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/interpolation.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:12:46,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:12:46,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:12:46,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:12:46,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:12:46,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:12:46,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:12:46,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:12:46,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:12:46,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:12:46,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:12:46,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:12:46,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:12:46,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:12:46,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:12:46,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:12:46,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:12:46,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:12:46,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:12:46,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:12:46,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:12:46,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:12:46,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:12:46,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:12:46,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:12:46,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:12:46,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:12:46,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:12:46,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:12:46,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:12:46,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:12:46,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:12:46,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:12:46,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:12:46,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:12:46,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:12:46,940 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 01:12:46,968 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:12:46,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:12:46,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:12:46,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:12:46,970 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:12:46,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:12:46,971 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:12:46,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:12:46,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:12:46,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:12:46,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:12:46,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:12:46,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:12:46,972 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:12:46,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:12:46,973 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:12:46,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:12:46,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:12:46,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:12:46,974 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:12:46,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:12:46,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:12:46,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:12:46,975 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:12:46,975 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:12:46,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:12:46,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:12:46,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:12:46,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:12:47,005 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:12:47,020 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:12:47,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:12:47,025 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:12:47,026 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:12:47,026 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/interpolation.c.v+nlh-reducer.c [2019-09-08 01:12:47,103 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcef63c33/73e357dcbe904a77bb3e45ac54f5ac7f/FLAGc7e24ed5d [2019-09-08 01:12:47,568 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:12:47,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/interpolation.c.v+nlh-reducer.c [2019-09-08 01:12:47,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcef63c33/73e357dcbe904a77bb3e45ac54f5ac7f/FLAGc7e24ed5d [2019-09-08 01:12:47,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcef63c33/73e357dcbe904a77bb3e45ac54f5ac7f [2019-09-08 01:12:47,935 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:12:47,937 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:12:47,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:12:47,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:12:47,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:12:47,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:12:47" (1/1) ... [2019-09-08 01:12:47,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@195aee61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:47, skipping insertion in model container [2019-09-08 01:12:47,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:12:47" (1/1) ... [2019-09-08 01:12:47,953 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:12:47,981 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:12:48,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:12:48,189 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:12:48,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:12:48,335 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:12:48,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:48 WrapperNode [2019-09-08 01:12:48,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:12:48,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:12:48,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:12:48,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:12:48,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:48" (1/1) ... [2019-09-08 01:12:48,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:48" (1/1) ... [2019-09-08 01:12:48,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:48" (1/1) ... [2019-09-08 01:12:48,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:48" (1/1) ... [2019-09-08 01:12:48,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:48" (1/1) ... [2019-09-08 01:12:48,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:48" (1/1) ... [2019-09-08 01:12:48,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:48" (1/1) ... [2019-09-08 01:12:48,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:12:48,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:12:48,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:12:48,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:12:48,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:48" (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 01:12:48,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:12:48,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:12:48,440 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:12:48,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:12:48,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-08 01:12:48,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 01:12:48,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-08 01:12:48,441 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:12:48,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:12:48,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-09-08 01:12:48,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:12:48,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:12:48,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:12:48,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:12:48,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:12:48,727 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:12:48,727 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 01:12:48,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:12:48 