./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/arctan_Pade.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/arctan_Pade.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 03d4f02c4d6708ec7407dd5809f77bd3b86d46b08411c69d0afecaf50bc68872 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:06:20,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:06:20,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:06:20,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:06:20,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:06:20,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:06:20,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:06:20,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:06:20,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:06:20,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:06:20,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:06:20,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:06:20,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:06:20,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:06:20,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:06:20,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:06:20,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:06:20,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:06:20,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:06:20,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:06:20,984 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:06:20,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:06:20,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:06:20,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:06:20,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:06:20,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:06:20,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:06:20,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:06:20,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:06:20,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:06:20,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:06:20,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:06:20,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:06:20,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:06:20,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:06:20,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:06:20,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:06:20,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:06:20,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:06:20,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:06:21,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:06:21,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:06:21,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 14:06:21,033 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:06:21,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:06:21,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:06:21,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:06:21,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:06:21,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:06:21,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:06:21,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:06:21,036 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:06:21,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:06:21,037 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:06:21,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 14:06:21,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:06:21,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:06:21,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:06:21,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:06:21,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:06:21,039 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:06:21,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:06:21,039 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:06:21,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:06:21,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:06:21,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:06:21,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:06:21,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:06:21,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:06:21,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:06:21,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:06:21,042 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 14:06:21,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 14:06:21,042 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:06:21,043 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:06:21,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:06:21,043 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03d4f02c4d6708ec7407dd5809f77bd3b86d46b08411c69d0afecaf50bc68872 [2022-07-13 14:06:21,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:06:21,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:06:21,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:06:21,306 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:06:21,307 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:06:21,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/arctan_Pade.c [2022-07-13 14:06:21,372 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69150c643/be21d96e6b514e008055640e2aad7a1b/FLAGc70682815 [2022-07-13 14:06:21,691 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:06:21,691 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/arctan_Pade.c [2022-07-13 14:06:21,695 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69150c643/be21d96e6b514e008055640e2aad7a1b/FLAGc70682815 [2022-07-13 14:06:22,106 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69150c643/be21d96e6b514e008055640e2aad7a1b [2022-07-13 14:06:22,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:06:22,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:06:22,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:06:22,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:06:22,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:06:22,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:06:22" (1/1) ... [2022-07-13 14:06:22,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32052821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:22, skipping insertion in model container [2022-07-13 14:06:22,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:06:22" (1/1) ... [2022-07-13 14:06:22,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:06:22,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:06:22,279 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/arctan_Pade.c[665,678] [2022-07-13 14:06:22,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:06:22,298 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:06:22,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/arctan_Pade.c[665,678] [2022-07-13 14:06:22,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:06:22,323 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:06:22,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:22 WrapperNode [2022-07-13 14:06:22,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:06:22,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:06:22,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:06:22,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:06:22,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:22" (1/1) ... [2022-07-13 14:06:22,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:22" (1/1) ... [2022-07-13 14:06:22,349 INFO L137 Inliner]: procedures = 18, calls = 15, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 50 [2022-07-13 14:06:22,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:06:22,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:06:22,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:06:22,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:06:22,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:22" (1/1) ... [2022-07-13 