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_1092c.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:21:14,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:21:14,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:21:14,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 01:21:14,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:21:14,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:21:14,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:21:14,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:21:14,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:21:14,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:21:14,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:21:14,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:21:14,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:21:14,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:21:14,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:21:14,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:21:14,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:21:14,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:21:14,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:21:14,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:21:14,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:21:14,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:21:14,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:21:14,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:21:14,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:21:14,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:21:14,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:21:14,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:21:14,240 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 01:21:14,270 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:21:14,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:21:14,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:21:14,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:21:14,273 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:21:14,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:21:14,273 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:21:14,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:21:14,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:21:14,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:21:14,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:21:14,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:21:14,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:21:14,276 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:21:14,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:21:14,277 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:21:14,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:21:14,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:21:14,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:21:14,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:21:14,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:21:14,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:21:14,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:21:14,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:21:14,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:21:14,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:21:14,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:21:14,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:21:14,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:21:14,337 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:21:14,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:21:14,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:21:14,365 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:21:14,367 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:21:14,368 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092c.c [2019-09-08 01:21:14,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cddd327b5/eabe1f13b09d4b2b8faa8112bf6fc90d/FLAG0d2bbe03b [2019-09-08 01:21:14,874 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:21:14,875 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092c.c [2019-09-08 01:21:14,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cddd327b5/eabe1f13b09d4b2b8faa8112bf6fc90d/FLAG0d2bbe03b [2019-09-08 01:21:15,277 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cddd327b5/eabe1f13b09d4b2b8faa8112bf6fc90d [2019-09-08 01:21:15,289 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:21:15,291 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:21:15,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:15,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:21:15,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:21:15,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:15" (1/1) ... [2019-09-08 01:21:15,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24d8d0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:15, skipping insertion in model container [2019-09-08 01:21:15,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:15" (1/1) ... [2019-09-08 01:21:15,308 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:21:15,329 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:21:15,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:15,521 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:21:15,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:15,686 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:21:15,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:15 WrapperNode [2019-09-08 01:21:15,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:15,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:21:15,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:21:15,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:21:15,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:15" (1/1) ... [2019-09-08 01:21:15,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:15" (1/1) ... [2019-09-08 01:21:15,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:15" (1/1) ... [2019-09-08 01:21:15,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:15" (1/1) ... [2019-09-08 01:21:15,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:15" (1/1) ... [2019-09-08 01:21:15,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:15" (1/1) ... [2019-09-08 01:21:15,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:15" (1/1) ... [2019-09-08 01:21:15,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:21:15,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:21:15,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:21:15,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:21:15,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:21:15,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:21:15,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:21:15,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2019-09-08 01:21:15,804 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2019-09-08 01:21:15,804 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:21:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:21:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2019-09-08 01:21:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:21:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:21:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:21:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:21:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:21:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:21:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2019-09-08 01:21:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:21:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:21:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:21:16,244 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:21:16,245 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-09-08 01:21:16,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:16 BoogieIcfgContainer [2019-09-08 01:21:16,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:21:16,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:21:16,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:21:16,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:21:16,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:21:15" (1/3) ... [2019-09-08 01:21:16,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a757b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:16, skipping insertion in model container [2019-09-08 01:21:16,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:15" (2/3) ... [2019-09-08 01:21:16,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a757b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:16, skipping insertion in model container [2019-09-08 01:21:16,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:16" (3/3) ... [2019-09-08 01:21:16,253 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092c.c [2019-09-08 01:21:16,263 