./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0910b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0910b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c07e352bcbba2d31c9106eacdc6e86cfa9e8af72 ......................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0910b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c07e352bcbba2d31c9106eacdc6e86cfa9e8af72 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-03 01:05:40,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 01:05:40,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 01:05:40,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 01:05:40,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 01:05:40,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 01:05:40,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 01:05:40,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 01:05:40,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 01:05:40,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 01:05:40,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 01:05:40,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 01:05:40,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 01:05:40,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 01:05:40,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 01:05:40,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 01:05:40,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 01:05:40,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 01:05:40,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 01:05:40,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 01:05:40,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 01:05:40,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 01:05:40,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 01:05:40,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 01:05:40,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 01:05:40,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 01:05:40,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 01:05:40,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 01:05:40,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 01:05:40,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 01:05:40,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 01:05:40,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 01:05:40,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 01:05:40,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 01:05:40,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 01:05:40,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 01:05:40,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 01:05:40,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 01:05:40,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 01:05:40,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 01:05:40,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 01:05:40,903 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-03 01:05:40,932 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 01:05:40,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 01:05:40,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 01:05:40,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 01:05:40,934 INFO L138 SettingsManager]: * Use SBE=true [2020-12-03 01:05:40,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 01:05:40,935 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 01:05:40,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 01:05:40,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 01:05:40,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 01:05:40,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 01:05:40,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 01:05:40,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 01:05:40,937 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 01:05:40,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 01:05:40,937 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 01:05:40,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 01:05:40,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 01:05:40,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-03 01:05:40,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 01:05:40,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 01:05:40,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 01:05:40,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 01:05:40,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 01:05:40,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-03 01:05:40,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 01:05:40,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 01:05:40,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 01:05:40,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c07e352bcbba2d31c9106eacdc6e86cfa9e8af72 [2020-12-03 01:05:41,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 01:05:41,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 01:05:41,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 01:05:41,449 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 01:05:41,450 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 01:05:41,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0910b.c [2020-12-03 01:05:41,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/767296da1/b41682b70d2d413299f23e4e1dc60c3b/FLAG165da4459 [2020-12-03 01:05:42,338 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 01:05:42,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c [2020-12-03 01:05:42,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/767296da1/b41682b70d2d413299f23e4e1dc60c3b/FLAG165da4459 [2020-12-03 01:05:42,624 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/767296da1/b41682b70d2d413299f23e4e1dc60c3b [2020-12-03 01:05:42,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 01:05:42,635 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 01:05:42,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 01:05:42,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 01:05:42,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 01:05:42,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:05:42" (1/1) ... [2020-12-03 01:05:42,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ee09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:42, skipping insertion in model container [2020-12-03 01:05:42,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:05:42" (1/1) ... [2020-12-03 01:05:42,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 01:05:42,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 01:05:42,906 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c[3599,3612] [2020-12-03 01:05:42,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 01:05:42,924 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 01:05:42,976 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c[3599,3612] [2020-12-03 01:05:42,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 01:05:43,012 INFO L208 MainTranslator]: Completed translation [2020-12-03 01:05:43,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:43 WrapperNode [2020-12-03 01:05:43,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 01:05:43,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 01:05:43,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 01:05:43,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 01:05:43,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:43" (1/1) ... [2020-12-03 01:05:43,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:43" (1/1) ... [2020-12-03 01:05:43,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 01:05:43,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 01:05:43,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 01:05:43,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 01:05:43,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:43" (1/1) ... [2020-12-03 01:05:43,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:43" (1/1) ... [2020-12-03 01:05:43,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:43" (1/1) ... [2020-12-03 01:05:43,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:43" (1/1) ... [2020-12-03 