/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_SUM.epf -i ../../../trunk/examples/svcomp/float-benchs/arctan_Pade.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:15:32,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:15:32,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:15:32,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:15:32,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:15:32,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:15:32,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:15:32,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:15:32,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:15:32,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:15:32,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:15:32,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:15:32,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:15:32,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:15:32,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:15:32,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:15:32,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:15:32,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:15:32,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:15:32,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:15:32,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:15:32,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:15:32,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:15:32,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:15:32,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 05:15:32,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:15:32,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:15:32,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:15:32,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:15:32,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:15:32,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:15:32,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:15:32,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:15:32,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:15:32,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:15:32,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:15:32,966 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:15:32,997 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:15:32,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:15:32,998 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:15:32,998 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:15:32,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:15:32,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:15:32,999 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:15:33,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:15:33,000 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:15:33,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:15:33,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:15:33,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:15:33,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:15:33,001 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:15:33,001 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:15:33,001 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:15:33,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:15:33,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:15:33,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:15:33,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:15:33,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:15:33,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:15:33,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:15:33,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:15:33,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:15:33,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:15:33,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:15:33,004 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:15:33,004 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:15:33,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:15:33,004 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:15:33,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:15:33,005 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:15:33,005 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:15:33,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:15:33,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:15:33,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:15:33,275 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:15:33,279 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:15:33,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/arctan_Pade.c [2022-01-11 05:15:33,338 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e29e164a4/158dddfbb27d43518f458d4d1a62c5c8/FLAG7f3b47e17 [2022-01-11 05:15:33,707 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:15:33,708 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/arctan_Pade.c [2022-01-11 05:15:33,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e29e164a4/158dddfbb27d43518f458d4d1a62c5c8/FLAG7f3b47e17 [2022-01-11 05:15:34,136 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e29e164a4/158dddfbb27d43518f458d4d1a62c5c8 [2022-01-11 05:15:34,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:15:34,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:15:34,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:15:34,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:15:34,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:15:34,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:15:34" (1/1) ... [2022-01-11 05:15:34,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bdc7580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:15:34, skipping insertion in model container [2022-01-11 05:15:34,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:15:34" (1/1) ... [2022-01-11 05:15:34,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:15:34,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:15:34,295 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] [2022-01-11 05:15:34,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:15:34,334 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:15:34,348 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] [2022-01-11 05:15:34,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:15:34,378 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:15:34,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:15:34 WrapperNode [2022-01-11 05:15:34,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:15:34,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:15:34,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:15:34,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:15:34,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:15:34" (1/1) ... [2022-01-11 05:15:34,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:15:34" (1/1) ... [2022-01-11 05:15:34,423 INFO L137 Inliner]: procedures = 19, calls = 15, calls flagged for inlining = 10, calls inlined = 15, statements flattened = 98 [2022-01-11 05:15:34,423 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:15:34,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:15:34,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:15:34,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:15:34,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:15:34" (1/1) ... [2022-01-11 05:15:34,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:15:34" (1/1) ... [2022-01-11 05:15:34,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:15:34" (1/1) ... [2022-01-11 05:15:34,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:15:34" (1/1) ... [2022-01-11 05:15:34,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:15:34" (1/1) ... [2022-01-11 05:15:34,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:15:34" (1/1) ... [2022-01-11 