./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.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_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/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 50b586478a7305427fbe78a3e49b383cfc2fc5af .................................................................................................................................................................................................................................................................................................................................... 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_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/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 50b586478a7305427fbe78a3e49b383cfc2fc5af ......................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-29 23:39:22,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:39:22,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:39:22,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:39:22,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:39:22,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:39:22,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:39:22,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:39:22,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:39:22,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:39:22,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:39:22,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:39:22,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:39:22,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:39:22,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:39:22,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:39:22,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:39:22,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:39:22,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:39:22,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:39:22,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:39:22,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:39:22,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:39:22,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:39:22,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:39:22,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:39:22,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:39:22,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:39:22,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:39:22,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:39:22,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:39:22,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:39:22,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:39:22,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:39:22,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:39:22,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:39:22,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:39:22,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:39:22,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:39:22,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:39:22,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:39:22,755 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 23:39:22,793 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:39:22,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:39:22,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:39:22,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:39:22,795 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:39:22,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:39:22,795 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:39:22,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:39:22,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:39:22,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:39:22,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:39:22,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:39:22,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:39:22,796 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:39:22,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:39:22,797 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:39:22,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:39:22,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:39:22,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:39:22,797 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:39:22,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:39:22,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:39:22,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:39:22,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:39:22,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:39:22,799 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:39:22,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:39:22,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:39:22,799 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:39:22,799 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_17a150f1-ad44-4d18-bd5f-0556ae42fd89/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50b586478a7305427fbe78a3e49b383cfc2fc5af [2020-11-29 23:39:23,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:39:23,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:39:23,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:39:23,098 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:39:23,099 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:39:23,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2020-11-29 23:39:23,181 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/data/95234e706/01e0f983305c4aa8998a116ff13e2fbc/FLAGb0672d84d [2020-11-29 23:39:23,733 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:39:23,733 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2020-11-29 23:39:23,745 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/data/95234e706/01e0f983305c4aa8998a116ff13e2fbc/FLAGb0672d84d [2020-11-29 23:39:24,086 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/data/95234e706/01e0f983305c4aa8998a116ff13e2fbc [2020-11-29 23:39:24,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:39:24,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:39:24,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:39:24,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:39:24,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:39:24,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4483ba5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24, skipping insertion in model container [2020-11-29 23:39:24,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:39:24,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:39:24,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:39:24,428 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:39:24,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:39:24,523 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:39:24,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24 WrapperNode [2020-11-29 23:39:24,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:39:24,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:39:24,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:39:24,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:39:24,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:39:24,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:39:24,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:39:24,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:39:24,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... [2020-11-29 23:39:24,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:39:24,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:39:24,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:39:24,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:39:24,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:39:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:39:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:39:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 