/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_0686a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:01:45,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:01:45,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:01:45,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:01:45,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:01:45,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:01:45,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:01:45,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:01:45,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:01:45,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:01:45,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:01:45,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:01:45,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:01:45,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:01:45,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:01:45,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:01:45,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:01:45,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:01:45,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:01:45,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:01:45,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:01:45,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:01:45,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:01:45,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:01:45,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:01:45,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:01:45,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:01:45,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:01:45,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:01:45,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:01:45,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:01:45,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:01:45,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:01:45,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:01:45,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:01:45,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:01:45,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:01:45,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:01:45,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:01:45,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:01:45,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:01:45,716 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 01:01:45,770 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:01:45,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:01:45,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:01:45,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:01:45,776 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:01:45,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:01:45,777 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:01:45,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:01:45,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:01:45,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:01:45,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:01:45,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:01:45,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:01:45,779 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:01:45,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:01:45,780 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:01:45,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:01:45,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:01:45,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:01:45,781 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:01:45,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:01:45,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:01:45,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:01:45,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:01:45,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:01:45,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:01:45,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:01:45,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:01:45,783 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:01:45,783 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:01:46,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:01:46,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:01:46,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:01:46,257 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:01:46,258 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:01:46,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0686a.c [2020-10-27 01:01:46,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58c0617e9/054808d4c73e4844b0652c3572896032/FLAG95c7fceba [2020-10-27 01:01:47,005 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:01:47,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0686a.c [2020-10-27 01:01:47,022 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58c0617e9/054808d4c73e4844b0652c3572896032/FLAG95c7fceba [2020-10-27 01:01:47,340 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58c0617e9/054808d4c73e4844b0652c3572896032 [2020-10-27 01:01:47,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:01:47,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:01:47,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:47,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:01:47,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:01:47,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac62b72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47, skipping insertion in model container [2020-10-27 01:01:47,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:01:47,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:01:47,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:47,766 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:01:47,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:47,883 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:01:47,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47 WrapperNode [2020-10-27 01:01:47,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:47,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:01:47,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:01:47,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:01:47,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (1/1) ... [2020-10-27 01:01:47,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:01:47,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:01:47,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:01:47,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:01:47,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:01:48,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:01:48,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:01:48,082 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:01:48,082 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 01:01:48,083 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-27 01:01:48,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-27 01:01:48,084 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:01:48,084 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:01:48,085 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:01:48,085 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:01:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:01:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 01:01:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 01:01:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 01:01:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:01:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:01:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:01:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 01:01:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-27 01:01:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-27 01:01:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:01:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:01:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:01:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 01:01:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:01:49,159 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:01:49,159 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-27 01:01:49,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:49 BoogieIcfgContainer [2020-10-27 01:01:49,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:01:49,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:01:49,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:01:49,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:01:49,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:01:47" (1/3) ... [2020-10-27 01:01:49,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d05fb07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:49, skipping insertion in model container [2020-10-27 01:01:49,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:47" (2/3) ... [2020-10-27 01:01:49,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d05fb07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:49, skipping insertion in model container [2020-10-27 01:01:49,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:49" (3/3) ... [2020-10-27 01:01:49,171 