./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0470.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0470.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 9ff7db1eeded42846704563d91b80b24f7e19034 .................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0470.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 9ff7db1eeded42846704563d91b80b24f7e19034 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 15:11:25,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:11:25,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:11:25,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:11:25,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:11:25,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:11:25,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:11:26,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:11:26,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:11:26,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:11:26,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:11:26,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:11:26,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:11:26,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:11:26,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:11:26,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:11:26,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:11:26,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:11:26,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:11:26,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:11:26,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:11:26,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:11:26,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:11:26,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:11:26,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:11:26,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:11:26,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:11:26,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:11:26,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:11:26,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:11:26,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:11:26,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:11:26,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:11:26,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:11:26,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:11:26,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:11:26,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:11:26,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:11:26,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:11:26,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:11:26,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:11:26,071 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 15:11:26,131 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:11:26,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:11:26,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:11:26,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:11:26,134 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:11:26,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:11:26,135 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:11:26,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 15:11:26,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:11:26,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:11:26,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:11:26,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:11:26,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:11:26,137 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:11:26,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:11:26,138 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:11:26,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:11:26,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:11:26,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:11:26,139 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:11:26,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:11:26,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:11:26,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:11:26,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:11:26,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:11:26,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 15:11:26,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 15:11:26,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:11:26,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:11:26,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ff7db1eeded42846704563d91b80b24f7e19034 [2020-12-02 15:11:26,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:11:26,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:11:26,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:11:26,579 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:11:26,580 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:11:26,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0470.c [2020-12-02 15:11:26,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0780e08c/1d0e14ce499c40bca8f4eae4eb55fd92/FLAGb758cd60d [2020-12-02 15:11:27,387 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:11:27,390 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0470.c [2020-12-02 15:11:27,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0780e08c/1d0e14ce499c40bca8f4eae4eb55fd92/FLAGb758cd60d [2020-12-02 15:11:27,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0780e08c/1d0e14ce499c40bca8f4eae4eb55fd92 [2020-12-02 15:11:27,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:11:27,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:11:27,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:11:27,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:11:27,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:11:27,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:11:27" (1/1) ... [2020-12-02 15:11:27,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60e17524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:27, skipping insertion in model container [2020-12-02 15:11:27,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:11:27" (1/1) ... [2020-12-02 15:11:27,719 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:11:27,765 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:11:28,066 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0470.c[5751,5764] [2020-12-02 15:11:28,070 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:11:28,088 