./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092d.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f 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 ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092d.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 f610a17a072f47d6ea9cfa05b6dbea512bdb1b51 .................................................................................................................................................................................................................................................................................................................. 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 ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092d.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 f610a17a072f47d6ea9cfa05b6dbea512bdb1b51 ................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-2880296 [2020-12-02 15:33:08,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:33:08,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:33:08,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:33:08,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:33:08,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:33:08,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:33:08,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:33:08,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:33:08,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:33:08,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:33:08,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:33:08,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:33:08,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:33:08,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:33:08,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:33:08,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:33:08,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:33:08,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:33:08,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:33:08,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:33:08,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:33:08,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:33:08,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:33:08,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:33:08,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:33:08,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:33:08,807 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:33:08,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:33:08,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:33:08,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:33:08,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:33:08,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:33:08,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:33:08,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:33:08,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:33:08,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:33:08,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:33:08,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:33:08,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:33:08,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:33:08,825 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 15:33:08,853 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:33:08,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:33:08,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:33:08,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:33:08,856 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:33:08,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:33:08,856 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:33:08,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 15:33:08,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:33:08,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:33:08,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:33:08,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:33:08,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:33:08,858 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:33:08,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:33:08,858 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:33:08,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:33:08,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:33:08,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:33:08,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:33:08,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:33:08,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:33:08,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:33:08,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:33:08,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:33:08,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 15:33:08,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 15:33:08,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:33:08,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:33:08,861 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f610a17a072f47d6ea9cfa05b6dbea512bdb1b51 [2020-12-02 15:33:09,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:33:09,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:33:09,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:33:09,317 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:33:09,320 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:33:09,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092d.c [2020-12-02 15:33:09,404 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a1645e68/3c3a4ec9e9604968bb732326338bceb0/FLAG7b29d2290 [2020-12-02 15:33:10,055 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:33:10,058 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092d.c [2020-12-02 15:33:10,066 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a1645e68/3c3a4ec9e9604968bb732326338bceb0/FLAG7b29d2290 [2020-12-02 15:33:10,420 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a1645e68/3c3a4ec9e9604968bb732326338bceb0 [2020-12-02 15:33:10,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:33:10,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:33:10,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:33:10,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:33:10,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:33:10,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:33:10" (1/1) ... [2020-12-02 15:33:10,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bece3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:10, skipping insertion in model container [2020-12-02 15:33:10,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:33:10" (1/1) ... [2020-12-02 15:33:10,455 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:33:10,491 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:33:10,678 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092d.c[2417,2430] [2020-12-02 15:33:10,682 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:33:10,699 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:33:10,781 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092d.c[2417,2430] [2020-12-02 15:33:10,785 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:33:10,809 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:33:10,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:10 WrapperNode [2020-12-02 15:33:10,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:33:10,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:33:10,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:33:10,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:33:10,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:10" (1/1) ... [2020-12-02 15:33:10,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:10" (1/1) ... [2020-12-02 15:33:10,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:33:10,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:33:10,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:33:10,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:33:10,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:10" (1/1) ... [2020-12-02 