/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/float-benchs/arctan_Pade.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:38:03,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:38:03,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:38:03,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 17:38:03,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 17:38:03,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 17:38:03,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 17:38:03,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 17:38:03,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 17:38:03,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 17:38:03,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 17:38:03,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 17:38:03,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:38:03,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:38:03,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:38:03,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:38:03,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:38:03,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:38:03,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:38:03,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:38:03,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:38:03,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:38:03,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:38:03,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:38:03,980 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 17:38:03,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 17:38:03,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 17:38:03,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 17:38:03,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 17:38:03,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 17:38:03,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 17:38:03,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 17:38:03,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 17:38:03,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:38:03,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:38:03,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:38:03,992 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 17:38:04,010 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:38:04,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:38:04,011 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:38:04,011 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:38:04,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:38:04,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:38:04,012 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:38:04,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:38:04,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:38:04,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:38:04,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:38:04,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:38:04,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:38:04,013 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:38:04,013 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:38:04,013 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:38:04,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:38:04,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:38:04,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:38:04,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:38:04,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:38:04,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:38:04,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:38:04,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:38:04,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:38:04,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:38:04,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:38:04,016 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:38:04,016 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:38:04,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:38:04,016 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:38:04,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:38:04,017 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:38:04,017 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:38:04,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:38:04,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:38:04,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:38:04,233 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:38:04,237 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:38:04,238 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/arctan_Pade.c [2022-01-10 17:38:04,338 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8509836b1/dfca93cb48374da3b4e2209f6f0a6211/FLAG040d737cc [2022-01-10 17:38:04,664 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:38:04,665 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/arctan_Pade.c [2022-01-10 17:38:04,669 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8509836b1/dfca93cb48374da3b4e2209f6f0a6211/FLAG040d737cc [2022-01-10 17:38:05,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8509836b1/dfca93cb48374da3b4e2209f6f0a6211 [2022-01-10 17:38:05,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:38:05,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:38:05,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:38:05,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:38:05,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:38:05,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:38:05" (1/1) ... [2022-01-10 17:38:05,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3734c581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:05, skipping insertion in model container [2022-01-10 17:38:05,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:38:05" (1/1) ... [2022-01-10 17:38:05,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:38:05,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:38:05,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/arctan_Pade.c[665,678] [2022-01-10 17:38:05,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:38:05,284 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:38:05,292 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/arctan_Pade.c[665,678] [2022-01-10 17:38:05,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:38:05,304 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:38:05,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:05 WrapperNode [2022-01-10 17:38:05,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:38:05,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:38:05,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:38:05,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:38:05,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:05" (1/1) ... [2022-01-10 17:38:05,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:05" (1/1) ... [2022-01-10 17:38:05,331 INFO L137 Inliner]: procedures = 19, calls = 15, calls flagged for inlining = 10, calls inlined = 15, statements flattened = 98 [2022-01-10 17:38:05,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:38:05,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:38:05,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:38:05,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:38:05,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:05" (1/1) ... [2022-01-10 17:38:05,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:05" (1/1) ... [2022-01-10 17:38:05,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:05" (1/1) ... [2022-01-10 17:38:05,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:05" (1/1) ... [2022-01-10 17:38:05,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:05" (1/1) ... [2022-01-10 17:38:05,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:05" (1/1) ... [2022-01-10 17:38:05,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:05" (1/1) ... [2022-01-10 17:38:05,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:38:05,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:38:05,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:38:05,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:38:05,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:05" (1/1) ... [2022-01-10 17:38:05,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:38:05,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:38:05,377 