./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 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0831.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f171dd4f575b92a9302785470b2bac89695cbf3 .................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0831.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f171dd4f575b92a9302785470b2bac89695cbf3 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 21:57:59,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:57:59,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:57:59,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:57:59,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:57:59,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:57:59,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:57:59,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:57:59,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:57:59,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:57:59,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:57:59,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:57:59,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:57:59,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:57:59,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:57:59,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:57:59,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:57:59,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:57:59,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:57:59,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:57:59,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:57:59,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:57:59,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:57:59,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:57:59,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:57:59,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:57:59,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:57:59,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:57:59,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:57:59,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:57:59,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:57:59,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:57:59,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:57:59,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:57:59,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:57:59,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:57:59,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:57:59,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:57:59,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:57:59,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:57:59,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:57:59,733 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 21:57:59,789 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:57:59,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:57:59,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:57:59,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:57:59,794 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:57:59,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:57:59,795 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:57:59,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 21:57:59,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:57:59,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:57:59,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:57:59,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:57:59,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:57:59,798 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:57:59,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:57:59,798 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:57:59,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:57:59,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:57:59,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:57:59,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:57:59,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:57:59,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:57:59,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:57:59,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:57:59,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:57:59,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 21:57:59,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 21:57:59,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:57:59,801 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:57:59,801 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f171dd4f575b92a9302785470b2bac89695cbf3 [2020-10-25 21:58:00,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:58:00,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:58:00,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:58:00,267 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:58:00,268 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:58:00,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-10-25 21:58:00,365 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54961b20f/8a7ed70e6c3b4156bbe0c5bab2cedf90/FLAG03714c9b3 [2020-10-25 21:58:01,160 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:58:01,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-10-25 21:58:01,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54961b20f/8a7ed70e6c3b4156bbe0c5bab2cedf90/FLAG03714c9b3 [2020-10-25 21:58:01,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54961b20f/8a7ed70e6c3b4156bbe0c5bab2cedf90 [2020-10-25 21:58:01,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:58:01,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:58:01,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:58:01,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:58:01,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:58:01,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:58:01" (1/1) ... [2020-10-25 21:58:01,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@89247fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:01, skipping insertion in model container [2020-10-25 21:58:01,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:58:01" (1/1) ... [2020-10-25 21:58:01,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:58:01,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:58:01,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:58:01,842 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:58:01,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:58:01,959 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:58:01,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:01 WrapperNode [2020-10-25 21:58:01,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:58:01,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:58:01,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:58:01,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:58:01,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:01" (1/1) ... [2020-10-25 21:58:01,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:01" (1/1) ... [2020-10-25 21:58:02,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:58:02,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:58:02,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:58:02,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:58:02,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:01" (1/1) ... [2020-10-25 21:58:02,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:01" (1/1) ... [2020-10-25 21:58:02,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:01" (1/1) ... [2020-10-25 21:58:02,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:01" (1/1) ... [2020-10-25 21:58:02,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:01" (1/1) ... [2020-10-25 21:58:02,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:01" (1/1) ... [2020-10-25 21:58:02,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:01" (1/1) ... [2020-10-25 21:58:02,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:58:02,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:58:02,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:58:02,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:58:02,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:58:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 