/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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 -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0683a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 23:17:09,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 23:17:09,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 23:17:09,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 23:17:09,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 23:17:09,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 23:17:09,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 23:17:09,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 23:17:09,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 23:17:09,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 23:17:09,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 23:17:09,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 23:17:09,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 23:17:09,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 23:17:09,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 23:17:09,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 23:17:09,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 23:17:09,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 23:17:09,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 23:17:09,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 23:17:09,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 23:17:09,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 23:17:09,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 23:17:09,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 23:17:09,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 23:17:09,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 23:17:09,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 23:17:09,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 23:17:09,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 23:17:09,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 23:17:09,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 23:17:09,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 23:17:09,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 23:17:09,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 23:17:09,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 23:17:09,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 23:17:09,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 23:17:09,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 23:17:09,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 23:17:09,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 23:17:09,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 23:17:09,735 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 [2020-10-14 23:17:09,773 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 23:17:09,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 23:17:09,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 23:17:09,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 23:17:09,777 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 23:17:09,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 23:17:09,777 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 23:17:09,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 23:17:09,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 23:17:09,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 23:17:09,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 23:17:09,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 23:17:09,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 23:17:09,780 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 23:17:09,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 23:17:09,780 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 23:17:09,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 23:17:09,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 23:17:09,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 23:17:09,781 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 23:17:09,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 23:17:09,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:17:09,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 23:17:09,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 23:17:09,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 23:17:09,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 23:17:09,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 23:17:09,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 23:17:09,783 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 23:17:09,783 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 23:17:10,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 23:17:10,104 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 23:17:10,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 23:17:10,109 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 23:17:10,109 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 23:17:10,110 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0683a.c [2020-10-14 23:17:10,169 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/271730bb7/3310c54d30ab4487bf96d44d1e06d600/FLAG6d657c482 [2020-10-14 23:17:10,647 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 23:17:10,648 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0683a.c [2020-10-14 23:17:10,657 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/271730bb7/3310c54d30ab4487bf96d44d1e06d600/FLAG6d657c482 [2020-10-14 23:17:11,142 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/271730bb7/3310c54d30ab4487bf96d44d1e06d600 [2020-10-14 23:17:11,151 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 23:17:11,153 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 23:17:11,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 23:17:11,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 23:17:11,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 23:17:11,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:17:11" (1/1) ... [2020-10-14 23:17:11,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8c9761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:11, skipping insertion in model container [2020-10-14 23:17:11,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:17:11" (1/1) ... [2020-10-14 23:17:11,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 23:17:11,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 23:17:11,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:17:11,704 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 23:17:11,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:17:11,869 INFO L208 MainTranslator]: Completed translation [2020-10-14 23:17:11,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:11 WrapperNode [2020-10-14 23:17:11,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 23:17:11,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 23:17:11,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 23:17:11,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 23:17:11,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:11" (1/1) ... [2020-10-14 23:17:11,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:11" (1/1) ... [2020-10-14 23:17:11,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:11" (1/1) ... [2020-10-14 23:17:11,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:11" (1/1) ... [2020-10-14 23:17:11,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:11" (1/1) ... [2020-10-14 23:17:11,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:11" (1/1) ... [2020-10-14 23:17:11,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:11" (1/1) ... [2020-10-14 23:17:11,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 23:17:11,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 