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) [2022-01-10 17:38:05,379 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 [2022-01-10 17:38:05,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:38:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:38:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:38:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:38:05,456 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:38:05,457 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:38:05,553 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:38:05,557 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:38:05,558 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 17:38:05,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:38:05 BoogieIcfgContainer [2022-01-10 17:38:05,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:38:05,559 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:38:05,560 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:38:05,565 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:38:05,567 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:38:05" (1/1) ... [2022-01-10 17:38:05,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:38:05 BasicIcfg [2022-01-10 17:38:05,639 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:38:05,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:38:05,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:38:05,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:38:05,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:38:05" (1/4) ... [2022-01-10 17:38:05,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c58a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:38:05, skipping insertion in model container [2022-01-10 17:38:05,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:38:05" (2/4) ... [2022-01-10 17:38:05,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c58a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:38:05, skipping insertion in model container [2022-01-10 17:38:05,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:38:05" (3/4) ... [2022-01-10 17:38:05,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c58a58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:38:05, skipping insertion in model container [2022-01-10 17:38:05,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:38:05" (4/4) ... [2022-01-10 17:38:05,659 INFO L111 eAbstractionObserver]: Analyzing ICFG arctan_Pade.cTransformedIcfg [2022-01-10 17:38:05,663 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:38:05,663 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 17:38:05,725 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:38:05,729 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 17:38:05,730 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 17:38:05,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 17:38:05,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 17:38:05,745 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:38:05,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:38:05,747 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 17:38:05,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:38:05,754 INFO L85 PathProgramCache]: Analyzing trace with hash -547487347, now seen corresponding path program 1 times [2022-01-10 17:38:05,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:38:05,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330078914] [2022-01-10 17:38:05,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:38:05,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:38:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 17:38:05,873 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 17:38:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 17:38:05,924 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 17:38:05,927 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 17:38:05,928 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 17:38:05,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:38:05,933 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-10 17:38:05,935 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 17:38:05,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:38:05 BasicIcfg [2022-01-10 17:38:05,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 17:38:05,967 INFO L158 Benchmark]: Toolchain (without parser) took 862.82ms. Allocated memory was 206.6MB in the beginning and 352.3MB in the end (delta: 145.8MB). Free memory was 150.3MB in the beginning and 291.0MB in the end (delta: -140.7MB). Peak memory consumption was 4.7MB. Max. memory is 8.0GB. [2022-01-10 17:38:05,968 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 206.6MB. Free memory is still 166.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 17:38:05,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.33ms. Allocated memory was 206.6MB in the beginning and 352.3MB in the end (delta: 145.8MB). Free memory was 150.1MB in the beginning and 324.6MB in the end (delta: -174.5MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. [2022-01-10 17:38:05,969 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.93ms. Allocated memory is still 352.3MB. Free memory was 324.6MB in the beginning and 321.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 17:38:05,969 INFO L158 Benchmark]: Boogie Preprocessor took 20.81ms. Allocated memory is still 352.3MB. Free memory was 321.9MB in the beginning and 320.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 17:38:05,969 INFO L158 Benchmark]: RCFGBuilder took 205.76ms. Allocated memory is still 352.3MB. Free memory was 320.9MB in the beginning and 309.2MB in the end (delta: 11.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 17:38:05,970 INFO L158 Benchmark]: IcfgTransformer took 79.72ms. Allocated memory is still 352.3MB. Free memory was 309.2MB in the beginning and 306.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 17:38:05,970 INFO L158 Benchmark]: TraceAbstraction took 325.17ms. Allocated memory is still 352.3MB. Free memory was 306.2MB in the beginning and 291.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-01-10 17:38:05,972 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 206.6MB. Free memory is still 166.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 198.33ms. Allocated memory was 206.6MB in the beginning and 352.3MB in the end (delta: 145.8MB). Free memory was 150.1MB in the beginning and 324.6MB in the end (delta: -174.5MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.93ms. Allocated memory is still 352.3MB. Free memory was 324.6MB in the beginning and 321.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.81ms. Allocated memory is still 352.3MB. Free memory was 321.9MB in the beginning and 320.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 205.76ms. Allocated memory is still 352.3MB. Free memory was 320.9MB in the beginning and 309.2MB in the end (delta: 11.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 79.72ms. Allocated memory is still 352.3MB. Free memory was 309.2MB in the beginning and 306.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 325.17ms. Allocated memory is still 352.3MB. Free memory was 306.2MB in the beginning and 291.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * 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 fp.geq at line 54, overapproximation of fp.gt at line 35, overapproximation of fp.div at line 35, overapproximation of fp.neg at line 41, overapproximation of fp.sub at line 35, overapproximation of fp.leq at line 54, overapproximation of floatingLiteral_3.141592653589793238_DOUBLE at line 20, overapproximation of fp.lt at line 41, overapproximation of fp.mul at line 30. Possible FailurePath: [L20] const double Pi=3.141592653589793238; [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] [L50] RET assume_abort_if_not(a >= -1.79e308 && a <= 1.79e308) [L52] CALL, EXPR ARCTAN(a) [L41] COND TRUE x < 0 [L41] CALL, EXPR ARCTAN_POS(-x) [L35] COND TRUE x > 1. [L35] CALL, EXPR ARCTAN_0_1(1. / x) [L30] CALL, EXPR PADE_2_2(x) [L24] double x_2 = x*x; [L25] return 1. - x_2 / (3. + 9./5.*x_2); [L30] RET, EXPR PADE_2_2(x) [L30] return x*PADE_2_2(x); [L35] RET, EXPR ARCTAN_0_1(1. / x) [L35] return Pi / 2. - ARCTAN_0_1(1. / x); [L41] RET, EXPR ARCTAN_POS(-x) [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] [L17] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2022-01-10 17:38:05,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...