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_1072d.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:21:11,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:21:11,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:21:11,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 01:21:11,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:21:11,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:21:11,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:21:11,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:21:11,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:21:11,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:21:11,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:21:11,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:21:11,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:21:11,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:21:11,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:21:11,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:21:11,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:21:11,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:21:11,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:21:11,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:21:11,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:21:11,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:21:11,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:21:11,605 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:21:11,605 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:21:11,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:21:11,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:21:11,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:21:11,608 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 01:21:11,644 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:21:11,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:21:11,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:21:11,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:21:11,646 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:21:11,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:21:11,646 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:21:11,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:21:11,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:21:11,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:21:11,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:21:11,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:21:11,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:21:11,651 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:21:11,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:21:11,651 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:21:11,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:21:11,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:21:11,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:21:11,652 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:21:11,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:21:11,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:21:11,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:21:11,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:21:11,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:21:11,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:21:11,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:21:11,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:21:11,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:21:11,703 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:21:11,712 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:21:11,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:21:11,719 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:21:11,719 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:21:11,720 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1072d.c [2019-09-08 01:21:11,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2ef8bf73/3b79291fa4a24a5181b8be66828d926a/FLAG3333e876e [2019-09-08 01:21:12,242 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:21:12,242 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1072d.c [2019-09-08 01:21:12,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2ef8bf73/3b79291fa4a24a5181b8be66828d926a/FLAG3333e876e [2019-09-08 01:21:12,621 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2ef8bf73/3b79291fa4a24a5181b8be66828d926a [2019-09-08 01:21:12,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:21:12,633 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:21:12,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:12,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:21:12,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:21:12,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:12" (1/1) ... [2019-09-08 01:21:12,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ebd4b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:12, skipping insertion in model container [2019-09-08 01:21:12,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:12" (1/1) ... [2019-09-08 01:21:12,651 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:21:12,674 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:21:12,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:12,871 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:21:13,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:13,020 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:21:13,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:13 WrapperNode [2019-09-08 01:21:13,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:13,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:21:13,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:21:13,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:21:13,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:13" (1/1) ... [2019-09-08 01:21:13,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:13" (1/1) ... [2019-09-08 01:21:13,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:13" (1/1) ... [2019-09-08 01:21:13,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:13" (1/1) ... [2019-09-08 01:21:13,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:13" (1/1) ... [2019-09-08 01:21:13,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:13" (1/1) ... [2019-09-08 01:21:13,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:13" (1/1) ... [2019-09-08 01:21:13,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:21:13,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:21:13,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:21:13,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:21:13,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:13" (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 01:21:13,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:21:13,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:21:13,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2019-09-08 01:21:13,113 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_double [2019-09-08 01:21:13,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2019-09-08 01:21:13,113 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:21:13,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:21:13,114 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2019-09-08 01:21:13,114 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_double [2019-09-08 01:21:13,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:21:13,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:21:13,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:21:13,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:21:13,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:21:13,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:21:13,115 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2019-09-08 01:21:13,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:21:13,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:21:13,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:21:13,526 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:21:13,527 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-09-08 01:21:13,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:13 BoogieIcfgContainer [2019-09-08 01:21:13,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:21:13,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:21:13,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:21:13,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:21:13,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:21:12" (1/3) ... [2019-09-08 01:21:13,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d04cf3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:13, skipping