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:21:16,275 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:21:16,292 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:21:16,319 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:21:16,319 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:21:16,320 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:21:16,320 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:21:16,320 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:21:16,320 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:21:16,320 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:21:16,320 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:21:16,320 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:21:16,337 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2019-09-08 01:21:16,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-09-08 01:21:16,343 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:16,344 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:21:16,346 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:16,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:16,351 INFO L82 PathProgramCache]: Analyzing trace with hash -661893902, now seen corresponding path program 1 times [2019-09-08 01:21:16,352 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:16,353 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:16,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:16,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:16,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:16,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:21:16,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:16,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:21:16,508 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:21:16,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:21:16,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:21:16,527 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2019-09-08 01:21:16,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:16,559 INFO L93 Difference]: Finished difference Result 92 states and 135 transitions. [2019-09-08 01:21:16,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:21:16,561 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2019-09-08 01:21:16,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:16,573 INFO L225 Difference]: With dead ends: 92 [2019-09-08 01:21:16,574 INFO L226 Difference]: Without dead ends: 46 [2019-09-08 01:21:16,578 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:21:16,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-09-08 01:21:16,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-09-08 01:21:16,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-09-08 01:21:16,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 60 transitions. [2019-09-08 01:21:16,634 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 60 transitions. Word has length 25 [2019-09-08 01:21:16,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:16,634 INFO L475 AbstractCegarLoop]: Abstraction has 46 states and 60 transitions. [2019-09-08 01:21:16,635 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:21:16,635 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2019-09-08 01:21:16,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-09-08 01:21:16,636 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:16,637 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:21:16,637 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:16,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:16,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1235447049, now seen corresponding path program 1 times [2019-09-08 01:21:16,638 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:16,638 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:16,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:16,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:16,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:16,945 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:21:16,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:21:16 BoogieIcfgContainer [2019-09-08 01:21:16,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:21:16,993 INFO L168 Benchmark]: Toolchain (without parser) took 1700.92 ms. Allocated memory was 133.7 MB in the beginning and 201.3 MB in the end (delta: 67.6 MB). Free memory was 89.3 MB in the beginning and 119.1 MB in the end (delta: -29.8 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:16,994 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 133.7 MB. Free memory was 108.1 MB in the beginning and 107.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:21:16,995 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.76 ms. Allocated memory was 133.7 MB in the beginning and 201.3 MB in the end (delta: 67.6 MB). Free memory was 89.1 MB in the beginning and 176.6 MB in the end (delta: -87.5 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:16,996 INFO L168 Benchmark]: Boogie Preprocessor took 45.81 ms. Allocated memory is still 201.3 MB. Free memory was 176.6 MB in the beginning and 174.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:16,997 INFO L168 Benchmark]: RCFGBuilder took 512.02 ms. Allocated memory is still 201.3 MB. Free memory was 174.7 MB in the beginning and 150.8 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:16,998 INFO L168 Benchmark]: TraceAbstraction took 743.44 ms. Allocated memory is still 201.3 MB. Free memory was 150.8 MB in the beginning and 119.1 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:17,002 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 133.7 MB. Free memory was 108.1 MB in the beginning and 107.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 395.76 ms. Allocated memory was 133.7 MB in the beginning and 201.3 MB in the end (delta: 67.6 MB). Free memory was 89.1 MB in the beginning and 176.6 MB in the end (delta: -87.5 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.81 ms. Allocated memory is still 201.3 MB. Free memory was 176.6 MB in the beginning and 174.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 512.02 ms. Allocated memory is still 201.3 MB. Free memory was 174.7 MB in the beginning and 150.8 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 743.44 ms. Allocated memory is still 201.3 MB. Free memory was 150.8 MB in the beginning and 119.1 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 107]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 38, overapproximation of bitwiseOr at line 90, overapproximation of someBinaryArithmeticDOUBLEoperation at line 103, overapproximation of bitwiseAnd at line 89. Possible FailurePath: [L14] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=8589934596, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L103] double x = 1.0 / 0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] CALL, EXPR ceil_double(x) VAL [\old(x)=8589934598, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=8589934598, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934598] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=8589934598, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-1, i1=-2, x=8589934598] [L26] COND TRUE j0 < 20 VAL [\old(x)=8589934598, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-1, i1=-2, j0=0, x=8589934598] [L27] COND FALSE !(j0 < 0) [L38] i = (0x000fffff) >> j0 VAL [\old(x)=8589934598, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-1, i1=-2, j0=0, x=8589934598] [L39] COND TRUE ((i0 & i) | i1) == 0 [L40] return x; VAL [\old(x)=8589934598, \result=8589934598, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-1, i1=-2, j0=0, x=8589934598] [L104] RET, EXPR ceil_double(x) VAL [ceil_double(x)=8589934598, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934598] [L104] double res = ceil_double(x); [L106] CALL, EXPR isinf_double(res) VAL [\old(x)=8589934598, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L82] __int32_t hx, lx; VAL [\old(x)=8589934598, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=8589934598] [L84] ieee_double_shape_type ew_u; [L85] ew_u.value = (x) [L86] EXPR ew_u.parts.msw [L86] (hx) = ew_u.parts.msw [L87] EXPR ew_u.parts.lsw [L87] (lx) = ew_u.parts.lsw [L89] hx &= 0x7fffffff [L90] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L91] hx = 0x7ff00000 - hx [L92] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=8589934598, \result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435072, lx=-4, x=8589934598] [L106] RET, EXPR isinf_double(res) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isinf_double(res)=0, res=8589934598, x=8589934598] [L106] COND TRUE !isinf_double(res) [L107] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=8589934598, x=8589934598] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 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=50occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 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...