14:06:22,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:22" (1/1) ... [2022-07-13 14:06:22,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:22" (1/1) ... [2022-07-13 14:06:22,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:22" (1/1) ... [2022-07-13 14:06:22,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:22" (1/1) ... [2022-07-13 14:06:22,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:22" (1/1) ... [2022-07-13 14:06:22,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:22" (1/1) ... [2022-07-13 14:06:22,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:06:22,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:06:22,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:06:22,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:06:22,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:22" (1/1) ... [2022-07-13 14:06:22,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:06:22,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:06:22,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 14:06:22,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 14:06:22,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:06:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN_POS [2022-07-13 14:06:22,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN_POS [2022-07-13 14:06:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 14:06:22,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:06:22,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:06:22,450 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN_0_1 [2022-07-13 14:06:22,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN_0_1 [2022-07-13 14:06:22,508 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:06:22,509 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:06:22,622 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:06:22,637 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:06:22,637 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 14:06:22,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:06:22 BoogieIcfgContainer [2022-07-13 14:06:22,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:06:22,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:06:22,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:06:22,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:06:22,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:06:22" (1/3) ... [2022-07-13 14:06:22,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cfebc52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:06:22, skipping insertion in model container [2022-07-13 14:06:22,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:22" (2/3) ... [2022-07-13 14:06:22,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cfebc52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:06:22, skipping insertion in model container [2022-07-13 14:06:22,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:06:22" (3/3) ... [2022-07-13 14:06:22,657 INFO L111 eAbstractionObserver]: Analyzing ICFG arctan_Pade.c [2022-07-13 14:06:22,669 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:06:22,682 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:06:22,726 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:06:22,735 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@268b59d9, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7e4a1407 [2022-07-13 14:06:22,745 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:06:22,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 22 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-13 14:06:22,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-13 14:06:22,757 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:06:22,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:06:22,758 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:06:22,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:06:22,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1224452808, now seen corresponding path program 1 times [2022-07-13 14:06:22,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:06:22,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532041560] [2022-07-13 14:06:22,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:06:22,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:06:22,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:06:22,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-13 14:06:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:06:22,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 14:06:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:06:22,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:06:22,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:06:22,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532041560] [2022-07-13 14:06:22,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532041560] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:06:22,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:06:22,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:06:22,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532441276] [2022-07-13 14:06:22,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:06:22,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:06:22,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:06:23,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:06:23,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:06:23,014 INFO L87 Difference]: Start difference. First operand has 29 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 22 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 14:06:23,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:06:23,035 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2022-07-13 14:06:23,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:06:23,038 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2022-07-13 14:06:23,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:06:23,045 INFO L225 Difference]: With dead ends: 55 [2022-07-13 14:06:23,045 INFO L226 Difference]: Without dead ends: 25 [2022-07-13 14:06:23,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:06:23,051 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:06:23,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:06:23,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-07-13 14:06:23,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-07-13 14:06:23,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-13 14:06:23,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-07-13 14:06:23,097 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 20 [2022-07-13 14:06:23,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:06:23,098 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-07-13 14:06:23,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 14:06:23,099 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-07-13 14:06:23,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-13 14:06:23,100 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:06:23,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:06:23,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 14:06:23,102 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:06:23,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:06:23,104 INFO L85 PathProgramCache]: Analyzing trace with hash -769691898, now seen corresponding path program 1 times [2022-07-13 14:06:23,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:06:23,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385578276] [2022-07-13 14:06:23,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:06:23,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:06:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:06:23,151 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 14:06:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:06:23,198 