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_0740.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:20:28,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:20:28,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:20:28,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:20:28,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:20:28,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:20:28,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:20:28,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:20:28,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:20:28,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:20:28,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:20:28,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:20:28,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:20:28,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:20:28,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:20:28,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:20:28,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:20:28,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:20:28,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:20:28,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:20:28,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:20:28,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:20:28,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:20:28,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:20:28,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:20:28,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:20:28,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:20:28,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:20:28,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:20:28,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:20:28,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:20:28,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:20:28,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:20:28,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:20:28,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:20:28,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:20:28,195 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 01:20:28,218 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:20:28,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:20:28,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:20:28,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:20:28,220 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:20:28,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:20:28,221 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:20:28,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:20:28,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:20:28,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:20:28,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:20:28,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:20:28,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:20:28,222 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:20:28,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:20:28,223 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:20:28,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:20:28,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:20:28,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:20:28,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:20:28,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:20:28,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:20:28,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:20:28,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:20:28,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:20:28,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:20:28,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:20:28,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:20:28,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:20:28,259 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:20:28,274 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:20:28,279 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:20:28,280 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:20:28,281 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:20:28,281 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0740.c [2019-09-08 01:20:28,346 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54f179e8c/ff1f62c8e5a8443ab135729bfda29988/FLAG86efb9a2c [2019-09-08 01:20:28,803 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:20:28,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0740.c [2019-09-08 01:20:28,816 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54f179e8c/ff1f62c8e5a8443ab135729bfda29988/FLAG86efb9a2c [2019-09-08 01:20:29,201 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54f179e8c/ff1f62c8e5a8443ab135729bfda29988 [2019-09-08 01:20:29,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:20:29,217 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:20:29,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:20:29,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:20:29,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:20:29,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:20:29" (1/1) ... [2019-09-08 01:20:29,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@89f1d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:29, skipping insertion in model container [2019-09-08 01:20:29,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:20:29" (1/1) ... [2019-09-08 01:20:29,235 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:20:29,274 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:20:29,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:20:29,654 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:20:29,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:20:29,720 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:20:29,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:29 WrapperNode [2019-09-08 01:20:29,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:20:29,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:20:29,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:20:29,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:20:29,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:29" (1/1) ... [2019-09-08 01:20:29,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:29" (1/1) ... [2019-09-08 01:20:29,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:29" (1/1) ... [2019-09-08 01:20:29,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:29" (1/1) ... [2019-09-08 01:20:29,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:29" (1/1) ... [2019-09-08 01:20:29,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:29" (1/1) ... [2019-09-08 01:20:29,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:29" (1/1) ... [2019-09-08 01:20:29,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:20:29,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:20:29,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:20:29,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:20:29,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:29" (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 01:20:29,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:20:29,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:20:29,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2019-09-08 01:20:29,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2019-09-08 01:20:29,845 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:20:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:20:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-08 01:20:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2019-09-08 01:20:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:20:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:20:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:20:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:20:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:20:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:20:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2019-09-08 01:20:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:20:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:20:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:20:30,367 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:20:30,368 INFO L283 CfgBuilder]: Removed 8 assume(true) statements. [2019-09-08 01:20:30,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:20:30 BoogieIcfgContainer [2019-09-08 01:20:30,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:20:30,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:20:30,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:20:30,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:20:30,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:20:29" (1/3) ... [2019-09-08 