/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_1121b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:07:25,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:07:25,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:07:25,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:07:25,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:07:25,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:07:25,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:07:25,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:07:25,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:07:25,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:07:25,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:07:25,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:07:25,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:07:25,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:07:25,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:07:25,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:07:25,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:07:25,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:07:25,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:07:25,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:07:25,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:07:25,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:07:25,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:07:25,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:07:25,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:07:25,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:07:25,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:07:25,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:07:25,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:07:25,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:07:25,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:07:25,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:07:25,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:07:25,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:07:25,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:07:25,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:07:25,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:07:25,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:07:25,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:07:25,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:07:25,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:07:25,667 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 [2020-10-29 09:07:25,709 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:07:25,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:07:25,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:07:25,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:07:25,715 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:07:25,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:07:25,715 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:07:25,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:07:25,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:07:25,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:07:25,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:07:25,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:07:25,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:07:25,718 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:07:25,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:07:25,718 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:07:25,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:07:25,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:07:25,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:07:25,719 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:07:25,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:07:25,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:07:25,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:07:25,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:07:25,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:07:25,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:07:25,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:07:25,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:07:25,721 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:07:25,721 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:07:26,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:07:26,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:07:26,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:07:26,135 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:07:26,135 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:07:26,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1121b.c [2020-10-29 09:07:26,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a607bf9a/32462bb41be4486b91e088a61b541cbe/FLAG5fa860e5e [2020-10-29 09:07:26,886 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:07:26,887 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1121b.c [2020-10-29 09:07:26,899 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a607bf9a/32462bb41be4486b91e088a61b541cbe/FLAG5fa860e5e [2020-10-29 09:07:27,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a607bf9a/32462bb41be4486b91e088a61b541cbe [2020-10-29 09:07:27,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:07:27,219 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:07:27,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:07:27,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:07:27,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:07:27,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:07:27" (1/1) ... [2020-10-29 09:07:27,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3105449a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:27, skipping insertion in model container [2020-10-29 09:07:27,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:07:27" (1/1) ... [2020-10-29 09:07:27,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:07:27,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:07:27,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:07:27,550 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:07:27,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:07:27,690 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:07:27,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:27 WrapperNode [2020-10-29 09:07:27,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:07:27,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:07:27,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:07:27,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:07:27,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:27" (1/1) ... [2020-10-29 09:07:27,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:27" (1/1) ... [2020-10-29 09:07:27,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:27" (1/1) ... [2020-10-29 09:07:27,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:27" (1/1) ... [2020-10-29 09:07:27,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:27" (1/1) ... [2020-10-29 09:07:27,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:27" (1/1) ... [2020-10-29 09:07:27,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:27" (1/1) ... [2020-10-29 09:07:27,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:07:27,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:07:27,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:07:27,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:07:27,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:27" (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 [2020-10-29 09:07:27,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:07:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:07:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:07:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-29 09:07:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-29 09:07:27,868 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:07:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:07:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:07:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:07:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:07:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-29 09:07:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-29 09:07:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-29 09:07:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-29 09:07:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:07:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:07:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-29 09:07:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:07:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:07:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:07:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:07:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-29 09:07:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:07:28,699 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:07:28,700 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-29 09:07:28,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:07:28 BoogieIcfgContainer [2020-10-29 09:07:28,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:07:28,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:07:28,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:07:28,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:07:28,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:07:27" (1/3) ... [2020-10-29 09:07:28,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3658fa9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:07:28, skipping insertion in model container [2020-10-29 09:07:28,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:07:27" (2/3) ... [2020-10-29 09:07:28,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3658fa9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:07:28, skipping insertion in model container [2020-10-29 09:07:28,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:07:28" (3/3) ... [2020-10-29 09:07:28,711 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2020-10-29 09:07:28,723 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:07:28,729 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:07:28,742 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:07:28,770 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:07:28,771 