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:11:28,192 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0470.c[5751,5764] [2020-12-02 15:11:28,196 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:11:28,228 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:11:28,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:28 WrapperNode [2020-12-02 15:11:28,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:11:28,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:11:28,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:11:28,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:11:28,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:28" (1/1) ... [2020-12-02 15:11:28,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:28" (1/1) ... [2020-12-02 15:11:28,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:11:28,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:11:28,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:11:28,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:11:28,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:28" (1/1) ... [2020-12-02 15:11:28,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:28" (1/1) ... [2020-12-02 15:11:28,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:28" (1/1) ... [2020-12-02 15:11:28,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:28" (1/1) ... [2020-12-02 15:11:28,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:28" (1/1) ... [2020-12-02 15:11:28,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:28" (1/1) ... [2020-12-02 15:11:28,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:28" (1/1) ... [2020-12-02 15:11:28,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:11:28,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:11:28,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:11:28,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:11:28,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:11:28,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 15:11:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:11:28,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-02 15:11:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 15:11:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-02 15:11:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:11:28,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:11:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-02 15:11:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:11:29,345 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:11:29,346 INFO L298 CfgBuilder]: Removed 34 assume(true) statements. [2020-12-02 15:11:29,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:11:29 BoogieIcfgContainer [2020-12-02 15:11:29,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:11:29,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:11:29,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:11:29,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:11:29,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:11:27" (1/3) ... [2020-12-02 15:11:29,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1165de61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:11:29, skipping insertion in model container [2020-12-02 15:11:29,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:28" (2/3) ... [2020-12-02 15:11:29,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1165de61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:11:29, skipping insertion in model container [2020-12-02 15:11:29,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:11:29" (3/3) ... [2020-12-02 15:11:29,362 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0470.c [2020-12-02 15:11:29,379 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:11:29,383 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:11:29,398 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:11:29,480 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:11:29,480 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:11:29,480 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:11:29,480 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:11:29,480 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:11:29,480 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:11:29,480 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:11:29,481 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:11:29,510 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2020-12-02 15:11:29,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 15:11:29,516 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:11:29,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:11:29,517 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:11:29,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:11:29,527 INFO L82 PathProgramCache]: Analyzing trace with hash 2057048347, now seen corresponding path program 1 times [2020-12-02 15:11:29,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:11:29,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783497201] [2020-12-02 15:11:29,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:11:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:11:29,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:11:29,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783497201] [2020-12-02 15:11:29,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:11:29,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 15:11:29,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800233889] [2020-12-02 15:11:29,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:11:29,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 15:11:29,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:11:29,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:11:29,745 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 2 states. [2020-12-02 15:11:29,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:11:29,782 INFO L93 Difference]: Finished difference Result 206 states and 342 transitions. [2020-12-02 15:11:29,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:11:29,785 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-02 15:11:29,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:11:29,807 INFO L225 Difference]: With dead ends: 206 [2020-12-02 15:11:29,808 INFO L226 Difference]: Without dead ends: 101 [2020-12-02 15:11:29,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:11:29,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-12-02 15:11:29,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-12-02 15:11:29,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-02 