/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_0662b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:01:28,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:01:28,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:01:28,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:01:28,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:01:28,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:01:28,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:01:28,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:01:28,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:01:28,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:01:28,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:01:28,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:01:28,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:01:28,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:01:28,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:01:28,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:01:28,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:01:28,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:01:28,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:01:28,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:01:28,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:01:28,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:01:28,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:01:28,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:01:28,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:01:28,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:01:28,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:01:28,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:01:28,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:01:28,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:01:28,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:01:28,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:01:28,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:01:28,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:01:28,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:01:28,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:01:28,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:01:28,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:01:28,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:01:28,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:01:28,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:01:28,762 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 01:01:28,788 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:01:28,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:01:28,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:01:28,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:01:28,790 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:01:28,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:01:28,791 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:01:28,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:01:28,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:01:28,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:01:28,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:01:28,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:01:28,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:01:28,792 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:01:28,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:01:28,792 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:01:28,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:01:28,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:01:28,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:01:28,793 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:01:28,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:01:28,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:01:28,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:01:28,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:01:28,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:01:28,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:01:28,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:01:28,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:01:28,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:01:28,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:01:29,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:01:29,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:01:29,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:01:29,179 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:01:29,179 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:01:29,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0662b.c [2020-10-27 01:01:29,258 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8437018df/f21c21f21fd24355a8380164a5e8c2a5/FLAGaa6e60062 [2020-10-27 01:01:29,854 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:01:29,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0662b.c [2020-10-27 01:01:29,875 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8437018df/f21c21f21fd24355a8380164a5e8c2a5/FLAGaa6e60062 [2020-10-27 01:01:30,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8437018df/f21c21f21fd24355a8380164a5e8c2a5 [2020-10-27 01:01:30,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:01:30,176 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:01:30,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:30,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:01:30,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:01:30,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:30" (1/1) ... [2020-10-27 01:01:30,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37358787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:30, skipping insertion in model container [2020-10-27 01:01:30,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:30" (1/1) ... [2020-10-27 01:01:30,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:01:30,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:01:30,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:30,539 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:01:30,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:30,659 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:01:30,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:30 WrapperNode [2020-10-27 01:01:30,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:30,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:01:30,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:01:30,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:01:30,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:30" (1/1) ... [2020-10-27 01:01:30,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:30" (1/1) ... [2020-10-27 01:01:30,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:30" (1/1) ... [2020-10-27 01:01:30,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:30" (1/1) ... [2020-10-27 01:01:30,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:30" (1/1) ... [2020-10-27 01:01:30,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:30" (1/1) ... [2020-10-27 01:01:30,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:30" (1/1) ... [2020-10-27 01:01:30,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:01:30,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:01:30,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:01:30,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:01:30,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:30" (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 01:01:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:01:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:01:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:01:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 01:01:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-27 01:01:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-27 01:01:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:01:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:01:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:01:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:01:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:01:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 01:01:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 01:01:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 01:01:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:01:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:01:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:01:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 01:01:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-27 01:01:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-27 01:01:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:01:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:01:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:01:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 01:01:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:01:31,706 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:01:31,706 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-27 01:01:31,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:31 BoogieIcfgContainer [2020-10-27 01:01:31,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:01:31,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:01:31,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:01:31,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:01:31,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:01:30" (1/3) ... [2020-10-27 