIcfgContainer [2020-11-29 19:08:32,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:08:32,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:08:32,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:08:32,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:08:32,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:08:31" (1/3) ... [2020-11-29 19:08:32,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197bb833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:08:32, skipping insertion in model container [2020-11-29 19:08:32,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:31" (2/3) ... [2020-11-29 19:08:32,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197bb833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:08:32, skipping insertion in model container [2020-11-29 19:08:32,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:08:32" (3/3) ... [2020-11-29 19:08:32,399 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2020-11-29 19:08:32,416 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:08:32,420 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:08:32,435 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:08:32,477 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:08:32,478 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:08:32,478 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:08:32,478 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:08:32,478 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:08:32,478 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:08:32,478 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:08:32,478 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:08:32,493 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-29 19:08:32,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 19:08:32,499 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:08:32,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:08:32,501 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:08:32,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:08:32,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2020-11-29 19:08:32,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:08:32,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920666711] [2020-11-29 19:08:32,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:08:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:08:32,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:08:32,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920666711] [2020-11-29 19:08:32,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:08:32,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:08:32,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708469343] [2020-11-29 19:08:32,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:08:32,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:08:32,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:08:32,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:08:32,738 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-29 19:08:32,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:08:32,776 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2020-11-29 19:08:32,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:08:32,778 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 19:08:32,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:08:32,807 INFO L225 Difference]: With dead ends: 73 [2020-11-29 19:08:32,807 INFO L226 Difference]: Without dead ends: 34 [2020-11-29 19:08:32,811 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 [2020-11-29 19:08:32,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-29 19:08:32,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-29 19:08:32,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 19:08:32,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2020-11-29 19:08:32,865 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2020-11-29 19:08:32,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:08:32,865 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2020-11-29 19:08:32,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:08:32,866 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2020-11-29 19:08:32,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:08:32,867 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:08:32,868 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:08:32,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:08:32,869 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:08:32,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:08:32,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2020-11-29 19:08:32,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:08:32,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207380513] [2020-11-29 19:08:32,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:08:32,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:08:32,996 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:08:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:08:33,042 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:08:33,094 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:08:33,095 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:08:33,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:08:33,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:08:33 BoogieIcfgContainer [2020-11-29 19:08:33,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:08:33,181 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:08:33,181 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:08:33,182 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:08:33,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:08:32" (3/4) ... [2020-11-29 19:08:33,186 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:08:33,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:08:33,192 INFO L168 Benchmark]: Toolchain (without parser) took 1888.32 ms. Allocated memory was 90.2 MB in the beginning and 123.7 MB in the end (delta: 33.6 MB). Free memory was 59.8 MB in the beginning and 45.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 47.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:08:33,194 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 90.2 MB. Free memory was 48.6 MB in the beginning and 48.5 MB in the end (delta: 34.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:08:33,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.23 ms. Allocated memory was 90.2 MB in the beginning and 123.7 MB in the end (delta: 33.6 MB). Free memory was 59.6 MB in the beginning and 98.9 MB in the end (delta: -39.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:08:33,197 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.83 ms. Allocated memory is still 123.7 MB. Free memory was 98.9 MB in the beginning and 96.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:08:33,198 INFO L168 Benchmark]: Boogie Preprocessor took 41.61 ms. Allocated memory is still 123.7 MB. Free memory was 96.8 MB in the beginning and 95.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:08:33,200 INFO L168 Benchmark]: RCFGBuilder took 615.15 ms. Allocated memory is still 123.7 MB. Free memory was 94.7 MB in the beginning and 71.0 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:08:33,201 INFO L168 Benchmark]: TraceAbstraction took 790.85 ms. Allocated memory is still 123.7 MB. Free memory was 70.3 MB in the beginning and 45.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:08:33,202 INFO L168 Benchmark]: Witness Printer took 5.80 ms. Allocated memory is still 123.7 MB. Free memory is still 45.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:08:33,218 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 90.2 MB. Free memory was 48.6 MB in the beginning and 48.5 MB in the end (delta: 34.