./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0834.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0834.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 78ea4619176830aa2eaba3eb142f65766ef4226b .......................................................................................................................................................................................................................................................................................................................................... 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/double_req_bl_0834.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 78ea4619176830aa2eaba3eb142f65766ef4226b ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:12:01,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:12:01,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:12:01,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:12:01,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:12:01,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:12:01,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:12:01,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:12:01,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:12:01,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:12:01,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:12:01,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:12:01,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:12:01,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:12:01,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:12:01,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:12:01,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:12:01,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:12:01,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:12:01,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:12:01,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:12:01,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:12:01,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:12:01,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:12:01,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:12:01,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:12:01,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:12:01,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:12:01,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:12:01,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:12:01,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:12:01,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:12:01,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:12:01,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:12:01,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:12:01,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:12:01,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:12:01,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:12:01,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:12:01,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:12:01,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:12:01,805 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:12:01,860 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:12:01,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:12:01,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:12:01,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:12:01,864 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:12:01,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:12:01,864 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:12:01,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:12:01,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:12:01,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:12:01,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:12:01,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:12:01,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:12:01,866 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:12:01,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:12:01,867 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:12:01,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:12:01,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:12:01,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:12:01,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:12:01,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:12:01,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:12:01,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:12:01,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:12:01,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:12:01,869 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:12:01,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:12:01,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:12:01,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:12:01,869 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78ea4619176830aa2eaba3eb142f65766ef4226b [2020-10-24 23:12:02,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:12:02,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:12:02,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:12:02,355 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:12:02,356 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:12:02,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2020-10-24 23:12:02,439 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/584bbcedc/7f78e50d83454b868974a0c3af086593/FLAGe8188c7f4 [2020-10-24 23:12:03,116 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:12:03,117 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2020-10-24 23:12:03,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/584bbcedc/7f78e50d83454b868974a0c3af086593/FLAGe8188c7f4 [2020-10-24 23:12:03,399 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/584bbcedc/7f78e50d83454b868974a0c3af086593 [2020-10-24 23:12:03,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:12:03,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:12:03,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:12:03,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:12:03,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:12:03,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:12:03" (1/1) ... [2020-10-24 23:12:03,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@952b1f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:03, skipping insertion in model container [2020-10-24 23:12:03,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:12:03" (1/1) ... [2020-10-24 23:12:03,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:12:03,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:12:03,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:12:03,707 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:12:03,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:12:03,777 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:12:03,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:03 WrapperNode [2020-10-24 23:12:03,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:12:03,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:12:03,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:12:03,779 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:12:03,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:03" (1/1) ... [2020-10-24 23:12:03,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:03" (1/1) ... [2020-10-24 23:12:03,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:12:03,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:12:03,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:12:03,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:12:03,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:03" (1/1) ... [2020-10-24 23:12:03,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:03" (1/1) ... [2020-10-24 23:12:03,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:03" (1/1) ... [2020-10-24 23:12:03,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:03" (1/1) ... [2020-10-24 23:12:03,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:03" (1/1) ... [2020-10-24 23:12:03,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:03" (1/1) ... [2020-10-24 23:12:03,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:03" (1/1) ... [2020-10-24 23:12:03,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:12:03,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:12:03,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:12:03,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:12:03,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:12:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:12:04,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:12:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:12:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:12:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:12:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:12:04,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:12:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:12:04,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-24 