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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0620a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:42:08,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:42:08,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:42:08,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 01:42:08,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:42:08,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:42:08,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:42:08,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:42:08,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:42:08,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:42:08,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:42:08,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:42:08,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:42:08,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:42:08,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:42:08,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:42:08,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-10 01:42:08,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:42:08,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:42:08,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:42:08,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:42:08,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:42:08,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:42:08,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:42:08,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:42:08,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:42:08,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:42:08,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:42:08,279 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:42:08,294 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:42:08,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:42:08,294 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:42:08,294 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:42:08,295 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:42:08,295 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:42:08,296 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:42:08,296 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:42:08,296 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:42:08,296 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:42:08,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:42:08,297 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:42:08,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:42:08,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:42:08,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:42:08,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:42:08,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:42:08,298 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:42:08,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:42:08,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:42:08,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:42:08,299 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:42:08,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:42:08,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:42:08,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:42:08,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:42:08,300 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:42:08,300 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:42:08,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:42:08,301 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:42:08,328 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:42:08,339 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:42:08,343 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:42:08,344 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:42:08,344 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:42:08,345 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0620a.c [2019-09-10 01:42:08,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48e7eca45/4a8792b480d248c2818bf8ad1d90c60d/FLAG80649eea3 [2019-09-10 01:42:08,811 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:42:08,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0620a.c [2019-09-10 01:42:08,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48e7eca45/4a8792b480d248c2818bf8ad1d90c60d/FLAG80649eea3 [2019-09-10 01:42:09,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48e7eca45/4a8792b480d248c2818bf8ad1d90c60d [2019-09-10 01:42:09,229 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:42:09,230 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:42:09,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:42:09,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:42:09,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:42:09,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:42:09" (1/1) ... [2019-09-10 01:42:09,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c24ba8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:09, skipping insertion in model container [2019-09-10 01:42:09,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:42:09" (1/1) ... [2019-09-10 01:42:09,250 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:42:09,281 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:42:09,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:42:09,589 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:42:09,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:42:09,656 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:42:09,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:09 WrapperNode [2019-09-10 01:42:09,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:42:09,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:42:09,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:42:09,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:42:09,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:09" (1/1) ... [2019-09-10 01:42:09,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:09" (1/1) ... [2019-09-10 01:42:09,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:09" (1/1) ... [2019-09-10 01:42:09,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:09" (1/1) ... [2019-09-10 01:42:09,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:09" (1/1) ... [2019-09-10 01:42:09,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:09" (1/1) ... [2019-09-10 01:42:09,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:09" (1/1) ... [2019-09-10 01:42:09,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:42:09,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:42:09,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:42:09,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:42:09,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:09" (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 [2019-09-10 