05:15:34,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:15:34" (1/1) ... [2022-01-11 05:15:34,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:15:34,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:15:34,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:15:34,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:15:34,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:15:34" (1/1) ... [2022-01-11 05:15:34,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:15:34,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:15:34,509 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) [2022-01-11 05:15:34,531 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 [2022-01-11 05:15:34,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:15:34,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:15:34,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:15:34,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:15:34,624 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:15:34,626 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:15:34,720 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:15:34,725 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:15:34,726 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-11 05:15:34,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:15:34 BoogieIcfgContainer [2022-01-11 05:15:34,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:15:34,735 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:15:34,736 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:15:34,737 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:15:34,739 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:15:34" (1/1) ... [2022-01-11 05:15:34,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:15:34 BasicIcfg [2022-01-11 05:15:34,810 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:15:34,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:15:34,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:15:34,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:15:34,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:15:34" (1/4) ... [2022-01-11 05:15:34,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea44f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:15:34, skipping insertion in model container [2022-01-11 05:15:34,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:15:34" (2/4) ... [2022-01-11 05:15:34,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea44f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:15:34, skipping insertion in model container [2022-01-11 05:15:34,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:15:34" (3/4) ... [2022-01-11 05:15:34,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea44f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:15:34, skipping insertion in model container [2022-01-11 05:15:34,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:15:34" (4/4) ... [2022-01-11 05:15:34,816 INFO L111 eAbstractionObserver]: Analyzing ICFG arctan_Pade.cTransformedIcfg [2022-01-11 05:15:34,830 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:15:34,831 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 05:15:34,873 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:15:34,878 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 [2022-01-11 05:15:34,879 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 05:15:34,891 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) [2022-01-11 05:15:34,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-11 05:15:34,894 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:15:34,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:15:34,895 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 05:15:34,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:15:34,899 INFO L85 PathProgramCache]: Analyzing trace with hash -547487347, now seen corresponding path program 1 times [2022-01-11 05:15:34,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:15:34,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435670784] [2022-01-11 05:15:34,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:15:34,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:15:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 05:15:35,053 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-11 05:15:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 05:15:35,115 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-11 05:15:35,118 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-11 05:15:35,120 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-11 05:15:35,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:15:35,125 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-11 05:15:35,128 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 05:15:35,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:15:35 BasicIcfg [2022-01-11 05:15:35,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 05:15:35,168 INFO L158 Benchmark]: Toolchain (without parser) took 1029.32ms. Allocated memory is still 181.4MB. Free memory was 127.0MB in the beginning and 120.3MB in the end (delta: 6.7MB). Peak memory consumption was 6.5MB. Max. memory is 8.0GB. [2022-01-11 05:15:35,169 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 181.4MB. Free memory was 143.2MB in the beginning and 143.0MB in the end (delta: 143.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 05:15:35,170 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.14ms. Allocated memory is still 181.4MB. Free memory was 126.9MB in the beginning and 152.8MB in the end (delta: -26.0MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. [2022-01-11 05:15:35,171 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.34ms. Allocated memory is still 181.4MB. Free memory was 152.8MB in the beginning and 151.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-11 05:15:35,172 INFO L158 Benchmark]: Boogie Preprocessor took 32.45ms. Allocated memory is still 181.4MB. Free memory was 151.3MB in the beginning and 149.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 05:15:35,175 INFO L158 Benchmark]: RCFGBuilder took 270.49ms. Allocated memory is still 181.4MB. Free memory was 149.7MB in the beginning and 139.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-11 05:15:35,176 INFO L158 Benchmark]: IcfgTransformer took 75.06ms. Allocated memory is still 181.4MB. Free memory was 139.2MB in the beginning and 136.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-11 05:15:35,177 INFO L158 Benchmark]: TraceAbstraction took 355.81ms. Allocated memory is still 181.4MB. Free memory was 135.5MB in the beginning and 120.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-01-11 05:15:35,183 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 181.4MB. Free memory was 143.2MB in the beginning and 143.0MB in the end (delta: 143.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 233.14ms. Allocated memory is still 181.4MB. Free memory was 126.9MB in the beginning and 152.8MB in the end (delta: -26.0MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.34ms. Allocated memory is still 181.4MB. Free memory was 152.8MB in the beginning and 151.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.45ms. Allocated memory is still 181.4MB. Free memory was 151.3MB in the beginning and 149.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 270.49ms. Allocated memory is still 181.4MB. Free memory was 149.7MB in the beginning and 139.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 75.06ms. Allocated memory is still 181.4MB. Free memory was 139.2MB in the beginning and 136.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 355.81ms. Allocated memory is still 181.4MB. Free memory was 135.5MB in the beginning and 120.3MB 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: 0.3s, 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, 0.1s 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 [2022-01-11 05:15:35,223 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...