01:05:43,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:43" (1/1) ... [2020-12-03 01:05:43,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:43" (1/1) ... [2020-12-03 01:05:43,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:43" (1/1) ... [2020-12-03 01:05:43,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 01:05:43,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 01:05:43,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 01:05:43,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 01:05:43,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 01:05:43,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 01:05:43,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 01:05:43,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-03 01:05:43,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-03 01:05:43,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-03 01:05:43,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 01:05:43,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 01:05:43,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-03 01:05:43,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 01:05:43,933 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 01:05:43,934 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-03 01:05:43,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:05:43 BoogieIcfgContainer [2020-12-03 01:05:43,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 01:05:43,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 01:05:43,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 01:05:43,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 01:05:43,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 01:05:42" (1/3) ... [2020-12-03 01:05:43,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c79b459 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 01:05:43, skipping insertion in model container [2020-12-03 01:05:43,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:43" (2/3) ... [2020-12-03 01:05:43,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c79b459 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 01:05:43, skipping insertion in model container [2020-12-03 01:05:43,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:05:43" (3/3) ... [2020-12-03 01:05:43,954 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910b.c [2020-12-03 01:05:43,971 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 01:05:43,976 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 01:05:43,991 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-03 01:05:44,022 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 01:05:44,022 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 01:05:44,022 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 01:05:44,022 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 01:05:44,022 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 01:05:44,022 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 01:05:44,023 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 01:05:44,023 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 01:05:44,041 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-12-03 01:05:44,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 01:05:44,048 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:05:44,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:05:44,049 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:05:44,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:05:44,057 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2020-12-03 01:05:44,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-03 01:05:44,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979963600] [2020-12-03 01:05:44,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 01:05:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:05:44,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:05:44,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979963600] [2020-12-03 01:05:44,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:05:44,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 01:05:44,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800246918] [2020-12-03 01:05:44,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-03 01:05:44,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-03 01:05:44,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-03 01:05:44,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 01:05:44,282 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2020-12-03 01:05:44,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:05:44,307 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2020-12-03 01:05:44,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-03 01:05:44,309 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-03 01:05:44,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:05:44,322 INFO L225 Difference]: With dead ends: 62 [2020-12-03 01:05:44,322 INFO L226 Difference]: Without dead ends: 29 [2020-12-03 01:05:44,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 01:05:44,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-03 01:05:44,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-03 01:05:44,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-03 01:05:44,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-12-03 01:05:44,374 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2020-12-03 01:05:44,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:05:44,375 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-12-03 01:05:44,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-03 01:05:44,375 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-12-03 01:05:44,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-03 01:05:44,376 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:05:44,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:05:44,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 01:05:44,377 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:05:44,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:05:44,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2020-12-03 01:05:44,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-03 01:05:44,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371882507] [2020-12-03 01:05:44,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 01:05:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 01:05:44,533 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 01:05:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 01:05:44,614 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 01:05:44,678 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-03 01:05:44,678 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-03 01:05:44,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-03 01:05:44,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 01:05:44 BoogieIcfgContainer [2020-12-03 01:05:44,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 01:05:44,754 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 01:05:44,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 01:05:44,755 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 01:05:44,756 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:05:43" (3/4) ... [2020-12-03 01:05:44,760 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-03 01:05:44,761 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 01:05:44,764 INFO L168 Benchmark]: Toolchain (without parser) took 2127.87 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.5 MB in the beginning and 25.5 MB in the end (delta: -7.0 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-12-03 01:05:44,765 INFO L168 Benchmark]: CDTParser took 0.91 ms. Allocated memory is still 41.9 MB. Free memory is still 19.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 01:05:44,766 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.33 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.3 MB in the beginning and 25.9 MB in the end (delta: -7.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-03 01:05:44,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.77 ms. Allocated memory is still 52.4 MB. Free memory was 25.9 MB in the beginning and 23.