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 366.23 ms. Allocated memory was 90.2 MB in the beginning and 123.7 MB in the end (delta: 33.6 MB). Free memory was 59.6 MB in the beginning and 98.9 MB in the end (delta: -39.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.83 ms. Allocated memory is still 123.7 MB. Free memory was 98.9 MB in the beginning and 96.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.61 ms. Allocated memory is still 123.7 MB. Free memory was 96.8 MB in the beginning and 95.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 615.15 ms. Allocated memory is still 123.7 MB. Free memory was 94.7 MB in the beginning and 71.0 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 790.85 ms. Allocated memory is still 123.7 MB. Free memory was 70.3 MB in the beginning and 45.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 5.80 ms. Allocated memory is still 123.7 MB. Free memory is still 45.1 MB. 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 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: 0.6s, 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 0.2.0-a4ecdab [2020-11-29 19:08:36,313 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-11-29 19:08:36,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:08:36,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:08:36,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:08:36,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:08:36,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:08:36,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:08:36,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:08:36,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:08:36,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:08:36,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:08:36,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:08:36,499 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 19:08:36,555 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:08:36,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:08:36,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:08:36,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:08:36,560 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:08:36,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:08:36,560 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:08:36,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:08:36,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:08:36,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:08:36,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:08:36,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:08:36,563 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 19:08:36,563 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 19:08:36,563 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:08:36,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:08:36,564 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:08:36,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:08:36,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:08:36,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:08:36,565 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:08:36,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:08:36,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:08:36,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:08:36,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:08:36,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:08:36,566 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 19:08:36,566 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 19:08:36,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:08:36,567 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:08:36,567 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 19:08:36,567 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:/tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f171dd4f575b92a9302785470b2bac89695cbf3 [2020-11-29 19:08:37,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:08:37,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:08:37,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:08:37,189 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:08:37,190 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:08:37,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-11-29 19:08:37,269 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/data/527ef04e5/08097504ad4b4ca0b20323762623bacd/FLAGaf0398cca [2020-11-29 19:08:38,012 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:08:38,012 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-11-29 19:08:38,022 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/data/527ef04e5/08097504ad4b4ca0b20323762623bacd/FLAGaf0398cca [2020-11-29 19:08:38,316 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/data/527ef04e5/08097504ad4b4ca0b20323762623bacd [2020-11-29 19:08:38,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:08:38,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:08:38,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:08:38,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:08:38,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:08:38,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:08:38" (1/1) ... [2020-11-29 19:08:38,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f475610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:38, skipping insertion in model container [2020-11-29 19:08:38,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:08:38" (1/1) ... [2020-11-29 19:08:38,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:08:38,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:08:38,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:08:38,686 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:08:38,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:08:38,839 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:08:38,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:38 WrapperNode [2020-11-29 19:08:38,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:08:38,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:08:38,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:08:38,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:08:38,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:38" (1/1) ... [2020-11-29 19:08:38,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:38" (1/1) ... [2020-11-29 19:08:38,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:08:38,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:08:38,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:08:38,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:08:38,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:38" (1/1) ... [2020-11-29 19:08:38,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:38" (1/1) ... [2020-11-29 19:08:38,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:38" (1/1) ... [2020-11-29 19:08:38,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:38" (1/1) ... [2020-11-29 19:08:39,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:38" (1/1) ... [2020-11-29 19:08:39,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:38" (1/1) ... [2020-11-29 19:08:39,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:38" (1/1) ... [2020-11-29 19:08:39,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:08:39,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:08:39,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:08:39,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:08:39,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:08:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-29 