15:33:10,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:10" (1/1) ... [2020-12-02 15:33:10,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:10" (1/1) ... [2020-12-02 15:33:10,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:10" (1/1) ... [2020-12-02 15:33:10,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:10" (1/1) ... [2020-12-02 15:33:10,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:10" (1/1) ... [2020-12-02 15:33:11,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:10" (1/1) ... [2020-12-02 15:33:11,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:33:11,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:33:11,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:33:11,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:33:11,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:10" (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 [2020-12-02 15:33:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 15:33:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:33:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-02 15:33:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 15:33:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-02 15:33:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:33:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:33:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-02 15:33:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:33:11,829 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:33:11,830 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-02 15:33:11,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:11 BoogieIcfgContainer [2020-12-02 15:33:11,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:33:11,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:33:11,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:33:11,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:33:11,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:33:10" (1/3) ... [2020-12-02 15:33:11,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50dbf874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:33:11, skipping insertion in model container [2020-12-02 15:33:11,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:10" (2/3) ... [2020-12-02 15:33:11,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50dbf874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:33:11, skipping insertion in model container [2020-12-02 15:33:11,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:11" (3/3) ... [2020-12-02 15:33:11,842 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092d.c [2020-12-02 15:33:11,859 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:33:11,864 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:33:11,877 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:33:11,912 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:33:11,912 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:33:11,913 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:33:11,913 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:33:11,913 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:33:11,913 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:33:11,914 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:33:11,914 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:33:11,930 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-12-02 15:33:11,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 15:33:11,937 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:33:11,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:33:11,938 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:33:11,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:33:11,945 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-12-02 15:33:11,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:33:11,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109059932] [2020-12-02 15:33:11,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:33:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:33:12,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:33:12,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109059932] [2020-12-02 15:33:12,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:33:12,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 15:33:12,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911585289] [2020-12-02 15:33:12,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:33:12,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 15:33:12,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:33:12,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:33:12,177 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-12-02 15:33:12,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:33:12,200 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2020-12-02 15:33:12,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:33:12,202 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-12-02 15:33:12,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:33:12,213 INFO L225 Difference]: With dead ends: 72 [2020-12-02 15:33:12,214 INFO L226 Difference]: Without dead ends: 34 [2020-12-02 15:33:12,217 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 [2020-12-02 15:33:12,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-02 15:33:12,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-02 15:33:12,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-02 15:33:12,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-12-02 15:33:12,267 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-12-02 15:33:12,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:33:12,268 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-12-02 15:33:12,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:33:12,268 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-12-02 15:33:12,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-02 15:33:12,271 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:33:12,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:33:12,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 15:33:12,272 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:33:12,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:33:12,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-12-02 15:33:12,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:33:12,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965069148] [2020-12-02 15:33:12,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:33:12,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:33:12,428 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:33:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:33:12,502 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:33:12,559 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 15:33:12,559 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 15:33:12,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 15:33:12,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:33:12 BoogieIcfgContainer [2020-12-02 15:33:12,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 15:33:12,618 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 15:33:12,618 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 15:33:12,619 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 15:33:12,620 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:11" (3/4) ... [2020-12-02 15:33:12,624 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 15:33:12,624 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 15:33:12,631 INFO L168 Benchmark]: Toolchain (without parser) took 2200.29 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.8 MB in the beginning and 28.0 MB in the end (delta: -4.2 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2020-12-02 15:33:12,632 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 37.7 MB. Free memory is still 20.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:33:12,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.40 ms. Allocated memory is still 46.1 MB. Free memory was 23.6 MB in the beginning and 23.7 MB in the end (delta: -105.2 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-12-02 15:33:12,635 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.51 ms. Allocated memory is still 46.1 MB. Free memory was 23.7 MB in the beginning and 21.