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-benchs/rlim_invariant.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:15:17,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:15:17,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:15:17,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:15:17,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:15:17,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:15:17,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:15:17,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:15:17,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:15:17,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:15:17,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:15:17,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:15:17,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:15:17,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:15:17,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:15:17,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:15:17,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:15:17,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:15:17,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:15:17,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:15:17,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:15:17,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:15:17,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:15:17,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:15:17,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:15:17,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:15:17,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:15:17,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:15:17,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:15:17,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:15:17,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:15:17,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:15:17,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:15:17,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:15:17,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:15:17,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:15:17,160 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 01:15:17,175 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:15:17,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:15:17,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:15:17,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:15:17,177 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:15:17,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:15:17,177 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:15:17,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:15:17,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:15:17,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:15:17,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:15:17,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:15:17,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:15:17,178 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:15:17,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:15:17,179 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:15:17,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:15:17,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:15:17,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:15:17,180 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:15:17,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:15:17,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:15:17,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:15:17,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:15:17,181 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:15:17,181 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:15:17,181 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:15:17,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:15:17,182 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:15:17,210 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:15:17,223 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:15:17,226 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:15:17,227 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:15:17,228 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:15:17,228 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/rlim_invariant.c.v+lhb-reducer.c [2019-09-08 01:15:17,286 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ad76c984/ee916c5aafc846d58e34376068586dd8/FLAGa45314e0f [2019-09-08 01:15:17,728 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:15:17,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/rlim_invariant.c.v+lhb-reducer.c [2019-09-08 01:15:17,736 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ad76c984/ee916c5aafc846d58e34376068586dd8/FLAGa45314e0f [2019-09-08 01:15:18,136 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ad76c984/ee916c5aafc846d58e34376068586dd8 [2019-09-08 01:15:18,147 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:15:18,149 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:15:18,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:15:18,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:15:18,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:15:18,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:15:18" (1/1) ... [2019-09-08 01:15:18,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2787605e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:18, skipping insertion in model container [2019-09-08 01:15:18,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:15:18" (1/1) ... [2019-09-08 01:15:18,167 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:15:18,207 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:15:18,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:15:18,439 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:15:18,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:15:18,589 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:15:18,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:18 WrapperNode [2019-09-08 01:15:18,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:15:18,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:15:18,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:15:18,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:15:18,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:18" (1/1) ... [2019-09-08 01:15:18,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:18" (1/1) ... [2019-09-08 01:15:18,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:18" (1/1) ... [2019-09-08 01:15:18,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:18" (1/1) ... [2019-09-08 01:15:18,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:18" (1/1) ... [2019-09-08 01:15:18,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:18" (1/1) ... [2019-09-08 01:15:18,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:18" (1/1) ... [2019-09-08 01:15:18,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:15:18,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:15:18,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:15:18,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:15:18,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:18" (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 01:15:18,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:15:18,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:15:18,684 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:15:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:15:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-08 01:15:18,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 01:15:18,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-08 01:15:18,685 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:15:18,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:15:18,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:15:19,026 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:15:19,026 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 01:15:19,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:15:19 BoogieIcfgContainer [2019-09-08 01:15:19,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:15:19,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:15:19,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:15:19,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:15:19,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:15:18" (1/3) ... [2019-09-08 01:15:19,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fad917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:15:19, skipping insertion in model container [2019-09-08 01:15:19,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:15:18" (2/3) ... [2019-09-08 01:15:19,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fad917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:15:19, skipping insertion in model container [2019-09-08 01:15:19,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:15:19" (3/3) ... [2019-09-08 01:15:19,043 INFO L109 eAbstractionObserver]: Analyzing ICFG rlim_invariant.c.v+lhb-reducer.c [2019-09-08 01:15:19,053 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:15:19,060 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-09-08 01:15:19,076 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-09-08 01:15:19,107 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:15:19,108 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:15:19,108 