01:20:30,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5922b227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:20:30, skipping insertion in model container [2019-09-08 01:20:30,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:29" (2/3) ... [2019-09-08 01:20:30,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5922b227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:20:30, skipping insertion in model container [2019-09-08 01:20:30,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:20:30" (3/3) ... [2019-09-08 01:20:30,378 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0740.c [2019-09-08 01:20:30,388 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:20:30,396 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:20:30,412 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:20:30,443 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:20:30,444 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:20:30,444 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:20:30,444 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:20:30,445 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:20:30,445 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:20:30,445 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:20:30,445 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:20:30,446 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:20:30,466 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2019-09-08 01:20:30,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-08 01:20:30,473 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:20:30,474 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 01:20:30,476 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:20:30,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:20:30,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1131346129, now seen corresponding path program 1 times [2019-09-08 01:20:30,484 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:20:30,485 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:20:30,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:20:30,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:20:30,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:20:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:20:30,611 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 01:20:30,614 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:20:30,614 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:20:30,617 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:20:30,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:20:30,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:20:30,631 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 2 states. [2019-09-08 01:20:30,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:20:30,661 INFO L93 Difference]: Finished difference Result 116 states and 172 transitions. [2019-09-08 01:20:30,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:20:30,663 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2019-09-08 01:20:30,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:20:30,675 INFO L225 Difference]: With dead ends: 116 [2019-09-08 01:20:30,675 INFO L226 Difference]: Without dead ends: 58 [2019-09-08 01:20:30,679 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 01:20:30,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-09-08 01:20:30,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2019-09-08 01:20:30,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-09-08 01:20:30,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 77 transitions. [2019-09-08 01:20:30,726 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 77 transitions. Word has length 20 [2019-09-08 01:20:30,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:20:30,727 INFO L475 AbstractCegarLoop]: Abstraction has 58 states and 77 transitions. [2019-09-08 01:20:30,727 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:20:30,727 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 77 transitions. [2019-09-08 01:20:30,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-08 01:20:30,729 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:20:30,729 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 01:20:30,729 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:20:30,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:20:30,730 INFO L82 PathProgramCache]: Analyzing trace with hash -2124284734, now seen corresponding path program 1 times [2019-09-08 01:20:30,730 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:20:30,730 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:20:30,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:20:30,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:20:30,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:20:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:20:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:20:30,846 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:20:30,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:20:30 BoogieIcfgContainer [2019-09-08 01:20:30,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:20:30,875 INFO L168 Benchmark]: Toolchain (without parser) took 1657.00 ms. Allocated memory was 132.1 MB in the beginning and 198.2 MB in the end (delta: 66.1 MB). Free memory was 88.2 MB in the beginning and 115.5 MB in the end (delta: -27.4 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:20:30,875 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 132.1 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:20:30,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 502.58 ms. Allocated memory was 132.1 MB in the beginning and 198.2 MB in the end (delta: 66.1 MB). Free memory was 88.0 MB in the beginning and 171.6 MB in the end (delta: -83.7 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:20:30,877 INFO L168 Benchmark]: Boogie Preprocessor took 54.08 ms. Allocated memory is still 198.2 MB. Free memory was 171.6 MB in the beginning and 169.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:20:30,878 INFO L168 Benchmark]: RCFGBuilder took 593.67 ms. Allocated memory is still 198.2 MB. Free memory was 169.1 MB in the beginning and 141.9 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:20:30,879 INFO L168 Benchmark]: TraceAbstraction took 502.44 ms. Allocated memory is still 198.2 MB. Free memory was 141.9 MB in the beginning and 115.5 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:20:30,883 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 132.1 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 502.58 ms. Allocated memory was 132.1 MB in the beginning and 198.2 MB in the end (delta: 66.1 MB). Free memory was 88.0 MB in the beginning and 171.6 MB in the end (delta: -83.7 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.08 ms. Allocated memory is still 198.2 MB. Free memory was 171.6 MB in the beginning and 169.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 593.67 ms. Allocated memory is still 198.2 MB. Free memory was 169.1 MB in the beginning and 141.9 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 502.44 ms. Allocated memory is still 198.2 MB. Free memory was 141.9 MB in the beginning and 115.5 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 144]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 130, overapproximation of someBinaryArithmeticDOUBLEoperation at line 33, overapproximation of bitwiseAnd at line 32. Possible FailurePath: [L17] 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 = -1.0 / 0.0; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L140] CALL, EXPR __ieee754_sqrt(x) VAL [\old(x)=16, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] double z; [L21] __int32_t sign = 0x80000000; [L22] __uint32_t r, t1, s1, ix1, q1; [L23] __int32_t ix0, s0, q, m, t, i; VAL [\old(x)=16, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=16] [L26] ieee_double_shape_type ew_u; [L27] ew_u.value = (x) [L28] EXPR ew_u.parts.msw [L28] (ix0) = ew_u.parts.msw [L29] EXPR ew_u.parts.lsw [L29] (ix1) = ew_u.parts.lsw [L32] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L33] return x * x + x; VAL [\old(x)=16, ix0=0, ix1=9, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=16] [L140] RET, EXPR __ieee754_sqrt(x) VAL [__ieee754_sqrt(x)=14, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=16] [L140] double res = __ieee754_sqrt(x); [L143] CALL, EXPR isnan_double(res) VAL [\old(x)=14, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L130] return x != x; VAL [\old(x)=14, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L143] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, one_sqrt=1, res=14, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=16] [L143] COND TRUE !isnan_double(res) [L144] __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...