15:11:29,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 146 transitions. [2020-12-02 15:11:29,868 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 146 transitions. Word has length 11 [2020-12-02 15:11:29,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:11:29,869 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 146 transitions. [2020-12-02 15:11:29,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:11:29,869 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 146 transitions. [2020-12-02 15:11:29,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 15:11:29,870 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:11:29,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:11:29,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 15:11:29,871 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:11:29,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:11:29,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1327291576, now seen corresponding path program 1 times [2020-12-02 15:11:29,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:11:29,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141010934] [2020-12-02 15:11:29,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:11:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:11:29,991 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:11:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:11:30,066 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:11:30,098 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 15:11:30,099 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 15:11:30,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 15:11:30,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:11:30 BoogieIcfgContainer [2020-12-02 15:11:30,151 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 15:11:30,152 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 15:11:30,152 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 15:11:30,152 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 15:11:30,153 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:11:29" (3/4) ... [2020-12-02 15:11:30,157 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 15:11:30,157 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 15:11:30,160 INFO L168 Benchmark]: Toolchain (without parser) took 2471.28 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 22.8 MB in the beginning and 30.7 MB in the end (delta: -7.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2020-12-02 15:11:30,161 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 46.1 MB. Free memory was 30.8 MB in the beginning and 30.7 MB in the end (delta: 35.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:11:30,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 536.29 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 22.6 MB in the beginning and 40.6 MB in the end (delta: -18.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-12-02 15:11:30,163 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.72 ms. Allocated memory is still 58.7 MB. Free memory was 40.6 MB in the beginning and 37.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:11:30,164 INFO L168 Benchmark]: Boogie Preprocessor took 64.38 ms. Allocated memory is still 58.7 MB. Free memory was 37.3 MB in the beginning and 34.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:11:30,165 INFO L168 Benchmark]: RCFGBuilder took 976.43 ms. Allocated memory is still 58.7 MB. Free memory was 34.1 MB in the beginning and 39.5 MB in the end (delta: -5.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-12-02 15:11:30,166 INFO L168 Benchmark]: TraceAbstraction took 797.18 ms. Allocated memory is still 58.7 MB. Free memory was 39.2 MB in the beginning and 31.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:11:30,166 INFO L168 Benchmark]: Witness Printer took 5.30 ms. Allocated memory is still 58.7 MB. Free memory was 31.1 MB in the beginning and 30.7 MB in the end (delta: 390.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:11:30,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 46.1 MB. Free memory was 30.8 MB in the beginning and 30.7 MB in the end (delta: 35.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 536.29 ms. Allocated memory was 46.1 MB in the beginning and 58.7 MB in the end (delta: 12.6 MB). Free memory was 22.6 MB in the beginning and 40.6 MB in the end (delta: -18.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.72 ms. Allocated memory is still 58.7 MB. Free memory was 40.6 MB in the beginning and 37.3 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.38 ms. Allocated memory is still 58.7 MB. Free memory was 37.3 MB in the beginning and 34.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 976.43 ms. Allocated memory is still 58.7 MB. Free memory was 34.1 MB in the beginning and 39.5 MB in the end (delta: -5.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 797.18 ms. Allocated memory is still 58.7 MB. Free memory was 39.2 MB in the beginning and 31.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Witness Printer took 5.30 ms. Allocated memory is still 58.7 MB. Free memory was 31.1 MB in the beginning and 30.7 MB in the end (delta: 390.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 231]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLE_SMToperation at line 138, overapproximation of bitwiseAnd at line 156, overapproximation of someBinaryArithmeticDOUBLE_SMToperation at line 174, overapproximation of someBinaryDOUBLE_SMTComparisonOperation at line 19. Possible FailurePath: [L21] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L133-L146] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L226] double x = 0.0 / 0.0; [L149] double z, p, q, r, w, s, c, df; [L150] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L152] ieee_double_shape_type gh_u; [L153] gh_u.value = (x) [L154] EXPR gh_u.parts.msw [L154] (hx) = gh_u.parts.msw [L156] ix = hx & 0x7fffffff VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L157] COND FALSE !