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 01:05:44,768 INFO L168 Benchmark]: Boogie Preprocessor took 99.31 ms. Allocated memory is still 52.4 MB. Free memory was 23.8 MB in the beginning and 35.7 MB in the end (delta: -11.9 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-12-03 01:05:44,769 INFO L168 Benchmark]: RCFGBuilder took 699.60 ms. Allocated memory is still 52.4 MB. Free memory was 35.7 MB in the beginning and 27.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2020-12-03 01:05:44,770 INFO L168 Benchmark]: TraceAbstraction took 808.60 ms. Allocated memory is still 52.4 MB. Free memory was 26.8 MB in the beginning and 25.8 MB in the end (delta: 953.6 kB). Peak memory consumption was 1.3 MB. Max. memory is 16.1 GB. [2020-12-03 01:05:44,771 INFO L168 Benchmark]: Witness Printer took 6.23 ms. Allocated memory is still 52.4 MB. Free memory was 25.8 MB in the beginning and 25.5 MB in the end (delta: 282.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 01:05:44,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91 ms. Allocated memory is still 41.9 MB. Free memory is still 19.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 375.33 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.3 MB in the beginning and 25.9 MB in the end (delta: -7.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 122.77 ms. Allocated memory is still 52.4 MB. Free memory was 25.9 MB in the beginning and 23.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 99.31 ms. Allocated memory is still 52.4 MB. Free memory was 23.8 MB in the beginning and 35.7 MB in the end (delta: -11.9 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 699.60 ms. Allocated memory is still 52.4 MB. Free memory was 35.7 MB in the beginning and 27.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 808.60 ms. Allocated memory is still 52.4 MB. Free memory was 26.8 MB in the beginning and 25.8 MB in the end (delta: 953.6 kB). Peak memory consumption was 1.3 MB. Max. memory is 16.1 GB. * Witness Printer took 6.23 ms. Allocated memory is still 52.4 MB. Free memory was 25.8 MB in the beginning and 25.5 MB in the end (delta: 282.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 139]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 29, overapproximation of someUnaryDOUBLEoperation at line 134, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L134] double x = -0.0; [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L135] double res = __ieee754_log(x); [L21] __int32_t hx, lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L138] COND TRUE !isinf_double(res) [L139] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 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=32occurred 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, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 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 0.2.0-7b2dab5 [2020-12-03 01:05:47,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 01:05:47,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 01:05:47,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-03 01:05:47,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 01:05:47,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 01:05:47,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 01:05:47,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 01:05:47,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 01:05:47,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 01:05:47,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 01:05:47,651 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 01:05:47,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 01:05:47,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 01:05:47,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 01:05:47,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 01:05:47,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-03 01:05:47,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 01:05:47,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 01:05:47,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 01:05:47,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 01:05:47,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 01:05:47,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 01:05:47,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 01:05:47,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 01:05:47,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 01:05:47,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 01:05:47,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 01:05:47,694 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-03 01:05:47,757 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 01:05:47,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 01:05:47,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 01:05:47,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 01:05:47,763 INFO L138 SettingsManager]: * Use SBE=true [2020-12-03 01:05:47,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 01:05:47,764 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 01:05:47,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 01:05:47,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 01:05:47,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 01:05:47,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 01:05:47,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 01:05:47,767 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-03 01:05:47,767 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-03 01:05:47,767 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 01:05:47,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 01:05:47,768 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 01:05:47,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 01:05:47,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 01:05:47,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-03 01:05:47,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 01:05:47,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 01:05:47,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 01:05:47,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 01:05:47,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 01:05:47,771 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-03 01:05:47,771 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-03 01:05:47,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 01:05:47,772 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 01:05:47,772 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 01:05:47,772 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c07e352bcbba2d31c9106eacdc6e86cfa9e8af72 [2020-12-03 01:05:48,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 01:05:48,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 01:05:48,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 01:05:48,267 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 01:05:48,268 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 01:05:48,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0910b.c [2020-12-03 01:05:48,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbf7eaaf2/03de3b1146af43199caddcbe61da7743/FLAG527098c01 [2020-12-03 01:05:49,101 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 01:05:49,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c [2020-12-03 01:05:49,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbf7eaaf2/03de3b1146af43199caddcbe61da7743/FLAG527098c01 [2020-12-03 01:05:49,385 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbf7eaaf2/03de3b1146af43199caddcbe61da7743 [2020-12-03 01:05:49,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 01:05:49,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 01:05:49,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 01:05:49,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 01:05:49,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 01:05:49,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:05:49" (1/1) ... [2020-12-03 01:05:49,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fd6c332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:49, skipping