19:08:39,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 19:08:39,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:08:39,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-29 19:08:39,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 19:08:39,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:08:39,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:08:39,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-29 19:08:39,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 19:08:39,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:08:49,312 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:08:49,315 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-29 19:08:49,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:08:49 BoogieIcfgContainer [2020-11-29 19:08:49,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:08:49,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:08:49,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:08:49,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:08:49,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:08:38" (1/3) ... [2020-11-29 19:08:49,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc6e7d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:08:49, skipping insertion in model container [2020-11-29 19:08:49,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:38" (2/3) ... [2020-11-29 19:08:49,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc6e7d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:08:49, skipping insertion in model container [2020-11-29 19:08:49,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:08:49" (3/3) ... [2020-11-29 19:08:49,331 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2020-11-29 19:08:49,345 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:08:49,351 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:08:49,365 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:08:49,404 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:08:49,404 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:08:49,404 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:08:49,404 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:08:49,404 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:08:49,404 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:08:49,404 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:08:49,404 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:08:49,420 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-29 19:08:49,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 19:08:49,427 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:08:49,428 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:08:49,428 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:08:49,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:08:49,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2020-11-29 19:08:49,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:08:49,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582849763] [2020-11-29 19:08:49,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 19:08:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:08:50,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 19:08:50,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:08:50,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:08:50,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:08:50,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:08:50,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582849763] [2020-11-29 19:08:50,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:08:50,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 19:08:50,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437901652] [2020-11-29 19:08:50,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:08:50,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:08:50,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:08:50,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:08:50,459 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-29 19:08:50,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:08:50,499 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2020-11-29 19:08:50,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:08:50,501 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 19:08:50,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:08:50,517 INFO L225 Difference]: With dead ends: 73 [2020-11-29 19:08:50,517 INFO L226 Difference]: Without dead ends: 34 [2020-11-29 19:08:50,522 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 [2020-11-29 19:08:50,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-29 19:08:50,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-29 19:08:50,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 19:08:50,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2020-11-29 19:08:50,582 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2020-11-29 19:08:50,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:08:50,583 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2020-11-29 19:08:50,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:08:50,584 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2020-11-29 19:08:50,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:08:50,585 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:08:50,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:08:50,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 19:08:50,803 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:08:50,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:08:50,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2020-11-29 19:08:50,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:08:50,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841166128] [2020-11-29 19:08:50,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/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 [2020-11-29 19:08:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:08:51,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 19:08:51,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:08:51,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:08:51,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:08:52,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:08:52,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841166128] [2020-11-29 19:08:52,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:08:52,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-29 19:08:52,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518458491] [2020-11-29 19:08:52,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 19:08:52,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:08:52,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 19:08:52,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-29 19:08:52,223 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand 10 states. [2020-11-29 19:09:12,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:12,349 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-11-29 19:09:12,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 19:09:12,350 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2020-11-29 19:09:12,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:12,351 INFO L225 Difference]: With dead ends: 50 [2020-11-29 19:09:12,352 INFO L226 Difference]: Without dead ends: 42 [2020-11-29 19:09:12,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-29 19:09:12,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-29 19:09:12,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2020-11-29 