/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_0663a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:26:00,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:26:00,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:26:00,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:26:00,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:26:00,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:26:00,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:26:00,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:26:00,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:26:00,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:26:00,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:26:00,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:26:00,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:26:00,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:26:00,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:26:00,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:26:00,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:26:00,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:26:00,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:26:00,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:26:00,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:26:00,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:26:00,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:26:00,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:26:00,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:26:00,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:26:00,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:26:00,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:26:00,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:26:00,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:26:00,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:26:00,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:26:00,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:26:00,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:26:00,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:26:00,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:26:00,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:26:00,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:26:00,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:26:00,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:26:00,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:26:00,710 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 [2020-10-28 14:26:00,757 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:26:00,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:26:00,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:26:00,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:26:00,762 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:26:00,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:26:00,763 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:26:00,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:26:00,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:26:00,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:26:00,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:26:00,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:26:00,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:26:00,765 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:26:00,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:26:00,766 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:26:00,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:26:00,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:26:00,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:26:00,766 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:26:00,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:26:00,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:26:00,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:26:00,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:26:00,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:26:00,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:26:00,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:26:00,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:26:00,769 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:26:00,769 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:26:01,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:26:01,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:26:01,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:26:01,224 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:26:01,225 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:26:01,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0663a.c [2020-10-28 14:26:01,308 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/731be54ff/de218465e95d40a09e6dab131d3d6c05/FLAGb4bb7b1a9 [2020-10-28 14:26:02,099 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:26:02,100 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0663a.c [2020-10-28 14:26:02,109 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/731be54ff/de218465e95d40a09e6dab131d3d6c05/FLAGb4bb7b1a9 [2020-10-28 14:26:02,446 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/731be54ff/de218465e95d40a09e6dab131d3d6c05 [2020-10-28 14:26:02,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:26:02,460 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:26:02,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:26:02,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:26:02,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:26:02,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:26:02" (1/1) ... [2020-10-28 14:26:02,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e8b397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:02, skipping insertion in model container [2020-10-28 14:26:02,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:26:02" (1/1) ... [2020-10-28 14:26:02,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:26:02,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:26:02,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:26:02,757 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:26:02,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:26:02,873 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:26:02,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:02 WrapperNode [2020-10-28 14:26:02,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:26:02,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:26:02,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:26:02,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:26:02,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:02" (1/1) ... [2020-10-28 14:26:02,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:02" (1/1) ... [2020-10-28 14:26:02,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:02" (1/1) ... [2020-10-28 14:26:02,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:02" (1/1) ... [2020-10-28 14:26:02,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:02" (1/1) ... [2020-10-28 14:26:03,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:02" (1/1) ... [2020-10-28 14:26:03,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:02" (1/1) ... [2020-10-28 14:26:03,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:26:03,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:26:03,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:26:03,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:26:03,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:02" (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 [2020-10-28 14:26:03,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:26:03,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:26:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:26:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-28 14:26:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-28 14:26:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-28 14:26:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:26:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:26:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:26:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:26:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:26:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-28 14:26:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-28 14:26:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-28 14:26:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:26:03,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:26:03,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:26:03,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-28 14:26:03,139 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-28 14:26:03,139 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-28 14:26:03,139 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:26:03,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:26:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:26:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-28 14:26:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:26:04,126 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:26:04,126 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-28 14:26:04,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:26:04 BoogieIcfgContainer [2020-10-28 14:26:04,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:26:04,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:26:04,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:26:04,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:26:04,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:26:02" (1/3) ... [2020-10-28 14:26:04,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9fdb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:26:04, skipping