21:58:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:58:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-25 21:58:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-25 21:58:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-25 21:58:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:58:02,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:58:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-25 21:58:02,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-25 21:58:02,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:58:02,935 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:58:02,935 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-25 21:58:02,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:58:02 BoogieIcfgContainer [2020-10-25 21:58:02,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:58:02,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:58:02,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:58:02,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:58:02,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:58:01" (1/3) ... [2020-10-25 21:58:02,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@257cd6d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:58:02, skipping insertion in model container [2020-10-25 21:58:02,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:01" (2/3) ... [2020-10-25 21:58:02,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@257cd6d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:58:02, skipping insertion in model container [2020-10-25 21:58:02,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:58:02" (3/3) ... [2020-10-25 21:58:02,948 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2020-10-25 21:58:02,961 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:58:02,966 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:58:02,981 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:58:03,009 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:58:03,009 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:58:03,009 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:58:03,010 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:58:03,010 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:58:03,010 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:58:03,010 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:58:03,010 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:58:03,027 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-25 21:58:03,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-25 21:58:03,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:58:03,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:58:03,034 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:58:03,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:58:03,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2020-10-25 21:58:03,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:58:03,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264543810] [2020-10-25 21:58:03,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:58:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:58:03,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:58:03,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264543810] [2020-10-25 21:58:03,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:58:03,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 21:58:03,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962178528] [2020-10-25 21:58:03,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:58:03,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 21:58:03,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:58:03,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:58:03,251 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-10-25 21:58:03,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:58:03,275 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2020-10-25 21:58:03,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:58:03,277 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-25 21:58:03,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:58:03,288 INFO L225 Difference]: With dead ends: 73 [2020-10-25 21:58:03,288 INFO L226 Difference]: Without dead ends: 34 [2020-10-25 21:58:03,292 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:58:03,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-25 21:58:03,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-25 21:58:03,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-25 21:58:03,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2020-10-25 21:58:03,335 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2020-10-25 21:58:03,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:58:03,336 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2020-10-25 21:58:03,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:58:03,336 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2020-10-25 21:58:03,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-25 21:58:03,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:58:03,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:58:03,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 21:58:03,338 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:58:03,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:58:03,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2020-10-25 21:58:03,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:58:03,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485403844] [2020-10-25 21:58:03,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:58:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:58:03,416 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:58:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:58:03,500 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:58:03,557 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 21:58:03,557 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 21:58:03,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 21:58:03,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:58:03 BoogieIcfgContainer [2020-10-25 21:58:03,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:58:03,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:58:03,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:58:03,643 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:58:03,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:58:02" (3/4) ... [2020-10-25 21:58:03,648 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-25 21:58:03,648 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:58:03,655 INFO L168 Benchmark]: Toolchain (without parser) took 2162.78 ms. Allocated memory was 39.8 MB in the beginning and 58.7 MB in the end (delta: 18.9 MB). Free memory was 15.4 MB in the beginning and 24.6 MB in the end (delta: -9.2 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:03,656 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 39.8 MB. Free memory was 25.4 MB in the beginning and 25.4 MB in the end (delta: 23.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:58:03,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.01 ms. Allocated memory is still 48.2 MB. Free memory was 32.2 MB in the beginning and 20.6 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:03,660 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.99 ms. Allocated memory is still 48.2 MB. Free memory was 20.4 MB in the beginning and 30.6 MB in the end (delta: -10.2 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:03,661 INFO L168 Benchmark]: Boogie Preprocessor took 75.05 ms. Allocated memory is still 48.2 MB. Free memory was 30.6 MB in the beginning and 28.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:03,663 INFO L168 Benchmark]: RCFGBuilder took 799.59 ms. Allocated memory is still 48.2 MB. Free memory was 28.6 MB in the beginning and 28.6 MB in the end (delta: 60.3 kB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:03,664 INFO L168 Benchmark]: TraceAbstraction took 702.84 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 28.1 MB in the beginning and 25.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:03,667 INFO L168 Benchmark]: Witness Printer took 5.64 ms. Allocated memory is still 58.7 MB. Free memory was 24.9 MB in the beginning and 24.6 MB in the end (delta: 301.