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 14:06:23,199 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 14:06:23,202 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 14:06:23,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 14:06:23,209 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 14:06:23,212 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:06:23,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:06:23 BoogieIcfgContainer [2022-07-13 14:06:23,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:06:23,247 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:06:23,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:06:23,247 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:06:23,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:06:22" (3/4) ... [2022-07-13 14:06:23,250 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 14:06:23,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:06:23,252 INFO L158 Benchmark]: Toolchain (without parser) took 1141.86ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 61.5MB in the beginning and 75.0MB in the end (delta: -13.6MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2022-07-13 14:06:23,252 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 94.4MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:06:23,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.78ms. Allocated memory is still 94.4MB. Free memory was 61.3MB in the beginning and 69.9MB in the end (delta: -8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 14:06:23,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.22ms. Allocated memory is still 94.4MB. Free memory was 69.9MB in the beginning and 68.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:06:23,256 INFO L158 Benchmark]: Boogie Preprocessor took 16.17ms. Allocated memory is still 94.4MB. Free memory was 68.3MB in the beginning and 67.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:06:23,258 INFO L158 Benchmark]: RCFGBuilder took 272.46ms. Allocated memory is still 94.4MB. Free memory was 67.3MB in the beginning and 57.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-13 14:06:23,259 INFO L158 Benchmark]: TraceAbstraction took 604.74ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 57.3MB in the beginning and 75.0MB in the end (delta: -17.7MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-07-13 14:06:23,259 INFO L158 Benchmark]: Witness Printer took 3.83ms. Allocated memory is still 113.2MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:06:23,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 94.4MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.78ms. Allocated memory is still 94.4MB. Free memory was 61.3MB in the beginning and 69.9MB in the end (delta: -8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.22ms. Allocated memory is still 94.4MB. Free memory was 69.9MB in the beginning and 68.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.17ms. Allocated memory is still 94.4MB. Free memory was 68.3MB in the beginning and 67.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 272.46ms. Allocated memory is still 94.4MB. Free memory was 67.3MB in the beginning and 57.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 604.74ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 57.3MB in the beginning and 75.0MB in the end (delta: -17.7MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Witness Printer took 3.83ms. Allocated memory is still 113.2MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 17]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of someUnaryDOUBLEoperation at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 35. Possible FailurePath: [L20] const double Pi=3.141592653589793238; VAL [Pi=1570796326794896619/500000000000000000] [L47] double a, r; [L49] a = __VERIFIER_nondet_double() [L50] CALL assume_abort_if_not(a >= -1.79e308 && a <= 1.79e308) [L15] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, Pi=1570796326794896619/500000000000000000] [L50] RET assume_abort_if_not(a >= -1.79e308 && a <= 1.79e308) [L52] CALL, EXPR ARCTAN(a) [L41] COND TRUE x < 0 VAL [\old(x)=51, Pi=1570796326794896619/500000000000000000, x=51] [L41] CALL, EXPR ARCTAN_POS(-x) VAL [Pi=1570796326794896619/500000000000000000] [L35] COND TRUE x > 1. VAL [\old(x)=54, Pi=1570796326794896619/500000000000000000, x=54] [L35] CALL, EXPR ARCTAN_0_1(1. / x) VAL [Pi=1570796326794896619/500000000000000000] [L30] CALL, EXPR PADE_2_2(x) [L24] double x_2 = x*x; [L25] return 1. - x_2 / (3. + 9./5.*x_2); VAL [\old(x)=52, Pi=1570796326794896619/500000000000000000, x=52] [L30] RET, EXPR PADE_2_2(x) [L30] return x*PADE_2_2(x); [L35] RET, EXPR ARCTAN_0_1(1. / x) VAL [\old(x)=54, ARCTAN_0_1(1. / x)=49, Pi=1570796326794896619/500000000000000000, x=54] [L35] return Pi / 2. - ARCTAN_0_1(1. / x); [L41] RET, EXPR ARCTAN_POS(-x) VAL [\old(x)=51, ARCTAN_POS(-x)=50, Pi=1570796326794896619/500000000000000000, x=51] [L41] return -ARCTAN_POS(-x); [L52] RET, EXPR ARCTAN(a) [L52] r = ARCTAN(a) [L54] CALL __VERIFIER_assert(r >= -1.571 && r <= 1.571) [L17] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, Pi=1570796326794896619/500000000000000000] [L17] reach_error() VAL [\old(cond)=0, cond=0, Pi=1570796326794896619/500000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 32 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 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 [2022-07-13 14:06:23,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/arctan_Pade.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 03d4f02c4d6708ec7407dd5809f77bd3b86d46b08411c69d0afecaf50bc68872 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:06:25,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:06:25,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:06:25,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:06:25,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:06:25,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:06:25,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:06:25,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:06:25,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:06:25,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:06:25,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:06:25,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:06:25,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:06:25,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:06:25,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:06:25,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:06:25,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:06:25,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:06:25,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:06:25,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:06:25,402 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:06:25,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:06:25,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:06:25,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:06:25,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:06:25,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:06:25,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:06:25,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:06:25,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:06:25,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:06:25,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:06:25,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:06:25,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:06:25,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:06:25,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:06:25,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:06:25,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:06:25,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:06:25,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:06:25,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:06:25,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:06:25,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:06:25,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 