(ix >= 0x3ff00000) VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L172] COND TRUE ix < 0x3fe00000 VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L173] COND TRUE ix <= 0x3c600000 [L174] return pio2_hi_acos + pio2_lo_acos; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L227] double res = __ieee754_acos(x); [L19] return x != x; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L230] COND TRUE !isnan_double(res) [L231] reach_error() VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 104 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: 149 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=104occurred 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-2880296 [2020-12-02 15:11:32,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:11:32,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:11:33,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:11:33,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:11:33,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:11:33,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:11:33,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:11:33,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:11:33,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:11:33,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:11:33,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:11:33,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:11:33,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:11:33,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:11:33,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:11:33,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:11:33,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:11:33,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:11:33,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:11:33,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:11:33,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:11:33,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:11:33,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:11:33,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:11:33,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:11:33,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:11:33,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:11:33,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:11:33,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:11:33,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:11:33,099 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:11:33,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:11:33,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:11:33,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:11:33,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:11:33,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:11:33,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:11:33,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:11:33,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:11:33,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:11:33,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 15:11:33,170 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:11:33,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:11:33,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:11:33,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:11:33,175 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:11:33,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:11:33,175 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:11:33,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:11:33,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:11:33,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:11:33,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:11:33,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:11:33,178 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 15:11:33,178 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 15:11:33,178 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:11:33,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:11:33,179 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:11:33,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:11:33,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:11:33,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:11:33,180 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:11:33,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:11:33,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:11:33,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:11:33,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:11:33,181 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:11:33,181 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 15:11:33,181 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 15:11:33,182 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:11:33,182 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:11:33,182 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 15:11:33,182 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ff7db1eeded42846704563d91b80b24f7e19034 [2020-12-02 15:11:33,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:11:33,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:11:33,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:11:33,654 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:11:33,655 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:11:33,656 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0470.c [2020-12-02 15:11:33,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b548dface/a0bd569aa0054e84bd287104ab38e5c8/FLAGebb37c79b [2020-12-02 15:11:34,515 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:11:34,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0470.c [2020-12-02 15:11:34,527 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b548dface/a0bd569aa0054e84bd287104ab38e5c8/FLAGebb37c79b [2020-12-02 15:11:34,840 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b548dface/a0bd569aa0054e84bd287104ab38e5c8 [2020-12-02 15:11:34,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:11:34,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:11:34,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:11:34,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:11:34,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:11:34,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:11:34" (1/1) ... [2020-12-02 15:11:34,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d04ab1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:34, skipping insertion in model container [2020-12-02 15:11:34,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:11:34" (1/1) ... [2020-12-02 15:11:34,872 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:11:34,922 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:11:35,265 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0470.c[5751,5764] [2020-12-02 15:11:35,271 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:11:35,317 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:11:35,442 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0470.c[5751,5764] [2020-12-02 15:11:35,443 