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:15:19,108 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:15:19,108 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:15:19,108 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:15:19,109 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:15:19,109 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:15:19,109 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:15:19,126 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2019-09-08 01:15:19,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-08 01:15:19,132 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:15:19,133 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 01:15:19,135 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:15:19,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:15:19,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1836001814, now seen corresponding path program 1 times [2019-09-08 01:15:19,142 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:15:19,142 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:15:19,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:15:19,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:15:19,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:15:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:15:19,308 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 01:15:19,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:15:19,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 01:15:19,315 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 01:15:19,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 01:15:19,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:15:19,332 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2019-09-08 01:15:19,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:15:19,406 INFO L93 Difference]: Finished difference Result 78 states and 113 transitions. [2019-09-08 01:15:19,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 01:15:19,408 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-09-08 01:15:19,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:15:19,426 INFO L225 Difference]: With dead ends: 78 [2019-09-08 01:15:19,426 INFO L226 Difference]: Without dead ends: 66 [2019-09-08 01:15:19,431 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 01:15:19,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-09-08 01:15:19,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 45. [2019-09-08 01:15:19,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-09-08 01:15:19,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions. [2019-09-08 01:15:19,505 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 57 transitions. Word has length 20 [2019-09-08 01:15:19,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:15:19,507 INFO L475 AbstractCegarLoop]: Abstraction has 45 states and 57 transitions. [2019-09-08 01:15:19,507 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 01:15:19,508 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions. [2019-09-08 01:15:19,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-08 01:15:19,510 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:15:19,511 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 01:15:19,511 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:15:19,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:15:19,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1751306001, now seen corresponding path program 1 times [2019-09-08 01:15:19,513 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:15:19,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:15:19,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:15:19,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:15:19,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:15:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:15:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:15:19,636 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:15:19,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:15:19 BoogieIcfgContainer [2019-09-08 01:15:19,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:15:19,714 INFO L168 Benchmark]: Toolchain (without parser) took 1564.05 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 92.0 MB in the beginning and 127.5 MB in the end (delta: -35.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. [2019-09-08 01:15:19,715 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 110.4 MB in the beginning and 110.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:15:19,716 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.75 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 91.8 MB in the beginning and 178.1 MB in the end (delta: -86.3 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:15:19,717 INFO L168 Benchmark]: Boogie Preprocessor took 38.42 ms. Allocated memory is still 201.9 MB. Free memory was 177.5 MB in the beginning and 175.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:15:19,718 INFO L168 Benchmark]: RCFGBuilder took 399.25 ms. Allocated memory is still 201.9 MB. Free memory was 175.8 MB in the beginning and 156.7 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2019-09-08 01:15:19,719 INFO L168 Benchmark]: TraceAbstraction took 676.25 ms. Allocated memory is still 201.9 MB. Free memory was 156.7 MB in the beginning and 127.5 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:15:19,723 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 110.4 MB in the beginning and 110.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 438.75 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 91.8 MB in the beginning and 178.1 MB in the end (delta: -86.3 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.42 ms. Allocated memory is still 201.9 MB. Free memory was 177.5 MB in the beginning and 175.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 399.25 ms. Allocated memory is still 201.9 MB. Free memory was 175.8 MB in the beginning and 156.7 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 676.25 ms. Allocated memory is still 201.9 MB. Free memory was 156.7 MB in the beginning and 127.5 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 62]: 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 someBinaryDOUBLEComparisonOperation at line 49, overapproximation of to_real at line 19, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L1] int __return_main; [L7] int __tmp_160_0; [L8] int __tmp_160_1; [L9] int __tmp_160_2; [L10] int __return_165; VAL [\old(__return_165)=5, \old(__return_main)=2, \old(__tmp_160_0)=8, \old(__tmp_160_1)=6, \old(__tmp_160_2)=7, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L13] float main__X; [L14] float main__Y; [L15] float main__S; [L16] float main__R; [L17] float main__D; [L18] int main__i; [L19] main__Y = 0 [L20] main__i = 0 VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__i=0] [L21] COND TRUE main__i < 100000 [L23] main__X = __VERIFIER_nondet_float() [L24] main__D = __VERIFIER_nondet_float() [L25] int main____CPAchecker_TMP_0; VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__D=1, main__i=0, main__X=3] [L26] COND TRUE main__X >= -128.0 VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__D=1, main__i=0, main__X=3] [L28] COND TRUE main__X <= 128.0 [L30] main____CPAchecker_TMP_0 = 1 VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__D=1, main__i=0, main__X=3] [L31] COND TRUE main____CPAchecker_TMP_0 != 0 [L33] int main____CPAchecker_TMP_1; VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__D=1, main__i=0, main__X=3] [L34] COND TRUE main__D >= 0.0 VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__D=1, main__i=0, main__X=3] [L36] COND TRUE main__D <= 16.0 [L38] main____CPAchecker_TMP_1 = 1 VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=1, main__i=0, main__X=3] [L39] COND TRUE main____CPAchecker_TMP_1 != 0 [L41] main__S = main__Y [L42] main__Y = main__X [L43] main__R = main__X - main__S VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=1, main__i=0, main__S=4, main__X=3, main__Y=3] [L44] COND TRUE main__R <= (-main__D) [L46] main__Y = main__S - main__D VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=1, main__i=0, main__S=4, main__X=3] [L48] int main____CPAchecker_TMP_2; VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=1, main__i=0, main__S=4, main__X=3] [L49] COND FALSE !(main__Y >= -129.0) VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__D=1, main__i=0, main__S=4, main__X=3] [L200] main____CPAchecker_TMP_2 = 0 VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=1, main__i=0, main__S=4, main__X=3] [L56] int __tmp_1; [L57] __tmp_1 = main____CPAchecker_TMP_2 [L58] int __VERIFIER_assert__cond; [L59] __VERIFIER_assert__cond = __tmp_1 VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=1, main__i=0, main__S=4, main__X=3] [L60] COND TRUE __VERIFIER_assert__cond == 0 VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=1, main__i=0, main__S=4, main__X=3] [L62] __VERIFIER_error() VAL [\old(__return_165)=0, \old(__tmp_160_0)=0, \old(__tmp_160_1)=0, \old(__tmp_160_2)=0, __return_165=0, __return_main=0, __tmp_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__D=1, main__i=0, main__S=4, main__X=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 47 locations, 2 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 36 SDslu, 130 SDs, 0 SdLazy, 10 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 21 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 437 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...