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:58:03,682 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 39.8 MB. Free memory was 25.4 MB in the beginning and 25.4 MB in the end (delta: 23.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 440.01 ms. Allocated memory is still 48.2 MB. Free memory was 32.2 MB in the beginning and 20.6 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 97.99 ms. Allocated memory is still 48.2 MB. Free memory was 20.4 MB in the beginning and 30.6 MB in the end (delta: -10.2 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.05 ms. Allocated memory is still 48.2 MB. Free memory was 30.6 MB in the beginning and 28.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 799.59 ms. Allocated memory is still 48.2 MB. Free memory was 28.6 MB in the beginning and 28.6 MB in the end (delta: 60.3 kB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 702.84 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 28.1 MB in the beginning and 25.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. * Witness Printer took 5.64 ms. Allocated memory is still 58.7 MB. Free memory was 24.9 MB in the beginning and 24.6 MB in the end (delta: 301.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of bitwiseAnd at line 48, overapproximation of someBinaryArithmeticFLOAToperation at line 52. Possible FailurePath: [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L118] float x = 0.0f / 0.0f; [L39] float y, hi, lo, c, t; [L40] __int32_t k = 0, xsb, sx; [L41] __uint32_t hx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L44] ieee_float_shape_type gf_u; [L45] gf_u.value = (x) [L46] EXPR gf_u.word [L46] (sx) = gf_u.word [L48] xsb = (sx >> 31) & 1 [L49] hx = sx & 0x7fffffff VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L51] COND TRUE ((hx) > 0x7f800000L) [L52] return x + x; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L119] float res = __ieee754_expf(x); [L15] return x != x; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L122] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0831.c", 3, "reach_error") VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-5485861 [2020-10-25 21:58:06,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:58:06,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:58:06,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:58:06,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:58:06,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:58:06,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:58:06,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:58:06,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:58:06,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:58:06,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:58:06,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:58:06,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:58:06,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:58:06,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:58:06,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:58:06,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:58:06,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:58:06,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:58:06,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:58:06,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:58:06,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:58:06,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:58:06,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:58:06,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:58:06,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:58:06,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:58:06,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:58:06,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:58:06,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:58:06,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:58:06,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:58:06,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:58:06,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:58:06,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:58:06,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:58:06,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:58:06,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:58:06,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:58:06,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:58:06,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:58:06,459 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 21:58:06,499 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:58:06,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:58:06,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:58:06,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:58:06,503 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:58:06,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:58:06,504 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:58:06,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:58:06,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:58:06,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:58:06,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:58:06,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:58:06,506 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 21:58:06,506 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 21:58:06,507 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:58:06,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:58:06,507 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:58:06,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:58:06,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:58:06,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:58:06,508 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:58:06,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:58:06,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:58:06,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:58:06,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:58:06,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:58:06,509 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 21:58:06,509 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 21:58:06,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:58:06,510 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:58:06,510 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 21:58:06,510 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f171dd4f575b92a9302785470b2bac89695cbf3 [2020-10-25 21:58:06,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:58:07,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:58:07,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:58:07,033 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:58:07,035 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:58:07,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-10-25 21:58:07,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d8d48773/037f20851e4940299a43f3edcb3a68e5/FLAGa45afd8b8 [2020-10-25 21:58:07,798 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:58:07,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-10-25 21:58:07,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d8d48773/037f20851e4940299a43f3edcb3a68e5/FLAGa45afd8b8 [2020-10-25 21:58:08,151 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d8d48773/037f20851e4940299a43f3edcb3a68e5 [2020-10-25 21:58:08,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:58:08,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:58:08,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:58:08,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:58:08,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:58:08,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:58:08" (1/1) ... [2020-10-25 21:58:08,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e656d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:08, skipping insertion in model container [2020-10-25 21:58:08,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:58:08" (1/1) ... [2020-10-25 21:58:08,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:58:08,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:58:08,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:58:08,472 