14:06:25,456 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:06:25,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:06:25,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:06:25,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:06:25,458 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:06:25,458 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:06:25,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:06:25,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:06:25,459 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:06:25,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:06:25,460 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:06:25,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:06:25,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:06:25,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:06:25,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:06:25,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:06:25,461 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 14:06:25,462 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 14:06:25,462 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 14:06:25,462 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:06:25,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:06:25,462 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:06:25,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:06:25,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:06:25,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:06:25,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:06:25,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:06:25,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:06:25,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:06:25,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:06:25,464 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 14:06:25,464 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 14:06:25,465 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:06:25,465 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:06:25,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:06:25,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 14:06:25,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03d4f02c4d6708ec7407dd5809f77bd3b86d46b08411c69d0afecaf50bc68872 [2022-07-13 14:06:25,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:06:25,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:06:25,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:06:25,793 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:06:25,794 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:06:25,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/arctan_Pade.c [2022-07-13 14:06:25,846 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f0a8c234/2c57cf6038df4e7d9238b58daa7009fe/FLAGe5c979ee9 [2022-07-13 14:06:26,310 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:06:26,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/arctan_Pade.c [2022-07-13 14:06:26,317 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f0a8c234/2c57cf6038df4e7d9238b58daa7009fe/FLAGe5c979ee9 [2022-07-13 14:06:26,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f0a8c234/2c57cf6038df4e7d9238b58daa7009fe [2022-07-13 14:06:26,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:06:26,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:06:26,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:06:26,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:06:26,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:06:26,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:06:26" (1/1) ... [2022-07-13 14:06:26,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@466fac87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:26, skipping insertion in model container [2022-07-13 14:06:26,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:06:26" (1/1) ... [2022-07-13 14:06:26,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:06:26,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:06:26,947 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/arctan_Pade.c[665,678] [2022-07-13 14:06:26,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:06:26,980 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:06:26,992 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/arctan_Pade.c[665,678] [2022-07-13 14:06:27,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:06:27,026 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:06:27,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:27 WrapperNode [2022-07-13 14:06:27,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:06:27,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:06:27,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:06:27,031 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:06:27,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:27" (1/1) ... [2022-07-13 14:06:27,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:27" (1/1) ... [2022-07-13 14:06:27,087 INFO L137 Inliner]: procedures = 19, calls = 15, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 51 [2022-07-13 14:06:27,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:06:27,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:06:27,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:06:27,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:06:27,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:27" (1/1) ... [2022-07-13 14:06:27,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:27" (1/1) ... [2022-07-13 14:06:27,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:27" (1/1) ... [2022-07-13 14:06:27,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:27" (1/1) ... [2022-07-13 14:06:27,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:27" (1/1) ... [2022-07-13 14:06:27,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:27" (1/1) ... [2022-07-13 14:06:27,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:27" (1/1) ... [2022-07-13 14:06:27,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:06:27,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:06:27,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:06:27,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:06:27,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:27" (1/1) ... [2022-07-13 14:06:27,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:06:27,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:06:27,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 14:06:27,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 14:06:27,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:06:27,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 14:06:27,206 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN_POS [2022-07-13 14:06:27,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN_POS [2022-07-13 14:06:27,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:06:27,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:06:27,207 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN_0_1 [2022-07-13 14:06:27,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN_0_1 [2022-07-13 14:06:27,277 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:06:27,279 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:06:32,031 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:06:32,036 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:06:32,037 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 14:06:32,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:06:32 BoogieIcfgContainer [2022-07-13 