./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16ed93f7e94a59686881f163258e4b8f85fe8ac8 .................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16ed93f7e94a59686881f163258e4b8f85fe8ac8 ..................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:12:55,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:12:55,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:12:55,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:12:55,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:12:55,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:12:55,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:12:55,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:12:55,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:12:55,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:12:55,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:12:55,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:12:55,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:12:55,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:12:55,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:12:55,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:12:55,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:12:55,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:12:55,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:12:55,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:12:55,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:12:55,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:12:55,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:12:55,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:12:55,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:12:55,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:12:55,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:12:55,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:12:55,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:12:55,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:12:55,778 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:12:55,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:12:55,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:12:55,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:12:55,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:12:55,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:12:55,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:12:55,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:12:55,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:12:55,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:12:55,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:12:55,794 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:12:55,852 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:12:55,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:12:55,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:12:55,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:12:55,855 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:12:55,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:12:55,856 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:12:55,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:12:55,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:12:55,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:12:55,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:12:55,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:12:55,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:12:55,859 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:12:55,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:12:55,860 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:12:55,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:12:55,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:12:55,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:12:55,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:12:55,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:12:55,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:12:55,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:12:55,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:12:55,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:12:55,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:12:55,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:12:55,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:12:55,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:12:55,868 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16ed93f7e94a59686881f163258e4b8f85fe8ac8 [2020-11-30 01:12:56,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:12:56,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:12:56,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:12:56,323 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:12:56,325 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:12:56,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2020-11-30 01:12:56,461 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/data/8ee57dafa/f1558e0959664c7dadb079dd660ff570/FLAGd865363e5 [2020-11-30 01:12:57,082 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:12:57,091 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2020-11-30 01:12:57,101 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/data/8ee57dafa/f1558e0959664c7dadb079dd660ff570/FLAGd865363e5 [2020-11-30 01:12:57,417 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/data/8ee57dafa/f1558e0959664c7dadb079dd660ff570 [2020-11-30 01:12:57,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:12:57,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:12:57,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:12:57,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:12:57,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:12:57,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:12:57" (1/1) ... [2020-11-30 01:12:57,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@574284fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:57, skipping insertion in model container [2020-11-30 01:12:57,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:12:57" (1/1) ... [2020-11-30 01:12:57,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:12:57,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:12:57,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:12:57,678 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:12:57,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:12:57,741 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:12:57,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:57 WrapperNode [2020-11-30 01:12:57,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:12:57,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:12:57,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:12:57,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:12:57,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:57" (1/1) ... [2020-11-30 01:12:57,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:57" (1/1) ... [2020-11-30 01:12:57,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:12:57,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:12:57,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:12:57,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:12:57,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:57" (1/1) ... [2020-11-30 01:12:57,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:57" (1/1) ... [2020-11-30 01:12:57,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:57" (1/1) ... [2020-11-30 01:12:57,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:57" (1/1) ... [2020-11-30 01:12:57,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:57" (1/1) ... [2020-11-30 01:12:57,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:57" (1/1) ... [2020-11-30 01:12:57,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:57" (1/1) ... [2020-11-30 01:12:57,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:12:57,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:12:57,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:12:57,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:12:57,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:12:57,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:12:57,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:12:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 01:12:57,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:12:57,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 01:12:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:12:57,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:12:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:12:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:12:58,723 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:12:58,729 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-11-30 01:12:58,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:12:58 BoogieIcfgContainer [2020-11-30 01:12:58,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:12:58,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:12:58,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:12:58,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:12:58,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:12:57" (1/3) ... [2020-11-30 01:12:58,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755f6b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:12:58, skipping