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_0720.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:20:23,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:20:23,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:20:23,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:20:23,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:20:23,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:20:23,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:20:23,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:20:23,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:20:23,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:20:23,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:20:23,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:20:23,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:20:23,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:20:23,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:20:23,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:20:23,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:20:23,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:20:23,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:20:23,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:20:23,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:20:23,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:20:23,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:20:23,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:20:23,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:20:23,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:20:23,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:20:23,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:20:23,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:20:23,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:20:23,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:20:23,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:20:23,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:20:23,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:20:23,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:20:23,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:20:23,612 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 01:20:23,628 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:20:23,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:20:23,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:20:23,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:20:23,630 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:20:23,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:20:23,630 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:20:23,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:20:23,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:20:23,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:20:23,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:20:23,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:20:23,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:20:23,632 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:20:23,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:20:23,633 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:20:23,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:20:23,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:20:23,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:20:23,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:20:23,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:20:23,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:20:23,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:20:23,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:20:23,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:20:23,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:20:23,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:20:23,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:20:23,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:20:23,682 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:20:23,696 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:20:23,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:20:23,701 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:20:23,702 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:20:23,705 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0720.c [2019-09-08 01:20:23,776 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0151df19c/ce7dd15f6e5749709f5e473c0466da95/FLAG0c02bf138 [2019-09-08 01:20:24,244 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:20:24,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0720.c [2019-09-08 01:20:24,252 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0151df19c/ce7dd15f6e5749709f5e473c0466da95/FLAG0c02bf138 [2019-09-08 01:20:24,654 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0151df19c/ce7dd15f6e5749709f5e473c0466da95 [2019-09-08 01:20:24,664 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:20:24,665 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:20:24,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:20:24,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:20:24,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:20:24,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:20:24" (1/1) ... [2019-09-08 01:20:24,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ca0bd79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:24, skipping insertion in model container [2019-09-08 01:20:24,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:20:24" (1/1) ... [2019-09-08 01:20:24,681 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:20:24,704 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:20:25,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:20:25,014 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:20:25,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:20:25,104 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:20:25,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:25 WrapperNode [2019-09-08 01:20:25,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:20:25,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:20:25,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:20:25,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:20:25,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:25" (1/1) ... [2019-09-08 01:20:25,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:25" (1/1) ... [2019-09-08 01:20:25,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:25" (1/1) ... [2019-09-08 01:20:25,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:25" (1/1) ... [2019-09-08 01:20:25,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:25" (1/1) ... [2019-09-08 01:20:25,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:25" (1/1) ... [2019-09-08 01:20:25,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:25" (1/1) ... [2019-09-08 01:20:25,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:20:25,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:20:25,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:20:25,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:20:25,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:25" (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 01:20:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:20:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:20:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2019-09-08 01:20:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2019-09-08 01:20:25,208 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:20:25,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:20:25,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-08 01:20:25,208 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2019-09-08 01:20:25,208 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2019-09-08 01:20:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:20:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:20:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:20:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:20:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:20:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:20:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:20:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:20:25,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:20:25,685 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:20:25,685 INFO L283 CfgBuilder]: Removed 8 assume(true) statements. [2019-09-08 01:20:25,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:20:25 BoogieIcfgContainer [2019-09-08 01:20:25,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:20:25,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:20:25,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:20:25,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:20:25,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:20:24" (1/3) ... [2019-09-08 01:20:25,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64041de7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:20:25, skipping