19:09:12,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 19:09:12,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2020-11-29 19:09:12,359 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 10 [2020-11-29 19:09:12,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:12,359 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2020-11-29 19:09:12,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 19:09:12,359 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2020-11-29 19:09:12,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 19:09:12,360 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:09:12,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:09:12,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 19:09:12,583 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:09:12,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:09:12,584 INFO L82 PathProgramCache]: Analyzing trace with hash 228797714, now seen corresponding path program 1 times [2020-11-29 19:09:12,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:09:12,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090027059] [2020-11-29 19:09:12,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/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 [2020-11-29 19:09:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:09:13,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 19:09:13,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:09:13,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:13,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:09:13,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:09:13,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090027059] [2020-11-29 19:09:13,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:09:13,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 7] imperfect sequences [] total 10 [2020-11-29 19:09:13,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91454435] [2020-11-29 19:09:13,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 19:09:13,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:09:13,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 19:09:13,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-11-29 19:09:13,725 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 10 states. [2020-11-29 19:09:13,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:09:13,875 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2020-11-29 19:09:13,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:09:13,876 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2020-11-29 19:09:13,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:09:13,876 INFO L225 Difference]: With dead ends: 34 [2020-11-29 19:09:13,876 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 19:09:13,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-11-29 19:09:13,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 19:09:13,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 19:09:13,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 19:09:13,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:09:13,878 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-29 19:09:13,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:09:13,878 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:09:13,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 19:09:13,878 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:09:13,878 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:09:14,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 19:09:14,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 19:09:14,233 INFO L274 CegarLoopResult]: For program point L60(lines 60 75) no Hoare annotation was computed. [2020-11-29 19:09:14,233 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 19:09:14,233 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 19:09:14,234 INFO L277 CegarLoopResult]: At program point L127(lines 113 128) the Hoare annotation is: true [2020-11-29 19:09:14,234 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 19:09:14,234 INFO L274 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2020-11-29 19:09:14,234 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 19:09:14,234 INFO L274 CegarLoopResult]: For program point L61-2(lines 61 70) no Hoare annotation was computed. [2020-11-29 19:09:14,234 INFO L274 CegarLoopResult]: For program point L53(lines 53 54) no Hoare annotation was computed. [2020-11-29 19:09:14,234 INFO L274 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2020-11-29 19:09:14,234 INFO L270 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: false [2020-11-29 19:09:14,235 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-11-29 19:09:14,235 INFO L274 CegarLoopResult]: For program point L54-2(line 54) no Hoare annotation was computed. [2020-11-29 19:09:14,235 INFO L274 CegarLoopResult]: For program point L104(lines 104 108) no Hoare annotation was computed. [2020-11-29 19:09:14,244 INFO L274 CegarLoopResult]: For program point L104-1(lines 97 110) no Hoare annotation was computed. [2020-11-29 19:09:14,244 INFO L274 CegarLoopResult]: For program point L104-2(lines 104 108) no Hoare annotation was computed. [2020-11-29 19:09:14,244 INFO L274 CegarLoopResult]: For program point L55(lines 55 56) no Hoare annotation was computed. [2020-11-29 19:09:14,244 INFO L274 CegarLoopResult]: For program point L80(lines 80 83) no Hoare annotation was computed. [2020-11-29 19:09:14,245 INFO L274 CegarLoopResult]: For program point L72(lines 72 75) no Hoare annotation was computed. [2020-11-29 19:09:14,245 INFO L274 CegarLoopResult]: For program point L72-2(lines 60 75) no Hoare annotation was computed. [2020-11-29 19:09:14,245 INFO L274 CegarLoopResult]: For program point L122(lines 122 125) no Hoare annotation was computed. [2020-11-29 19:09:14,245 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|)) [2020-11-29 19:09:14,245 INFO L274 CegarLoopResult]: For program point L73(lines 73 74) no Hoare annotation was computed. [2020-11-29 19:09:14,245 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 19:09:14,247 INFO L274 CegarLoopResult]: For program point L57(lines 57 58) no Hoare annotation was computed. [2020-11-29 19:09:14,247 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 19:09:14,247 INFO L274 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-11-29 19:09:14,247 INFO L270 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-11-29 19:09:14,247 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 19:09:14,248 INFO L274 CegarLoopResult]: For program point L91(lines 91 95) no Hoare annotation was computed. [2020-11-29 19:09:14,248 INFO L274 CegarLoopResult]: For program point L91-1(lines 84 97) no Hoare annotation was computed. [2020-11-29 19:09:14,248 INFO L274 CegarLoopResult]: For program point L91-2(lines 91 95) no Hoare annotation was computed. [2020-11-29 19:09:14,248 INFO L274 CegarLoopResult]: For program point L84(lines 84 110) no Hoare annotation was computed. [2020-11-29 19:09:14,248 INFO L274 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2020-11-29 19:09:14,249 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)) [2020-11-29 19:09:14,249 INFO L274 CegarLoopResult]: For program point L43-1(lines 43 47) no Hoare annotation was computed. [2020-11-29 19:09:14,250 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))) [2020-11-29 19:09:14,250 INFO L274 CegarLoopResult]: For program point L43-3(lines 43 47) no Hoare annotation was computed. [2020-11-29 19:09:14,260 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,261 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,261 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,262 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,263 