23:17:11,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 23:17:11,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 23:17:11,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:11" (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 [2020-10-14 23:17:12,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 23:17:12,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 23:17:12,024 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-14 23:17:12,024 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-14 23:17:12,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-14 23:17:12,025 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-10-14 23:17:12,025 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-14 23:17:12,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-10-14 23:17:12,025 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 23:17:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 23:17:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-14 23:17:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-14 23:17:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 23:17:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-14 23:17:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 23:17:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 23:17:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 23:17:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-14 23:17:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-14 23:17:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-14 23:17:12,027 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-10-14 23:17:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-14 23:17:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-10-14 23:17:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 23:17:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 23:17:12,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-14 23:17:12,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 23:17:12,785 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 23:17:12,785 INFO L295 CfgBuilder]: Removed 22 assume(true) statements. [2020-10-14 23:17:12,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:17:12 BoogieIcfgContainer [2020-10-14 23:17:12,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 23:17:12,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 23:17:12,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 23:17:12,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 23:17:12,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:17:11" (1/3) ... [2020-10-14 23:17:12,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6109d90e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:17:12, skipping insertion in model container [2020-10-14 23:17:12,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:11" (2/3) ... [2020-10-14 23:17:12,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6109d90e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:17:12, skipping insertion in model container [2020-10-14 23:17:12,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:17:12" (3/3) ... [2020-10-14 23:17:12,799 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683a.c [2020-10-14 23:17:12,809 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 23:17:12,817 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 23:17:12,829 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 23:17:12,854 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 23:17:12,854 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 23:17:12,854 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 23:17:12,854 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 23:17:12,855 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 23:17:12,855 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 23:17:12,855 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 23:17:12,855 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 23:17:12,880 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2020-10-14 23:17:12,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 23:17:12,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:17:12,890 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, 1, 1, 1, 1, 1, 1] [2020-10-14 23:17:12,890 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:17:12,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:17:12,897 INFO L82 PathProgramCache]: Analyzing trace with hash 466315102, now seen corresponding path program 1 times [2020-10-14 23:17:12,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:17:12,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400815135] [2020-10-14 23:17:12,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:17:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:17:13,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:17:13,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:17:13,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:17:13,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:17:13,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:17:13,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 23:17:13,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 23:17:13,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 796 [2020-10-14 23:17:13,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:17:13,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:17:13,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:17:13,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 23:17:13,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:17:13,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 23:17:13,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:17:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:17:13,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:17:14,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:17:14,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:17:14,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:17:14,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 23:17:14,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:17:14,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:17:14,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:17:14,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:17:14,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:17:14,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:17:14,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 23:17:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:17:14,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:17:14,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:17:14,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:17:14,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 23:17:14,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:17:14,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 23:17:14,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:17:14,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:17:14,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:17:14,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 23:17:14,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:17:14,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:17:14,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:17:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:17:14,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:17:14,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:17:14,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:17:14,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:17:14,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 23:17:14,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 23:17:14,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 