java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0620b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:19:53,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:19:53,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:19:53,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:19:53,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:19:53,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:19:53,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:19:53,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:19:53,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:19:53,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:19:53,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:19:53,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:19:53,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:19:53,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:19:53,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:19:53,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:19:53,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:19:53,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:19:53,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:19:53,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:19:53,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:19:53,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:19:53,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:19:53,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:19:53,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:19:53,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:19:53,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:19:53,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:19:53,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:19:53,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:19:53,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:19:53,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:19:53,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:19:53,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:19:53,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:19:53,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:19:53,568 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 01:19:53,584 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:19:53,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:19:53,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:19:53,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:19:53,586 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:19:53,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:19:53,586 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:19:53,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:19:53,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:19:53,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:19:53,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:19:53,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:19:53,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:19:53,588 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:19:53,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:19:53,588 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:19:53,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:19:53,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:19:53,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:19:53,589 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:19:53,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:19:53,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:19:53,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:19:53,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:19:53,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:19:53,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:19:53,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:19:53,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:19:53,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:19:53,618 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:19:53,632 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:19:53,635 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:19:53,637 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:19:53,638 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:19:53,638 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0620b.c [2019-09-08 01:19:53,701 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae718957e/58f28d8e4bc149249f9e0bf7947d4e80/FLAGba639450e [2019-09-08 01:19:54,192 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:19:54,194 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0620b.c [2019-09-08 01:19:54,207 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae718957e/58f28d8e4bc149249f9e0bf7947d4e80/FLAGba639450e [2019-09-08 01:19:54,547 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae718957e/58f28d8e4bc149249f9e0bf7947d4e80 [2019-09-08 01:19:54,560 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:19:54,562 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:19:54,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:19:54,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:19:54,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:19:54,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:19:54" (1/1) ... [2019-09-08 01:19:54,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a94f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:19:54, skipping insertion in model container [2019-09-08 01:19:54,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:19:54" (1/1) ... [2019-09-08 01:19:54,585 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:19:54,623 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:19:54,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:19:54,965 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:19:55,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:19:55,052 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:19:55,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:19:55 WrapperNode [2019-09-08 01:19:55,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:19:55,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:19:55,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:19:55,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:19:55,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:19:55" (1/1) ... [2019-09-08 01:19:55,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:19:55" (1/1) ... [2019-09-08 01:19:55,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:19:55" (1/1) ... [2019-09-08 01:19:55,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:19:55" (1/1) ... [2019-09-08 01:19:55,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:19:55" (1/1) ... [2019-09-08 01:19:55,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:19:55" (1/1) ... [2019-09-08 01:19:55,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:19:55" (1/1) ... [2019-09-08 01:19:55,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:19:55,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:19:55,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:19:55,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:19:55,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:19:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-09-08 01:19:55,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:19:55,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:19:55,179 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2019-09-08 01:19:55,179 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2019-09-08 01:19:55,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2019-09-08 01:19:55,179 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:19:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:19:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-08 01:19:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2019-09-08 01:19:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:19:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:19:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:19:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:19:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:19:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:19:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2019-09-08 01:19:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2019-09-08 01:19:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:19:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:19:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-09-08 01:19:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:19:55,699 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:19:55,700 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-09-08 01:19:55,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:19:55 BoogieIcfgContainer [2019-09-08 01:19:55,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:19:55,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:19:55,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:19:55,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:19:55,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:19:54" (1/3) ... [2019-09-08 01:19:55,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c64647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:19:55, skipping insertion in model container [2019-09-08 01:19:55,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:19:55" (2/3) ... [2019-09-08 01:19:55,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c64647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:19:55, skipping insertion in model container [2019-09-08 01:19:55,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:19:55" (3/3) ... [2019-09-08 01:19:55,712 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620b.c [2019-09-08 01:19:55,723 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:19:55,732 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:19:55,744 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:19:55,775 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:19:55,776 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:19:55,776 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:19:55,776 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:19:55,776 