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_1121b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:21:17,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:21:17,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:21:17,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:21:17,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:21:17,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:21:17,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:21:17,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:21:17,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:21:17,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:21:17,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:21:17,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:21:17,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:21:17,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:21:17,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:21:17,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:21:17,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:21:17,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:21:17,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:21:17,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:21:17,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:21:17,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:21:17,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:21:17,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:21:17,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:21:17,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:21:17,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:21:17,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:21:17,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:21:17,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:21:17,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:21:17,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:21:17,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:21:17,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:21:17,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:21:17,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:21:17,760 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 01:21:17,775 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:21:17,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:21:17,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:21:17,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:21:17,780 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:21:17,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:21:17,781 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:21:17,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:21:17,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:21:17,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:21:17,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:21:17,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:21:17,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:21:17,782 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:21:17,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:21:17,782 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:21:17,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:21:17,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:21:17,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:21:17,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:21:17,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:21:17,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:21:17,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:21:17,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:21:17,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:21:17,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:21:17,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:21:17,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:21:17,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:21:17,837 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:21:17,854 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:21:17,859 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:21:17,860 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:21:17,860 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:21:17,861 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1121b.c [2019-09-08 01:21:17,928 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f85b313f5/24ccd53201654415852faa48695ea5f4/FLAGf9e1b6ad3 [2019-09-08 01:21:18,393 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:21:18,394 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1121b.c [2019-09-08 01:21:18,402 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f85b313f5/24ccd53201654415852faa48695ea5f4/FLAGf9e1b6ad3 [2019-09-08 01:21:18,760 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f85b313f5/24ccd53201654415852faa48695ea5f4 [2019-09-08 01:21:18,770 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:21:18,772 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:21:18,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:18,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:21:18,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:21:18,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:18" (1/1) ... [2019-09-08 01:21:18,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c64650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:18, skipping insertion in model container [2019-09-08 01:21:18,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:18" (1/1) ... [2019-09-08 01:21:18,787 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:21:18,817 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:21:19,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:19,179 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:21:19,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:19,249 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:21:19,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19 WrapperNode [2019-09-08 01:21:19,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:19,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:21:19,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:21:19,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:21:19,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (1/1) ... [2019-09-08 01:21:19,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (1/1) ... [2019-09-08 01:21:19,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (1/1) ... [2019-09-08 01:21:19,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (1/1) ... [2019-09-08 01:21:19,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (1/1) ... [2019-09-08 01:21:19,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (1/1) ... [2019-09-08 01:21:19,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (1/1) ... [2019-09-08 01:21:19,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:21:19,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:21:19,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:21:19,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:21:19,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (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 01:21:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:21:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:21:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2019-09-08 01:21:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2019-09-08 01:21:19,423 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:21:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:21:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-08 01:21:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2019-09-08 01:21:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2019-09-08 01:21:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:21:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:21:19,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:21:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:21:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:21:19,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:21:19,427 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:21:19,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:21:19,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-09-08 01:21:19,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:21:20,035 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:21:20,036 INFO L283 CfgBuilder]: Removed 14 assume(true) statements. [2019-09-08 01:21:20,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:20 BoogieIcfgContainer [2019-09-08 01:21:20,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:21:20,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:21:20,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:21:20,042 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:21:20,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:21:18" (1/3) ... [2019-09-08 