23:12:04,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:12:04,825 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:12:04,826 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-24 23:12:04,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:12:04 BoogieIcfgContainer [2020-10-24 23:12:04,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:12:04,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:12:04,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:12:04,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:12:04,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:12:03" (1/3) ... [2020-10-24 23:12:04,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a159e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:12:04, skipping insertion in model container [2020-10-24 23:12:04,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:03" (2/3) ... [2020-10-24 23:12:04,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a159e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:12:04, skipping insertion in model container [2020-10-24 23:12:04,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:12:04" (3/3) ... [2020-10-24 23:12:04,840 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0834.c [2020-10-24 23:12:04,859 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:12:04,865 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:12:04,882 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:12:04,921 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:12:04,921 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:12:04,921 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:12:04,921 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:12:04,922 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:12:04,922 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:12:04,922 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:12:04,922 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:12:04,937 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-24 23:12:04,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 23:12:04,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:12:04,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:12:04,945 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:12:04,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:12:04,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1546239330, now seen corresponding path program 1 times [2020-10-24 23:12:04,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:12:04,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198643812] [2020-10-24 23:12:04,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:12:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:12:05,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:12:05,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198643812] [2020-10-24 23:12:05,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:12:05,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:12:05,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13161001] [2020-10-24 23:12:05,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:12:05,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:12:05,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:12:05,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:12:05,173 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2020-10-24 23:12:05,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:12:05,207 INFO L93 Difference]: Finished difference Result 85 states and 137 transitions. [2020-10-24 23:12:05,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:12:05,208 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-10-24 23:12:05,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:12:05,219 INFO L225 Difference]: With dead ends: 85 [2020-10-24 23:12:05,219 INFO L226 Difference]: Without dead ends: 40 [2020-10-24 23:12:05,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:12:05,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-24 23:12:05,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-24 23:12:05,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-24 23:12:05,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2020-10-24 23:12:05,264 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 13 [2020-10-24 23:12:05,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:12:05,264 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-10-24 23:12:05,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:12:05,265 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-10-24 23:12:05,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 23:12:05,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:12:05,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:12:05,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:12:05,267 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:12:05,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:12:05,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1188959094, now seen corresponding path program 1 times [2020-10-24 23:12:05,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:12:05,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787190944] [2020-10-24 23:12:05,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:12:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:12:05,478 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:12:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:12:05,620 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:12:05,701 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:12:05,701 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:12:05,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:12:05,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:12:05 BoogieIcfgContainer [2020-10-24 23:12:05,787 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:12:05,787 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:12:05,788 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:12:05,788 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:12:05,789 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:12:04" (3/4) ... [2020-10-24 23:12:05,793 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:12:05,793 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:12:05,796 INFO L168 Benchmark]: Toolchain (without parser) took 2390.62 ms. Allocated memory was 41.9 MB in the beginning and 62.9 MB in the end (delta: 21.0 MB). Free memory was 18.5 MB in the beginning and 36.6 MB in the end (delta: -18.0 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:12:05,798 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 41.9 MB. Free memory was 19.9 MB in the beginning and 19.9 MB in the end (delta: 52.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:12:05,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.67 ms. Allocated memory is still 52.4 MB. Free memory was 37.7 MB in the beginning and 25.3 MB in the end (delta: 12.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:12:05,801 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.38 ms. Allocated memory is still 52.4 MB. Free memory was 25.3 MB in the beginning and 36.5 MB in the end (delta: -11.1 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:12:05,802 INFO L168 Benchmark]: Boogie Preprocessor took 72.06 ms. Allocated memory is still 52.4 MB. Free memory was 36.5 MB in the beginning and 34.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:12:05,803 INFO L168 Benchmark]: RCFGBuilder took 904.88 ms. Allocated memory is still 52.4 MB. Free memory was 34.4 MB in the beginning and 33.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:12:05,804 INFO L168 Benchmark]: TraceAbstraction took 955.83 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 32.5 MB in the beginning and 37.0 MB in the end (delta: -4.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:12:05,805 INFO L168 Benchmark]: Witness Printer took 6.14 ms. Allocated memory is still 62.9 MB. Free memory was 37.0 MB in the beginning and 36.6 MB in the end (delta: 396.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:12:05,810 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 41.9 MB. Free memory was 19.9 MB in the beginning and 19.9 MB in the end (delta: 52.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 353.67 ms. Allocated memory is still 52.4 MB. Free memory was 37.7 MB in the beginning and 25.3 MB in the end (delta: 12.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.38 ms. Allocated memory is still 52.4 MB. Free memory was 25.3 MB in the beginning and 36.5 MB in the end (delta: -11.1 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.06 ms. Allocated memory is still 52.4 MB. Free memory was 36.5 MB in the beginning and 34.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 904.88 ms. Allocated memory is still 52.4 MB. Free memory was 34.4 MB in the beginning and 33.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 955.83 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 32.5 MB in the beginning and 37.0 MB in the end (delta: -4.