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:11:35,476 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:11:35,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:35 WrapperNode [2020-12-02 15:11:35,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:11:35,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:11:35,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:11:35,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:11:35,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:35" (1/1) ... [2020-12-02 15:11:35,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:35" (1/1) ... [2020-12-02 15:11:35,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:11:35,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:11:35,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:11:35,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:11:35,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:35" (1/1) ... [2020-12-02 15:11:35,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:35" (1/1) ... [2020-12-02 15:11:35,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:35" (1/1) ... [2020-12-02 15:11:35,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:35" (1/1) ... [2020-12-02 15:11:35,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:35" (1/1) ... [2020-12-02 15:11:35,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:35" (1/1) ... [2020-12-02 15:11:35,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:35" (1/1) ... [2020-12-02 15:11:35,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:11:35,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:11:35,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:11:35,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:11:35,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:11:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 15:11:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-02 15:11:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-02 15:11:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 15:11:35,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:11:35,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 15:11:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:11:35,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:11:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 15:11:35,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:12:05,545 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:12:05,545 INFO L298 CfgBuilder]: Removed 34 assume(true) statements. [2020-12-02 15:12:05,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:12:05 BoogieIcfgContainer [2020-12-02 15:12:05,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:12:05,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:12:05,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:12:05,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:12:05,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:11:34" (1/3) ... [2020-12-02 15:12:05,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568ad9e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:12:05, skipping insertion in model container [2020-12-02 15:12:05,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:11:35" (2/3) ... [2020-12-02 15:12:05,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568ad9e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:12:05, skipping insertion in model container [2020-12-02 15:12:05,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:12:05" (3/3) ... [2020-12-02 15:12:05,558 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0470.c [2020-12-02 15:12:05,574 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:12:05,579 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:12:05,592 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:12:05,627 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:12:05,627 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:12:05,627 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:12:05,628 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:12:05,628 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:12:05,628 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:12:05,628 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:12:05,628 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:12:05,646 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2020-12-02 15:12:05,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 15:12:05,653 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:12:05,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:12:05,654 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:12:05,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:12:05,664 INFO L82 PathProgramCache]: Analyzing trace with hash 2057048347, now seen corresponding path program 1 times [2020-12-02 15:12:05,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:12:05,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708425720] [2020-12-02 15:12:05,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-02 15:12:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:12:07,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 15:12:07,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:12:07,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:12:07,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:12:07,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:12:07,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1708425720] [2020-12-02 15:12:07,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:12:07,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 15:12:07,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667127914] [2020-12-02 15:12:07,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:12:07,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:12:07,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:12:07,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:12:07,912 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 2 states. [2020-12-02 15:12:07,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:12:07,976 INFO L93 Difference]: Finished difference Result 206 states and 342 transitions. [2020-12-02 15:12:07,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:12:07,980 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-02 15:12:07,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:12:07,996 INFO L225 Difference]: With dead ends: 206 [2020-12-02 15:12:07,996 INFO L226 Difference]: Without dead ends: 101 [2020-12-02 15:12:08,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:12:08,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-12-02 