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:09:14,264 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:09:14,268 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,268 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,268 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,269 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,269 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:09:14,269 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:09:14,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:09:14,272 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:09:14,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,273 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,273 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,274 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:09:14,274 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:09:14,275 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,275 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:09:14,276 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:09:14,276 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,276 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:09:14,277 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:09:14,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:09:14 BoogieIcfgContainer [2020-11-29 19:09:14,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:09:14,279 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:09:14,279 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:09:14,280 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:09:14,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:08:49" (3/4) ... [2020-11-29 19:09:14,286 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:09:14,302 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-29 19:09:14,303 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 19:09:14,304 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:09:14,305 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:09:14,333 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) [2020-11-29 19:09:14,334 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 [2020-11-29 19:09:14,335 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 [2020-11-29 19:09:14,387 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ee445964-ebde-4238-a627-f5e660922331/bin/uautomizer/witness.graphml [2020-11-29 19:09:14,387 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:09:14,389 INFO L168 Benchmark]: Toolchain (without parser) took 36067.23 ms. Allocated memory was 65.0 MB in the beginning and 90.2 MB in the end (delta: 25.2 MB). Free memory was 45.3 MB in the beginning and 60.8 MB in the end (delta: -15.4 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:14,389 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 65.0 MB. Free memory is still 46.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:09:14,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 517.41 ms. Allocated memory is still 65.0 MB. Free memory was 45.2 MB in the beginning and 47.1 MB in the end (delta: -2.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:14,390 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.22 ms. Allocated memory is still 65.0 MB. Free memory was 47.1 MB in the beginning and 45.1 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:09:14,391 INFO L168 Benchmark]: Boogie Preprocessor took 79.54 ms. Allocated memory is still 65.0 MB. Free memory was 44.8 MB in the beginning and 42.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:14,391 INFO L168 Benchmark]: RCFGBuilder took 10296.78 ms. Allocated memory is still 65.0 MB. Free memory was 42.8 MB in the beginning and 35.2 MB in the end (delta: 7.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:14,392 INFO L168 Benchmark]: TraceAbstraction took 24957.37 ms. Allocated memory was 65.0 MB in the beginning and 90.2 MB in the end (delta: 25.2 MB). Free memory was 34.7 MB in the beginning and 67.8 MB in the end (delta: -33.1 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:14,392 INFO L168 Benchmark]: Witness Printer took 108.01 ms. Allocated memory is still 90.2 MB. Free memory was 67.1 MB in the beginning and 60.8 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:09:14,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 65.0 MB. Free memory is still 46.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 517.41 ms. Allocated memory is still 65.0 MB. Free memory was 45.2 MB in the beginning and 47.1 MB in the end (delta: -2.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.22 ms. Allocated memory is still 65.0 MB. Free memory was 47.1 MB in the beginning and 45.1 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.54 ms. Allocated memory is still 65.0 MB. Free memory was 44.8 MB in the beginning and 42.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10296.78 ms. Allocated memory is still 65.0 MB. Free memory was 42.8 MB in the beginning and 35.2 MB in the end (delta: 7.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 24957.37 ms. Allocated memory was 65.0 MB in the beginning and 90.2 MB in the end (delta: 25.2 MB). Free memory was 34.7 MB in the beginning and 67.8 MB in the end (delta: -33.1 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. * Witness Printer took 108.01 ms. Allocated memory is still 90.2 MB. Free memory was 67.1 MB in the beginning and 60.8 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 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 [2020-11-29 19:09:14,403 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,404 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,404 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,404 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:09:14,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:09:14,405 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,405 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,405 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,406 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:09:14,406 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 [2020-11-29 19:09:14,411 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,411 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,412 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,412 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:09:14,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:09:14,413 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,413 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,413 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,413 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,413 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:09:14,414 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 [2020-11-29 19:09:14,420 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,420 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:09:14,420 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 19:09:14,421 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 19:09:14,421 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 19:09:14,422 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: 24.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 20.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 79 SDtfs, 35 SDslu, 195 SDs, 0 SdLazy, 95 SolverSat, 2 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 19.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.2s 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, 8 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, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 1.3s 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...