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * Witness Printer took 6.14 ms. Allocated memory is still 62.9 MB. Free memory was 37.0 MB in the beginning and 36.6 MB in the end (delta: 396.6 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 bitwiseOr at line 143, overapproximation of someUnaryDOUBLEoperation at line 23, overapproximation of someBinaryArithmeticDOUBLEoperation at line 73, overapproximation of bitwiseAnd at line 142, overapproximation of someBinaryDOUBLEComparisonOperation at line 72. Possible FailurePath: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L155] double x = 1.0 / 0.0; [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L59] COND TRUE hx >= 0x40862E42 VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L60] COND FALSE !(hx >= 0x7ff00000) VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L72] COND TRUE x > o_threshold_exp [L73] return huge_exp * huge_exp; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L156] double res = __ieee754_exp(x); [L135] __int32_t hx, lx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L137] ieee_double_shape_type ew_u; [L138] ew_u.value = (x) [L139] EXPR ew_u.parts.msw [L139] (hx) = ew_u.parts.msw [L140] EXPR ew_u.parts.lsw [L140] (lx) = ew_u.parts.lsw [L142] hx &= 0x7fffffff [L143] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L144] hx = 0x7ff00000 - hx [L145] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L159] COND TRUE !isinf_double(x) [L3] __assert_fail("0", "double_req_bl_0834.c", 3, "reach_error") VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 54 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=44occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:12:08,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:12:08,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:12:08,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:12:08,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:12:08,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:12:08,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:12:08,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:12:08,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:12:08,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:12:08,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:12:08,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:12:08,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:12:08,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:12:08,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:12:08,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:12:08,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:12:08,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:12:08,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:12:08,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:12:08,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:12:08,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:12:08,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:12:08,674 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:12:08,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:12:08,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:12:08,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:12:08,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:12:08,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:12:08,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:12:08,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:12:08,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:12:08,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:12:08,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:12:08,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:12:08,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:12:08,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:12:08,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:12:08,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:12:08,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:12:08,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:12:08,708 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:12:08,767 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:12:08,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:12:08,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:12:08,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:12:08,773 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:12:08,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:12:08,774 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:12:08,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:12:08,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:12:08,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:12:08,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:12:08,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:12:08,777 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:12:08,777 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:12:08,777 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:12:08,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:12:08,778 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:12:08,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:12:08,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:12:08,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:12:08,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:12:08,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:12:08,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:12:08,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:12:08,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:12:08,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:12:08,781 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:12:08,781 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:12:08,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:12:08,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:12:08,782 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:12:08,782 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78ea4619176830aa2eaba3eb142f65766ef4226b [2020-10-24 23:12:09,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:12:09,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:12:09,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:12:09,288 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:12:09,289 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:12:09,290 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2020-10-24 23:12:09,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58c65cd69/0645ce163a1f4959b740cbb8f46152b2/FLAG366748793 [2020-10-24 23:12:09,975 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:12:09,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2020-10-24 23:12:09,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58c65cd69/0645ce163a1f4959b740cbb8f46152b2/FLAG366748793 [2020-10-24 23:12:10,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58c65cd69/0645ce163a1f4959b740cbb8f46152b2 [2020-10-24 23:12:10,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:12:10,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:12:10,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:12:10,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:12:10,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:12:10,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:12:10" (1/1) ... [2020-10-24 23:12:10,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c1492f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:10, skipping insertion in model container [2020-10-24 23:12:10,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:12:10" (1/1) ... [2020-10-24 23:12:10,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:12:10,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:12:10,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:12:10,594 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:12:10,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:12:10,680 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:12:10,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:10 WrapperNode [2020-10-24 23:12:10,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:12:10,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:12:10,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:12:10,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:12:10,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:10" (1/1) ... [2020-10-24 23:12:10,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:10" (1/1) ... [2020-10-24 23:12:10,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:12:10,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:12:10,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:12:10,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:12:10,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:10" (1/1) ... [2020-10-24 23:12:10,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:10" (1/1) ... [2020-10-24 23:12:10,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:10" (1/1) ... [2020-10-24 23:12:10,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:10" (1/1) ... [2020-10-24 23:12:10,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:10" (1/1) ... [2020-10-24 23:12:10,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:10" (1/1) ... [2020-10-24 23:12:10,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:10" (1/1) ... [2020-10-24 