insertion in model container [2020-11-30 01:12:58,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:57" (2/3) ... [2020-11-30 01:12:58,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755f6b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:12:58, skipping insertion in model container [2020-11-30 01:12:58,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:12:58" (3/3) ... [2020-11-30 01:12:58,742 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2020-11-30 01:12:58,754 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:12:58,759 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:12:58,775 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:12:58,815 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:12:58,816 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:12:58,816 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:12:58,816 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:12:58,816 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:12:58,816 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:12:58,817 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:12:58,817 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:12:58,835 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-11-30 01:12:58,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:12:58,842 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:12:58,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:12:58,843 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:12:58,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:12:58,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1392627184, now seen corresponding path program 1 times [2020-11-30 01:12:58,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:12:58,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302654627] [2020-11-30 01:12:58,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:12:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:59,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:59,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302654627] [2020-11-30 01:12:59,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:12:59,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:12:59,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394804632] [2020-11-30 01:12:59,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:12:59,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:12:59,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:12:59,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:12:59,133 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2020-11-30 01:12:59,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:12:59,170 INFO L93 Difference]: Finished difference Result 96 states and 157 transitions. [2020-11-30 01:12:59,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:12:59,172 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-11-30 01:12:59,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:12:59,189 INFO L225 Difference]: With dead ends: 96 [2020-11-30 01:12:59,203 INFO L226 Difference]: Without dead ends: 45 [2020-11-30 01:12:59,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:12:59,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-30 01:12:59,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-30 01:12:59,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-30 01:12:59,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2020-11-30 01:12:59,269 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 12 [2020-11-30 01:12:59,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:12:59,269 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2020-11-30 01:12:59,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:12:59,270 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2020-11-30 01:12:59,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:12:59,272 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:12:59,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:12:59,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:12:59,273 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:12:59,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:12:59,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1009660131, now seen corresponding path program 1 times [2020-11-30 01:12:59,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:12:59,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615660117] [2020-11-30 01:12:59,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:12:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:59,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:59,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615660117] [2020-11-30 01:12:59,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:12:59,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:12:59,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613702381] [2020-11-30 01:12:59,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:12:59,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:12:59,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:12:59,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:12:59,408 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand 3 states. [2020-11-30 01:12:59,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:12:59,440 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2020-11-30 01:12:59,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:12:59,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-30 01:12:59,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:12:59,445 INFO L225 Difference]: With dead ends: 83 [2020-11-30 01:12:59,445 INFO L226 Difference]: Without dead ends: 45 [2020-11-30 01:12:59,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:12:59,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-30 01:12:59,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-30 01:12:59,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-30 01:12:59,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2020-11-30 01:12:59,467 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 13 [2020-11-30 01:12:59,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:12:59,467 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2020-11-30 01:12:59,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:12:59,468 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2020-11-30 01:12:59,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:12:59,468 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:12:59,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:12:59,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:12:59,469 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:12:59,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:12:59,470 INFO L82 PathProgramCache]: Analyzing trace with hash 34829304, now seen corresponding path program 1 times [2020-11-30 01:12:59,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:12:59,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111379612] [2020-11-30 01:12:59,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:12:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:12:59,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:12:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:12:59,710 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:12:59,761 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:12:59,766 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:12:59,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:12:59,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:12:59 BoogieIcfgContainer [2020-11-30 01:12:59,845 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:12:59,846 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:12:59,846 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:12:59,846 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:12:59,847 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:12:58" (3/4) ... [2020-11-30 01:12:59,851 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:12:59,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:12:59,853 INFO L168 Benchmark]: Toolchain (without parser) took 2430.39 ms. Allocated memory is still 92.3 MB. Free memory was 71.2 MB in the beginning and 39.8 MB in the end (delta: 31.4 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:59,854 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 73.4 MB. Free memory is still 46.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:12:59,855 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.62 ms. Allocated memory is still 92.3 MB. Free memory was 71.0 MB in the beginning and 57.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:59,856 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.17 ms. Allocated memory is still 92.3 MB. Free memory was 57.8 MB in the beginning and 55.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:59,857 INFO L168 Benchmark]: Boogie Preprocessor took 44.49 ms. Allocated memory is still 92.3 MB. Free memory was 55.3 MB in the beginning and 53.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:59,858 INFO L168 Benchmark]: RCFGBuilder took 878.32 ms. Allocated memory is still 92.3 MB. Free memory was 53.3 MB in the beginning and 45.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:59,859 INFO L168 Benchmark]: TraceAbstraction took 1112.50 ms. Allocated memory is still 92.3 MB. Free memory was 45.0 MB in the beginning and 40.