insertion in model container [2019-09-08 01:20:25,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:25" (2/3) ... [2019-09-08 01:20:25,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64041de7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:20:25, skipping insertion in model container [2019-09-08 01:20:25,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:20:25" (3/3) ... [2019-09-08 01:20:25,694 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0720.c [2019-09-08 01:20:25,704 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:20:25,711 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:20:25,727 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:20:25,753 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:20:25,754 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:20:25,754 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:20:25,754 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:20:25,754 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:20:25,754 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:20:25,754 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:20:25,754 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:20:25,755 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:20:25,772 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2019-09-08 01:20:25,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-08 01:20:25,778 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:20:25,778 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] [2019-09-08 01:20:25,780 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:20:25,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:20:25,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1131346129, now seen corresponding path program 1 times [2019-09-08 01:20:25,787 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:20:25,787 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:20:25,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:20:25,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:20:25,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:20:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:20:25,919 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 01:20:25,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:20:25,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:20:25,924 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:20:25,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:20:25,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:20:25,937 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 2 states. [2019-09-08 01:20:25,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:20:25,962 INFO L93 Difference]: Finished difference Result 116 states and 172 transitions. [2019-09-08 01:20:25,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:20:25,963 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2019-09-08 01:20:25,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:20:25,975 INFO L225 Difference]: With dead ends: 116 [2019-09-08 01:20:25,976 INFO L226 Difference]: Without dead ends: 58 [2019-09-08 01:20:25,979 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 01:20:25,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-09-08 01:20:26,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2019-09-08 01:20:26,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-09-08 01:20:26,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 77 transitions. [2019-09-08 01:20:26,027 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 77 transitions. Word has length 20 [2019-09-08 01:20:26,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:20:26,028 INFO L475 AbstractCegarLoop]: Abstraction has 58 states and 77 transitions. [2019-09-08 01:20:26,028 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:20:26,029 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 77 transitions. [2019-09-08 01:20:26,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-08 01:20:26,030 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:20:26,030 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 01:20:26,031 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:20:26,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:20:26,031 INFO L82 PathProgramCache]: Analyzing trace with hash -2124284734, now seen corresponding path program 1 times [2019-09-08 01:20:26,032 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:20:26,032 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:20:26,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:20:26,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:20:26,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:20:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:20:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:20:26,193 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:20:26,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:20:26 BoogieIcfgContainer [2019-09-08 01:20:26,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:20:26,246 INFO L168 Benchmark]: Toolchain (without parser) took 1577.98 ms. Allocated memory was 140.0 MB in the beginning and 199.8 MB in the end (delta: 59.8 MB). Free memory was 88.0 MB in the beginning and 119.1 MB in the end (delta: -31.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:20:26,247 INFO L168 Benchmark]: CDTParser took 0.29 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 01:20:26,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.90 ms. Allocated memory was 140.0 MB in the beginning and 199.8 MB in the end (delta: 59.8 MB). Free memory was 87.8 MB in the beginning and 175.1 MB in the end (delta: -87.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-09-08 01:20:26,251 INFO L168 Benchmark]: Boogie Preprocessor took 49.92 ms. Allocated memory is still 199.8 MB. Free memory was 175.1 MB in the beginning and 172.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:20:26,252 INFO L168 Benchmark]: RCFGBuilder took 530.73 ms. Allocated memory is still 199.8 MB. Free memory was 172.7 MB in the beginning and 144.9 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:20:26,253 INFO L168 Benchmark]: TraceAbstraction took 553.97 ms. Allocated memory is still 199.8 MB. Free memory was 144.9 MB in the beginning and 119.1 MB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:20:26,265 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 438.90 ms. Allocated memory was 140.0 MB in the beginning and 199.8 MB in the end (delta: 59.8 MB). Free memory was 87.8 MB in the beginning and 175.1 MB in the end (delta: -87.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.92 ms. Allocated memory is still 199.8 MB. Free memory was 175.1 MB in the beginning and 172.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 530.73 ms. Allocated memory is still 199.8 MB. Free memory was 172.7 MB in the beginning and 144.9 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 553.97 ms. Allocated memory is still 199.8 MB. Free memory was 144.9 MB in the beginning and 119.1 MB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 145]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of someBinaryArithmeticDOUBLEoperation at line 36, overapproximation of bitwiseAnd at line 35. Possible FailurePath: [L20] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [\old(one_sqrt)=15, \old(tiny_sqrt)=11, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L139] double x = 0.0 / 0.0; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L141] CALL, EXPR __ieee754_sqrt(x) VAL [\old(x)=16, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L23] double z; [L24] __int32_t sign = 0x80000000; [L25] __uint32_t r, t1, s1, ix1, q1; [L26] __int32_t ix0, s0, q, m, t, i; VAL [\old(x)=16, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=16] [L29] ieee_double_shape_type ew_u; [L30] ew_u.value = (x) [L31] EXPR ew_u.parts.msw [L31] (ix0) = ew_u.parts.msw [L32] EXPR ew_u.parts.lsw [L32] (ix1) = ew_u.parts.lsw [L35] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L36] return x * x + x; VAL [\old(x)=16, ix0=0, ix1=9, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=16] [L141] RET, EXPR __ieee754_sqrt(x) VAL [__ieee754_sqrt(x)=14, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=16] [L141] double res = __ieee754_sqrt(x); [L144] CALL, EXPR isnan_double(res) VAL [\old(x)=14, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L18] return x != x; VAL [\old(x)=14, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L144] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, one_sqrt=1, res=14, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=16] [L144] COND TRUE !isnan_double(res) [L145] __VERIFIER_error() VAL [one_sqrt=1, res=14, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=16] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 62 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 81 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=62occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 361 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...