23:12:10,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:12:10,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:12:10,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:12:10,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:12:10,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:12:10,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-24 23:12:10,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-24 23:12:10,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:12:10,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:12:10,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-10-24 23:12:10,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:12:10,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:12:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:12:10,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:12:10,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:12:24,145 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:12:24,146 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-24 23:12:24,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:12:24 BoogieIcfgContainer [2020-10-24 23:12:24,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:12:24,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:12:24,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:12:24,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:12:24,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:12:10" (1/3) ... [2020-10-24 23:12:24,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6005c75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:12:24, skipping insertion in model container [2020-10-24 23:12:24,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:12:10" (2/3) ... [2020-10-24 23:12:24,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6005c75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:12:24, skipping insertion in model container [2020-10-24 23:12:24,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:12:24" (3/3) ... [2020-10-24 23:12:24,159 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0834.c [2020-10-24 23:12:24,172 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:12:24,177 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:12:24,191 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:12:24,221 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:12:24,222 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:12:24,222 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:12:24,222 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:12:24,222 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:12:24,222 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:12:24,223 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:12:24,223 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:12:24,239 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-24 23:12:24,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 23:12:24,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:12:24,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:12:24,247 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:12:24,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:12:24,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1546239330, now seen corresponding path program 1 times [2020-10-24 23:12:24,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:12:24,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527825764] [2020-10-24 23:12:24,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 23:12:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:12:24,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:12:24,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:12:24,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:12:24,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:12:24,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:12:24,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527825764] [2020-10-24 23:12:24,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:12:24,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:12:24,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878873073] [2020-10-24 23:12:24,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:12:24,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:12:24,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:12:24,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:12:24,842 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2020-10-24 23:12:24,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:12:24,865 INFO L93 Difference]: Finished difference Result 85 states and 137 transitions. [2020-10-24 23:12:24,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:12:24,867 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-10-24 23:12:24,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:12:24,884 INFO L225 Difference]: With dead ends: 85 [2020-10-24 23:12:24,884 INFO L226 Difference]: Without dead ends: 40 [2020-10-24 23:12:24,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:12:24,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-24 23:12:24,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-24 23:12:24,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-24 23:12:24,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2020-10-24 23:12:24,928 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 13 [2020-10-24 23:12:24,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:12:24,928 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-10-24 23:12:24,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:12:24,929 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-10-24 23:12:24,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 23:12:24,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:12:24,930 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:12:25,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:12:25,144 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:12:25,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:12:25,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1188959094, now seen corresponding path program 1 times [2020-10-24 23:12:25,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:12:25,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971673000] [2020-10-24 23:12:25,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-24 23:12:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:12:25,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 23:12:25,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:12:25,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:12:25,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:12:25,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:12:25,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971673000] [2020-10-24 23:12:25,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:12:25,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2020-10-24 23:12:25,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328601614] [2020-10-24 23:12:25,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 23:12:25,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:12:25,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 23:12:25,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-24 23:12:25,993 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 7 states. [2020-10-24 23:12:26,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:12:26,250 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2020-10-24 23:12:26,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 23:12:26,252 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-24 23:12:26,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:12:26,253 INFO L225 Difference]: With dead ends: 48 [2020-10-24 23:12:26,253 INFO L226 Difference]: Without dead ends: 20 [2020-10-24 23:12:26,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:12:26,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-24 23:12:26,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-24 23:12:26,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-24 23:12:26,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-10-24 23:12:26,260 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 15 [2020-10-24 23:12:26,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:12:26,260 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-10-24 23:12:26,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 23:12:26,261 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-10-24 23:12:26,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-24 23:12:26,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:12:26,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:12:26,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:12:26,470 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:12:26,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:12:26,471 INFO L82 PathProgramCache]: Analyzing trace with hash 968811170, now seen corresponding path program 1 times [2020-10-24 23:12:26,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:12:26,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123517118] [2020-10-24 23:12:26,473 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 [2020-10-24 23:12:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:12:27,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-24 