insertion in model container [2020-12-03 01:05:49,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:05:49" (1/1) ... [2020-12-03 01:05:49,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 01:05:49,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 01:05:49,753 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c[3599,3612] [2020-12-03 01:05:49,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 01:05:49,775 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 01:05:49,830 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c[3599,3612] [2020-12-03 01:05:49,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 01:05:49,861 INFO L208 MainTranslator]: Completed translation [2020-12-03 01:05:49,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:49 WrapperNode [2020-12-03 01:05:49,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 01:05:49,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 01:05:49,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 01:05:49,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 01:05:49,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:49" (1/1) ... [2020-12-03 01:05:49,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:49" (1/1) ... [2020-12-03 01:05:49,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 01:05:49,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 01:05:49,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 01:05:49,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 01:05:49,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:49" (1/1) ... [2020-12-03 01:05:49,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:49" (1/1) ... [2020-12-03 01:05:49,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:49" (1/1) ... [2020-12-03 01:05:49,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:49" (1/1) ... [2020-12-03 01:05:50,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:49" (1/1) ... [2020-12-03 01:05:50,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:49" (1/1) ... [2020-12-03 01:05:50,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:49" (1/1) ... [2020-12-03 01:05:50,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 01:05:50,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 01:05:50,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 01:05:50,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 01:05:50,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 01:05:50,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-03 01:05:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-03 01:05:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-03 01:05:50,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 01:05:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-03 01:05:50,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 01:05:50,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 01:05:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-03 01:05:50,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 01:06:17,743 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 01:06:17,744 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-03 01:06:17,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:06:17 BoogieIcfgContainer [2020-12-03 01:06:17,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 01:06:17,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 01:06:17,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 01:06:17,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 01:06:17,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 01:05:49" (1/3) ... [2020-12-03 01:06:17,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f38cdf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 01:06:17, skipping insertion in model container [2020-12-03 01:06:17,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:05:49" (2/3) ... [2020-12-03 01:06:17,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f38cdf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 01:06:17, skipping insertion in model container [2020-12-03 01:06:17,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:06:17" (3/3) ... [2020-12-03 01:06:17,757 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910b.c [2020-12-03 01:06:17,775 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 01:06:17,780 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 01:06:17,795 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-03 01:06:17,825 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 01:06:17,826 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 01:06:17,826 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 01:06:17,826 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 01:06:17,827 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 01:06:17,827 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 01:06:17,827 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 01:06:17,827 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 01:06:17,844 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-12-03 01:06:17,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 01:06:17,851 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:06:17,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:06:17,853 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:06:17,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:06:17,861 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2020-12-03 01:06:17,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:06:17,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849241158] [2020-12-03 01:06:17,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-03 01:06:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:06:18,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-03 01:06:18,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:06:18,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:06:18,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:06:18,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849241158] [2020-12-03 01:06:18,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:06:18,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 01:06:18,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754406344] [2020-12-03 01:06:18,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-03 01:06:18,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:06:18,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-03 01:06:18,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 01:06:18,975 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2020-12-03 01:06:18,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:06:18,994 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2020-12-03 01:06:18,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-03 01:06:18,996 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-03 01:06:18,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:06:19,009 INFO L225 Difference]: With dead ends: 62 [2020-12-03 01:06:19,009 INFO L226 Difference]: Without dead ends: 29 [2020-12-03 01:06:19,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 01:06:19,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-03 01:06:19,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-03 01:06:19,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-03 01:06:19,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-12-03 01:06:19,059 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2020-12-03 01:06:19,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:06:19,060 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-12-03 01:06:19,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-03 01:06:19,061 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-12-03 01:06:19,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-03 01:06:19,062 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:06:19,062 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:06:19,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-03 01:06:19,276 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:06:19,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:06:19,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2020-12-03 01:06:19,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:06:19,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585107490] [2020-12-03 