insertion in model container [2020-10-28 14:26:04,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:02" (2/3) ... [2020-10-28 14:26:04,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9fdb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:26:04, skipping insertion in model container [2020-10-28 14:26:04,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:26:04" (3/3) ... [2020-10-28 14:26:04,138 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663a.c [2020-10-28 14:26:04,150 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:26:04,156 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:26:04,170 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:26:04,198 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:26:04,199 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:26:04,199 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:26:04,199 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:26:04,199 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:26:04,199 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:26:04,199 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:26:04,199 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:26:04,220 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-10-28 14:26:04,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-28 14:26:04,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:26:04,228 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] [2020-10-28 14:26:04,228 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:26:04,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:26:04,235 INFO L82 PathProgramCache]: Analyzing trace with hash 199039736, now seen corresponding path program 1 times [2020-10-28 14:26:04,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:26:04,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [816334144] [2020-10-28 14:26:04,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:26:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:04,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:04,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:04,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:04,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 14:26:04,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:26:04,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 399 [2020-10-28 14:26:04,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:04,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:04,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:04,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 14:26:04,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:04,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 14:26:05,015 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-28 14:26:05,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:26:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:05,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:05,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:05,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:26:05,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:26:05,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 14:26:05,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:05,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:05,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:05,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:26:05,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:05,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:05,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 14:26:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:05,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:05,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:05,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:05,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 14:26:05,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:26:05,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 14:26:05,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:05,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:05,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:05,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 14:26:05,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:05,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 14:26:05,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 14:26:05,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [816334144] [2020-10-28 14:26:05,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:26:05,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 14:26:05,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422029263] [2020-10-28 14:26:05,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 14:26:05,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:26:05,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 14:26:05,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 14:26:05,225 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 4 states. [2020-10-28 14:26:05,412 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-28 14:26:05,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:26:05,881 INFO L93 Difference]: Finished difference Result 205 states and 323 transitions. [2020-10-28 14:26:05,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 14:26:05,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-28 14:26:05,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:26:05,895 INFO L225 Difference]: With dead ends: 205 [2020-10-28 14:26:05,895 INFO L226 Difference]: Without dead ends: 99 [2020-10-28 14:26:05,900 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 [2020-10-28 14:26:05,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-28 14:26:05,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-10-28 14:26:05,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-28 14:26:05,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2020-10-28 14:26:05,958 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 20 [2020-10-28 14:26:05,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:26:05,959 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2020-10-28 14:26:05,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 14:26:05,959 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2020-10-28 14:26:05,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-28 14:26:05,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:26:05,961 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] [2020-10-28 14:26:05,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:26:05,961 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:26:05,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:26:05,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1527493777, now seen corresponding path program 1 times [2020-10-28 14:26:05,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:26:05,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521262193] [2020-10-28 14:26:05,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:26:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 14:26:06,020 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 14:26:06,020 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 14:26:06,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:26:06,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 02:26:06 BoogieIcfgContainer [2020-10-28 14:26:06,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 14:26:06,048 INFO L168 Benchmark]: Toolchain (without parser) took 3593.48 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 69.6 MB in the end (delta: 56.9 MB). Peak memory consumption was 57.8 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:06,052 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 125.8 MB. Free memory is still 100.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:26:06,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.27 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 110.9 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:06,054 INFO L168 Benchmark]: Boogie Preprocessor took 148.07 ms. Allocated memory is still 151.0 MB. Free memory was 110.9 MB in the beginning and 107.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:06,055 INFO L168 Benchmark]: RCFGBuilder took 1102.12 ms. Allocated memory is still 151.0 MB. Free memory was 107.8 MB in the beginning and 100.2 MB in the end (delta: 7.6 MB). Peak memory consumption was 12.0 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:06,056 INFO L168 Benchmark]: TraceAbstraction took 1914.18 ms. Allocated memory is still 151.0 MB. Free memory was 99.7 MB in the beginning and 69.6 MB in the end (delta: 30.2 MB). Peak memory consumption was 31.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:06,059 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 125.8 MB. Free memory is still 100.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 414.27 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 110.9 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 148.07 ms. Allocated memory is still 151.0 MB. Free memory was 110.9 MB in the beginning and 107.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1102.12 ms. Allocated memory is still 151.0 MB. Free memory was 107.8 MB in the beginning and 100.2 MB in the end (delta: 7.6 MB). Peak memory consumption was 12.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1914.18 ms. Allocated memory is still 151.0 MB. Free memory was 99.7 MB in the beginning and 69.6 MB in the end (delta: 30.2 MB). Peak memory consumption was 31.1 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 253, 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_0663a.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: 1.8s, 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, 0.7s 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...