01:42:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:42:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:42:09,779 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2019-09-10 01:42:09,779 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2019-09-10 01:42:09,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2019-09-10 01:42:09,779 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:42:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:42:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-10 01:42:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2019-09-10 01:42:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 01:42:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-10 01:42:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:42:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:42:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:42:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-10 01:42:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2019-09-10 01:42:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2019-09-10 01:42:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:42:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:42:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-09-10 01:42:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:42:10,330 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:42:10,331 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-09-10 01:42:10,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:42:10 BoogieIcfgContainer [2019-09-10 01:42:10,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:42:10,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:42:10,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:42:10,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:42:10,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:42:09" (1/3) ... [2019-09-10 01:42:10,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea22c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:42:10, skipping insertion in model container [2019-09-10 01:42:10,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:42:09" (2/3) ... [2019-09-10 01:42:10,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea22c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:42:10, skipping insertion in model container [2019-09-10 01:42:10,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:42:10" (3/3) ... [2019-09-10 01:42:10,342 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620a.c [2019-09-10 01:42:10,352 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:42:10,360 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:42:10,375 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:42:10,395 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:42:10,395 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:42:10,395 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:42:10,396 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:42:10,396 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:42:10,396 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:42:10,396 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:42:10,396 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:42:10,409 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2019-09-10 01:42:10,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-10 01:42:10,418 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:42:10,419 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:42:10,421 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:42:10,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:42:10,427 INFO L82 PathProgramCache]: Analyzing trace with hash 963715796, now seen corresponding path program 1 times [2019-09-10 01:42:10,428 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:42:10,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:42:10,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:42:10,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:42:10,474 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:42:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:42:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:42:10,788 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:42:10,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 01:42:10,789 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:42:10,793 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 01:42:10,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 01:42:10,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 01:42:10,811 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 7 states. [2019-09-10 01:42:11,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:42:11,041 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions. [2019-09-10 01:42:11,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 01:42:11,044 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-09-10 01:42:11,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:42:11,055 INFO L225 Difference]: With dead ends: 61 [2019-09-10 01:42:11,056 INFO L226 Difference]: Without dead ends: 57 [2019-09-10 01:42:11,058 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-09-10 01:42:11,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-09-10 01:42:11,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2019-09-10 01:42:11,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-09-10 01:42:11,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2019-09-10 01:42:11,100 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 62 transitions. Word has length 19 [2019-09-10 01:42:11,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:42:11,101 INFO L475 AbstractCegarLoop]: Abstraction has 51 states and 62 transitions. [2019-09-10 01:42:11,101 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 01:42:11,101 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2019-09-10 01:42:11,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-10 01:42:11,103 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:42:11,103 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] [2019-09-10 01:42:11,103 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:42:11,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:42:11,104 INFO L82 PathProgramCache]: Analyzing trace with hash -25799019, now seen corresponding path program 1 times [2019-09-10 01:42:11,104 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:42:11,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:42:11,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:42:11,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:42:11,106 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:42:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:42:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:42:11,419 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 01:42:11,467 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967313 could not be translated for associated CType ARRAY#_11_~DOUBLE# [2019-09-10 01:42:11,468 