01:06:19,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-03 01:06:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:06:20,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-03 01:06:20,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:06:20,528 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-03 01:06:21,094 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-12-03 01:06:21,145 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-03 01:06:21,178 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:06:21,179 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-03 01:06:21,376 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-03 01:06:21,377 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:06:21,382 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-03 01:06:21,383 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:35, output treesize:24 [2020-12-03 01:06:22,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:06:22,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:06:22,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585107490] [2020-12-03 01:06:22,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:06:22,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-03 01:06:22,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733606090] [2020-12-03 01:06:22,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-03 01:06:22,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:06:22,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-03 01:06:22,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-12-03 01:06:22,479 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand 8 states. [2020-12-03 01:06:25,926 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-03 01:06:27,006 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-03 01:06:32,704 WARN L197 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-03 01:06:33,811 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-12-03 01:06:39,288 WARN L197 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-12-03 01:07:09,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:07:09,185 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2020-12-03 01:07:09,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-03 01:07:09,185 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-12-03 01:07:09,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:07:09,187 INFO L225 Difference]: With dead ends: 52 [2020-12-03 01:07:09,187 INFO L226 Difference]: Without dead ends: 44 [2020-12-03 01:07:09,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-12-03 01:07:09,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-03 01:07:09,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 29. [2020-12-03 01:07:09,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-03 01:07:09,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2020-12-03 01:07:09,195 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 14 [2020-12-03 01:07:09,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:07:09,195 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2020-12-03 01:07:09,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-03 01:07:09,196 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2020-12-03 01:07:09,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-03 01:07:09,196 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:07:09,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:07:09,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-03 01:07:09,410 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:07:09,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:07:09,412 INFO L82 PathProgramCache]: Analyzing trace with hash 2016616349, now seen corresponding path program 1 times [2020-12-03 01:07:09,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:07:09,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873520040] [2020-12-03 01:07:09,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-03 01:07:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:07:09,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-03 01:07:09,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:07:09,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:07:09,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:07:09,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873520040] [2020-12-03 01:07:09,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:07:09,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 01:07:09,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543763289] [2020-12-03 01:07:09,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 01:07:09,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:07:09,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 01:07:09,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 01:07:09,862 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand 4 states. [2020-12-03 01:07:10,078 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-03 01:07:13,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:07:13,163 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2020-12-03 01:07:13,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 01:07:13,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-03 01:07:13,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:07:13,196 INFO L225 Difference]: With dead ends: 37 [2020-12-03 01:07:13,196 INFO L226 Difference]: Without dead ends: 16 [2020-12-03 01:07:13,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 01:07:13,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-03 01:07:13,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-03 01:07:13,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-03 01:07:13,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-12-03 01:07:13,200 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 14 [2020-12-03 01:07:13,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:07:13,200 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-12-03 01:07:13,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 01:07:13,201 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-12-03 01:07:13,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-03 01:07:13,201 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:07:13,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:07:13,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-03 01:07:13,413 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:07:13,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:07:13,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1126164636, now seen corresponding path program 1 times [2020-12-03 01:07:13,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:07:13,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595763113] [2020-12-03 01:07:13,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-03 01:07:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:07:14,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-03 01:07:14,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:07:14,608 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-12-03 01:07:14,655 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-03 01:07:14,695 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:07:14,696 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-03 01:07:14,857 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-03 01:07:14,858 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:07:14,862 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-03 01:07:14,863 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2020-12-03 01:07:15,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:07:15,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:07:15,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595763113] [2020-12-03 01:07:15,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:07:15,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 01:07:15,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147073261] [2020-12-03 01:07:15,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 01:07:15,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:07:15,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 