01:01:31,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5652020e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:31, skipping insertion in model container [2020-10-27 01:01:31,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:30" (2/3) ... [2020-10-27 01:01:31,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5652020e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:31, skipping insertion in model container [2020-10-27 01:01:31,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:31" (3/3) ... [2020-10-27 01:01:31,717 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662b.c [2020-10-27 01:01:31,728 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:01:31,734 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:01:31,747 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:01:31,773 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:01:31,773 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:01:31,774 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:01:31,774 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:01:31,774 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:01:31,774 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:01:31,774 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:01:31,774 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:01:31,793 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-10-27 01:01:31,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-27 01:01:31,800 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:31,800 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 01:01:31,801 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:31,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:31,807 INFO L82 PathProgramCache]: Analyzing trace with hash 199039736, now seen corresponding path program 1 times [2020-10-27 01:01:31,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:31,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190216935] [2020-10-27 01:01:31,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:32,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:32,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:32,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:32,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 01:01:32,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:01:32,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-10-27 01:01:32,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:32,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:32,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 01:01:32,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:32,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:01:32,547 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 01:01:32,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:01:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:32,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:32,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:32,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:01:32,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:32,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-27 01:01:32,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:32,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:32,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:01:32,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:32,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:32,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 01:01:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:32,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:32,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:32,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:32,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 01:01:32,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:01:32,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 01:01:32,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:32,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:01:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:32,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:32,673 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 01:01:32,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1190216935] [2020-10-27 01:01:32,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:01:32,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 01:01:32,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538037143] [2020-10-27 01:01:32,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 01:01:32,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:01:32,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 01:01:32,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:01:32,701 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 4 states. [2020-10-27 01:01:32,869 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 01:01:33,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:01:33,344 INFO L93 Difference]: Finished difference Result 205 states and 323 transitions. [2020-10-27 01:01:33,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:01:33,347 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-27 01:01:33,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:01:33,358 INFO L225 Difference]: With dead ends: 205 [2020-10-27 01:01:33,358 INFO L226 Difference]: Without dead ends: 99 [2020-10-27 01:01:33,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:01:33,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-27 01:01:33,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-10-27 01:01:33,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-27 01:01:33,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2020-10-27 01:01:33,418 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 20 [2020-10-27 01:01:33,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:01:33,418 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2020-10-27 01:01:33,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 01:01:33,419 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2020-10-27 01:01:33,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-27 01:01:33,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:33,420 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 01:01:33,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:01:33,420 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:33,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:33,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1527493777, now seen corresponding path program 1 times [2020-10-27 01:01:33,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:33,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510747799] [2020-10-27 01:01:33,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 01:01:33,503 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 01:01:33,503 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 01:01:33,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:01:33,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:01:33 BoogieIcfgContainer [2020-10-27 01:01:33,533 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:01:33,538 INFO L168 Benchmark]: Toolchain (without parser) took 3364.31 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 50.6 MB in the end (delta: 75.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:33,539 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 77.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:01:33,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.72 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 110.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:33,547 INFO L168 Benchmark]: Boogie Preprocessor took 143.00 ms. Allocated memory is still 151.0 MB. Free memory was 110.5 MB in the beginning and 107.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:33,548 INFO L168 Benchmark]: RCFGBuilder took 899.79 ms. Allocated memory is still 151.0 MB. Free memory was 107.5 MB in the beginning and 98.8 MB in the end (delta: 8.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:33,549 INFO L168 Benchmark]: TraceAbstraction took 1823.08 ms. Allocated memory is still 151.0 MB. Free memory was 98.2 MB in the beginning and 50.6 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:33,558 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 77.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 479.72 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 110.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 143.00 ms. Allocated memory is still 151.0 MB. Free memory was 110.5 MB in the beginning and 107.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 899.79 ms. Allocated memory is still 151.0 MB. Free memory was 107.5 MB in the beginning and 98.8 MB in the end (delta: 8.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1823.08 ms. Allocated memory is still 151.0 MB. Free memory was 98.2 MB in the beginning and 50.6 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. 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 261. 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; [L253] double x = 0.0; [L254] double y = __VERIFIER_nondet_double(); [L256] COND TRUE y < 0.0 [L258] 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; [L258] RET, EXPR __ieee754_atan2(y, x) [L258] double res = __ieee754_atan2(y, x); [L261] COND TRUE res != -pi_o_2 [L262] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0662b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 140 SDtfs, 18 SDslu, 124 SDs, 0 SdLazy, 138 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred 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, 0.6s 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...