23:17:14,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:17:14,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:17:14,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:17:14,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 23:17:14,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:17:14,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:17:14,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:17:14,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400815135] [2020-10-14 23:17:14,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:17:14,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 23:17:14,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489923653] [2020-10-14 23:17:14,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 23:17:14,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:17:14,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 23:17:14,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:17:14,149 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 5 states. [2020-10-14 23:17:14,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:17:14,708 INFO L93 Difference]: Finished difference Result 251 states and 389 transitions. [2020-10-14 23:17:14,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 23:17:14,710 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-14 23:17:14,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:17:14,722 INFO L225 Difference]: With dead ends: 251 [2020-10-14 23:17:14,722 INFO L226 Difference]: Without dead ends: 124 [2020-10-14 23:17:14,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 23:17:14,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-14 23:17:14,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-10-14 23:17:14,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-14 23:17:14,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 164 transitions. [2020-10-14 23:17:14,789 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 164 transitions. Word has length 28 [2020-10-14 23:17:14,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:17:14,789 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 164 transitions. [2020-10-14 23:17:14,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 23:17:14,790 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 164 transitions. [2020-10-14 23:17:14,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-14 23:17:14,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:17:14,792 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:17:14,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 23:17:14,792 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:17:14,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:17:14,793 INFO L82 PathProgramCache]: Analyzing trace with hash 810186703, now seen corresponding path program 1 times [2020-10-14 23:17:14,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:17:14,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398359384] [2020-10-14 23:17:14,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:17:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 23:17:14,875 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 23:17:14,875 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 23:17:14,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 23:17:14,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:17:14 BoogieIcfgContainer [2020-10-14 23:17:14,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 23:17:14,903 INFO L168 Benchmark]: Toolchain (without parser) took 3750.09 ms. Allocated memory was 148.4 MB in the beginning and 242.2 MB in the end (delta: 93.8 MB). Free memory was 104.1 MB in the beginning and 151.2 MB in the end (delta: -47.1 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. [2020-10-14 23:17:14,904 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 148.4 MB. Free memory was 123.0 MB in the beginning and 122.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 23:17:14,906 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.72 ms. Allocated memory was 148.4 MB in the beginning and 207.1 MB in the end (delta: 58.7 MB). Free memory was 103.7 MB in the beginning and 177.7 MB in the end (delta: -74.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2020-10-14 23:17:14,906 INFO L168 Benchmark]: Boogie Preprocessor took 79.97 ms. Allocated memory is still 207.1 MB. Free memory was 177.7 MB in the beginning and 174.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2020-10-14 23:17:14,907 INFO L168 Benchmark]: RCFGBuilder took 838.85 ms. Allocated memory is still 207.1 MB. Free memory was 174.0 MB in the beginning and 122.5 MB in the end (delta: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 7.1 GB. [2020-10-14 23:17:14,908 INFO L168 Benchmark]: TraceAbstraction took 2108.95 ms. Allocated memory was 207.1 MB in the beginning and 242.2 MB in the end (delta: 35.1 MB). Free memory was 122.5 MB in the beginning and 151.2 MB in the end (delta: -28.8 MB). Peak memory consumption was 6.4 MB. Max. memory is 7.1 GB. [2020-10-14 23:17:14,912 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 148.4 MB. Free memory was 123.0 MB in the beginning and 122.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 717.72 ms. Allocated memory was 148.4 MB in the beginning and 207.1 MB in the end (delta: 58.7 MB). Free memory was 103.7 MB in the beginning and 177.7 MB in the end (delta: -74.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 79.97 ms. Allocated memory is still 207.1 MB. Free memory was 177.7 MB in the beginning and 174.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 838.85 ms. Allocated memory is still 207.1 MB. Free memory was 174.0 MB in the beginning and 122.5 MB in the end (delta: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2108.95 ms. Allocated memory was 207.1 MB in the beginning and 242.2 MB in the end (delta: 35.1 MB). Free memory was 122.5 MB in the beginning and 151.2 MB in the end (delta: -28.8 MB). Peak memory consumption was 6.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 298]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryDOUBLEComparisonOperation at line 297. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] 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, }; [L60-L62] 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; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L289] double x = 1.0 / 0.0; [L290] double y = __VERIFIER_nondet_double(); [L292] CALL, EXPR isinf_double(x) [L246] __int32_t hx, lx; [L248] ieee_double_shape_type ew_u; [L249] ew_u.value = (x) [L250] EXPR ew_u.parts.msw [L250] (hx) = ew_u.parts.msw [L251] EXPR ew_u.parts.lsw [L251] (lx) = ew_u.parts.lsw [L253] hx &= 0x7fffffff [L254] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L255] hx = 0x7ff00000 - hx [L256] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L292] RET, EXPR isinf_double(x) [L292] EXPR isinf_double(x) && isfinite_double(y) [L292] CALL, EXPR isfinite_double(y) [L260] __int32_t hx; [L262] ieee_double_shape_type gh_u; [L263] gh_u.value = (x) [L264] EXPR gh_u.parts.msw [L264] (hx) = gh_u.parts.msw [L266] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L292] RET, EXPR isfinite_double(y) [L292] EXPR isinf_double(x) && isfinite_double(y) [L292] COND TRUE isinf_double(x) && isfinite_double(y) && y < 0.0 [L294] CALL, EXPR __ieee754_atan2(y, x) [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; [L294] RET, EXPR __ieee754_atan2(y, x) [L294] double res = __ieee754_atan2(y, x); [L297] EXPR res == -0.0 && __signbit_double(res) == 1 [L297] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L298] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 163 SDtfs, 14 SDslu, 301 SDs, 0 SdLazy, 185 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred 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, 1.0s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 2862 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...