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_1052d.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:21:06,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:21:06,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:21:06,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:21:06,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:21:06,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:21:06,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:21:06,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:21:06,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:21:06,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:21:06,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:21:06,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:21:06,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:21:06,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:21:06,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:21:06,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:21:06,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:21:06,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:21:06,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:21:06,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:21:06,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:21:06,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:21:06,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:21:06,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:21:06,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 01:21:06,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 01:21:06,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 01:21:06,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 01:21:06,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 01:21:06,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 01:21:06,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:21:06,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:21:06,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:21:06,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:21:06,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:21:06,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:21:06,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:21:06,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:21:06,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:21:06,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:21:06,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:21:06,870 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 01:21:06,893 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:21:06,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:21:06,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:21:06,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:21:06,895 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:21:06,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:21:06,896 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:21:06,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:21:06,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:21:06,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:21:06,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:21:06,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:21:06,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:21:06,898 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:21:06,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:21:06,899 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:21:06,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:21:06,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:21:06,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:21:06,900 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:21:06,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:21:06,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:21:06,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:21:06,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:21:06,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:21:06,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:21:06,901 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:21:06,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:21:06,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:21:06,946 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:21:06,957 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:21:06,960 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:21:06,962 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:21:06,962 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:21:06,963 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052d.c [2019-09-08 01:21:07,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5abd16045/2d656cda6a3d435ba38f992b5b8c951e/FLAG5eba761e9 [2019-09-08 01:21:07,463 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:21:07,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1052d.c [2019-09-08 01:21:07,469 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5abd16045/2d656cda6a3d435ba38f992b5b8c951e/FLAG5eba761e9 [2019-09-08 01:21:07,832 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5abd16045/2d656cda6a3d435ba38f992b5b8c951e [2019-09-08 01:21:07,842 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:21:07,844 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:21:07,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:07,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:21:07,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:21:07,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:07" (1/1) ... [2019-09-08 01:21:07,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@671ed55f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:07, skipping insertion in model container [2019-09-08 01:21:07,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:21:07" (1/1) ... [2019-09-08 01:21:07,859 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:21:07,879 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:21:08,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:08,053 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:21:08,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:21:08,221 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:21:08,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:08 WrapperNode [2019-09-08 01:21:08,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:21:08,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:21:08,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:21:08,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:21:08,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:08" (1/1) ... [2019-09-08 01:21:08,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:08" (1/1) ... [2019-09-08 01:21:08,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:08" (1/1) ... [2019-09-08 01:21:08,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:08" (1/1) ... [2019-09-08 01:21:08,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:08" (1/1) ... [2019-09-08 01:21:08,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:08" (1/1) ... [2019-09-08 01:21:08,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:08" (1/1) ... [2019-09-08 01:21:08,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:21:08,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:21:08,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:21:08,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:21:08,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:08" (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 01:21:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:21:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:21:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2019-09-08 01:21:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2019-09-08 01:21:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:21:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:21:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2019-09-08 01:21:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:21:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:21:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:21:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:21:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:21:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:21:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2019-09-08 01:21:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:21:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:21:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:21:08,721 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:21:08,721 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-09-08 01:21:08,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:08 BoogieIcfgContainer [2019-09-08 01:21:08,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:21:08,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:21:08,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:21:08,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:21:08,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:21:07" (1/3) ... [2019-09-08 01:21:08,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b94039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:08, skipping insertion in model container [2019-09-08 01:21:08,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:21:08" (2/3) ... [2019-09-08 01:21:08,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b94039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:21:08, skipping insertion in model container [2019-09-08 01:21:08,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:21:08" (3/3) ... [2019-09-08 01:21:08,730 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052d.c [2019-09-08 01:21:08,747 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:21:08,760 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:21:08,774 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:21:08,801 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:21:08,801 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:21:08,801 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:21:08,801 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:21:08,802 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:21:08,802 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:21:08,802 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:21:08,802 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:21:08,802 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:21:08,818 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2019-09-08 01:21:08,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-08 01:21:08,824 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:08,825 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:21:08,826 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:08,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:08,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1202696015, now seen corresponding path program 1 times [2019-09-08 01:21:08,832 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:08,833 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:08,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:08,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:08,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:21:08,958 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 01:21:08,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:21:08,961 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:21:08,965 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:21:08,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:21:08,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:21:08,980 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 2 states. [2019-09-08 01:21:09,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:21:09,007 INFO L93 Difference]: Finished difference Result 94 states and 139 transitions. [2019-09-08 01:21:09,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:21:09,008 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-09-08 01:21:09,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:21:09,018 INFO L225 Difference]: With dead ends: 94 [2019-09-08 01:21:09,019 INFO L226 Difference]: Without dead ends: 47 [2019-09-08 01:21:09,022 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 01:21:09,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-09-08 01:21:09,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-09-08 01:21:09,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-09-08 01:21:09,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2019-09-08 01:21:09,065 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 19 [2019-09-08 01:21:09,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:21:09,065 INFO L475 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2019-09-08 01:21:09,066 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:21:09,066 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2019-09-08 01:21:09,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-08 01:21:09,067 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:21:09,068 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:21:09,068 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:21:09,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:21:09,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1688222156, now seen corresponding path program 1 times [2019-09-08 01:21:09,069 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:21:09,069 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:21:09,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:09,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:21:09,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:21:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:21:09,181 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:21:09,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:21:09 BoogieIcfgContainer [2019-09-08 01:21:09,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:21:09,211 INFO L168 Benchmark]: Toolchain (without parser) took 1366.76 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 88.7 MB in the beginning and 123.9 MB in the end (delta: -35.2 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:09,212 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 132.6 MB. Free memory was 107.0 MB in the beginning and 106.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:21:09,213 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.17 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 88.3 MB in the beginning and 174.5 MB in the end (delta: -86.2 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:09,214 INFO L168 Benchmark]: Boogie Preprocessor took 68.18 ms. Allocated memory is still 199.2 MB. Free memory was 174.5 MB in the beginning and 172.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:09,216 INFO L168 Benchmark]: RCFGBuilder took 431.10 ms. Allocated memory is still 199.2 MB. Free memory was 172.7 MB in the beginning and 149.8 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:09,217 INFO L168 Benchmark]: TraceAbstraction took 485.08 ms. Allocated memory is still 199.2 MB. Free memory was 149.2 MB in the beginning and 123.9 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:21:09,229 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 132.6 MB. Free memory was 107.0 MB in the beginning and 106.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 378.17 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 88.3 MB in the beginning and 174.5 MB in the end (delta: -86.2 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 68.18 ms. Allocated memory is still 199.2 MB. Free memory was 174.5 MB in the beginning and 172.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 431.10 ms. Allocated memory is still 199.2 MB. Free memory was 172.7 MB in the beginning and 149.8 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 485.08 ms. Allocated memory is still 199.2 MB. Free memory was 149.2 MB in the beginning and 123.9 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 102. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [\old(huge_floor)=8589934593, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L98] double x = 0.0; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L99] CALL, EXPR floor_double(x) VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [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)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2, i1=-1, x=0] [L26] COND TRUE j0 < 20 VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2, i1=-1, j0=0, x=0] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2, i1=-1, j0=0, x=0] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; VAL [\old(x)=0, \result=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2, i1=-1, j0=0, x=0] [L99] RET, EXPR floor_double(x) VAL [floor_double(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L99] double res = floor_double(x); [L102] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, res == 0.0 && __signbit_double(res) == 0=0, x=0] [L102] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L103] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 51 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 66 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=51occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 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...