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/float_req_bl_1071.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:23:23,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:23:23,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:23:23,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 01:23:23,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:23:23,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:23:23,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:23:23,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:23:23,139 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:23:23,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:23:23,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:23:23,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:23:23,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:23:23,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:23:23,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:23:23,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:23:23,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:23:23,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:23:23,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:23:23,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:23:23,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:23:23,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:23:23,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:23:23,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:23:23,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:23:23,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:23:23,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:23:23,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:23:23,161 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 01:23:23,182 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:23:23,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:23:23,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:23:23,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:23:23,185 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:23:23,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:23:23,185 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:23:23,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:23:23,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:23:23,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:23:23,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:23:23,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:23:23,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:23:23,187 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:23:23,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:23:23,187 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:23:23,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:23:23,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:23:23,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:23:23,189 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:23:23,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:23:23,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:23:23,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:23:23,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:23:23,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:23:23,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:23:23,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:23:23,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:23:23,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:23:23,234 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:23:23,246 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:23:23,250 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:23:23,251 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:23:23,252 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:23:23,253 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1071.c [2019-09-08 01:23:23,318 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/738336eb8/a9b2925ac12d4d10a41415962886d8b4/FLAGbdadd418c [2019-09-08 01:23:23,790 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:23:23,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1071.c [2019-09-08 01:23:23,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/738336eb8/a9b2925ac12d4d10a41415962886d8b4/FLAGbdadd418c [2019-09-08 01:23:24,185 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/738336eb8/a9b2925ac12d4d10a41415962886d8b4 [2019-09-08 01:23:24,197 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:23:24,199 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:23:24,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:23:24,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:23:24,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:23:24,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:23:24" (1/1) ... [2019-09-08 01:23:24,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1699d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:24, skipping insertion in model container [2019-09-08 01:23:24,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:23:24" (1/1) ... [2019-09-08 01:23:24,215 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:23:24,230 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:23:24,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:23:24,411 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:23:24,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:23:24,574 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:23:24,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:24 WrapperNode [2019-09-08 01:23:24,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:23:24,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:23:24,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:23:24,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:23:24,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:24" (1/1) ... [2019-09-08 01:23:24,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:24" (1/1) ... [2019-09-08 01:23:24,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:24" (1/1) ... [2019-09-08 01:23:24,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:24" (1/1) ... [2019-09-08 01:23:24,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:24" (1/1) ... [2019-09-08 01:23:24,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:24" (1/1) ... [2019-09-08 01:23:24,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:24" (1/1) ... [2019-09-08 01:23:24,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:23:24,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:23:24,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:23:24,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:23:24,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:24" (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 01:23:24,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:23:24,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:23:24,668 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2019-09-08 01:23:24,668 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2019-09-08 01:23:24,669 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:23:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:23:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2019-09-08 01:23:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:23:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:23:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:23:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:23:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:23:24,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:23:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2019-09-08 01:23:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:23:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:23:24,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:23:24,990 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:23:24,990 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-09-08 01:23:24,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:23:24 BoogieIcfgContainer [2019-09-08 01:23:24,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:23:24,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:23:24,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:23:24,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:23:24,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:23:24" (1/3) ... [2019-09-08 