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:58:08,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:58:08,543 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:58:08,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:08 WrapperNode [2020-10-25 21:58:08,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:58:08,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:58:08,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:58:08,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:58:08,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:08" (1/1) ... [2020-10-25 21:58:08,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:08" (1/1) ... [2020-10-25 21:58:08,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:58:08,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:58:08,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:58:08,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:58:08,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:08" (1/1) ... [2020-10-25 21:58:08,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:08" (1/1) ... [2020-10-25 21:58:08,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:08" (1/1) ... [2020-10-25 21:58:08,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:08" (1/1) ... [2020-10-25 21:58:08,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:08" (1/1) ... [2020-10-25 21:58:08,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:08" (1/1) ... [2020-10-25 21:58:08,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:08" (1/1) ... [2020-10-25 21:58:08,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:58:08,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:58:08,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:58:08,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:58:08,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:58:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-10-25 21:58:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 21:58:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:58:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-25 21:58:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-25 21:58:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:58:08,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:58:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-25 21:58:08,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-25 21:58:08,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 21:58:18,317 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:58:18,317 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-25 21:58:18,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:58:18 BoogieIcfgContainer [2020-10-25 21:58:18,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:58:18,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:58:18,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:58:18,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:58:18,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:58:08" (1/3) ... [2020-10-25 21:58:18,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61aeffc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:58:18, skipping insertion in model container [2020-10-25 21:58:18,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:58:08" (2/3) ... [2020-10-25 21:58:18,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61aeffc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:58:18, skipping insertion in model container [2020-10-25 21:58:18,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:58:18" (3/3) ... [2020-10-25 21:58:18,330 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2020-10-25 21:58:18,344 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:58:18,350 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:58:18,370 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:58:18,418 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:58:18,419 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:58:18,419 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:58:18,419 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:58:18,419 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:58:18,420 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:58:18,420 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:58:18,420 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:58:18,449 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-25 21:58:18,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-25 21:58:18,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:58:18,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:58:18,462 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:58:18,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:58:18,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2020-10-25 21:58:18,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:58:18,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [28078484] [2020-10-25 21:58:18,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-25 21:58:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:58:19,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-25 21:58:19,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:58:19,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:58:19,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:58:19,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:58:19,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [28078484] [2020-10-25 21:58:19,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:58:19,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-25 21:58:19,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521661945] [2020-10-25 21:58:19,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 21:58:19,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:58:19,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 21:58:19,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:58:19,267 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-10-25 21:58:19,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:58:19,290 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2020-10-25 21:58:19,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 21:58:19,292 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-25 21:58:19,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:58:19,304 INFO L225 Difference]: With dead ends: 73 [2020-10-25 21:58:19,304 INFO L226 Difference]: Without dead ends: 34 [2020-10-25 21:58:19,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 21:58:19,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-25 21:58:19,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-25 21:58:19,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-25 21:58:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2020-10-25 21:58:19,351 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2020-10-25 21:58:19,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:58:19,352 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2020-10-25 21:58:19,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 21:58:19,352 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2020-10-25 21:58:19,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-25 21:58:19,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:58:19,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:58:19,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 21:58:19,570 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:58:19,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:58:19,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2020-10-25 21:58:19,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:58:19,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [875638639] [2020-10-25 21:58:19,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-25 21:58:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:58:20,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-25 21:58:20,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:58:20,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:58:20,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:58:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:58:20,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [875638639] [2020-10-25 21:58:20,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:58:20,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-25 