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:33:12,635 INFO L168 Benchmark]: Boogie Preprocessor took 87.81 ms. Allocated memory is still 46.1 MB. Free memory was 21.9 MB in the beginning and 20.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:33:12,638 INFO L168 Benchmark]: RCFGBuilder took 821.02 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 20.2 MB in the beginning and 28.9 MB in the end (delta: -8.7 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:33:12,639 INFO L168 Benchmark]: TraceAbstraction took 783.62 ms. Allocated memory is still 56.6 MB. Free memory was 28.4 MB in the beginning and 28.6 MB in the end (delta: -117.2 kB). Peak memory consumption was 1.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:33:12,641 INFO L168 Benchmark]: Witness Printer took 6.58 ms. Allocated memory is still 56.6 MB. Free memory was 28.6 MB in the beginning and 28.3 MB in the end (delta: 268.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:33:12,659 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 37.7 MB. Free memory is still 20.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 384.40 ms. Allocated memory is still 46.1 MB. Free memory was 23.6 MB in the beginning and 23.7 MB in the end (delta: -105.2 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.51 ms. Allocated memory is still 46.1 MB. Free memory was 23.7 MB in the beginning and 21.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 87.81 ms. Allocated memory is still 46.1 MB. Free memory was 21.9 MB in the beginning and 20.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 821.02 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 20.2 MB in the beginning and 28.9 MB in the end (delta: -8.7 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 783.62 ms. Allocated memory is still 56.6 MB. Free memory was 28.4 MB in the beginning and 28.6 MB in the end (delta: -117.2 kB). Peak memory consumption was 1.1 MB. Max. memory is 16.1 GB. * Witness Printer took 6.58 ms. Allocated memory is still 56.6 MB. Free memory was 28.6 MB in the beginning and 28.3 MB in the end (delta: 268.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 110]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftRight at line 40, overapproximation of bitwiseOr at line 92, overapproximation of bitwiseAnd at line 91, overapproximation of someBinaryArithmeticDOUBLE_SMToperation at line 105. Possible FailurePath: [L16] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L105] double x = -1.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND FALSE !(j0 < 0) [L40] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L41] COND TRUE ((i0 & i) | i1) == 0 [L42] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L106] double res = ceil_double(x); [L84] __int32_t hx, lx; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L86] ieee_double_shape_type ew_u; [L87] ew_u.value = (x) [L88] EXPR ew_u.parts.msw [L88] (hx) = ew_u.parts.msw [L89] EXPR ew_u.parts.lsw [L89] (lx) = ew_u.parts.lsw [L91] hx &= 0x7fffffff [L92] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L93] hx = 0x7ff00000 - hx [L94] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L109] COND TRUE !isinf_double(res) [L110] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 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=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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 0.2.0-2880296 [2020-12-02 15:33:15,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:33:15,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:33:15,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:33:15,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:33:15,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:33:15,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:33:15,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:33:15,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:33:15,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:33:15,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:33:15,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:33:15,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:33:15,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:33:15,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:33:15,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:33:15,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:33:15,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:33:15,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:33:15,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:33:15,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:33:15,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:33:15,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:33:15,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:33:15,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:33:15,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:33:15,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:33:15,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:33:15,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:33:15,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:33:15,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:33:15,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:33:15,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:33:15,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:33:15,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:33:15,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:33:15,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:33:15,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:33:15,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:33:15,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:33:15,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:33:15,293 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 15:33:15,351 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:33:15,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:33:15,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:33:15,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:33:15,355 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:33:15,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:33:15,355 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:33:15,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:33:15,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:33:15,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:33:15,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:33:15,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:33:15,358 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 15:33:15,358 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 15:33:15,358 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:33:15,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:33:15,359 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:33:15,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:33:15,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:33:15,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:33:15,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:33:15,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:33:15,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:33:15,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:33:15,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:33:15,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:33:15,362 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 15:33:15,362 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 15:33:15,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:33:15,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:33:15,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 15:33:15,363 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f610a17a072f47d6ea9cfa05b6dbea512bdb1b51 [2020-12-02 15:33:15,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:33:15,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:33:15,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:33:15,866 