01:23:24,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f9ab5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:23:24, skipping insertion in model container [2019-09-08 01:23:24,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:24" (2/3) ... [2019-09-08 01:23:24,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f9ab5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:23:24, skipping insertion in model container [2019-09-08 01:23:24,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:23:24" (3/3) ... [2019-09-08 01:23:24,999 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071.c [2019-09-08 01:23:25,009 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:23:25,016 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:23:25,033 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:23:25,064 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:23:25,065 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:23:25,065 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:23:25,065 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:23:25,066 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:23:25,066 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:23:25,066 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:23:25,066 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:23:25,066 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:23:25,085 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-09-08 01:23:25,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-09-08 01:23:25,091 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:23:25,091 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] [2019-09-08 01:23:25,093 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:23:25,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:23:25,099 INFO L82 PathProgramCache]: Analyzing trace with hash 846806543, now seen corresponding path program 1 times [2019-09-08 01:23:25,101 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:23:25,101 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:23:25,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:25,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:23:25,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:23:25,235 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 01:23:25,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:23:25,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:23:25,242 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:23:25,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:23:25,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:23:25,260 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-09-08 01:23:25,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:23:25,284 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions. [2019-09-08 01:23:25,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:23:25,286 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-09-08 01:23:25,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:23:25,297 INFO L225 Difference]: With dead ends: 60 [2019-09-08 01:23:25,297 INFO L226 Difference]: Without dead ends: 30 [2019-09-08 01:23:25,301 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 01:23:25,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-09-08 01:23:25,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-09-08 01:23:25,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-09-08 01:23:25,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2019-09-08 01:23:25,345 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 22 [2019-09-08 01:23:25,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:23:25,346 INFO L475 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2019-09-08 01:23:25,346 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:23:25,346 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2019-09-08 01:23:25,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-09-08 01:23:25,347 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:23:25,348 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] [2019-09-08 01:23:25,348 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:23:25,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:23:25,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1446285465, now seen corresponding path program 1 times [2019-09-08 01:23:25,349 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:23:25,349 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:23:25,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:25,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:23:25,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:23:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:23:25,530 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:23:25,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:23:25 BoogieIcfgContainer [2019-09-08 01:23:25,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:23:25,582 INFO L168 Benchmark]: Toolchain (without parser) took 1381.25 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 88.7 MB in the beginning and 130.8 MB in the end (delta: -42.1 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:25,584 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 133.2 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:23:25,586 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.37 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 88.5 MB in the beginning and 176.7 MB in the end (delta: -88.2 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:25,588 INFO L168 Benchmark]: Boogie Preprocessor took 37.04 ms. Allocated memory is still 199.8 MB. Free memory was 176.7 MB in the beginning and 173.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:25,589 INFO L168 Benchmark]: RCFGBuilder took 378.62 ms. Allocated memory is still 199.8 MB. Free memory was 173.8 MB in the beginning and 156.4 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:25,590 INFO L168 Benchmark]: TraceAbstraction took 585.84 ms. Allocated memory is still 199.8 MB. Free memory was 156.4 MB in the beginning and 130.8 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:25,601 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 133.2 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 375.37 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 88.5 MB in the beginning and 176.7 MB in the end (delta: -88.2 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.04 ms. Allocated memory is still 199.8 MB. Free memory was 176.7 MB in the beginning and 173.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 378.62 ms. Allocated memory is still 199.8 MB. Free memory was 173.8 MB in the beginning and 156.4 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 585.84 ms. Allocated memory is still 199.8 MB. Free memory was 156.4 MB in the beginning and 130.8 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 57]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 38, overapproximation of bitwiseAnd at line 19. Possible FailurePath: [L52] float x = 0.0f / 0.0f; [L53] CALL, EXPR trunc_float(x) VAL [\old(x)=4294967298] [L13] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=4294967298, x=4294967298] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (w) = gf_u.word [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=4294967298, exponent_less_127=255, signbit=-1, w=-2, x=4294967298] [L21] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=4294967298, exponent_less_127=255, signbit=-1, w=-2, x=4294967298] [L37] COND TRUE exponent_less_127 == 255 [L38] return x + x; VAL [\old(x)=4294967298, exponent_less_127=255, signbit=-1, w=-2, x=4294967298] [L53] RET, EXPR trunc_float(x) VAL [trunc_float(x)=4294967296, x=4294967298] [L53] float res = trunc_float(x); [L56] CALL, EXPR isnan_float(res) VAL [\old(x)=4294967296] [L44] return x != x; VAL [\old(x)=4294967296, \result=0, x=4294967296] [L56] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=4294967296, x=4294967298] [L56] COND TRUE !isnan_float(res) [L57] __VERIFIER_error() VAL [res=4294967296, x=4294967298] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 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=34occurred 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, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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...