23:12:27,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:12:27,265 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-10-24 23:12:27,280 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-24 23:12:27,293 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:12:27,294 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-24 23:12:27,326 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:12:27,329 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-10-24 23:12:27,330 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:49, output treesize:38 [2020-10-24 23:12:27,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:12:27,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:12:27,504 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2020-10-24 23:12:27,511 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-24 23:12:27,516 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:12:27,517 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-24 23:12:27,532 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-24 23:12:27,534 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-24 23:12:27,534 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2020-10-24 23:12:27,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:12:27,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123517118] [2020-10-24 23:12:27,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:12:27,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 23:12:27,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815390688] [2020-10-24 23:12:27,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 23:12:27,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:12:27,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 23:12:27,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:12:27,718 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2020-10-24 23:12:27,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:12:27,955 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-10-24 23:12:27,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 23:12:27,958 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-10-24 23:12:27,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:12:27,959 INFO L225 Difference]: With dead ends: 28 [2020-10-24 23:12:27,960 INFO L226 Difference]: Without dead ends: 20 [2020-10-24 23:12:27,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-24 23:12:27,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-24 23:12:27,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-24 23:12:27,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-24 23:12:27,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-10-24 23:12:27,972 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2020-10-24 23:12:27,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:12:27,973 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-10-24 23:12:27,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 23:12:27,973 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-10-24 23:12:27,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-24 23:12:27,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:12:27,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:12:28,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:12:28,190 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:12:28,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:12:28,193 INFO L82 PathProgramCache]: Analyzing trace with hash -2079354756, now seen corresponding path program 1 times [2020-10-24 23:12:28,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:12:28,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848563846] [2020-10-24 23:12:28,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-24 23:12:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:12:28,775 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:12:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:12:29,264 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:12:29,406 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-24 23:12:29,406 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:12:29,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 23:12:29,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:12:29 BoogieIcfgContainer [2020-10-24 23:12:29,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:12:29,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:12:29,754 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:12:29,754 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:12:29,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:12:24" (3/4) ... [2020-10-24 23:12:29,763 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-24 23:12:29,855 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:12:29,855 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:12:29,857 INFO L168 Benchmark]: Toolchain (without parser) took 19571.85 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.5 MB in the beginning and 22.0 MB in the end (delta: -502.8 kB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:12:29,858 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 35.7 MB. Free memory was 18.2 MB in the beginning and 18.1 MB in the end (delta: 31.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:12:29,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.66 ms. Allocated memory is still 44.0 MB. Free memory was 29.7 MB in the beginning and 25.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:12:29,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.75 ms. Allocated memory is still 44.0 MB. Free memory was 25.7 MB in the beginning and 23.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:12:29,860 INFO L168 Benchmark]: Boogie Preprocessor took 52.05 ms. Allocated memory is still 44.0 MB. Free memory was 23.5 MB in the beginning and 21.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:12:29,861 INFO L168 Benchmark]: RCFGBuilder took 13355.36 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.1 MB in the beginning and 36.3 MB in the end (delta: -15.2 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:12:29,862 INFO L168 Benchmark]: TraceAbstraction took 5599.47 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 28.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:12:29,863 INFO L168 Benchmark]: Witness Printer took 102.15 ms. Allocated memory is still 54.5 MB. Free memory was 27.9 MB in the beginning and 22.0 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:12:29,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 35.7 MB. Free memory was 18.2 MB in the beginning and 18.1 MB in the end (delta: 31.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 379.66 ms. Allocated memory is still 44.0 MB. Free memory was 29.7 MB in the beginning and 25.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.75 ms. Allocated memory is still 44.0 MB. Free memory was 25.7 MB in the beginning and 23.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.05 ms. Allocated memory is still 44.0 MB. Free memory was 23.5 MB in the beginning and 21.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 13355.36 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.1 MB in the beginning and 36.3 MB in the end (delta: -15.2 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5599.47 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 28.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. * Witness Printer took 102.15 ms. Allocated memory is still 54.5 MB. Free memory was 27.9 MB in the beginning and 22.0 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L155] double x = 1.0 / 0.0; [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L59] COND TRUE hx >= 0x40862E42 VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L60] COND TRUE hx >= 0x7ff00000 [L61] __uint32_t lx; VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L63] ieee_double_shape_type gl_u; [L64] gl_u.value = (x) [L65] EXPR gl_u.parts.lsw [L65] (lx) = gl_u.parts.lsw [L67] COND FALSE !(((hx & 0xfffff) | lx) != 0) VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L70] EXPR (xsb == 0) ? x : 0.0 VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L70] return (xsb == 0) ? x : 0.0; [L156] double res = __ieee754_exp(x); [L135] __int32_t hx, lx; VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L137] ieee_double_shape_type ew_u; [L138] ew_u.value = (x) [L139] EXPR ew_u.parts.msw [L139] (hx) = ew_u.parts.msw [L140] EXPR ew_u.parts.lsw [L140] (lx) = ew_u.parts.lsw [L142] hx &= 0x7fffffff [L143] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L144] hx = 0x7ff00000 - hx [L145] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L159] COND TRUE !isinf_double(x) [L3] __assert_fail("0", "double_req_bl_0834.c", 3, "reach_error") VAL [halF_exp={-2147483646:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={538968073:0}, ln2LO_exp={9:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 139 SDslu, 8 SDs, 0 SdLazy, 27 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 70 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 20 QuantifiedInterpolants, 8230 SizeOfPredicates, 16 NumberOfNonLiveVariables, 306 ConjunctsInSsa, 20 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 incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...