23:39:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:39:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 23:39:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:39:24,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:39:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 23:39:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-29 23:39:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:39:25,730 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:39:25,731 INFO L298 CfgBuilder]: Removed 50 assume(true) statements. [2020-11-29 23:39:25,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:39:25 BoogieIcfgContainer [2020-11-29 23:39:25,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:39:25,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:39:25,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:39:25,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:39:25,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:39:24" (1/3) ... [2020-11-29 23:39:25,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc94abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:39:25, skipping insertion in model container [2020-11-29 23:39:25,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:24" (2/3) ... [2020-11-29 23:39:25,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc94abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:39:25, skipping insertion in model container [2020-11-29 23:39:25,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:39:25" (3/3) ... [2020-11-29 23:39:25,744 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681a.c [2020-11-29 23:39:25,756 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:39:25,763 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 23:39:25,777 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 23:39:25,817 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:39:25,818 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:39:25,818 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:39:25,818 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:39:25,818 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:39:25,818 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:39:25,818 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:39:25,819 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:39:25,838 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2020-11-29 23:39:25,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 23:39:25,847 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:39:25,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:39:25,848 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:39:25,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:39:25,855 INFO L82 PathProgramCache]: Analyzing trace with hash 531143789, now seen corresponding path program 1 times [2020-11-29 23:39:25,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:39:25,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119948417] [2020-11-29 23:39:25,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:39:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:39:26,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:39:26,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119948417] [2020-11-29 23:39:26,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:39:26,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:39:26,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180899554] [2020-11-29 23:39:26,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 23:39:26,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:39:26,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 23:39:26,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:39:26,110 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2020-11-29 23:39:26,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:39:26,165 INFO L93 Difference]: Finished difference Result 235 states and 395 transitions. [2020-11-29 23:39:26,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 23:39:26,166 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-29 23:39:26,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:39:26,187 INFO L225 Difference]: With dead ends: 235 [2020-11-29 23:39:26,187 INFO L226 Difference]: Without dead ends: 115 [2020-11-29 23:39:26,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:39:26,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-29 23:39:26,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-11-29 23:39:26,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-29 23:39:26,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2020-11-29 23:39:26,236 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 11 [2020-11-29 23:39:26,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:39:26,236 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2020-11-29 23:39:26,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 23:39:26,237 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2020-11-29 23:39:26,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 23:39:26,238 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:39:26,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:39:26,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:39:26,238 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:39:26,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:39:26,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1379574948, now seen corresponding path program 1 times [2020-11-29 23:39:26,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:39:26,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758898398] [2020-11-29 23:39:26,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:39:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:39:26,383 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:39:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:39:26,485 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:39:26,533 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:39:26,533 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 23:39:26,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 23:39:26,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:39:26 BoogieIcfgContainer [2020-11-29 23:39:26,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:39:26,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:39:26,611 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:39:26,611 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:39:26,611 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:39:25" (3/4) ... [2020-11-29 23:39:26,614 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 23:39:26,615 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:39:26,616 INFO L168 Benchmark]: Toolchain (without parser) took 2525.44 ms. Allocated memory is still 113.2 MB. Free memory was 83.0 MB in the beginning and 44.9 MB in the end (delta: 38.1 MB). Peak memory consumption was 39.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:39:26,617 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 77.6 MB. Free memory was 35.6 MB in the beginning and 35.5 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:39:26,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 425.37 ms. Allocated memory is still 113.2 MB. Free memory was 82.7 MB in the beginning and 85.7 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:39:26,625 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.31 ms. Allocated memory is still 113.2 MB. Free memory was 85.7 MB in the beginning and 82.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:39:26,626 INFO L168 Benchmark]: Boogie Preprocessor took 93.88 ms. Allocated memory is still 113.2 MB. Free memory was 82.2 MB in the beginning and 78.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:39:26,626 INFO L168 Benchmark]: RCFGBuilder took 1026.38 ms. Allocated memory is still 113.2 MB. Free memory was 78.7 MB in the beginning and 80.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 50.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:39:26,627 INFO L168 Benchmark]: TraceAbstraction took 875.97 ms. Allocated memory is still 113.2 MB. Free memory was 80.6 MB in the beginning and 45.6 MB in the end (delta: 34.