/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=DEEPEST --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_0681a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:42:21,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:42:21,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:42:21,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:42:21,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:42:21,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:42:21,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:42:21,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:42:21,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:42:21,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:42:21,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:42:21,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:42:21,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:42:21,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:42:21,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:42:21,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:42:21,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:42:21,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:42:21,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:42:21,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:42:21,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:42:21,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:42:21,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:42:21,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:42:21,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:42:21,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:42:21,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:42:21,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:42:21,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:42:21,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:42:21,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:42:21,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:42:21,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:42:21,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:42:21,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:42:21,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:42:21,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:42:21,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:42:21,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:42:21,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:42:21,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:42:21,781 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 19:42:21,837 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:42:21,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:42:21,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:42:21,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:42:21,843 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:42:21,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:42:21,844 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:42:21,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:42:21,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:42:21,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:42:21,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:42:21,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:42:21,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:42:21,847 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:42:21,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:42:21,848 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:42:21,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:42:21,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:42:21,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:42:21,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:42:21,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:42:21,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:42:21,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:42:21,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:42:21,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:42:21,873 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:42:21,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:42:21,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:42:21,874 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:42:21,874 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:42:22,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:42:22,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:42:22,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:42:22,284 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:42:22,284 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:42:22,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0681a.c [2020-10-27 19:42:22,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c55872f7b/125c4ad9a50d4955b7ca00b1f1d51668/FLAGcf8b8433d [2020-10-27 19:42:22,936 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:42:22,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0681a.c [2020-10-27 19:42:22,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c55872f7b/125c4ad9a50d4955b7ca00b1f1d51668/FLAGcf8b8433d [2020-10-27 19:42:23,279 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c55872f7b/125c4ad9a50d4955b7ca00b1f1d51668 [2020-10-27 19:42:23,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:42:23,289 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:42:23,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:23,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:42:23,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:42:23,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:23" (1/1) ... [2020-10-27 19:42:23,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc1608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:23, skipping insertion in model container [2020-10-27 19:42:23,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:23" (1/1) ... [2020-10-27 19:42:23,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:42:23,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:42:23,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:23,603 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:42:23,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:23,716 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:42:23,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:23 WrapperNode [2020-10-27 19:42:23,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:23,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:42:23,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:42:23,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:42:23,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:23" (1/1) ... [2020-10-27 19:42:23,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:23" (1/1) ... [2020-10-27 19:42:23,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:23" (1/1) ... [2020-10-27 19:42:23,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:23" (1/1) ... [2020-10-27 19:42:23,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:23" (1/1) ... [2020-10-27 19:42:23,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:23" (1/1) ... [2020-10-27 19:42:23,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:23" (1/1) ... [2020-10-27 19:42:23,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:42:23,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:42:23,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:42:23,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:42:23,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:23" (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 19:42:23,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:42:23,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:42:23,869 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:42:23,870 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 19:42:23,870 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-27 19:42:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-27 19:42:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-10-27 19:42:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:42:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:42:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:42:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:42:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:42:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:42:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 19:42:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:42:23,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:42:23,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:42:23,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:42:23,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:42:23,875 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-27 19:42:23,876 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-27 19:42:23,876 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-10-27 19:42:23,877 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:42:23,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:42:23,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:42:23,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:42:23,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:42:24,728 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:42:24,729 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-27 19:42:24,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:24 BoogieIcfgContainer [2020-10-27 19:42:24,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:42:24,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:42:24,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:42:24,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:42:24,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:42:23" (1/3) ... [2020-10-27 19:42:24,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5a0e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:24, skipping insertion in model container [2020-10-27 19:42:24,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:23" (2/3) ... [2020-10-27 