14:06:32,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:06:32,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:06:32,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:06:32,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:06:32,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:06:26" (1/3) ... [2022-07-13 14:06:32,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44584c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:06:32, skipping insertion in model container [2022-07-13 14:06:32,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:06:27" (2/3) ... [2022-07-13 14:06:32,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44584c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:06:32, skipping insertion in model container [2022-07-13 14:06:32,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:06:32" (3/3) ... [2022-07-13 14:06:32,046 INFO L111 eAbstractionObserver]: Analyzing ICFG arctan_Pade.c [2022-07-13 14:06:32,058 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:06:32,059 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:06:32,119 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:06:32,128 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@89c8d88, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3392b9df [2022-07-13 14:06:32,128 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:06:32,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 22 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-13 14:06:32,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-13 14:06:32,139 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:06:32,140 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:06:32,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:06:32,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:06:32,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1224452808, now seen corresponding path program 1 times [2022-07-13 14:06:32,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:06:32,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992358627] [2022-07-13 14:06:32,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:06:32,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:06:32,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:06:32,163 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:06:32,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 14:06:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:06:34,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 14:06:34,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:06:34,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:06:34,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:06:34,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:06:34,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992358627] [2022-07-13 14:06:34,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992358627] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:06:34,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:06:34,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:06:34,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071115682] [2022-07-13 14:06:34,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:06:34,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:06:34,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:06:34,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:06:34,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:06:34,212 INFO L87 Difference]: Start difference. First operand has 29 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 22 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 14:06:34,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:06:34,231 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2022-07-13 14:06:34,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:06:34,233 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-07-13 14:06:34,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:06:34,240 INFO L225 Difference]: With dead ends: 55 [2022-07-13 14:06:34,240 INFO L226 Difference]: Without dead ends: 25 [2022-07-13 14:06:34,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:06:34,248 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:06:34,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:06:34,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-07-13 14:06:34,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-07-13 14:06:34,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-13 14:06:34,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-07-13 14:06:34,293 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 20 [2022-07-13 14:06:34,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:06:34,294 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-07-13 14:06:34,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 14:06:34,295 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-07-13 14:06:34,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-13 14:06:34,297 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:06:34,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:06:34,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-13 14:06:34,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:06:34,508 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:06:34,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:06:34,508 INFO L85 PathProgramCache]: Analyzing trace with hash -769691898, now seen corresponding path program 1 times [2022-07-13 14:06:34,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:06:34,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1319802257] [2022-07-13 14:06:34,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:06:34,509 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:06:34,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:06:34,515 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:06:34,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-13 14:06:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:06:45,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-13 14:06:45,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:07:01,074 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:07:07,967 WARN L833 $PredicateComparison]: unable to prove that (and (= c_~Pi~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1570796326794896619.0 500000000000000000.0))) (= (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) (let ((.cse0 (fp.mul c_currentRoundingMode |c_ARCTAN_0_1_~x#1| |c_ARCTAN_0_1_~x#1|))) (fp.div c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 3.0) (fp.mul c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 9.0) ((_ to_fp 11 53) c_currentRoundingMode 5.0)) .cse0))))) |c_ARCTAN_0_1_PADE_2_2_#res#1|) (= |c_ARCTAN_0_1_#in~x#1| |c_ARCTAN_0_1_~x#1|) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-07-13 14:07:10,280 WARN L855 $PredicateComparison]: unable to prove that (and (= c_~Pi~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1570796326794896619.0 500000000000000000.0))) (= (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) (let ((.cse0 (fp.mul c_currentRoundingMode |c_ARCTAN_0_1_~x#1| |c_ARCTAN_0_1_~x#1|))) (fp.div c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 3.0) (fp.mul c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 9.0) ((_ to_fp 11 53) c_currentRoundingMode 5.0)) .cse0))))) |c_ARCTAN_0_1_PADE_2_2_#res#1|) (= |c_ARCTAN_0_1_#in~x#1| |c_ARCTAN_0_1_~x#1|) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2022-07-13 14:07:15,429 WARN L233 SmtUtils]: Spent 5.14s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:07:25,246 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:07:27,569 WARN L833 $PredicateComparison]: unable to prove that (and (= c_~Pi~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1570796326794896619.0 500000000000000000.0))) (= |c_ARCTAN_0_1_#res#1| (fp.mul c_currentRoundingMode |c_ARCTAN_0_1_#in~x#1| (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) (let ((.cse0 (fp.mul c_currentRoundingMode |c_ARCTAN_0_1_#in~x#1| |c_ARCTAN_0_1_#in~x#1|))) (fp.div c_currentRoundingMode .cse0 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 