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686a.c [2020-10-27 01:01:49,184 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:01:49,190 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:01:49,204 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:01:49,233 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:01:49,233 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:01:49,233 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:01:49,234 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:01:49,234 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:01:49,234 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:01:49,234 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:01:49,234 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:01:49,254 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-10-27 01:01:49,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 01:01:49,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:49,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:01:49,263 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:49,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:49,270 INFO L82 PathProgramCache]: Analyzing trace with hash -7339331, now seen corresponding path program 1 times [2020-10-27 01:01:49,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:49,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756253366] [2020-10-27 01:01:49,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:49,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:49,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:49,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:49,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:01:49,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:01:49,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 460 [2020-10-27 01:01:49,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:49,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:49,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 01:01:49,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:49,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 01:01:50,149 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 01:01:50,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:01:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:50,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:50,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:50,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:01:50,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:50,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 01:01:50,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:50,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:50,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:01:50,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:50,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:50,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:01:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:50,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:50,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:50,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:50,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 01:01:50,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:01:50,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 01:01:50,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:50,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:50,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:01:50,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:50,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:50,313 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 01:01:50,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756253366] [2020-10-27 01:01:50,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:01:50,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 01:01:50,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721240225] [2020-10-27 01:01:50,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 01:01:50,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:01:50,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 01:01:50,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:01:50,344 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 4 states. [2020-10-27 01:01:50,505 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 01:01:50,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:01:50,955 INFO L93 Difference]: Finished difference Result 199 states and 316 transitions. [2020-10-27 01:01:50,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:01:50,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-27 01:01:50,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:01:50,969 INFO L225 Difference]: With dead ends: 199 [2020-10-27 01:01:50,969 INFO L226 Difference]: Without dead ends: 98 [2020-10-27 01:01:50,974 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 01:01:50,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-27 01:01:51,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-27 01:01:51,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-27 01:01:51,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2020-10-27 01:01:51,031 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2020-10-27 01:01:51,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:01:51,032 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2020-10-27 01:01:51,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 01:01:51,032 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2020-10-27 01:01:51,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-27 01:01:51,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:51,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:01:51,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:01:51,034 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:51,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:51,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1887591124, now seen corresponding path program 1 times [2020-10-27 01:01:51,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:51,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962021556] [2020-10-27 01:01:51,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 01:01:51,088 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 01:01:51,088 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 01:01:51,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:01:51,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:01:51 BoogieIcfgContainer [2020-10-27 01:01:51,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:01:51,127 INFO L168 Benchmark]: Toolchain (without parser) took 3778.93 ms. Allocated memory is still 152.0 MB. Free memory was 128.1 MB in the beginning and 55.8 MB in the end (delta: 72.3 MB). Peak memory consumption was 73.3 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:51,127 INFO L168 Benchmark]: CDTParser took 0.67 ms. Allocated memory is still 152.0 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:01:51,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 528.78 ms. Allocated memory is still 152.0 MB. Free memory was 127.4 MB in the beginning and 112.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:51,138 INFO L168 Benchmark]: Boogie Preprocessor took 86.46 ms. Allocated memory is still 152.0 MB. Free memory was 112.3 MB in the beginning and 109.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:51,139 INFO L168 Benchmark]: RCFGBuilder took 1188.96 ms. Allocated memory is still 152.0 MB. Free memory was 109.4 MB in the beginning and 101.4 MB in the end (delta: 8.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:51,140 INFO L168 Benchmark]: TraceAbstraction took 1959.31 ms. Allocated memory is still 152.0 MB. Free memory was 100.9 MB in the beginning and 55.8 MB in the end (delta: 45.1 MB). Peak memory consumption was 44.6 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:51,151 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67 ms. Allocated memory is still 152.0 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 528.78 ms. Allocated memory is still 152.0 MB. Free memory was 127.4 MB in the beginning and 112.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 86.46 ms. Allocated memory is still 152.0 MB. Free memory was 112.3 MB in the beginning and 109.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1188.96 ms. Allocated memory is still 152.0 MB. Free memory was 109.4 MB in the beginning and 101.4 MB in the end (delta: 8.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1959.31 ms. Allocated memory is still 152.0 MB. Free memory was 100.9 MB in the beginning and 55.8 MB in the end (delta: 45.1 MB). Peak memory consumption was 44.6 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 someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 257. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L252] double x = 1.0 / 0.0; [L253] double y = 1.0 / 0.0; [L255] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L255] RET, EXPR __ieee754_atan2(y, x) [L255] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != pi_o_4 [L258] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0686a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 10 SDslu, 125 SDs, 0 SdLazy, 135 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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=105occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 1836 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...