15:12:08,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-12-02 15:12:08,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-02 15:12:08,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 146 transitions. [2020-12-02 15:12:08,077 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 146 transitions. Word has length 11 [2020-12-02 15:12:08,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:12:08,078 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 146 transitions. [2020-12-02 15:12:08,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:12:08,078 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 146 transitions. [2020-12-02 15:12:08,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 15:12:08,080 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:12:08,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:12:08,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 15:12:08,295 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:12:08,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:12:08,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1327291576, now seen corresponding path program 1 times [2020-12-02 15:12:08,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:12:08,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573031365] [2020-12-02 15:12:08,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-02 15:12:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:12:09,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-02 15:12:09,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:12:14,792 WARN L197 SmtUtils]: Spent 1.74 s on a formula simplification that was a NOOP. DAG size: 23 [2020-12-02 15:12:26,552 WARN L197 SmtUtils]: Spent 1.77 s on a formula simplification that was a NOOP. DAG size: 26 [2020-12-02 15:12:45,319 WARN L197 SmtUtils]: Spent 1.59 s on a formula simplification that was a NOOP. DAG size: 28 [2020-12-02 15:12:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:12:45,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:13:03,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:13:03,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573031365] [2020-12-02 15:13:03,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:13:03,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-12-02 15:13:03,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423744173] [2020-12-02 15:13:03,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-02 15:13:03,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:13:03,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-02 15:13:03,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=45, Unknown=9, NotChecked=0, Total=72 [2020-12-02 15:13:03,174 INFO L87 Difference]: Start difference. First operand 101 states and 146 transitions. Second operand 9 states. [2020-12-02 15:13:22,502 WARN L197 SmtUtils]: Spent 6.46 s on a formula simplification that was a NOOP. DAG size: 26 [2020-12-02 15:13:26,182 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet144_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet143_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet143_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet143_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet143_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet144_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet144_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet144_6|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start___ieee754_acos_~x) ((_ extract 62 52) c_ULTIMATE.start___ieee754_acos_~x) ((_ extract 51 0) c_ULTIMATE.start___ieee754_acos_~x))) (= (_ +zero 11 53) .cse0) (= .cse1 (_ +zero 11 53))))) (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start___ieee754_acos_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet144_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet143_6| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet143_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet143_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet143_6|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet144_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet144_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet144_6|)))) (and (= ((_ extract 63 32) ULTIMATE.start___ieee754_acos_~x) c_ULTIMATE.start___ieee754_acos_~hx~0) (= (fp.div roundNearestTiesToEven .cse2 .cse3) (fp ((_ extract 63 63) ULTIMATE.start___ieee754_acos_~x) ((_ extract 62 52) ULTIMATE.start___ieee754_acos_~x) ((_ extract 51 0) ULTIMATE.start___ieee754_acos_~x))) (= (_ +zero 11 53) .cse2) (= .cse3 (_ +zero 11 53)))))) is different from false [2020-12-02 15:13:30,259 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start___ieee754_acos_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet144_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet143_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet143_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet143_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet143_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet144_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet144_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet144_6|)))) (and (= ((_ extract 63 32) ULTIMATE.start___ieee754_acos_~x) c_ULTIMATE.start___ieee754_acos_~hx~0) (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) ULTIMATE.start___ieee754_acos_~x) ((_ extract 62 52) ULTIMATE.start___ieee754_acos_~x) ((_ extract 51 0) ULTIMATE.start___ieee754_acos_~x))) (= (_ +zero 11 53) .cse0) (= .cse1 (_ +zero 11 53))))) (exists ((ULTIMATE.start___ieee754_acos_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet144_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet143_6| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet143_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet143_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet143_6|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet144_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet144_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet144_6|)))) (and (= (fp.div roundNearestTiesToEven .cse2 .cse3) (fp ((_ extract 63 63) ULTIMATE.start___ieee754_acos_~x) ((_ extract 62 52) ULTIMATE.start___ieee754_acos_~x) ((_ extract 51 0) ULTIMATE.start___ieee754_acos_~x))) (= (_ +zero 11 53) .cse2) (= .cse3 (_ +zero 11 53)) (= (bvand (_ bv2147483647 32) ((_ extract 63 32) ULTIMATE.start___ieee754_acos_~x)) c_ULTIMATE.start___ieee754_acos_~ix~0))))) is different from false [2020-12-02 15:13:41,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:13:41,626 INFO L93 Difference]: Finished difference Result 111 states and 154 transitions. [2020-12-02 