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:39:26,628 INFO L168 Benchmark]: Witness Printer took 4.12 ms. Allocated memory is still 113.2 MB. Free memory was 45.6 MB in the beginning and 44.9 MB in the end (delta: 711.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:39:26,631 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 77.6 MB. Free memory was 35.6 MB in the beginning and 35.5 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 425.37 ms. Allocated memory is still 113.2 MB. Free memory was 82.7 MB in the beginning and 85.7 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.31 ms. Allocated memory is still 113.2 MB. Free memory was 85.7 MB in the beginning and 82.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 93.88 ms. Allocated memory is still 113.2 MB. Free memory was 82.2 MB in the beginning and 78.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1026.38 ms. Allocated memory is still 113.2 MB. Free memory was 78.7 MB in the beginning and 80.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 50.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 875.97 ms. Allocated memory is still 113.2 MB. Free memory was 80.6 MB in the beginning and 45.6 MB in the end (delta: 34.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.12 ms. Allocated memory is still 113.2 MB. Free memory was 45.6 MB in the beginning and 44.9 MB in the end (delta: 711.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 269. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L265] double x = 0.0; [L266] double y = 0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L267] double res = __ieee754_atan2(y, x); [L269] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L269] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L3] __assert_fail("0", "double_req_bl_0681a.c", 3, "reach_error") VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 167 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:39:29,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:39:29,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:39:29,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:39:29,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:39:29,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:39:29,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:39:29,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:39:29,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:39:29,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:39:29,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:39:29,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:39:29,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:39:29,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:39:29,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:39:29,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:39:29,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:39:29,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:39:29,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:39:29,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:39:29,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:39:29,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:39:29,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:39:29,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:39:29,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:39:29,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:39:29,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:39:29,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:39:29,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:39:29,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:39:29,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:39:29,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:39:29,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:39:29,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:39:29,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:39:29,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:39:29,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:39:29,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:39:29,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:39:29,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:39:29,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:39:29,315 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 23:39:29,366 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:39:29,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:39:29,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:39:29,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:39:29,370 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:39:29,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:39:29,371 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:39:29,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:39:29,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:39:29,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:39:29,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:39:29,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:39:29,373 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 23:39:29,373 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 23:39:29,373 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:39:29,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:39:29,374 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:39:29,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:39:29,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:39:29,376 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:39:29,376 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:39:29,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:39:29,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:39:29,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:39:29,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:39:29,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:39:29,385 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 23:39:29,385 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 23:39:29,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:39:29,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:39:29,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 23:39:29,386 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_17a150f1-ad44-4d18-bd5f-0556ae42fd89/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50b586478a7305427fbe78a3e49b383cfc2fc5af [2020-11-29 23:39:29,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:39:29,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:39:29,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:39:29,801 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:39:29,807 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:39:29,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2020-11-29 23:39:29,882 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/data/1500bad34/1e8a0ac6705443d5a11a4ee0cb5bf325/FLAG6891f21c6 [2020-11-29 23:39:30,487 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:39:30,502 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2020-11-29 23:39:30,513 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/data/1500bad34/1e8a0ac6705443d5a11a4ee0cb5bf325/FLAG6891f21c6 [2020-11-29 23:39:30,826 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/data/1500bad34/1e8a0ac6705443d5a11a4ee0cb5bf325 [2020-11-29 23:39:30,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:39:30,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:39:30,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:39:30,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:39:30,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:39:30,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:39:30" (1/1) ... [2020-11-29 23:39:30,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a34bf6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:30, skipping insertion in model container [2020-11-29 23:39:30,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:39:30" (1/1) ... [2020-11-29 23:39:30,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:39:30,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:39:31,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:39:31,163 