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:33:15,867 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:33:15,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092d.c [2020-12-02 15:33:15,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7314e52f/a9484aa29a564082876ef7ee9a6ba32b/FLAGd7a5b4bf3 [2020-12-02 15:33:16,652 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:33:16,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092d.c [2020-12-02 15:33:16,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7314e52f/a9484aa29a564082876ef7ee9a6ba32b/FLAGd7a5b4bf3 [2020-12-02 15:33:17,001 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7314e52f/a9484aa29a564082876ef7ee9a6ba32b [2020-12-02 15:33:17,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:33:17,007 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:33:17,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:33:17,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:33:17,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:33:17,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:33:17" (1/1) ... [2020-12-02 15:33:17,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44a4ecd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:17, skipping insertion in model container [2020-12-02 15:33:17,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:33:17" (1/1) ... [2020-12-02 15:33:17,031 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:33:17,064 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:33:17,291 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092d.c[2417,2430] [2020-12-02 15:33:17,294 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:33:17,312 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:33:17,357 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092d.c[2417,2430] [2020-12-02 15:33:17,358 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:33:17,392 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:33:17,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:17 WrapperNode [2020-12-02 15:33:17,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:33:17,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:33:17,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:33:17,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:33:17,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:17" (1/1) ... [2020-12-02 15:33:17,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:17" (1/1) ... [2020-12-02 15:33:17,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:33:17,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:33:17,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:33:17,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:33:17,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:17" (1/1) ... [2020-12-02 15:33:17,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:17" (1/1) ... [2020-12-02 15:33:17,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:17" (1/1) ... [2020-12-02 15:33:17,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:17" (1/1) ... [2020-12-02 15:33:17,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:17" (1/1) ... [2020-12-02 15:33:17,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:17" (1/1) ... [2020-12-02 15:33:17,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:17" (1/1) ... [2020-12-02 15:33:17,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:33:17,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:33:17,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:33:17,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:33:17,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:17" (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 [2020-12-02 15:33:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 15:33:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-02 15:33:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-02 15:33:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 15:33:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:33:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 15:33:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:33:17,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:33:17,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 15:33:17,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:33:19,273 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:33:19,273 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-02 15:33:19,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:19 BoogieIcfgContainer [2020-12-02 15:33:19,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:33:19,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:33:19,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:33:19,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:33:19,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:33:17" (1/3) ... [2020-12-02 15:33:19,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8f7b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:33:19, skipping insertion in model container [2020-12-02 15:33:19,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:17" (2/3) ... [2020-12-02 15:33:19,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8f7b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:33:19, skipping insertion in model container [2020-12-02 15:33:19,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:19" (3/3) ... [2020-12-02 15:33:19,290 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092d.c [2020-12-02 15:33:19,311 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:33:19,316 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:33:19,329 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:33:19,356 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:33:19,356 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:33:19,356 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:33:19,356 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:33:19,356 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:33:19,356 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:33:19,357 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:33:19,357 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:33:19,369 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-12-02 15:33:19,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 15:33:19,379 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:33:19,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:33:19,380 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:33:19,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:33:19,393 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-12-02 15:33:19,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:33:19,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879403428] [2020-12-02 15:33:19,409 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 [2020-12-02 15:33:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:33:20,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 15:33:20,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:33:20,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:33:20,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:33:20,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:33:20,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879403428] [2020-12-02 15:33:20,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:33:20,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 15:33:20,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569941675] [2020-12-02 15:33:20,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:33:20,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:33:20,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:33:20,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:33:20,664 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-12-02 15:33:20,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:33:20,688 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2020-12-02 15:33:20,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:33:20,690 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-12-02 15:33:20,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:33:20,705 INFO L225 Difference]: With dead ends: 