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:59,859 INFO L168 Benchmark]: Witness Printer took 5.33 ms. Allocated memory is still 92.3 MB. Free memory was 40.0 MB in the beginning and 39.8 MB in the end (delta: 285.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:12:59,864 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 73.4 MB. Free memory is still 46.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 319.62 ms. Allocated memory is still 92.3 MB. Free memory was 71.0 MB in the beginning and 57.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.17 ms. Allocated memory is still 92.3 MB. Free memory was 57.8 MB in the beginning and 55.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.49 ms. Allocated memory is still 92.3 MB. Free memory was 55.3 MB in the beginning and 53.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 878.32 ms. Allocated memory is still 92.3 MB. Free memory was 53.3 MB in the beginning and 45.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1112.50 ms. Allocated memory is still 92.3 MB. Free memory was 45.0 MB in the beginning and 40.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Witness Printer took 5.33 ms. Allocated memory is still 92.3 MB. Free memory was 40.0 MB in the beginning and 39.8 MB in the end (delta: 285.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 163, overapproximation of bitwiseAnd at line 172, overapproximation of someBinaryArithmeticDOUBLEoperation at line 147. Possible FailurePath: [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L30] static const double zero = 0.0; [L113-L116] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L118] static const double zero_log10 = 0.0; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L182] double x = __VERIFIER_nondet_double(); [L184] x < 0 && isfinite_double(x) [L166] __int32_t hx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L184] x < 0 && isfinite_double(x) VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L184] COND TRUE x < 0 && isfinite_double(x) [L121] double y, z; [L122] __int32_t i, k, hx; [L123] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L126] ieee_double_shape_type ew_u; [L127] ew_u.value = (x) [L128] EXPR ew_u.parts.msw [L128] (hx) = ew_u.parts.msw [L129] EXPR ew_u.parts.lsw [L129] (lx) = ew_u.parts.lsw [L132] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L133] COND FALSE !(hx < 0x00100000) VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L146] COND TRUE hx >= 0x7ff00000 [L147] return x + x; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L186] double res = __ieee754_log10(x); [L163] return x != x; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L189] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_0970a.c", 3, "reach_error") VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 125 SDtfs, 0 SDslu, 55 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:13:02,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:13:02,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:13:03,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:13:03,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:13:03,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:13:03,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:13:03,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:13:03,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:13:03,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:13:03,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:13:03,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:13:03,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:13:03,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:13:03,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:13:03,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:13:03,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:13:03,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:13:03,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:13:03,097 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:13:03,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:13:03,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:13:03,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:13:03,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:13:03,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:13:03,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:13:03,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:13:03,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:13:03,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:13:03,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:13:03,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:13:03,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:13:03,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:13:03,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:13:03,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:13:03,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:13:03,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:13:03,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:13:03,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:13:03,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:13:03,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:13:03,141 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 01:13:03,197 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:13:03,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:13:03,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:13:03,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:13:03,204 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:13:03,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:13:03,205 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:13:03,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:13:03,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:13:03,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:13:03,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:13:03,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:13:03,207 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:13:03,208 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:13:03,208 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:13:03,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:13:03,208 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:13:03,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:13:03,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:13:03,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:13:03,209 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:13:03,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:13:03,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:13:03,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:13:03,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:13:03,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:13:03,211 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 01:13:03,211 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:13:03,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:13:03,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:13:03,212 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:13:03,212 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16ed93f7e94a59686881f163258e4b8f85fe8ac8 [2020-11-30 01:13:03,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:13:03,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:13:03,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:13:03,809 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:13:03,810 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:13:03,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2020-11-30 01:13:03,889 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/data/39fe99eac/74fe79a74dec41f784a69505c2668e68/FLAGccadf75cd [2020-11-30 01:13:04,617 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:13:04,619 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2020-11-30 01:13:04,636 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/data/39fe99eac/74fe79a74dec41f784a69505c2668e68/FLAGccadf75cd [2020-11-30 01:13:04,920 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/data/39fe99eac/74fe79a74dec41f784a69505c2668e68 [2020-11-30 01:13:04,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:13:04,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:13:04,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:13:04,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:13:04,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:13:04,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:13:04" (1/1) ... [2020-11-30 01:13:04,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e57ebdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:04, skipping insertion in model container [2020-11-30 01:13:04,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:13:04" (1/1) ... [2020-11-30 01:13:04,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:13:05,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:13:05,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:13:05,317 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:13:05,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:13:05,480 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:13:05,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:05 WrapperNode [2020-11-30 