15:13:41,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-02 15:13:41,648 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2020-12-02 15:13:41,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:13:41,649 INFO L225 Difference]: With dead ends: 111 [2020-12-02 15:13:41,649 INFO L226 Difference]: Without dead ends: 20 [2020-12-02 15:13:41,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 78.0s TimeCoverageRelationStatistics Valid=27, Invalid=58, Unknown=13, NotChecked=34, Total=132 [2020-12-02 15:13:41,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-02 15:13:41,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2020-12-02 15:13:41,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-02 15:13:41,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-12-02 15:13:41,655 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 12 [2020-12-02 15:13:41,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:13:41,655 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-12-02 15:13:41,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-02 15:13:41,656 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-12-02 15:13:41,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 15:13:41,657 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:13:41,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:13:41,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 15:13:41,858 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:13:41,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:13:41,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1300627107, now seen corresponding path program 1 times [2020-12-02 15:13:41,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:13:41,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300252658] [2020-12-02 15:13:41,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-02 15:13:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:13:43,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-02 15:13:43,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:13:46,293 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start___ieee754_acos_~x (_ BitVec 64)) (|v_ULTIMATE.start___ieee754_acos_#t~nondet49_7| (_ BitVec 64)) (|v_ULTIMATE.start___ieee754_acos_#t~nondet50_7| (_ BitVec 64))) (let ((.cse0 (let ((.cse3 (fp ((_ extract 63 63) ULTIMATE.start___ieee754_acos_~x) ((_ extract 62 52) ULTIMATE.start___ieee754_acos_~x) ((_ extract 51 0) ULTIMATE.start___ieee754_acos_~x)))) (fp.sub roundNearestTiesToEven .cse3 .cse3))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start___ieee754_acos_#t~nondet49_7|) ((_ extract 62 52) |v_ULTIMATE.start___ieee754_acos_#t~nondet49_7|) ((_ extract 51 0) |v_ULTIMATE.start___ieee754_acos_#t~nondet49_7|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start___ieee754_acos_#t~nondet50_7|) ((_ extract 62 52) |v_ULTIMATE.start___ieee754_acos_#t~nondet50_7|) ((_ extract 51 0) |v_ULTIMATE.start___ieee754_acos_#t~nondet50_7|)))) (and (= .cse0 .cse1) (= .cse0 .cse2) (= (fp.div roundNearestTiesToEven .cse1 .cse2) (fp ((_ extract 63 63) |c_ULTIMATE.start___ieee754_acos_#res|) ((_ extract 62 52) |c_ULTIMATE.start___ieee754_acos_#res|) ((_ extract 51 0) |c_ULTIMATE.start___ieee754_acos_#res|)))))) is different from false [2020-12-02 15:13:46,881 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-02 15:13:46,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300252658] [2020-12-02 15:13:46,885 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") [2020-12-02 15:13:46,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1900596771] [2020-12-02 15:13:46,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-12-02 15:13:46,909 WARN L195 Executor]: External (cvc4 --incremental --print-success --lang smt --rewrite-divk) stderr output: (error "Error in option parsing: can't understand option `--rewrite-divk'") Please use --help to get help on command-line options. [2020-12-02 15:13:46,911 FATAL L? ?]: Ignoring exception! de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (cvc4 --incremental --print-success --lang smt --rewrite-divk)Received EOF on stdin. stderr output: (error "Error in option parsing: can't understand option `--rewrite-divk'") Please use --help to get help on command-line options. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:222) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.createProcess(Executor.java:108) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.(Executor.java:83) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.(Scriptor.java:72) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.solverbuilder.SolverBuilder.buildScript(SolverBuilder.java:149) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.solverbuilder.SolverBuilder.buildAndInitializeSolver(SolverBuilder.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCvc4.constructManagedScript(IpTcStrategyModuleCvc4.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 34 more [2020-12-02 15:13:46,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393694479] [2020-12-02 15:13:46,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-02 15:13:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:13:50,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-02 15:13:50,560 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@2828cbcc [2020-12-02 15:13:50,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:13:50,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-12-02 15:13:50,561 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-12-02 15:13:50,561 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 15:13:50,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-02 15:13:51,001 WARN L254 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-12-02 15:13:51,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:13:51 BoogieIcfgContainer [2020-12-02 15:13:51,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 15:13:51,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 15:13:51,003 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 15:13:51,003 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 15:13:51,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:12:05" (3/4) ... [2020-12-02 15:13:51,009 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 15:13:51,009 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 15:13:51,013 INFO L168 Benchmark]: Toolchain (without parser) took 136163.42 ms. Allocated memory was 39.8 MB in the beginning and 62.9 MB in the end (delta: 23.1 MB). Free memory was 16.9 MB in the beginning and 29.6 MB in the end (delta: -12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2020-12-02 15:13:51,014 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 39.8 MB. Free memory was 24.4 MB in the beginning and 24.4 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:13:51,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 624.64 ms. Allocated memory was 39.8 MB in the beginning and 52.4 MB in the end (delta: 12.6 MB). Free memory was 16.6 MB in the beginning and 30.4 MB in the end (delta: -13.8 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:13:51,018 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.26 ms. Allocated memory is still 52.4 MB. Free memory was 30.2 MB in the beginning and 25.