72 [2020-12-02 15:33:20,705 INFO L226 Difference]: Without dead ends: 34 [2020-12-02 15:33:20,709 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 [2020-12-02 15:33:20,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-02 15:33:20,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-02 15:33:20,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-02 15:33:20,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-12-02 15:33:20,771 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-12-02 15:33:20,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:33:20,772 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-12-02 15:33:20,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:33:20,773 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-12-02 15:33:20,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-02 15:33:20,774 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:33:20,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:33:20,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 15:33:20,988 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:33:20,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:33:20,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-12-02 15:33:20,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:33:20,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789398134] [2020-12-02 15:33:20,993 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 [2020-12-02 15:33:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:33:21,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-02 15:33:21,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:33:26,856 WARN L197 SmtUtils]: Spent 1.84 s on a formula simplification that was a NOOP. DAG size: 32 [2020-12-02 15:33:37,246 WARN L197 SmtUtils]: Spent 1.78 s on a formula simplification that was a NOOP. DAG size: 35 [2020-12-02 15:33:52,636 WARN L197 SmtUtils]: Spent 1.85 s on a formula simplification that was a NOOP. DAG size: 41 [2020-12-02 15:33:52,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:33:52,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:34:12,703 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_ceil_double_~x_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet26_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet25_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet27_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet26_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet26_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet26_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet25_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet25_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet25_6|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet27_6|)))) (or (not (= .cse0 (fp.neg .cse1))) (not (= (fp ((_ extract 63 63) v_ULTIMATE.start_ceil_double_~x_13) ((_ extract 62 52) v_ULTIMATE.start_ceil_double_~x_13) ((_ extract 51 0) v_ULTIMATE.start_ceil_double_~x_13)) (fp.div c_~CRM .cse0 .cse2))) (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse1)) (not (bvslt (bvadd (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) v_ULTIMATE.start_ceil_double_~x_13) (_ bv20 32))) (_ bv4294966273 32)) (_ bv20 32))) (not (= .cse2 (_ +zero 11 53)))))) is different from true [2020-12-02 15:34:12,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:34:12,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789398134] [2020-12-02 15:34:12,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:34:12,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-12-02 15:34:12,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181629457] [2020-12-02 15:34:12,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-02 15:34:12,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:34:12,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-02 15:34:12,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=44, Unknown=12, NotChecked=14, Total=90 [2020-12-02 15:34:12,711 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 10 states. [2020-12-02 15:34:18,512 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet26_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet25_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet27_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet27_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet26_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet26_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet26_6|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet25_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet25_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet25_6|)))) (and (= .cse0 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven .cse1 .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_ceil_double_~x) ((_ extract 62 52) c_ULTIMATE.start_ceil_double_~x) ((_ extract 51 0) c_ULTIMATE.start_ceil_double_~x))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse2) (= .cse1 (fp.neg .cse2))))) (= roundNearestTiesToEven c_~CRM)) is different from false [2020-12-02 15:34:28,454 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_ceil_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet26_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet25_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet27_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet27_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet26_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet26_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet26_6|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet25_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet25_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet25_6|)))) (and (= .cse0 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven .cse1 .cse0) (fp ((_ extract 63 63) ULTIMATE.start_ceil_double_~x) ((_ extract 62 52) ULTIMATE.start_ceil_double_~x) ((_ extract 51 0) ULTIMATE.start_ceil_double_~x))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse2) (= .cse1 (fp.neg .cse2)) (= ((_ extract 63 32) ULTIMATE.start_ceil_double_~x) c_ULTIMATE.start_ceil_double_~i0~0)))) (exists ((ULTIMATE.start_ceil_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet26_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet25_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet27_6| (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet27_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet27_6|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet26_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet26_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet26_6|))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet25_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet25_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet25_6|)))) (and (= .cse3 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven .cse4 .cse3) (fp ((_ extract 63 63) ULTIMATE.start_ceil_double_~x) ((_ extract 62 52) ULTIMATE.start_ceil_double_~x) ((_ extract 51 0) ULTIMATE.start_ceil_double_~x))) (= (bvadd c_ULTIMATE.start_ceil_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) ULTIMATE.start_ceil_double_~x) (_ bv20 32)))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse5) (= .cse4 (fp.neg .cse5)))))) is different from false [2020-12-02 15:35:13,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:35:13,392 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2020-12-02 15:35:13,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-02 15:35:13,615 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-12-02 15:35:13,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:35:13,617 INFO L225 Difference]: With dead ends: 65 [2020-12-02 15:35:13,617 INFO L226 Difference]: Without dead ends: 46 [2020-12-02 15:35:13,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 56.9s TimeCoverageRelationStatistics Valid=24, Invalid=46, Unknown=14, NotChecked=48, Total=132 [2020-12-02 15:35:13,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-12-02 15:35:13,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 26. [2020-12-02 15:35:13,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-02 15:35:13,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2020-12-02 15:35:13,626 