21:58:20,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396131701] [2020-10-25 21:58:20,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-25 21:58:20,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:58:20,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-25 21:58:20,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-25 21:58:20,611 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand 10 states. [2020-10-25 21:58:42,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:58:42,234 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2020-10-25 21:58:42,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 21:58:42,235 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2020-10-25 21:58:42,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:58:42,238 INFO L225 Difference]: With dead ends: 48 [2020-10-25 21:58:42,238 INFO L226 Difference]: Without dead ends: 40 [2020-10-25 21:58:42,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-25 21:58:42,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-25 21:58:42,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 34. [2020-10-25 21:58:42,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-25 21:58:42,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2020-10-25 21:58:42,247 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 10 [2020-10-25 21:58:42,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:58:42,247 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2020-10-25 21:58:42,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-25 21:58:42,248 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2020-10-25 21:58:42,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-25 21:58:42,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:58:42,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 21:58:42,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-25 21:58:42,450 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:58:42,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:58:42,451 INFO L82 PathProgramCache]: Analyzing trace with hash 228797714, now seen corresponding path program 1 times [2020-10-25 21:58:42,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:58:42,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795776964] [2020-10-25 21:58:42,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-25 21:58:42,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:58:42,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-25 21:58:42,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:58:43,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:58:43,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:58:43,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:58:43,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795776964] [2020-10-25 21:58:43,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:58:43,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 7] imperfect sequences [] total 10 [2020-10-25 21:58:43,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963646902] [2020-10-25 21:58:43,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-25 21:58:43,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:58:43,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-25 21:58:43,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-25 21:58:43,366 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 10 states. [2020-10-25 21:58:43,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:58:43,552 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2020-10-25 21:58:43,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 21:58:43,553 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2020-10-25 21:58:43,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:58:43,556 INFO L225 Difference]: With dead ends: 34 [2020-10-25 21:58:43,556 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 21:58:43,557 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 [2020-10-25 21:58:43,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 21:58:43,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 21:58:43,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 21:58:43,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 21:58:43,558 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-25 21:58:43,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:58:43,559 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 21:58:43,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-25 21:58:43,559 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 21:58:43,559 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 21:58:43,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-25 21:58:43,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 21:58:43,921 INFO L274 CegarLoopResult]: For program point L60(lines 60 75) no Hoare annotation was computed. [2020-10-25 21:58:43,921 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 21:58:43,921 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-25 21:58:43,921 INFO L277 CegarLoopResult]: At program point L127(lines 113 128) the Hoare annotation is: true [2020-10-25 21:58:43,921 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 21:58:43,922 INFO L274 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2020-10-25 21:58:43,922 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 21:58:43,922 INFO L274 CegarLoopResult]: For program point L61-2(lines 61 70) no Hoare annotation was computed. [2020-10-25 21:58:43,922 INFO L274 CegarLoopResult]: For program point L53(lines 53 54) no Hoare annotation was computed. [2020-10-25 21:58:43,922 INFO L274 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2020-10-25 21:58:43,922 INFO L270 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: false [2020-10-25 21:58:43,922 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-25 21:58:43,922 INFO L274 CegarLoopResult]: For program point L54-2(line 54) no Hoare annotation was computed. [2020-10-25 21:58:43,923 INFO L274 CegarLoopResult]: For program point L104(lines 104 108) no Hoare annotation was computed. [2020-10-25 21:58:43,923 INFO L274 CegarLoopResult]: For program point L104-1(lines 97 110) no Hoare annotation was computed. [2020-10-25 21:58:43,923 INFO L274 CegarLoopResult]: For program point L104-2(lines 104 108) no Hoare annotation was computed. [2020-10-25 21:58:43,923 INFO L274 CegarLoopResult]: For program point L55(lines 55 56) no Hoare annotation was computed. [2020-10-25 21:58:43,924 INFO L274 CegarLoopResult]: For program point L80(lines 80 83) no Hoare annotation was computed. [2020-10-25 21:58:43,924 INFO L274 CegarLoopResult]: For program point L72(lines 72 75) no Hoare annotation was computed. [2020-10-25 21:58:43,924 INFO L274 CegarLoopResult]: For program point L72-2(lines 60 75) no Hoare annotation was computed. [2020-10-25 21:58:43,924 INFO L274 CegarLoopResult]: For program point L122(lines 122 125) no Hoare annotation was computed. [2020-10-25 21:58:43,925 INFO L270 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_expf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_expf_~x) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) [2020-10-25 21:58:43,925 INFO L274 CegarLoopResult]: For program point L73(lines 73 74) no Hoare annotation was computed. [2020-10-25 21:58:43,925 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 21:58:43,926 INFO L274 CegarLoopResult]: For program point L57(lines 57 58) no Hoare annotation was computed. [2020-10-25 21:58:43,927 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:58:43,927 INFO L274 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-10-25 21:58:43,927 INFO L270 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-10-25 21:58:43,927 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 21:58:43,928 INFO L274 CegarLoopResult]: For program point L91(lines 91 95) no Hoare annotation was computed. [2020-10-25 21:58:43,928 INFO L274 CegarLoopResult]: For program point L91-1(lines 84 97) no Hoare annotation was computed. [2020-10-25 21:58:43,928 INFO L274 CegarLoopResult]: For program point L91-2(lines 91 95) no Hoare annotation was computed. [2020-10-25 21:58:43,928 INFO L274 CegarLoopResult]: For program point L84(lines 84 110) no Hoare annotation was computed. [2020-10-25 21:58:43,928 INFO L274 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2020-10-25 21:58:43,929 INFO L270 CegarLoopResult]: At program point L109(lines 38 111) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_expf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_expf_~x)) [2020-10-25 21:58:43,929 INFO L274 CegarLoopResult]: For program point L43-1(lines 43 47) no Hoare annotation was computed. [2020-10-25 21:58:43,933 INFO L270 CegarLoopResult]: At program point L43-2(lines 43 47) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_expf_~x))) [2020-10-25 21:58:43,934 INFO L274 CegarLoopResult]: For program point L43-3(lines 43 47) no Hoare annotation was computed. [2020-10-25 21:58:43,948 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,949 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,949 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,950 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,953 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:58:43,953 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:58:43,959 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,960 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,960 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,960 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,961 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:58:43,961 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:58:43,963 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,963 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,963 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,963 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,964 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:58:43,964 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:58:43,964 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,965 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,965 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,965 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,967 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:58:43,967 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:58:43,968 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,968 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:58:43,969 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:58:43,969 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:43,969 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:58:43,970 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:58:43,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:58:43 BoogieIcfgContainer [2020-10-25 21:58:43,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:58:43,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:58:43,974 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:58:43,974 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:58:43,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:58:18" (3/4) ... [2020-10-25 21:58:43,980 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 21:58:43,999 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-10-25 21:58:44,000 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 21:58:44,001 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:58:44,003 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:58:44,041 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2020-10-25 21:58:44,042 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-10-25 21:58:44,043 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && 1bv32 == \result [2020-10-25 21:58:44,130 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 21:58:44,131 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:58:44,133 INFO L168 Benchmark]: Toolchain (without parser) took 35973.35 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 29.2 MB in the beginning and 31.0 MB in the end (delta: -1.8 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:44,134 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 41.9 MB. Free memory was 21.6 MB in the beginning and 21.6 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:58:44,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.90 ms. Allocated memory is still 52.4 MB. Free memory was 28.6 MB in the beginning and 27.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:44,136 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.12 ms. Allocated memory is still 52.4 MB. Free memory was 27.1 MB in the beginning and 25.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:44,136 INFO L168 Benchmark]: Boogie Preprocessor took 85.26 ms. Allocated memory is still 52.4 MB. Free memory was 25.0 MB in the beginning and 35.8 MB in the end (delta: -10.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:44,137 INFO L168 Benchmark]: RCFGBuilder took 9627.89 ms. Allocated memory is still 52.4 MB. Free memory was 35.8 MB in the beginning and 22.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:44,138 INFO L168 Benchmark]: TraceAbstraction took 25651.54 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 21.8 MB in the beginning and 37.7 MB in the end (delta: -15.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:44,138 INFO L168 Benchmark]: Witness Printer took 157.18 ms. Allocated memory is still 62.9 MB. Free memory was 37.7 MB in the beginning and 31.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-25 21:58:44,141 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 41.9 MB. Free memory was 21.6 MB in the beginning and 21.6 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 376.90 ms. Allocated memory is still 52.4 MB. Free memory was 28.6 MB in the beginning and 27.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.12 ms. Allocated memory is still 52.4 MB. Free memory was 27.1 MB in the beginning and 25.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.26 ms. Allocated memory is still 52.4 MB. Free memory was 25.0 MB in the beginning and 35.8 MB in the end (delta: -10.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 9627.89 ms. Allocated memory is still 52.4 MB. Free memory was 35.8 MB in the beginning and 22.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 25651.54 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 21.8 MB in the beginning and 37.7 MB in the end (delta: -15.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Witness Printer took 157.18 ms. Allocated memory is still 62.9 MB. Free memory was 37.7 MB in the beginning and 31.0 MB in the end (delta: 6.7 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 [2020-10-25 21:58:44,155 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,155 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,156 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,156 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:58:44,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:58:44,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,164 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,165 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,166 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,166 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:58:44,166 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && 1bv32 == \result - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant [2020-10-25 21:58:44,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,170 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:58:44,170 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:58:44,170 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,170 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,171 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:58:44,171 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 43]: Loop Invariant [2020-10-25 21:58:44,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:58:44,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 21:58:44,179 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 21:58:44,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-10-25 21:58:44,181 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: 25.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 21.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 79 SDtfs, 36 SDslu, 195 SDs, 0 SdLazy, 98 SolverSat, 2 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 21.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 61 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 56 ConstructedInterpolants, 5 QuantifiedInterpolants, 3107 SizeOfPredicates, 15 NumberOfNonLiveVariables, 235 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...