01:13:05,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:13:05,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:13:05,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:13:05,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:13:05,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:05" (1/1) ... [2020-11-30 01:13:05,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:05" (1/1) ... [2020-11-30 01:13:05,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:13:05,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:13:05,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:13:05,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:13:05,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:05" (1/1) ... [2020-11-30 01:13:05,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:05" (1/1) ... [2020-11-30 01:13:05,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:05" (1/1) ... [2020-11-30 01:13:05,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:05" (1/1) ... [2020-11-30 01:13:05,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:05" (1/1) ... [2020-11-30 01:13:05,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:05" (1/1) ... [2020-11-30 01:13:05,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:05" (1/1) ... [2020-11-30 01:13:05,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:13:05,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:13:05,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:13:05,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:13:05,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:13:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-30 01:13:05,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-30 01:13:05,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 01:13:05,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:13:05,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 01:13:05,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:13:05,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:13:05,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 01:13:05,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:13:39,203 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:13:39,204 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-11-30 01:13:39,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:13:39 BoogieIcfgContainer [2020-11-30 01:13:39,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:13:39,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:13:39,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:13:39,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:13:39,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:13:04" (1/3) ... [2020-11-30 01:13:39,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b62d582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:13:39, skipping insertion in model container [2020-11-30 01:13:39,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:13:05" (2/3) ... [2020-11-30 01:13:39,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b62d582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:13:39, skipping insertion in model container [2020-11-30 01:13:39,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:13:39" (3/3) ... [2020-11-30 01:13:39,215 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2020-11-30 01:13:39,225 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:13:39,231 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:13:39,243 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:13:39,268 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:13:39,268 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:13:39,268 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:13:39,269 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:13:39,269 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:13:39,269 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:13:39,269 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:13:39,269 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:13:39,282 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-11-30 01:13:39,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:13:39,288 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:13:39,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:39,289 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:13:39,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:39,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1392627184, now seen corresponding path program 1 times [2020-11-30 01:13:39,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:13:39,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197454415] [2020-11-30 01:13:39,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 01:13:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:13:39,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 01:13:39,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:13:39,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:13:39,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:13:39,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:13:39,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197454415] [2020-11-30 01:13:39,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:13:39,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 01:13:39,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815278405] [2020-11-30 01:13:39,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:13:39,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:13:39,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:13:39,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:13:39,699 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2020-11-30 01:13:39,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:13:39,725 INFO L93 Difference]: Finished difference Result 96 states and 157 transitions. [2020-11-30 01:13:39,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:13:39,727 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-11-30 01:13:39,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:13:39,739 INFO L225 Difference]: With dead ends: 96 [2020-11-30 01:13:39,740 INFO L226 Difference]: Without dead ends: 45 [2020-11-30 01:13:39,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:13:39,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-30 01:13:39,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-30 01:13:39,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-30 01:13:39,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2020-11-30 01:13:39,803 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 12 [2020-11-30 01:13:39,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:13:39,805 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2020-11-30 01:13:39,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:13:39,805 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2020-11-30 01:13:39,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:13:39,808 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:13:39,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:40,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:13:40,023 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:13:40,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:40,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1009660131, now seen corresponding path program 1 times [2020-11-30 01:13:40,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:13:40,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647890254] [2020-11-30 01:13:40,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 01:13:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:13:40,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 01:13:40,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:13:40,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:13:40,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:13:40,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:13:40,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647890254] [2020-11-30 01:13:40,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:13:40,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-30 01:13:40,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923006141] [2020-11-30 01:13:40,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:13:40,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:13:40,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:13:40,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:13:40,368 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand 3 states. [2020-11-30 01:13:40,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:13:40,398 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2020-11-30 01:13:40,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:13:40,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-30 01:13:40,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:13:40,405 INFO L225 Difference]: With dead ends: 83 [2020-11-30 01:13:40,406 INFO L226 Difference]: Without dead ends: 45 [2020-11-30 01:13:40,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:13:40,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-30 01:13:40,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-30 01:13:40,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-30 01:13:40,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2020-11-30 01:13:40,430 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 13 [2020-11-30 