19:42:24,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5a0e80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:24, skipping insertion in model container [2020-10-27 19:42:24,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:24" (3/3) ... [2020-10-27 19:42:24,744 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681a.c [2020-10-27 19:42:24,759 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:42:24,765 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:42:24,787 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:42:24,834 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:42:24,835 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:42:24,835 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:42:24,835 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:42:24,835 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:42:24,835 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:42:24,836 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:42:24,836 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:42:24,866 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2020-10-27 19:42:24,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-27 19:42:24,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:24,905 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] [2020-10-27 19:42:24,905 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:24,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:24,918 INFO L82 PathProgramCache]: Analyzing trace with hash 760112060, now seen corresponding path program 1 times [2020-10-27 19:42:24,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:24,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642447653] [2020-10-27 19:42:24,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:25,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:25,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:25,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:25,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 19:42:25,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:25,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-10-27 19:42:25,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:25,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:25,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 19:42:25,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:25,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:42:25,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:42:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:25,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:25,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:25,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:42:25,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:42:25,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 19:42:25,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:25,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:25,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:42:25,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:25,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:25,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:42:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:25,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:25,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:25,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:25,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 19:42:25,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:25,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 19:42:25,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:25,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:25,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:42:25,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:25,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:25,693 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 19:42:25,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642447653] [2020-10-27 19:42:25,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:42:25,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:42:25,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763894341] [2020-10-27 19:42:25,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:42:25,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:42:25,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:42:25,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:42:25,720 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 4 states. [2020-10-27 19:42:26,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:42:26,407 INFO L93 Difference]: Finished difference Result 217 states and 341 transitions. [2020-10-27 19:42:26,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:42:26,409 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-27 19:42:26,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:42:26,421 INFO L225 Difference]: With dead ends: 217 [2020-10-27 19:42:26,422 INFO L226 Difference]: Without dead ends: 107 [2020-10-27 19:42:26,427 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 19:42:26,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-27 19:42:26,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-10-27 19:42:26,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-27 19:42:26,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 147 transitions. [2020-10-27 19:42:26,489 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 147 transitions. Word has length 20 [2020-10-27 19:42:26,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:42:26,490 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 147 transitions. [2020-10-27 19:42:26,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:42:26,491 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 147 transitions. [2020-10-27 19:42:26,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-27 19:42:26,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:26,492 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, 1] [2020-10-27 19:42:26,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:42:26,493 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:26,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:26,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1505631205, now seen corresponding path program 1 times [2020-10-27 19:42:26,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:26,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1910747292] [2020-10-27 19:42:26,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:42:26,562 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:42:26,562 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:42:26,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:42:26,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:42:26 BoogieIcfgContainer [2020-10-27 19:42:26,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:42:26,594 INFO L168 Benchmark]: Toolchain (without parser) took 3308.30 ms. Allocated memory was 151.0 MB in the beginning and 205.5 MB in the end (delta: 54.5 MB). Free memory was 126.3 MB in the beginning and 137.4 MB in the end (delta: -11.1 MB). Peak memory consumption was 44.5 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:26,594 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 151.0 MB. Free memory was 127.1 MB in the beginning and 126.7 MB in the end (delta: 429.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:42:26,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 425.97 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 110.5 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:26,596 INFO L168 Benchmark]: Boogie Preprocessor took 77.72 ms. Allocated memory is still 151.0 MB. Free memory was 110.5 MB in the beginning and 107.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:26,597 INFO L168 Benchmark]: RCFGBuilder took 935.56 ms. Allocated memory is still 151.0 MB. Free memory was 107.6 MB in the beginning and 62.3 MB in the end (delta: 45.3 MB). Peak memory consumption was 45.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:26,599 INFO L168 Benchmark]: TraceAbstraction took 1857.30 ms. Allocated memory was 151.0 MB in the beginning and 205.5 MB in the end (delta: 54.5 MB). Free memory was 61.9 MB in the beginning and 137.4 MB in the end (delta: -75.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:42:26,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 151.0 MB. Free memory was 127.1 MB in the beginning and 126.7 MB in the end (delta: 429.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 425.97 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 110.5 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 77.72 ms. Allocated memory is still 151.0 MB. Free memory was 110.5 MB in the beginning and 107.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 935.56 ms. Allocated memory is still 151.0 MB. Free memory was 107.6 MB in the beginning and 62.3 MB in the end (delta: 45.3 MB). Peak memory consumption was 45.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1857.30 ms. Allocated memory was 151.0 MB in the beginning and 205.5 MB in the end (delta: 54.5 MB). Free memory was 61.9 MB in the beginning and 137.4 MB in the end (delta: -75.5 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 bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 269. 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; [L265] double x = 0.0; [L266] double y = 0.0; [L267] 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; [L267] RET, EXPR __ieee754_atan2(y, x) [L267] double res = __ieee754_atan2(y, x); [L269] EXPR res == 0.0 && __signbit_double(res) == 0 [L269] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L270] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0681a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 114 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 146 SDtfs, 12 SDslu, 133 SDs, 0 SdLazy, 144 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s 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=114occurred 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, 0.4s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 1957 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...