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 15 [2020-12-02 15:35:13,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:35:13,626 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2020-12-02 15:35:13,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-02 15:35:13,627 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2020-12-02 15:35:13,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-02 15:35:13,629 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:35:13,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:35:13,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 15:35:13,843 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:35:13,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:35:13,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1129837443, now seen corresponding path program 1 times [2020-12-02 15:35:13,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:35:13,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884930514] [2020-12-02 15:35:13,847 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 [2020-12-02 15:35:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:35:14,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-02 15:35:14,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:35:16,978 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_#t~nondet27_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet26_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet25_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet25_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet25_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet25_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet26_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet26_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet26_8|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet27_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet27_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet27_8|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_ceil_double_~x) ((_ extract 62 52) c_ULTIMATE.start_ceil_double_~x) ((_ extract 51 0) c_ULTIMATE.start_ceil_double_~x))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse2) (= (fp.neg .cse2) .cse0) (= .cse1 (_ +zero 11 53))))) is different from false [2020-12-02 15:35:22,638 WARN L197 SmtUtils]: Spent 1.71 s on a formula simplification that was a NOOP. DAG size: 35 [2020-12-02 15:35:24,796 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_#t~nondet27_8| (_ BitVec 64)) (ULTIMATE.start_ceil_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet26_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet25_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet25_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet25_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet25_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet26_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet26_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet26_8|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet27_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet27_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet27_8|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) ULTIMATE.start_ceil_double_~x) ((_ extract 62 52) ULTIMATE.start_ceil_double_~x) ((_ extract 51 0) ULTIMATE.start_ceil_double_~x))) (= (bvadd c_ULTIMATE.start_ceil_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) ULTIMATE.start_ceil_double_~x) (_ bv20 32)))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse2) (= (fp.neg .cse2) .cse0) (= .cse1 (_ +zero 11 53))))) is different from false [2020-12-02 15:35:24,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:35:24,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:35:32,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:35:32,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884930514] [2020-12-02 15:35:32,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:35:32,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-12-02 15:35:32,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284989048] [2020-12-02 15:35:32,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-02 15:35:32,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:35:32,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-02 15:35:32,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=31, Unknown=3, NotChecked=22, Total=72 [2020-12-02 15:35:32,323 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand 9 states. [2020-12-02 15:35:52,394 WARN L197 SmtUtils]: Spent 11.70 s on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2020-12-02 15:36:11,277 WARN L197 SmtUtils]: Spent 7.89 s on a formula simplification that was a NOOP. DAG size: 46 [2020-12-02 15:36:18,600 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet27_8| (_ BitVec 64)) (ULTIMATE.start_ceil_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet26_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet25_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet25_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet25_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet25_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet26_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet26_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet26_8|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet27_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet27_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet27_8|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) ULTIMATE.start_ceil_double_~x) ((_ extract 62 52) ULTIMATE.start_ceil_double_~x) ((_ extract 51 0) ULTIMATE.start_ceil_double_~x))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse2) (= (fp.neg .cse2) .cse0) (= .cse1 (_ +zero 11 53)) (= ((_ extract 63 32) ULTIMATE.start_ceil_double_~x) c_ULTIMATE.start_ceil_double_~i0~0)))) (bvsgt (bvadd (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) c_ULTIMATE.start_ceil_double_~x) (_ bv20 32))) (_ bv4294966273 32)) (_ bv51 32)) (exists ((|v_ULTIMATE.start_main_#t~nondet27_8| (_ BitVec 64)) (ULTIMATE.start_ceil_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet26_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet25_8| (_ BitVec 64))) (let ((.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet25_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet25_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet25_8|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet26_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet26_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet26_8|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet27_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet27_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet27_8|)))) (and (= (fp.div roundNearestTiesToEven .cse3 .cse4) (fp ((_ extract 63 63) ULTIMATE.start_ceil_double_~x) ((_ extract 62 52) ULTIMATE.start_ceil_double_~x) ((_ extract 51 0) ULTIMATE.start_ceil_double_~x))) (= (bvadd c_ULTIMATE.start_ceil_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) ULTIMATE.start_ceil_double_~x) (_ bv20 32)))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse5) (= (fp.neg .cse5) .cse3) (= .cse4 (_ +zero 11 53))))) (bvsgt c_ULTIMATE.start_ceil_double_~j0~0 (_ bv51 32))) is different from false [2020-12-02 15:36:20,767 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet27_8| (_ BitVec 64)) (ULTIMATE.start_ceil_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet26_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet25_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet25_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet25_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet25_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet26_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet26_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet26_8|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet27_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet27_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet27_8|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) ULTIMATE.start_ceil_double_~x) ((_ extract 62 52) ULTIMATE.start_ceil_double_~x) ((_ extract 