3.0) (fp.mul c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 9.0) ((_ to_fp 11 53) c_currentRoundingMode 5.0)) .cse0))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-07-13 14:07:32,687 WARN L233 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:07:42,556 WARN L233 SmtUtils]: Spent 5.15s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:07:47,648 WARN L233 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:07:53,530 WARN L233 SmtUtils]: Spent 5.88s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:07:56,163 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((ARCTAN_POS_~x (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (= |c_ARCTAN_POS_#t~ret5| (let ((.cse0 (fp.div c_currentRoundingMode .cse1 ARCTAN_POS_~x))) (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode .cse1 (let ((.cse2 (fp.mul c_currentRoundingMode .cse0 .cse0))) (fp.div c_currentRoundingMode .cse2 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 3.0) (fp.mul c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 9.0) ((_ to_fp 11 53) c_currentRoundingMode 5.0)) .cse2)))))))) (fp.gt ARCTAN_POS_~x .cse1)))) (= c_~Pi~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1570796326794896619.0 500000000000000000.0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-07-13 14:08:01,386 WARN L233 SmtUtils]: Spent 5.19s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:08:07,342 WARN L233 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:08:09,999 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((ARCTAN_POS_~x (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (= |c_ARCTAN_POS_#res| (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode c_~Pi~0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) (let ((.cse0 (fp.div c_currentRoundingMode .cse1 ARCTAN_POS_~x))) (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode .cse1 (let ((.cse2 (fp.mul c_currentRoundingMode .cse0 .cse0))) (fp.div c_currentRoundingMode .cse2 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 3.0) (fp.mul c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 9.0) ((_ to_fp 11 53) c_currentRoundingMode 5.0)) .cse2))))))))) (fp.gt ARCTAN_POS_~x .cse1)))) (= c_~Pi~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1570796326794896619.0 500000000000000000.0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-07-13 14:08:15,176 WARN L233 SmtUtils]: Spent 5.14s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:08:21,148 WARN L233 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:08:26,438 WARN L233 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:08:32,371 WARN L233 SmtUtils]: Spent 5.93s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:08:34,988 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((ARCTAN_POS_~x (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (= (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) c_currentRoundingMode 2.0)) (let ((.cse0 (fp.div c_currentRoundingMode .cse1 ARCTAN_POS_~x))) (fp.mul c_currentRoundingMode .cse0 (fp.sub c_currentRoundingMode .cse1 (let ((.cse2 (fp.mul c_currentRoundingMode .cse0 .cse0))) (fp.div c_currentRoundingMode .cse2 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 3.0) (fp.mul c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 9.0) ((_ to_fp 11 53) c_currentRoundingMode 5.0)) .cse2)))))))) |c_ULTIMATE.start_ARCTAN_#t~ret7#1|) (fp.gt ARCTAN_POS_~x .cse1)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-07-13 14:08:40,251 WARN L233 SmtUtils]: Spent 5.23s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:08:46,218 WARN L233 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:08:48,884 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((ARCTAN_POS_~x (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (fp.gt ARCTAN_POS_~x .cse0) (= (fp.neg (fp.sub c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) c_currentRoundingMode 2.0)) (let ((.cse1 (fp.div c_currentRoundingMode .cse0 ARCTAN_POS_~x))) (fp.mul c_currentRoundingMode .cse1 (fp.sub c_currentRoundingMode .cse0 (let ((.cse2 (fp.mul c_currentRoundingMode .cse1 .cse1))) (fp.div c_currentRoundingMode .cse2 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 3.0) (fp.mul c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 9.0) ((_ to_fp 11 53) c_currentRoundingMode 5.0)) .cse2))))))))) |c_ULTIMATE.start_ARCTAN_#res#1|)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-07-13 14:08:59,337 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:09:05,360 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:09:13,141 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:09:19,139 WARN L233 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:09:25,107 WARN L233 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:09:31,086 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:09:37,070 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:09:45,654 WARN L233 SmtUtils]: Spent 5.99s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:09:51,643 WARN L233 SmtUtils]: Spent 5.99s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:09:57,612 WARN L233 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:10:03,646 WARN L233 SmtUtils]: Spent 5.99s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:10:09,630 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:10:15,588 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:10:21,648 WARN L233 SmtUtils]: Spent 6.06s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:10:27,586 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:10:33,525 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:10:39,466 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:10:42,025 WARN L833 $PredicateComparison]: unable to prove that (exists ((ARCTAN_POS_~x (_ FloatingPoint 11 53))) (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (let ((.cse2 (fp.neg (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (let ((.cse4 (fp.div roundNearestTiesToEven .cse5 ARCTAN_POS_~x))) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven .cse5 (let ((.cse6 (fp.mul roundNearestTiesToEven .cse4 .cse4))) (fp.div roundNearestTiesToEven .cse6 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 3.0) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 9.0) ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) .cse6)))))))))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1571.0 1000.0)))) (let ((.cse1 (fp.leq .cse2 .cse3)) (.cse0 (fp.geq .cse2 (fp.neg .cse3)))) (or (and .cse0 .cse1 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (and (or (not .cse1) (not .cse0)) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)))))) (fp.gt ARCTAN_POS_~x .cse5)))) is different from false [2022-07-13 14:10:44,361 WARN L855 $PredicateComparison]: unable to prove that (exists ((ARCTAN_POS_~x (_ FloatingPoint 11 53))) (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (let ((.cse2 (fp.neg (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (let ((.cse4 (fp.div roundNearestTiesToEven .cse5 ARCTAN_POS_~x))) (fp.mul roundNearestTiesToEven .cse4 (fp.sub roundNearestTiesToEven .cse5 (let ((.cse6 (fp.mul roundNearestTiesToEven .cse4 .cse4))) (fp.div roundNearestTiesToEven .cse6 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 3.0) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 9.0) ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) .cse6)))))))))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1571.0 1000.0)))) (let ((.cse1 (fp.leq .cse2 .cse3)) (.cse0 (fp.geq .cse2 (fp.neg .cse3)))) (or (and .cse0 .cse1 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (and (or (not .cse1) (not .cse0)) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)))))) (fp.gt ARCTAN_POS_~x .cse5)))) is different from true [2022-07-13 14:10:54,650 WARN L233 SmtUtils]: Spent 5.14s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:11:00,657 WARN L233 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-13 14:11:08,406 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)