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-02 15:13:51,026 INFO L168 Benchmark]: Boogie Preprocessor took 106.03 ms. Allocated memory is still 52.4 MB. Free memory was 25.4 MB in the beginning and 31.8 MB in the end (delta: -6.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:13:51,028 INFO L168 Benchmark]: RCFGBuilder took 29860.29 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 31.8 MB in the beginning and 38.5 MB in the end (delta: -6.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:13:51,029 INFO L168 Benchmark]: TraceAbstraction took 105452.21 ms. Allocated memory is still 62.9 MB. Free memory was 37.7 MB in the beginning and 30.0 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:13:51,030 INFO L168 Benchmark]: Witness Printer took 6.97 ms. Allocated memory is still 62.9 MB. Free memory was 30.0 MB in the beginning and 29.6 MB in the end (delta: 403.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:13:51,045 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 39.8 MB. Free memory was 24.4 MB in the beginning and 24.4 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 624.64 ms. Allocated memory was 39.8 MB in the beginning and 52.4 MB in the end (delta: 12.6 MB). Free memory was 16.6 MB in the beginning and 30.4 MB in the end (delta: -13.8 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 101.26 ms. Allocated memory is still 52.4 MB. Free memory was 30.2 MB in the beginning and 25.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 106.03 ms. Allocated memory is still 52.4 MB. Free memory was 25.4 MB in the beginning and 31.8 MB in the end (delta: -6.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 29860.29 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 31.8 MB in the beginning and 38.5 MB in the end (delta: -6.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 105452.21 ms. Allocated memory is still 62.9 MB. Free memory was 37.7 MB in the beginning and 30.0 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 6.97 ms. Allocated memory is still 62.9 MB. Free memory was 30.0 MB in the beginning and 29.6 MB in the end (delta: 403.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 231]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L21] EXPR 1.0 [L21] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L21] EXPR 1.0 [L21] EXPR 1.0e-300 [L21] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L21] 1.0e-300 [L133] EXPR 1.00000000000000000000e+00 [L133-L146] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L133] EXPR 1.00000000000000000000e+00 [L134] EXPR 3.14159265358979311600e+00 [L133-L146] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L134] EXPR 3.14159265358979311600e+00 [L135] EXPR 1.57079632679489655800e+00 [L133-L146] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L135] EXPR 1.57079632679489655800e+00 [L136] EXPR 6.12323399573676603587e-17 [L133-L146] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L136] EXPR 6.12323399573676603587e-17 [L137] EXPR 1.66666666666666657415e-01 [L133-L146] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L137] EXPR 1.66666666666666657415e-01 [L138] EXPR 3.25565818622400915405e-01 [L138] EXPR -3.25565818622400915405e-01 [L133-L146] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L138] EXPR 3.25565818622400915405e-01 [L138] EXPR -3.25565818622400915405e-01 [L139] EXPR 2.01212532134862925881e-01 [L133-L146] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L139] EXPR 2.01212532134862925881e-01 [L140] EXPR 4.00555345006794114027e-02 [L140] EXPR -4.00555345006794114027e-02 [L133-L146] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L140] EXPR -4.00555345006794114027e-02 [L140] EXPR 4.00555345006794114027e-02 [L141] EXPR 7.91534994289814532176e-04 [L133-L146] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L141] EXPR 7.91534994289814532176e-04 [L142] EXPR 3.47933107596021167570e-05 [L133-L146] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L142] EXPR 3.47933107596021167570e-05 [L143] EXPR 2.40339491173441421878e+00 [L143] EXPR -2.40339491173441421878e+00 [L133-L146] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L143] EXPR 2.40339491173441421878e+00 [L143] EXPR -2.40339491173441421878e+00 [L144] EXPR 2.02094576023350569471e+00 [L133-L146] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L144] EXPR 2.02094576023350569471e+00 [L145] EXPR 6.88283971605453293030e-01 [L145] EXPR -6.88283971605453293030e-01 [L133-L146] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L145] EXPR 6.88283971605453293030e-01 [L145] EXPR -6.88283971605453293030e-01 [L146] EXPR 7.70381505559019352791e-02 [L133-L146] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L146] 7.70381505559019352791e-02 [L226] EXPR 0.0 [L226] EXPR 0.0 [L226] EXPR 0.0 / 0.0 [L226] double x = 0.0 / 0.0; [L149] double z, p, q, r, w, s, c, df; [L150] __int32_t hx, ix; [L152] ieee_double_shape_type gh_u; [L153] gh_u.value = (x) [L154] EXPR gh_u.parts.msw [L154] (hx) = gh_u.parts.msw [L156] ix = hx & 0x7fffffff [L157] COND TRUE ix >= 0x3ff00000 [L158] __uint32_t lx; [L160] ieee_double_shape_type gl_u; [L161] gl_u.value = (x) [L162] EXPR gl_u.parts.lsw [L162] (lx) = gl_u.parts.lsw [L164] COND FALSE !(((ix - 0x3ff00000) | lx) == 0) [L170] EXPR x - x [L170] EXPR x - x [L170] EXPR (x - x) / (x - x) [L170] return (x - x) / (x - x); [L227] double res = __ieee754_acos(x); [L19] return x != x; [L230] COND TRUE !isnan_double(res) [L231] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 105.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 38.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 164 SDtfs, 10 SDslu, 77 SDs, 0 SdLazy, 17 SolverSat, 1 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 13.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 78.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 53.9s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 42 ConstructedInterpolants, 4 QuantifiedInterpolants, 2675 SizeOfPredicates, 6 NumberOfNonLiveVariables, 129 ConjunctsInSsa, 10 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...