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:39:31,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:39:31,284 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:39:31,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:31 WrapperNode [2020-11-29 23:39:31,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:39:31,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:39:31,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:39:31,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:39:31,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:31" (1/1) ... [2020-11-29 23:39:31,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:31" (1/1) ... [2020-11-29 23:39:31,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:39:31,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:39:31,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:39:31,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:39:31,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:31" (1/1) ... [2020-11-29 23:39:31,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:31" (1/1) ... [2020-11-29 23:39:31,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:31" (1/1) ... [2020-11-29 23:39:31,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:31" (1/1) ... [2020-11-29 23:39:31,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:31" (1/1) ... [2020-11-29 23:39:31,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:31" (1/1) ... [2020-11-29 23:39:31,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:31" (1/1) ... [2020-11-29 23:39:31,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:39:31,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:39:31,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:39:31,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:39:31,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:39:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-29 23:39:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-29 23:39:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 23:39:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:39:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-11-29 23:39:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 23:39:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:39:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:39:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 23:39:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:40:10,504 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:40:10,504 INFO L298 CfgBuilder]: Removed 50 assume(true) statements. [2020-11-29 23:40:10,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:40:10 BoogieIcfgContainer [2020-11-29 23:40:10,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:40:10,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:40:10,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:40:10,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:40:10,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:39:30" (1/3) ... [2020-11-29 23:40:10,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7712e6a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:40:10, skipping insertion in model container [2020-11-29 23:40:10,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:39:31" (2/3) ... [2020-11-29 23:40:10,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7712e6a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:40:10, skipping insertion in model container [2020-11-29 23:40:10,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:40:10" (3/3) ... [2020-11-29 23:40:10,520 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681a.c [2020-11-29 23:40:10,530 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:40:10,535 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 23:40:10,547 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 23:40:10,578 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:40:10,578 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:40:10,578 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:40:10,578 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:40:10,579 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:40:10,579 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:40:10,579 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:40:10,579 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:40:10,592 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2020-11-29 23:40:10,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 23:40:10,597 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:40:10,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:40:10,598 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:40:10,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:40:10,604 INFO L82 PathProgramCache]: Analyzing trace with hash 531143789, now seen corresponding path program 1 times [2020-11-29 23:40:10,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:40:10,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [688417553] [2020-11-29 23:40:10,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 23:40:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:40:11,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 23:40:11,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:40:11,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:40:11,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:40:11,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:40:11,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [688417553] [2020-11-29 23:40:11,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:40:11,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 23:40:11,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074913526] [2020-11-29 23:40:11,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 23:40:11,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:40:11,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 23:40:11,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:40:11,109 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2020-11-29 23:40:11,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:40:11,168 INFO L93 Difference]: Finished difference Result 235 states and 395 transitions. [2020-11-29 23:40:11,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 23:40:11,170 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-29 23:40:11,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:40:11,184 INFO L225 Difference]: With dead ends: 235 [2020-11-29 23:40:11,184 INFO L226 Difference]: Without dead ends: 115 [2020-11-29 23:40:11,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:40:11,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-29 23:40:11,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-11-29 23:40:11,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-29 23:40:11,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2020-11-29 23:40:11,249 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 11 [2020-11-29 23:40:11,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:40:11,249 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2020-11-29 23:40:11,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 23:40:11,250 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2020-11-29 23:40:11,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 23:40:11,253 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:40:11,253 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:40:11,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 23:40:11,462 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:40:11,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:40:11,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1379574948, now seen corresponding path program 1 times [2020-11-29 23:40:11,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:40:11,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632193732] [2020-11-29 23:40:11,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 23:40:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:40:11,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 