01:07:15,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 01:07:15,033 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 4 states. [2020-12-03 01:07:15,290 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-03 01:07:15,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:07:15,320 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-12-03 01:07:15,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 01:07:15,321 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-12-03 01:07:15,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:07:15,321 INFO L225 Difference]: With dead ends: 16 [2020-12-03 01:07:15,321 INFO L226 Difference]: Without dead ends: 0 [2020-12-03 01:07:15,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 01:07:15,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-03 01:07:15,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-03 01:07:15,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-03 01:07:15,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-03 01:07:15,323 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-12-03 01:07:15,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:07:15,324 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-03 01:07:15,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 01:07:15,324 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-03 01:07:15,324 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 01:07:15,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-03 01:07:15,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-03 01:07:16,052 WARN L197 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-12-03 01:07:16,317 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-03 01:07:16,556 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-03 01:07:16,877 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-03 01:07:16,881 INFO L262 CegarLoopResult]: For program point L60(lines 60 72) no Hoare annotation was computed. [2020-12-03 01:07:16,881 INFO L262 CegarLoopResult]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2020-12-03 01:07:16,881 INFO L262 CegarLoopResult]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2020-12-03 01:07:16,881 INFO L258 CegarLoopResult]: At program point L52-2(lines 52 57) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_log_~x (fp.neg (_ +zero 11 53))) (= ~zero~0 (_ +zero 11 53)) (= ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0) ~two54_log~0)) [2020-12-03 01:07:16,881 INFO L262 CegarLoopResult]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2020-12-03 01:07:16,882 INFO L265 CegarLoopResult]: At program point L143(lines 128 144) the Hoare annotation is: true [2020-12-03 01:07:16,882 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-03 01:07:16,882 INFO L262 CegarLoopResult]: For program point L61(lines 61 62) no Hoare annotation was computed. [2020-12-03 01:07:16,882 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-03 01:07:16,884 INFO L262 CegarLoopResult]: For program point L86(lines 86 102) no Hoare annotation was computed. [2020-12-03 01:07:16,884 INFO L262 CegarLoopResult]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2020-12-03 01:07:16,884 INFO L258 CegarLoopResult]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2020-12-03 01:07:16,888 INFO L262 CegarLoopResult]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2020-12-03 01:07:16,888 INFO L262 CegarLoopResult]: For program point L87(lines 87 94) no Hoare annotation was computed. [2020-12-03 01:07:16,888 INFO L262 CegarLoopResult]: For program point L96(lines 96 101) no Hoare annotation was computed. [2020-12-03 01:07:16,888 INFO L262 CegarLoopResult]: For program point L63(lines 63 64) no Hoare annotation was computed. [2020-12-03 01:07:16,888 INFO L262 CegarLoopResult]: For program point L121(lines 121 124) no Hoare annotation was computed. [2020-12-03 01:07:16,888 INFO L262 CegarLoopResult]: For program point L88(lines 88 93) no Hoare annotation was computed. [2020-12-03 01:07:16,888 INFO L262 CegarLoopResult]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2020-12-03 01:07:16,889 INFO L258 CegarLoopResult]: At program point L22-2(lines 22 27) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_isinf_double_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|)) (= ~zero~0 (_ +zero 11 53)) (= ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0) ~two54_log~0)) [2020-12-03 01:07:16,889 INFO L262 CegarLoopResult]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2020-12-03 01:07:16,889 INFO L262 CegarLoopResult]: For program point L113(lines 113 125) no Hoare annotation was computed. [2020-12-03 01:07:16,889 INFO L262 CegarLoopResult]: For program point L138(lines 138 141) no Hoare annotation was computed. [2020-12-03 01:07:16,889 INFO L258 CegarLoopResult]: At program point L31(lines 20 32) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_isinf_double_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|)) (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|))) (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) (bvlshr (let ((.cse1 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_9|))) (bvor .cse1 (bvneg .cse1))) (_ bv31 32)))) (_ bv2146435072 32)))) (bvor .cse0 (bvneg .cse0))) (_ bv31 32))) (_ bv1 32)) |ULTIMATE.start_isinf_double_#res|))) (= ~zero~0 (_ +zero 11 53)) (= ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0) ~two54_log~0)) [2020-12-03 01:07:16,889 INFO L262 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-12-03 01:07:16,890 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-03 01:07:16,890 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2020-12-03 01:07:16,890 INFO L262 CegarLoopResult]: For program point L115(lines 115 119) no Hoare annotation was computed. [2020-12-03 01:07:16,892 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-03 01:07:16,893 INFO L258 CegarLoopResult]: At program point L124(lines 47 126) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|)) (= ~zero~0 (_ +zero 11 53)) (= ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0) ~two54_log~0)) [2020-12-03 01:07:16,893 INFO L262 CegarLoopResult]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2020-12-03 01:07:16,893 INFO L258 CegarLoopResult]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2020-12-03 01:07:16,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,908 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,914 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,915 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,915 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,915 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,916 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,916 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,916 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,916 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,918 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,918 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,931 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,931 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,931 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,932 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,933 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,934 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,934 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,934 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,934 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,935 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,935 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,935 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:16,939 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,940 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,940 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,941 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,946 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,947 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,947 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,947 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,960 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,960 