insertion in model container [2019-09-08 01:21:13,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:13" (2/3) ... [2019-09-08 01:21:13,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d04cf3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:13, skipping insertion in model container [2019-09-08 01:21:13,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:13" (3/3) ... [2019-09-08 01:21:13,536 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072d.c [2019-09-08 01:21:13,545 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:21:13,552 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:21:13,568 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:21:13,596 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:21:13,596 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:21:13,597 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:21:13,597 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:21:13,597 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:21:13,597 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:21:13,597 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:21:13,597 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:21:13,598 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:21:13,616 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2019-09-08 01:21:13,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-09-08 01:21:13,622 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:13,623 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 01:21:13,625 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:13,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:13,630 INFO L82 PathProgramCache]: Analyzing trace with hash -48260949, now seen corresponding path program 1 times [2019-09-08 01:21:13,632 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:13,633 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:13,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:13,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:13,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:13,776 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 01:21:13,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:13,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:21:13,783 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:21:13,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:21:13,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:21:13,800 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2019-09-08 01:21:13,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:13,828 INFO L93 Difference]: Finished difference Result 72 states and 101 transitions. [2019-09-08 01:21:13,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:21:13,829 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2019-09-08 01:21:13,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:13,840 INFO L225 Difference]: With dead ends: 72 [2019-09-08 01:21:13,840 INFO L226 Difference]: Without dead ends: 36 [2019-09-08 01:21:13,844 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 01:21:13,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-09-08 01:21:13,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-09-08 01:21:13,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-09-08 01:21:13,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2019-09-08 01:21:13,888 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 25 [2019-09-08 01:21:13,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:13,889 INFO L475 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2019-09-08 01:21:13,889 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:21:13,889 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2019-09-08 01:21:13,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-09-08 01:21:13,891 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:13,891 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 01:21:13,892 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:13,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:13,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1916763246, now seen corresponding path program 1 times [2019-09-08 01:21:13,893 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:13,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:13,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:13,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:13,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:14,183 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:21:14,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:21:14 BoogieIcfgContainer [2019-09-08 01:21:14,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:21:14,234 INFO L168 Benchmark]: Toolchain (without parser) took 1599.04 ms. Allocated memory was 133.7 MB in the beginning and 199.2 MB in the end (delta: 65.5 MB). Free memory was 89.2 MB in the beginning and 118.0 MB in the end (delta: -28.8 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:14,236 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 133.7 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:21:14,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.69 ms. Allocated memory was 133.7 MB in the beginning and 199.2 MB in the end (delta: 65.5 MB). Free memory was 88.8 MB in the beginning and 174.2 MB in the end (delta: -85.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:14,239 INFO L168 Benchmark]: Boogie Preprocessor took 44.46 ms. Allocated memory is still 199.2 MB. Free memory was 174.2 MB in the beginning and 172.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:14,240 INFO L168 Benchmark]: RCFGBuilder took 462.30 ms. Allocated memory is still 199.2 MB. Free memory was 171.8 MB in the beginning and 148.3 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:14,241 INFO L168 Benchmark]: TraceAbstraction took 700.84 ms. Allocated memory is still 199.2 MB. Free memory was 148.3 MB in the beginning and 118.0 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:14,251 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 133.7 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 384.69 ms. Allocated memory was 133.7 MB in the beginning and 199.2 MB in the end (delta: 65.5 MB). Free memory was 88.8 MB in the beginning and 174.2 MB in the end (delta: -85.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.46 ms. Allocated memory is still 199.2 MB. Free memory was 174.2 MB in the beginning and 172.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 462.30 ms. Allocated memory is still 199.2 MB. Free memory was 171.8 MB in the beginning and 148.3 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 700.84 ms. Allocated memory is still 199.2 MB. Free memory was 148.3 MB in the beginning and 118.0 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 89]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 72, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 71. Possible FailurePath: [L84] double x = -1.0 / 0.0; [L85] CALL, EXPR trunc_double(x) VAL [\old(x)=4294967295] [L18] int signbit; [L19] int msw; [L20] unsigned int lsw; [L21] int exponent_less_1023; VAL [\old(x)=4294967295, x=4294967295] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L28] signbit = msw & 0x80000000 [L29] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=4294967295, exponent_less_1023=1024, lsw=9, msw=0, signbit=-1, x=4294967295] [L30] COND FALSE !(exponent_less_1023 < 20) VAL [\old(x)=4294967295, exponent_less_1023=1024, lsw=9, msw=0, signbit=-1, x=4294967295] [L47] COND TRUE exponent_less_1023 > 51 VAL [\old(x)=4294967295, exponent_less_1023=1024, lsw=9, msw=0, signbit=-1, x=4294967295] [L48] COND TRUE exponent_less_1023 == 1024 [L49] return x + x; VAL [\old(x)=4294967295, exponent_less_1023=1024, lsw=9, msw=0, signbit=-1, x=4294967295] [L85] RET, EXPR trunc_double(x) VAL [trunc_double(x)=4294967298, x=4294967295] [L85] double res = trunc_double(x); [L88] CALL, EXPR isinf_double(res) VAL [\old(x)=4294967298] [L64] __int32_t hx, lx; VAL [\old(x)=4294967298, x=4294967298] [L66] ieee_double_shape_type ew_u; [L67] ew_u.value = (x) [L68] EXPR ew_u.parts.msw [L68] (hx) = ew_u.parts.msw [L69] EXPR ew_u.parts.lsw [L69] (lx) = ew_u.parts.lsw [L71] hx &= 0x7fffffff [L72] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L73] hx = 0x7ff00000 - hx [L74] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=4294967298, \result=0, hx=2146435073, lx=-2, x=4294967298] [L88] RET, EXPR isinf_double(res) VAL [isinf_double(res)=0, res=4294967298, x=4294967295] [L88] COND TRUE !isinf_double(res) [L89] __VERIFIER_error() VAL [res=4294967298, x=4294967295] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 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=40occurred 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...