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967310 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2019-09-10 01:42:11,469 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967315 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2019-09-10 01:42:11,469 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967314 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2019-09-10 01:42:11,470 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967316 could not be translated for associated CType ARRAY#_11_~DOUBLE# [2019-09-10 01:42:11,470 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 4294967307 could not be translated for associated CType ARRAY#_4_~DOUBLE# [2019-09-10 01:42:11,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:42:11 BoogieIcfgContainer [2019-09-10 01:42:11,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:42:11,508 INFO L168 Benchmark]: Toolchain (without parser) took 2274.76 ms. Allocated memory was 134.7 MB in the beginning and 229.6 MB in the end (delta: 94.9 MB). Free memory was 90.3 MB in the beginning and 192.3 MB in the end (delta: -102.0 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. [2019-09-10 01:42:11,510 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 134.7 MB. Free memory is still 108.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:42:11,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 425.89 ms. Allocated memory was 134.7 MB in the beginning and 201.3 MB in the end (delta: 66.6 MB). Free memory was 89.9 MB in the beginning and 174.2 MB in the end (delta: -84.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2019-09-10 01:42:11,512 INFO L168 Benchmark]: Boogie Preprocessor took 53.01 ms. Allocated memory is still 201.3 MB. Free memory was 174.2 MB in the beginning and 171.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:42:11,514 INFO L168 Benchmark]: RCFGBuilder took 621.97 ms. Allocated memory is still 201.3 MB. Free memory was 171.7 MB in the beginning and 140.8 MB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. [2019-09-10 01:42:11,515 INFO L168 Benchmark]: TraceAbstraction took 1169.40 ms. Allocated memory was 201.3 MB in the beginning and 229.6 MB in the end (delta: 28.3 MB). Free memory was 140.8 MB in the beginning and 192.3 MB in the end (delta: -51.5 MB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. [2019-09-10 01:42:11,526 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 134.7 MB. Free memory is still 108.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 425.89 ms. Allocated memory was 134.7 MB in the beginning and 201.3 MB in the end (delta: 66.6 MB). Free memory was 89.9 MB in the beginning and 174.2 MB in the end (delta: -84.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.01 ms. Allocated memory is still 201.3 MB. Free memory was 174.2 MB in the beginning and 171.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 621.97 ms. Allocated memory is still 201.3 MB. Free memory was 171.7 MB in the beginning and 140.8 MB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1169.40 ms. Allocated memory was 201.3 MB in the beginning and 229.6 MB in the end (delta: 28.3 MB). Free memory was 140.8 MB in the beginning and 192.3 MB in the end (delta: -51.5 MB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967313 could not be translated for associated CType ARRAY#_11_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967310 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967315 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967314 could not be translated for associated CType ARRAY#_4_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967316 could not be translated for associated CType ARRAY#_11_~DOUBLE# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 4294967307 could not be translated for associated CType ARRAY#_4_~DOUBLE# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 159]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 73. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; VAL [\old(aT_atan)=null, \old(aT_atan)=null, \old(atanhi_atan)=null, \old(atanhi_atan)=null, \old(atanlo_atan)=null, \old(atanlo_atan)=null, \old(huge_atan)=4294967312, \old(one_atan)=4294967300, \old(pi)=4294967308, \old(pi_o_2)=4294967301, \old(pi_o_4)=4294967305, aT_atan={-4:0}, atanhi_atan={-2:0}, atanlo_atan={-1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L154] double x = -0.0; VAL [aT_atan={-4:0}, atanhi_atan={-2:0}, atanlo_atan={-1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L155] CALL, EXPR atan_double(x) VAL [\old(x)=0, aT_atan={-4:0}, atanhi_atan={-2:0}, atanlo_atan={-1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L65] double w, s1, s2, z; [L66] __int32_t ix, hx, id; VAL [\old(x)=0, aT_atan={-4:0}, atanhi_atan={-2:0}, atanlo_atan={-1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L69] ieee_double_shape_type gh_u; [L70] gh_u.value = (x) [L71] EXPR gh_u.parts.msw [L71] (hx) = gh_u.parts.msw [L73] ix = hx & 0x7fffffff VAL [\old(x)=0, aT_atan={-4:0}, atanhi_atan={-2:0}, atanlo_atan={-1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=3, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L74] COND TRUE ix >= 0x44100000 [L75] __uint32_t low; VAL [\old(x)=0, aT_atan={-4:0}, atanhi_atan={-2:0}, atanlo_atan={-1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=3, ix=1141899264, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L77] ieee_double_shape_type gl_u; [L78] gl_u.value = (x) [L79] EXPR gl_u.parts.lsw [L79] (low) = gl_u.parts.lsw [L81] COND FALSE !(ix > 0x7ff00000 || (ix == 0x7ff00000 && (low != 0))) VAL [\old(x)=0, aT_atan={-4:0}, atanhi_atan={-2:0}, atanlo_atan={-1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=3, ix=1141899264, low=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L83] COND TRUE hx > 0 [L84] EXPR atanhi_atan[3] [L84] EXPR atanlo_atan[3] [L84] return atanhi_atan[3] + atanlo_atan[3]; [L155] RET, EXPR atan_double(x) VAL [aT_atan={-4:0}, atan_double(x)=15707963267948966192323399573676603587/10000000000000000000000000000000000000, atanhi_atan={-2:0}, atanlo_atan={-1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=0] [L155] double res = atan_double(x); [L158] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={-4:0}, atanhi_atan={-2:0}, atanlo_atan={-1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=15707963267948966192323399573676603587/10000000000000000000000000000000000000, res == -0.0 && __signbit_double(res) == 1=0, x=0] [L158] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L159] __VERIFIER_error() VAL [aT_atan={-4:0}, atanhi_atan={-2:0}, atanlo_atan={-1:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=15707963267948966192323399573676603587/10000000000000000000000000000000000000, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 56 locations, 1 error locations. UNSAFE Result, 1.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 53 SDtfs, 30 SDslu, 225 SDs, 0 SdLazy, 57 SolverSat, 4 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 1440 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...