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,960 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,960 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:16,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 01:07:16 BoogieIcfgContainer [2020-12-03 01:07:16,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 01:07:16,963 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 01:07:16,964 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 01:07:16,964 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 01:07:16,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:06:17" (3/4) ... [2020-12-03 01:07:16,968 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 01:07:16,983 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-12-03 01:07:16,984 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-03 01:07:16,984 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 01:07:16,985 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 01:07:17,016 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log [2020-12-03 01:07:17,017 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result)) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log [2020-12-03 01:07:17,020 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result)) && (\exists v_skolemized_q#valueAsBitvector_9 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]) && ~bvadd64(~bvneg32(~bvlshr32(~bvor32(~bvadd64(~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_9[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_9[31:0])), 31bv32))), 2146435072bv32), ~bvneg32(~bvadd64(~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_9[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_9[31:0])), 31bv32))), 2146435072bv32))), 31bv32)), 1bv32) == \result)) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log [2020-12-03 01:07:17,096 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-03 01:07:17,096 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 01:07:17,098 INFO L168 Benchmark]: Toolchain (without parser) took 87704.20 ms. Allocated memory is still 52.4 MB. Free memory was 29.2 MB in the beginning and 23.0 MB in the end (delta: 6.2 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-12-03 01:07:17,099 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 39.8 MB. Free memory was 17.9 MB in the beginning and 17.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 01:07:17,099 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.09 ms. Allocated memory is still 52.4 MB. Free memory was 29.0 MB in the beginning and 29.2 MB in the end (delta: -225.7 kB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-12-03 01:07:17,100 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.06 ms. Allocated memory is still 52.4 MB. Free memory was 29.2 MB in the beginning and 27.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 01:07:17,103 INFO L168 Benchmark]: Boogie Preprocessor took 109.23 ms. Allocated memory is still 52.4 MB. Free memory was 27.1 MB in the beginning and 25.3 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 01:07:17,103 INFO L168 Benchmark]: RCFGBuilder took 27691.43 ms. Allocated memory is still 52.4 MB. Free memory was 25.2 MB in the beginning and 27.5 MB in the end (delta: -2.3 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-12-03 01:07:17,104 INFO L168 Benchmark]: TraceAbstraction took 59214.85 ms. Allocated memory is still 52.4 MB. Free memory was 27.0 MB in the beginning and 28.6 MB in the end (delta: -1.6 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-12-03 01:07:17,104 INFO L168 Benchmark]: Witness Printer took 133.12 ms. Allocated memory is still 52.4 MB. Free memory was 28.2 MB in the beginning and 23.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-03 01:07:17,107 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 39.8 MB. Free memory was 17.9 MB in the beginning and 17.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 462.09 ms. Allocated memory is still 52.4 MB. Free memory was 29.0 MB in the beginning and 29.2 MB in the end (delta: -225.7 kB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.06 ms. Allocated memory is still 52.4 MB. Free memory was 29.2 MB in the beginning and 27.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 109.23 ms. Allocated memory is still 52.4 MB. Free memory was 27.1 MB in the beginning and 25.3 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 27691.43 ms. Allocated memory is still 52.4 MB. Free memory was 25.2 MB in the beginning and 27.5 MB in the end (delta: -2.3 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 59214.85 ms. Allocated memory is still 52.4 MB. Free memory was 27.0 MB in the beginning and 28.6 MB in the end (delta: -1.6 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Witness Printer took 133.12 ms. Allocated memory is still 52.4 MB. Free memory was 28.2 MB in the beginning and 23.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 139]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant [2020-12-03 01:07:17,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,120 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:17,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:17,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:17,121 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:17,122 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:17,122 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:17,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:17,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:17,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:17,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:17,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:17,129 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:17,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:17,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:17,131 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:17,132 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:17,132 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-03 01:07:17,132 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] Derived loop invariant: ((((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result)) && (\exists v_skolemized_q#valueAsBitvector_9 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]) && ~bvadd64(~bvneg32(~bvlshr32(~bvor32(~bvadd64(~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_9[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_9[31:0])), 31bv32))), 2146435072bv32), ~bvneg32(~bvadd64(~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_9[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_9[31:0])), 31bv32))), 2146435072bv32))), 31bv32)), 1bv32) == \result)) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant [2020-12-03 01:07:17,135 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,135 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,136 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,136 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: (x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log - InvariantResult [Line: 22]: Loop Invariant [2020-12-03 01:07:17,141 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,141 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,141 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,141 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,142 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,142 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,144 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-03 01:07:17,144 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result)) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 57.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 50.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 82 SDtfs, 41 SDslu, 153 SDs, 0 SdLazy, 63 SolverSat, 4 SolverUnsat, 18 SolverUnknown, 0 SolverNotchecked, 45.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 151 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 13 QuantifiedInterpolants, 5349 SizeOfPredicates, 22 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 30 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 correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...