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:19:55,776 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:19:55,776 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:19:55,777 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:19:55,777 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:19:55,792 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2019-09-08 01:19:55,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-08 01:19:55,799 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:19:55,800 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:19:55,802 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:19:55,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:19:55,807 INFO L82 PathProgramCache]: Analyzing trace with hash -559886589, now seen corresponding path program 1 times [2019-09-08 01:19:55,809 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:19:55,810 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:19:55,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:19:55,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:19:55,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:19:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:19:55,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:19:55,996 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:19:55,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:19:56,000 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:19:56,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:19:56,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:19:56,013 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2019-09-08 01:19:56,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:19:56,041 INFO L93 Difference]: Finished difference Result 104 states and 150 transitions. [2019-09-08 01:19:56,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:19:56,043 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-09-08 01:19:56,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:19:56,053 INFO L225 Difference]: With dead ends: 104 [2019-09-08 01:19:56,054 INFO L226 Difference]: Without dead ends: 52 [2019-09-08 01:19:56,057 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:19:56,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-09-08 01:19:56,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-09-08 01:19:56,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-09-08 01:19:56,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2019-09-08 01:19:56,102 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 63 transitions. Word has length 19 [2019-09-08 01:19:56,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:19:56,102 INFO L475 AbstractCegarLoop]: Abstraction has 52 states and 63 transitions. [2019-09-08 01:19:56,103 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:19:56,103 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2019-09-08 01:19:56,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-08 01:19:56,104 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:19:56,104 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:19:56,105 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:19:56,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:19:56,106 INFO L82 PathProgramCache]: Analyzing trace with hash -792059424, now seen corresponding path program 1 times [2019-09-08 01:19:56,106 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:19:56,106 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:19:56,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:19:56,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:19:56,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:19:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:19:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:19:56,309 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:19:56,344 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967300 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2019-09-08 01:19:56,345 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967303 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2019-09-08 01:19:56,346 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967309 could not be translated for associated CType ARRAY#_11_~DOUBLE# [2019-09-08 01:19:56,346 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967308 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2019-09-08 01:19:56,347 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967307 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2019-09-08 01:19:56,347 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967306 could not be translated for associated CType ARRAY#_11_~DOUBLE# [2019-09-08 01:19:56,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:19:56 BoogieIcfgContainer [2019-09-08 01:19:56,362 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:19:56,365 INFO L168 Benchmark]: Toolchain (without parser) took 1802.06 ms. Allocated memory was 140.0 MB in the beginning and 199.8 MB in the end (delta: 59.8 MB). Free memory was 87.5 MB in the beginning and 112.1 MB in the end (delta: -24.6 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:19:56,366 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:19:56,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 485.75 ms. Allocated memory was 140.0 MB in the beginning and 199.8 MB in the end (delta: 59.8 MB). Free memory was 87.3 MB in the beginning and 174.3 MB in the end (delta: -87.0 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2019-09-08 01:19:56,368 INFO L168 Benchmark]: Boogie Preprocessor took 73.91 ms. Allocated memory is still 199.8 MB. Free memory was 174.3 MB in the beginning and 171.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:19:56,369 INFO L168 Benchmark]: RCFGBuilder took 575.18 ms. Allocated memory is still 199.8 MB. Free memory was 171.9 MB in the beginning and 144.8 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2019-09-08 01:19:56,370 INFO L168 Benchmark]: TraceAbstraction took 658.82 ms. Allocated memory is still 199.8 MB. Free memory was 144.8 MB in the beginning and 112.1 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:19:56,374 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 485.75 ms. Allocated memory was 140.0 MB in the beginning and 199.8 MB in the end (delta: 59.8 MB). Free memory was 87.3 MB in the beginning and 174.3 MB in the end (delta: -87.0 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.91 ms. Allocated memory is still 199.8 MB. Free memory was 174.3 MB in the beginning and 171.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 575.18 ms. Allocated memory is still 199.8 MB. Free memory was 171.9 MB in the beginning and 144.8 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 658.82 ms. Allocated memory is still 199.8 MB. Free memory was 144.8 MB in the beginning and 112.1 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967300 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967303 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967309 could not be translated for associated CType ARRAY#_11_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967308 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967307 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967306 could not be translated for associated CType ARRAY#_11_~DOUBLE# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 159]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 158, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of bitwiseAnd at line 73. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; VAL [\old(aT_atan)=null, \old(aT_atan)=null, \old(atanhi_atan)=null, \old(atanhi_atan)=null, \old(atanlo_atan)=null, \old(atanlo_atan)=null, \old(huge_atan)=4294967305, \old(one_atan)=4294967294, \old(pi)=4294967301, \old(pi_o_2)=4294967295, \old(pi_o_4)=4294967297, aT_atan={-2:0}, atanhi_atan={-1:0}, atanlo_atan={1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L154] double x = 0.0; VAL [aT_atan={-2:0}, atanhi_atan={-1:0}, atanlo_atan={1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L155] CALL, EXPR atan_double(x) VAL [\old(x)=0, aT_atan={-2:0}, atanhi_atan={-1:0}, atanlo_atan={1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L65] double w, s1, s2, z; [L66] __int32_t ix, hx, id; VAL [\old(x)=0, aT_atan={-2:0}, atanhi_atan={-1:0}, atanlo_atan={1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L69] ieee_double_shape_type gh_u; [L70] gh_u.value = (x) [L71] EXPR gh_u.parts.msw [L71] (hx) = gh_u.parts.msw [L73] ix = hx & 0x7fffffff VAL [\old(x)=0, aT_atan={-2:0}, atanhi_atan={-1:0}, atanlo_atan={1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-3, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L74] COND FALSE !(ix >= 0x44100000) VAL [\old(x)=0, aT_atan={-2:0}, atanhi_atan={-1:0}, atanlo_atan={1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-3, ix=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L88] COND TRUE ix < 0x3fdc0000 VAL [\old(x)=0, aT_atan={-2:0}, atanhi_atan={-1:0}, atanlo_atan={1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-3, ix=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L89] COND TRUE ix < 0x3e200000 VAL [\old(x)=0, aT_atan={-2:0}, atanhi_atan={-1:0}, atanlo_atan={1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-3, ix=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L90] COND TRUE huge_atan + x > one_atan [L91] return x; VAL [\old(x)=0, \result=0, aT_atan={-2:0}, atanhi_atan={-1:0}, atanlo_atan={1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-3, ix=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L155] RET, EXPR atan_double(x) VAL [aT_atan={-2:0}, atan_double(x)=0, atanhi_atan={-1:0}, atanlo_atan={1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L155] double res = atan_double(x); [L158] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={-2:0}, atanhi_atan={-1:0}, atanlo_atan={1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=0, res == 0.0 && __signbit_double(res) == 0=0, x=0] [L158] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L159] __VERIFIER_error() VAL [aT_atan={-2:0}, atanhi_atan={-1:0}, atanlo_atan={1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 56 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 67 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...