01:13:40,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:13:40,431 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2020-11-30 01:13:40,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:13:40,432 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2020-11-30 01:13:40,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:13:40,436 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:13:40,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:40,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:13:40,652 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:13:40,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:40,653 INFO L82 PathProgramCache]: Analyzing trace with hash 34829304, now seen corresponding path program 1 times [2020-11-30 01:13:40,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:13:40,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [875721083] [2020-11-30 01:13:40,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 01:13:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:13:40,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 01:13:40,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:13:41,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:13:41,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:13:41,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:13:41,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [875721083] [2020-11-30 01:13:41,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:13:41,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-30 01:13:41,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278429051] [2020-11-30 01:13:41,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:13:41,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:13:41,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:13:41,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:13:41,651 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand 10 states. [2020-11-30 01:13:48,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:13:48,534 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2020-11-30 01:13:48,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:13:48,583 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-11-30 01:13:48,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:13:48,584 INFO L225 Difference]: With dead ends: 50 [2020-11-30 01:13:48,584 INFO L226 Difference]: Without dead ends: 19 [2020-11-30 01:13:48,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-11-30 01:13:48,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-30 01:13:48,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-30 01:13:48,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 01:13:48,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-11-30 01:13:48,589 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2020-11-30 01:13:48,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:13:48,590 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-11-30 01:13:48,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:13:48,590 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-11-30 01:13:48,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:13:48,591 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:13:48,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:13:48,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:13:48,804 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:13:48,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:13:48,804 INFO L82 PathProgramCache]: Analyzing trace with hash -675358345, now seen corresponding path program 1 times [2020-11-30 01:13:48,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:13:48,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759956613] [2020-11-30 01:13:48,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/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 [2020-11-30 01:13:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:13:50,464 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:13:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:13:52,019 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:13:52,228 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-30 01:13:52,229 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:13:52,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 01:13:52,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:13:52 BoogieIcfgContainer [2020-11-30 01:13:52,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:13:52,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:13:52,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:13:52,541 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:13:52,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:13:39" (3/4) ... [2020-11-30 01:13:52,554 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:13:52,721 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_63d2eae5-5898-4654-b3d3-283e1d9764bc/bin/uautomizer/witness.graphml [2020-11-30 01:13:52,721 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:13:52,724 INFO L168 Benchmark]: Toolchain (without parser) took 47794.87 ms. Allocated memory is still 73.4 MB. Free memory was 51.6 MB in the beginning and 28.6 MB in the end (delta: 23.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:13:52,727 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 50.3 MB. Free memory is still 31.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:13:52,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 550.90 ms. Allocated memory is still 73.4 MB. Free memory was 51.4 MB in the beginning and 55.2 MB in the end (delta: -3.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:13:52,729 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.51 ms. Allocated memory is still 73.4 MB. Free memory was 55.2 MB in the beginning and 52.6 MB in the end (delta: 2.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:13:52,729 INFO L168 Benchmark]: Boogie Preprocessor took 82.75 ms. Allocated memory is still 73.4 MB. Free memory was 52.6 MB in the beginning and 50.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:13:52,730 INFO L168 Benchmark]: RCFGBuilder took 33534.15 ms. Allocated memory is still 73.4 MB. Free memory was 50.1 MB in the beginning and 39.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:13:52,731 INFO L168 Benchmark]: TraceAbstraction took 13331.44 ms. Allocated memory is still 73.4 MB. Free memory was 39.3 MB in the beginning and 33.3 MB in the end (delta: 6.0 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:13:52,731 INFO L168 Benchmark]: Witness Printer took 181.12 ms. Allocated memory is still 73.4 MB. Free memory was 33.3 MB in the beginning and 28.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:13:52,738 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 50.3 MB. Free memory is still 31.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 550.90 ms. Allocated memory is still 73.4 MB. Free memory was 51.4 MB in the beginning and 55.2 MB in the end (delta: -3.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 105.51 ms. Allocated memory is still 73.4 MB. Free memory was 55.2 MB in the beginning and 52.6 MB in the end (delta: 2.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.75 ms. Allocated memory is still 73.4 MB. Free memory was 52.6 MB in the beginning and 50.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 33534.15 ms. Allocated memory is still 73.4 MB. Free memory was 50.1 MB in the beginning and 39.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13331.44 ms. Allocated memory is still 73.4 MB. Free memory was 39.3 MB in the beginning and 33.3 MB in the end (delta: 6.0 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Witness Printer took 181.12 ms. Allocated memory is still 73.4 MB. Free memory was 33.3 MB in the beginning and 28.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L30] static const double zero = 0.0; [L113-L116] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L118] static const double zero_log10 = 0.0; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L182] double x = __VERIFIER_nondet_double(); [L184] x < 0 && isfinite_double(x) [L166] __int32_t hx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L184] x < 0 && isfinite_double(x) VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L184] COND TRUE x < 0 && isfinite_double(x) [L121] double y, z; [L122] __int32_t i, k, hx; [L123] __uint32_t lx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L126] ieee_double_shape_type ew_u; [L127] ew_u.value = (x) [L128] EXPR ew_u.parts.msw [L128] (hx) = ew_u.parts.msw [L129] EXPR ew_u.parts.lsw [L129] (lx) = ew_u.parts.lsw [L132] k = 0 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L133] COND TRUE hx < 0x00100000 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L134] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L135] return -two54_log10 / zero_log10; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L186] double res = __ieee754_log10(x); [L163] return x != x; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L189] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_0970a.c", 3, "reach_error") VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 38 SDslu, 92 SDs, 0 SdLazy, 20 SolverSat, 2 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 17 QuantifiedInterpolants, 4426 SizeOfPredicates, 8 NumberOfNonLiveVariables, 210 ConjunctsInSsa, 11 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...