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:07:28,771 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:07:28,771 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:07:28,771 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:07:28,771 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:07:28,771 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:07:28,771 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:07:28,791 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-10-29 09:07:28,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-29 09:07:28,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:07:28,799 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] [2020-10-29 09:07:28,799 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:07:28,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:07:28,806 INFO L82 PathProgramCache]: Analyzing trace with hash 980170601, now seen corresponding path program 1 times [2020-10-29 09:07:28,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:07:28,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [741102367] [2020-10-29 09:07:28,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:07:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:07:28,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:29,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:29,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:07:29,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-29 09:07:29,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:07:29,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-29 09:07:29,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:07:29,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:07:29,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:07:29,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 09:07:29,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:07:29,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-29 09:07:29,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:07:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:07:29,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:29,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:07:29,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:07:29,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:07:29,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 09:07:29,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:07:29,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:07:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:07:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:07:29,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:07:29,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:07:29,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:07:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:07:29,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:29,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:29,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:07:29,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 09:07:29,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:07:29,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 09:07:29,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:07:29,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:07:29,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:07:29,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-29 09:07:29,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:07:29,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:07:29,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 09:07:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:07:29,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:07:29,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:07:29,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:07:29,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:07:29,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 09:07:29,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:07:29,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:07:29,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:07:29,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:07:29,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:07:29,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:07:29,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:07:29,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [741102367] [2020-10-29 09:07:29,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:07:29,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 09:07:29,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894575197] [2020-10-29 09:07:29,494 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 09:07:29,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:07:29,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 09:07:29,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 09:07:29,519 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 4 states. [2020-10-29 09:07:29,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:07:29,975 INFO L93 Difference]: Finished difference Result 133 states and 216 transitions. [2020-10-29 09:07:29,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-29 09:07:29,977 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-10-29 09:07:29,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:07:29,988 INFO L225 Difference]: With dead ends: 133 [2020-10-29 09:07:29,988 INFO L226 Difference]: Without dead ends: 65 [2020-10-29 09:07:29,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 09:07:30,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-29 09:07:30,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-29 09:07:30,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-29 09:07:30,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 91 transitions. [2020-10-29 09:07:30,042 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 91 transitions. Word has length 23 [2020-10-29 09:07:30,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:07:30,043 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 91 transitions. [2020-10-29 09:07:30,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 09:07:30,043 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2020-10-29 09:07:30,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-29 09:07:30,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:07:30,045 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] [2020-10-29 09:07:30,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:07:30,046 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:07:30,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:07:30,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1159049452, now seen corresponding path program 1 times [2020-10-29 09:07:30,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:07:30,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529280784] [2020-10-29 09:07:30,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:07:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 09:07:30,116 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 09:07:30,116 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 09:07:30,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:07:30,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:07:30 BoogieIcfgContainer [2020-10-29 09:07:30,140 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:07:30,143 INFO L168 Benchmark]: Toolchain (without parser) took 2927.52 ms. Allocated memory was 152.0 MB in the beginning and 189.8 MB in the end (delta: 37.7 MB). Free memory was 126.3 MB in the beginning and 147.4 MB in the end (delta: -21.0 MB). Peak memory consumption was 16.9 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:30,144 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 152.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:07:30,145 INFO L168 Benchmark]: CACSL2BoogieTranslator took 472.36 ms. Allocated memory is still 152.0 MB. Free memory was 125.7 MB in the beginning and 112.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:30,146 INFO L168 Benchmark]: Boogie Preprocessor took 70.66 ms. Allocated memory is still 152.0 MB. Free memory was 112.7 MB in the beginning and 110.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:30,146 INFO L168 Benchmark]: RCFGBuilder took 935.98 ms. Allocated memory is still 152.0 MB. Free memory was 110.2 MB in the beginning and 111.4 MB in the end (delta: -1.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:30,148 INFO L168 Benchmark]: TraceAbstraction took 1436.72 ms. Allocated memory was 152.0 MB in the beginning and 189.8 MB in the end (delta: 37.7 MB). Free memory was 110.9 MB in the beginning and 147.4 MB in the end (delta: -36.5 MB). Peak memory consumption was 1.3 MB. Max. memory is 8.0 GB. [2020-10-29 09:07:30,151 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 152.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 472.36 ms. Allocated memory is still 152.0 MB. Free memory was 125.7 MB in the beginning and 112.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 70.66 ms. Allocated memory is still 152.0 MB. Free memory was 112.7 MB in the beginning and 110.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 935.98 ms. Allocated memory is still 152.0 MB. Free memory was 110.2 MB in the beginning and 111.4 MB in the end (delta: -1.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1436.72 ms. Allocated memory was 152.0 MB in the beginning and 189.8 MB in the end (delta: 37.7 MB). Free memory was 110.9 MB in the beginning and 147.4 MB in the end (delta: -36.5 MB). Peak memory consumption was 1.3 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 46, overapproximation of someUnaryDOUBLEoperation at line 172, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L171] double x = __VERIFIER_nondet_double(); [L172] double y = -0.0; [L173] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); [L173] RET, EXPR fmod_double(x, y) [L173] double res = fmod_double(x, y); [L176] CALL, EXPR isnan_double(res) [L18] return x != x; [L176] RET, EXPR isnan_double(res) [L176] COND TRUE !isnan_double(res) [L177] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1121b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 93 SDtfs, 10 SDslu, 78 SDs, 0 SdLazy, 94 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 1606 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...