23:40:11,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:40:12,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:40:12,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:40:12,323 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:40:12,601 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:40:12,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:40:12,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632193732] [2020-11-29 23:40:12,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:40:12,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2020-11-29 23:40:12,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341115214] [2020-11-29 23:40:12,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 23:40:12,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:40:12,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 23:40:12,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-11-29 23:40:12,804 INFO L87 Difference]: Start difference. First operand 115 states and 164 transitions. Second operand 12 states. [2020-11-29 23:40:14,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:40:14,801 INFO L93 Difference]: Finished difference Result 171 states and 238 transitions. [2020-11-29 23:40:14,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 23:40:14,803 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2020-11-29 23:40:14,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:40:14,805 INFO L225 Difference]: With dead ends: 171 [2020-11-29 23:40:14,807 INFO L226 Difference]: Without dead ends: 76 [2020-11-29 23:40:14,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-11-29 23:40:14,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-29 23:40:14,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-11-29 23:40:14,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-29 23:40:14,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2020-11-29 23:40:14,836 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 13 [2020-11-29 23:40:14,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:40:14,836 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2020-11-29 23:40:14,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 23:40:14,837 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2020-11-29 23:40:14,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 23:40:14,838 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:40:14,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:40:15,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 23:40:15,039 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:40:15,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:40:15,039 INFO L82 PathProgramCache]: Analyzing trace with hash -640703133, now seen corresponding path program 1 times [2020-11-29 23:40:15,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:40:15,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818315424] [2020-11-29 23:40:15,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 23:40:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:40:16,030 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:40:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:40:16,812 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:40:16,934 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-29 23:40:16,934 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 23:40:17,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 23:40:17,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:40:17 BoogieIcfgContainer [2020-11-29 23:40:17,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:40:17,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:40:17,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:40:17,200 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:40:17,200 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:40:10" (3/4) ... [2020-11-29 23:40:17,203 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 23:40:17,305 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_17a150f1-ad44-4d18-bd5f-0556ae42fd89/bin/uautomizer/witness.graphml [2020-11-29 23:40:17,305 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:40:17,307 INFO L168 Benchmark]: Toolchain (without parser) took 46469.44 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 35.4 MB in the beginning and 33.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:40:17,307 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory is still 39.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:40:17,307 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.31 ms. Allocated memory is still 56.6 MB. Free memory was 35.2 MB in the beginning and 36.0 MB in the end (delta: -836.7 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 23:40:17,308 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.50 ms. Allocated memory is still 56.6 MB. Free memory was 36.0 MB in the beginning and 32.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:40:17,309 INFO L168 Benchmark]: Boogie Preprocessor took 99.58 ms. Allocated memory is still 56.6 MB. Free memory was 32.4 MB in the beginning and 28.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:40:17,309 INFO L168 Benchmark]: RCFGBuilder took 39048.76 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 28.4 MB in the beginning and 32.9 MB in the end (delta: -4.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:40:17,310 INFO L168 Benchmark]: TraceAbstraction took 6683.86 ms. Allocated memory is still 73.4 MB. Free memory was 53.1 MB in the beginning and 39.2 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:40:17,310 INFO L168 Benchmark]: Witness Printer took 105.72 ms. Allocated memory is still 73.4 MB. Free memory was 39.2 MB in the beginning and 33.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:40:17,320 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory is still 39.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 446.31 ms. Allocated memory is still 56.6 MB. Free memory was 35.2 MB in the beginning and 36.0 MB in the end (delta: -836.7 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.50 ms. Allocated memory is still 56.6 MB. Free memory was 36.0 MB in the beginning and 32.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 99.58 ms. Allocated memory is still 56.6 MB. Free memory was 32.4 MB in the beginning and 28.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 39048.76 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 28.4 MB in the beginning and 32.9 MB in the end (delta: -4.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6683.86 ms. Allocated memory is still 73.4 MB. Free memory was 53.1 MB in the beginning and 39.2 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * Witness Printer took 105.72 ms. Allocated memory is still 73.4 MB. Free memory was 39.2 MB in the beginning and 33.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L265] double x = 0.0; [L266] double y = 0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L163-L164] COND FALSE !(((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000)) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L166] COND FALSE !(((hx - 0x3ff00000) | lx) == 0) [L168] m = ((hy >> 31) & 1) | ((hx >> 30) & 2) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L170] COND FALSE !((iy | ly) == 0) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L182] COND TRUE (ix | lx) == 0 VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L183] EXPR (hy < 0) ? -pi_o_2 - tiny_atan2 : pi_o_2 + tiny_atan2 VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L183] return (hy < 0) ? -pi_o_2 - tiny_atan2 : pi_o_2 + tiny_atan2; [L267] double res = __ieee754_atan2(y, x); [L269] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L269] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L3] __assert_fail("0", "double_req_bl_0681a.c", 3, "reach_error") VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 250 SDtfs, 648 SDslu, 14 SDs, 0 SdLazy, 30 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred 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, 1.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 13 QuantifiedInterpolants, 5360 SizeOfPredicates, 16 NumberOfNonLiveVariables, 258 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...