51 0) ULTIMATE.start_ceil_double_~x))) (= (bvadd c_ULTIMATE.start_ceil_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) ULTIMATE.start_ceil_double_~x) (_ bv20 32)))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse2) (= (fp.neg .cse2) .cse0) (= .cse1 (_ +zero 11 53))))) (bvsgt c_ULTIMATE.start_ceil_double_~j0~0 (_ bv51 32))) is different from false [2020-12-02 15:36:21,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:36:21,073 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2020-12-02 15:36:21,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-02 15:36:21,074 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-12-02 15:36:21,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:36:21,075 INFO L225 Difference]: With dead ends: 42 [2020-12-02 15:36:21,075 INFO L226 Difference]: Without dead ends: 24 [2020-12-02 15:36:21,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 59.4s TimeCoverageRelationStatistics Valid=30, Invalid=48, Unknown=10, NotChecked=68, Total=156 [2020-12-02 15:36:21,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-12-02 15:36:21,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 16. [2020-12-02 15:36:21,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-02 15:36:21,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-12-02 15:36:21,080 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 15 [2020-12-02 15:36:21,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:36:21,080 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-12-02 15:36:21,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-02 15:36:21,080 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-12-02 15:36:21,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-02 15:36:21,081 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:36:21,081 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:36:21,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 15:36:21,285 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:36:21,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:36:21,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1582346339, now seen corresponding path program 1 times [2020-12-02 15:36:21,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:36:21,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233726872] [2020-12-02 15:36:21,288 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 [2020-12-02 15:36:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:36:22,454 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:36:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:36:23,554 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:36:23,674 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-02 15:36:23,674 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 15:36:23,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-02 15:36:23,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:36:23 BoogieIcfgContainer [2020-12-02 15:36:23,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 15:36:23,917 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 15:36:23,917 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 15:36:23,918 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 15:36:23,918 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:19" (3/4) ... [2020-12-02 15:36:23,921 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-02 15:36:24,034 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 15:36:24,036 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 15:36:24,038 INFO L168 Benchmark]: Toolchain (without parser) took 187030.76 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.2 MB in the beginning and 28.5 MB in the end (delta: -1.3 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-12-02 15:36:24,041 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 37.7 MB. Free memory was 17.4 MB in the beginning and 17.4 MB in the end (delta: 36.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:36:24,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.25 ms. Allocated memory is still 50.3 MB. Free memory was 27.0 MB in the beginning and 27.9 MB in the end (delta: -918.6 kB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-12-02 15:36:24,043 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.98 ms. Allocated memory is still 50.3 MB. Free memory was 27.9 MB in the beginning and 26.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:36:24,044 INFO L168 Benchmark]: Boogie Preprocessor took 44.44 ms. Allocated memory is still 50.3 MB. Free memory was 26.0 MB in the beginning and 24.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:36:24,047 INFO L168 Benchmark]: RCFGBuilder took 1784.56 ms. Allocated memory is still 50.3 MB. Free memory was 24.0 MB in the beginning and 25.0 MB in the end (delta: -962.3 kB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-12-02 15:36:24,050 INFO L168 Benchmark]: TraceAbstraction took 184635.94 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 24.6 MB in the beginning and 31.0 MB in the end (delta: -6.5 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-12-02 15:36:24,051 INFO L168 Benchmark]: Witness Printer took 119.73 ms. Allocated memory is still 60.8 MB. Free memory was 31.0 MB in the beginning and 28.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:36:24,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 37.7 MB. Free memory was 17.4 MB in the beginning and 17.4 MB in the end (delta: 36.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 384.25 ms. Allocated memory is still 50.3 MB. Free memory was 27.0 MB in the beginning and 27.9 MB in the end (delta: -918.6 kB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.98 ms. Allocated memory is still 50.3 MB. Free memory was 27.9 MB in the beginning and 26.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.44 ms. Allocated memory is still 50.3 MB. Free memory was 26.0 MB in the beginning and 24.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1784.56 ms. Allocated memory is still 50.3 MB. Free memory was 24.0 MB in the beginning and 25.0 MB in the end (delta: -962.3 kB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 184635.94 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 24.6 MB in the beginning and 31.0 MB in the end (delta: -6.5 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Witness Printer took 119.73 ms. Allocated memory is still 60.8 MB. Free memory was 31.0 MB in the beginning and 28.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 110]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] EXPR 1.0e300 [L16] static const double huge_ceil = 1.0e300; [L16] 1.0e300 VAL [huge_ceil=9094988921128908188] [L105] EXPR 1.0 [L105] EXPR -1.0 [L105] EXPR 0.0 [L105] EXPR -1.0 / 0.0 [L105] double x = -1.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_ceil=9094988921128908188] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=9094988921128908188] [L28] COND FALSE !(j0 < 20) VAL [huge_ceil=9094988921128908188] [L50] COND TRUE j0 > 51 VAL [huge_ceil=9094988921128908188] [L51] COND TRUE j0 == 0x400 [L52] EXPR x + x [L52] return x + x; [L106] double res = ceil_double(x); [L84] __int32_t hx, lx; VAL [huge_ceil=9094988921128908188] [L86] ieee_double_shape_type ew_u; [L87] ew_u.value = (x) [L88] EXPR ew_u.parts.msw [L88] (hx) = ew_u.parts.msw [L89] EXPR ew_u.parts.lsw [L89] (lx) = ew_u.parts.lsw [L91] hx &= 0x7fffffff [L92] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L93] hx = 0x7ff00000 - hx [L94] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [huge_ceil=9094988921128908188] [L109] COND TRUE !isinf_double(res) [L110] reach_error() VAL [huge_ceil=9094988921128908188] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 184.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 109.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 99 SDtfs, 44 SDslu, 213 SDs, 0 SdLazy, 80 SolverSat, 4 SolverUnsat, 19 SolverUnknown, 0 SolverNotchecked, 56.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 116.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 68.6s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 10 QuantifiedInterpolants, 11362 SizeOfPredicates, 12 NumberOfNonLiveVariables, 167 ConjunctsInSsa, 21 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...