/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0686b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:01:45,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:01:45,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:01:45,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:01:45,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:01:45,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:01:45,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:01:45,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:01:45,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:01:45,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:01:45,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:01:45,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:01:45,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:01:45,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:01:45,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:01:45,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:01:45,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:01:45,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:01:45,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:01:45,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:01:45,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:01:45,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:01:45,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:01:45,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:01:45,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:01:45,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:01:45,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:01:45,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:01:45,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:01:45,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:01:45,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:01:45,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:01:45,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:01:45,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:01:45,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:01:45,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:01:45,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:01:45,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:01:45,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:01:45,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:01:45,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:01:45,781 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 01:01:45,837 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:01:45,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:01:45,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:01:45,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:01:45,839 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:01:45,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:01:45,840 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:01:45,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:01:45,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:01:45,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:01:45,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:01:45,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:01:45,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:01:45,843 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:01:45,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:01:45,844 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:01:45,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:01:45,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:01:45,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:01:45,845 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:01:45,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:01:45,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:01:45,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:01:45,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:01:45,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:01:45,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:01:45,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:01:45,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:01:45,846 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:01:45,846 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:01:46,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:01:46,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:01:46,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:01:46,245 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:01:46,245 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:01:46,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0686b.c [2020-10-27 01:01:46,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c597a1e9/89798c3166b945d9a21bec4554f79845/FLAGe10b10d07 [2020-10-27 01:01:46,942 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:01:46,943 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0686b.c [2020-10-27 01:01:46,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c597a1e9/89798c3166b945d9a21bec4554f79845/FLAGe10b10d07 [2020-10-27 01:01:47,237 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c597a1e9/89798c3166b945d9a21bec4554f79845 [2020-10-27 01:01:47,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:01:47,251 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:01:47,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:47,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:01:47,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:01:47,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a0ef744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47, skipping insertion in model container [2020-10-27 01:01:47,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:01:47,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:01:47,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:47,597 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:01:47,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:47,745 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:01:47,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47 WrapperNode [2020-10-27 01:01:47,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:47,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:01:47,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:01:47,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:01:47,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:01:47,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:01:47,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:01:47,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:01:47,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:01:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:01:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:01:47,914 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:01:47,914 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 01:01:47,914 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-27 01:01:47,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-27 01:01:47,915 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:01:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:01:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:01:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:01:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:01:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 01:01:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 01:01:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 01:01:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:01:47,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:01:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:01:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 01:01:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-27 01:01:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-27 01:01:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:01:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:01:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:01:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 01:01:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:01:48,641 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:01:48,641 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-27 01:01:48,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:48 BoogieIcfgContainer [2020-10-27 01:01:48,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:01:48,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:01:48,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:01:48,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:01:48,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:01:47" (1/3) ... [2020-10-27 01:01:48,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e3b0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:48, skipping insertion in model container [2020-10-27 01:01:48,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (2/3) ... [2020-10-27 01:01:48,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e3b0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:48, skipping insertion in model container [2020-10-27 01:01:48,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:48" (3/3) ... [2020-10-27 01:01:48,655 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686b.c [2020-10-27 01:01:48,672 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:01:48,678 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:01:48,691 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:01:48,735 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:01:48,735 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:01:48,735 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:01:48,735 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:01:48,735 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:01:48,735 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:01:48,736 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:01:48,736 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:01:48,753 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-10-27 01:01:48,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 01:01:48,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:48,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:01:48,760 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:48,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:48,766 INFO L82 PathProgramCache]: Analyzing trace with hash -7339331, now seen corresponding path program 1 times [2020-10-27 01:01:48,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:48,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443071391] [2020-10-27 01:01:48,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:49,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:49,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:49,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:49,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:01:49,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:01:49,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 345 [2020-10-27 01:01:49,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:49,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 01:01:49,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:49,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 01:01:49,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:01:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:49,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:49,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:49,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:01:49,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:49,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 01:01:49,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:49,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:49,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:01:49,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:49,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:49,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:01:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:49,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:49,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:49,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:49,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 01:01:49,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:01:49,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 01:01:49,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:49,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:49,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:01:49,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:49,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:49,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:01:49,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443071391] [2020-10-27 01:01:49,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:01:49,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 01:01:49,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423988670] [2020-10-27 01:01:49,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 01:01:49,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:01:49,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 01:01:49,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:01:49,544 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 4 states. [2020-10-27 01:01:49,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:01:50,000 INFO L93 Difference]: Finished difference Result 199 states and 316 transitions. [2020-10-27 01:01:50,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:01:50,002 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-27 01:01:50,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:01:50,013 INFO L225 Difference]: With dead ends: 199 [2020-10-27 01:01:50,013 INFO L226 Difference]: Without dead ends: 98 [2020-10-27 01:01:50,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:01:50,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-27 01:01:50,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-27 01:01:50,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-27 01:01:50,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2020-10-27 01:01:50,074 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2020-10-27 01:01:50,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:01:50,075 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2020-10-27 01:01:50,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 01:01:50,075 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2020-10-27 01:01:50,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-27 01:01:50,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:50,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:01:50,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:01:50,077 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:50,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:50,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1887591124, now seen corresponding path program 1 times [2020-10-27 01:01:50,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:50,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682918806] [2020-10-27 01:01:50,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 01:01:50,149 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 01:01:50,150 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 01:01:50,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:01:50,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:01:50 BoogieIcfgContainer [2020-10-27 01:01:50,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:01:50,184 INFO L168 Benchmark]: Toolchain (without parser) took 2935.68 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 111.5 MB in the beginning and 138.2 MB in the end (delta: -26.7 MB). Peak memory consumption was 6.2 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:50,185 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 155.2 MB. Free memory is still 128.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:01:50,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.44 ms. Allocated memory is still 155.2 MB. Free memory was 110.9 MB in the beginning and 136.6 MB in the end (delta: -25.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:50,187 INFO L168 Benchmark]: Boogie Preprocessor took 76.67 ms. Allocated memory is still 155.2 MB. Free memory was 136.6 MB in the beginning and 133.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:50,195 INFO L168 Benchmark]: RCFGBuilder took 819.12 ms. Allocated memory is still 155.2 MB. Free memory was 133.8 MB in the beginning and 91.2 MB in the end (delta: 42.7 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:50,196 INFO L168 Benchmark]: TraceAbstraction took 1532.82 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 90.8 MB in the beginning and 138.2 MB in the end (delta: -47.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:01:50,206 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 155.2 MB. Free memory is still 128.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 491.44 ms. Allocated memory is still 155.2 MB. Free memory was 110.9 MB in the beginning and 136.6 MB in the end (delta: -25.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 76.67 ms. Allocated memory is still 155.2 MB. Free memory was 136.6 MB in the beginning and 133.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 819.12 ms. Allocated memory is still 155.2 MB. Free memory was 133.8 MB in the beginning and 91.2 MB in the end (delta: 42.7 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1532.82 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 90.8 MB in the beginning and 138.2 MB in the end (delta: -47.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 257. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L252] double x = 1.0 / 0.0; [L253] double y = -1.0 / 0.0; [L255] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L255] RET, EXPR __ieee754_atan2(y, x) [L255] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != -pi_o_4 [L258] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0686b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 10 SDslu, 125 SDs, 0 SdLazy, 135 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 1836 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...