01:21:20,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2574649d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:20, skipping insertion in model container [2019-09-08 01:21:20,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:19" (2/3) ... [2019-09-08 01:21:20,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2574649d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:20, skipping insertion in model container [2019-09-08 01:21:20,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:20" (3/3) ... [2019-09-08 01:21:20,046 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2019-09-08 01:21:20,055 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:21:20,064 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:21:20,080 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:21:20,112 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:21:20,113 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:21:20,113 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:21:20,114 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:21:20,114 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:21:20,114 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:21:20,114 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:21:20,115 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:21:20,115 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:21:20,133 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2019-09-08 01:21:20,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-09-08 01:21:20,139 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:20,141 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, 1] [2019-09-08 01:21:20,143 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:20,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:20,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1778081115, now seen corresponding path program 1 times [2019-09-08 01:21:20,149 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:20,149 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:20,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:20,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:20,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:20,294 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 01:21:20,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:20,298 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:21:20,302 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:21:20,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:21:20,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:21:20,320 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2019-09-08 01:21:20,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:20,352 INFO L93 Difference]: Finished difference Result 128 states and 210 transitions. [2019-09-08 01:21:20,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:21:20,354 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-09-08 01:21:20,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:20,367 INFO L225 Difference]: With dead ends: 128 [2019-09-08 01:21:20,367 INFO L226 Difference]: Without dead ends: 64 [2019-09-08 01:21:20,371 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 01:21:20,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-09-08 01:21:20,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2019-09-08 01:21:20,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-09-08 01:21:20,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2019-09-08 01:21:20,419 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 22 [2019-09-08 01:21:20,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:20,420 INFO L475 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2019-09-08 01:21:20,420 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:21:20,420 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2019-09-08 01:21:20,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-08 01:21:20,422 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:20,422 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, 1, 1, 1] [2019-09-08 01:21:20,422 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:20,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:20,423 INFO L82 PathProgramCache]: Analyzing trace with hash -943917416, now seen corresponding path program 1 times [2019-09-08 01:21:20,423 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:20,423 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:20,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:20,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:20,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:20,646 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:21:20,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:21:20 BoogieIcfgContainer [2019-09-08 01:21:20,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:21:20,687 INFO L168 Benchmark]: Toolchain (without parser) took 1914.48 ms. Allocated memory was 132.6 MB in the beginning and 198.2 MB in the end (delta: 65.5 MB). Free memory was 88.6 MB in the beginning and 106.0 MB in the end (delta: -17.4 MB). Peak memory consumption was 48.1 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:20,688 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 132.6 MB. Free memory is still 106.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-08 01:21:20,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 477.31 ms. Allocated memory was 132.6 MB in the beginning and 198.2 MB in the end (delta: 65.5 MB). Free memory was 88.2 MB in the beginning and 171.5 MB in the end (delta: -83.3 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:20,690 INFO L168 Benchmark]: Boogie Preprocessor took 93.84 ms. Allocated memory is still 198.2 MB. Free memory was 171.5 MB in the beginning and 168.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:20,690 INFO L168 Benchmark]: RCFGBuilder took 693.15 ms. Allocated memory is still 198.2 MB. Free memory was 168.8 MB in the beginning and 136.0 MB in the end (delta: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:20,691 INFO L168 Benchmark]: TraceAbstraction took 646.05 ms. Allocated memory is still 198.2 MB. Free memory was 136.0 MB in the beginning and 106.0 MB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:20,695 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 132.6 MB. Free memory is still 106.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 477.31 ms. Allocated memory was 132.6 MB in the beginning and 198.2 MB in the end (delta: 65.5 MB). Free memory was 88.2 MB in the beginning and 171.5 MB in the end (delta: -83.3 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.84 ms. Allocated memory is still 198.2 MB. Free memory was 171.5 MB in the beginning and 168.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 693.15 ms. Allocated memory is still 198.2 MB. Free memory was 168.8 MB in the beginning and 136.0 MB in the end (delta: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 646.05 ms. Allocated memory is still 198.2 MB. Free memory was 136.0 MB in the beginning and 106.0 MB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 175]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 170, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=4294967314, \old(Zero_fmod)=4294967309, \old(Zero_fmod)=4294967306, one_fmod=1, Zero_fmod={-2:0}] [L169] double x = __VERIFIER_nondet_double(); [L170] double y = -0.0; VAL [one_fmod=1, x=4294967300, Zero_fmod={-2:0}] [L171] CALL, EXPR fmod_double(x, y) VAL [\old(x)=4294967300, \old(y)=4294967310, one_fmod=1, Zero_fmod={-2:0}] [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [\old(x)=4294967300, \old(y)=4294967310, one_fmod=1, x=4294967300, y=4294967310, Zero_fmod={-2:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [\old(x)=4294967300, \old(y)=4294967310, lx=4294967308, ly=4294967312, one_fmod=1, sx=2, x=4294967300, y=4294967310, Zero_fmod={-2:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); VAL [\old(x)=4294967300, \old(y)=4294967310, hx=2146435072, lx=4294967308, ly=4294967312, one_fmod=1, sx=2, x=4294967300, y=4294967310, Zero_fmod={-2:0}] [L171] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=4294967302, one_fmod=1, x=4294967300, y=4294967310, Zero_fmod={-2:0}] [L171] double res = fmod_double(x, y); [L174] CALL, EXPR isnan_double(res) VAL [\old(x)=4294967302, one_fmod=1, Zero_fmod={-2:0}] [L16] return x != x; VAL [\old(x)=4294967302, \result=0, one_fmod=1, x=4294967302, Zero_fmod={-2:0}] [L174] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, one_fmod=1, res=4294967302, x=4294967300, y=4294967310, Zero_fmod={-2:0}] [L174] COND TRUE !isnan_double(res) [L175] __VERIFIER_error() VAL [one_fmod=1, res=4294967302, x=4294967300, y=4294967310, Zero_fmod={-2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 68 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 94 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=68occurred 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, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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...