BoogieIcfgContainer [2019-09-08 01:12:48,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:12:48,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:12:48,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:12:48,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:12:48,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:12:47" (1/3) ... [2019-09-08 01:12:48,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf9384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:12:48, skipping insertion in model container [2019-09-08 01:12:48,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:48" (2/3) ... [2019-09-08 01:12:48,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf9384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:12:48, skipping insertion in model container [2019-09-08 01:12:48,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:12:48" (3/3) ... [2019-09-08 01:12:48,756 INFO L109 eAbstractionObserver]: Analyzing ICFG interpolation.c.v+nlh-reducer.c [2019-09-08 01:12:48,774 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:12:48,782 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:12:48,799 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:12:48,838 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:12:48,839 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:12:48,839 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:12:48,839 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:12:48,839 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:12:48,839 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:12:48,839 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:12:48,840 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:12:48,840 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:12:48,857 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-09-08 01:12:48,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-08 01:12:48,863 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:12:48,863 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:12:48,866 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:12:48,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:12:48,870 INFO L82 PathProgramCache]: Analyzing trace with hash -938213152, now seen corresponding path program 1 times [2019-09-08 01:12:48,872 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:12:48,872 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:12:48,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:12:48,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:12:48,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:12:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:12:49,080 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 01:12:49,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:12:49,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 01:12:49,092 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 01:12:49,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 01:12:49,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 01:12:49,109 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 5 states. [2019-09-08 01:12:49,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:12:49,222 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2019-09-08 01:12:49,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 01:12:49,223 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-09-08 01:12:49,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:12:49,234 INFO L225 Difference]: With dead ends: 44 [2019-09-08 01:12:49,234 INFO L226 Difference]: Without dead ends: 26 [2019-09-08 01:12:49,237 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-09-08 01:12:49,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-09-08 01:12:49,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-09-08 01:12:49,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-09-08 01:12:49,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2019-09-08 01:12:49,278 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 17 [2019-09-08 01:12:49,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:12:49,279 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2019-09-08 01:12:49,279 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 01:12:49,279 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2019-09-08 01:12:49,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-08 01:12:49,280 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:12:49,280 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:12:49,281 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:12:49,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:12:49,281 INFO L82 PathProgramCache]: Analyzing trace with hash -923109115, now seen corresponding path program 1 times [2019-09-08 01:12:49,282 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:12:49,282 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:12:49,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:12:49,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:12:49,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:12:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:12:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:12:49,364 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:12:49,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:12:49 BoogieIcfgContainer [2019-09-08 01:12:49,403 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:12:49,405 INFO L168 Benchmark]: Toolchain (without parser) took 1467.65 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 88.9 MB in the beginning and 122.4 MB in the end (delta: -33.5 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:12:49,406 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 132.6 MB. Free memory was 107.2 MB in the beginning and 106.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:12:49,407 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.12 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 88.4 MB in the beginning and 175.1 MB in the end (delta: -86.7 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:12:49,408 INFO L168 Benchmark]: Boogie Preprocessor took 39.34 ms. Allocated memory is still 199.8 MB. Free memory was 175.1 MB in the beginning and 173.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:12:49,409 INFO L168 Benchmark]: RCFGBuilder took 353.50 ms. Allocated memory is still 199.8 MB. Free memory was 173.2 MB in the beginning and 155.0 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:12:49,410 INFO L168 Benchmark]: TraceAbstraction took 664.99 ms. Allocated memory is still 199.8 MB. Free memory was 154.4 MB in the beginning and 122.4 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:12:49,414 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 132.6 MB. Free memory was 107.2 MB in the beginning and 106.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 399.12 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 88.4 MB in the beginning and 175.1 MB in the end (delta: -86.7 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.34 ms. Allocated memory is still 199.8 MB. Free memory was 175.1 MB in the beginning and 173.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 353.50 ms. Allocated memory is still 199.8 MB. Free memory was 173.2 MB in the beginning and 155.0 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 664.99 ms. Allocated memory is still 199.8 MB. Free memory was 154.4 MB in the beginning and 122.4 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 46]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 27, overapproximation of someBinaryDOUBLEComparisonOperation at line 33, overapproximation of to_real at line 13, overapproximation of someBinaryArithmeticFLOAToperation at line 31. Possible FailurePath: [L1] int __return_main; [L7] int __return_132; VAL [\old(__return_132)=22, \old(__return_main)=25, __return_132=0, __return_main=0] [L10] int main__i; [L11] float main__z; [L12] float main__t; [L13] float main__min[5] = { 5, 10, 12, 30, 150 }; [L14] float main__max[5] = { 10, 12, 30, 150, 300 }; [L15] main__t = __VERIFIER_nondet_float() [L16] int main____CPAchecker_TMP_0; [L17] EXPR main__min[0] VAL [\old(__return_132)=0, __return_132=0, __return_main=0, main__max={1:0}, main__min={-1:0}, main__min[0]=23, main__t=26] [L17] COND TRUE main__t >= (main__min[0]) [L19] EXPR main__max[4UL] VAL [\old(__return_132)=0, __return_132=0, __return_main=0, main__max={1:0}, main__max[4UL]=27, main__min={-1:0}, main__t=26] [L19] COND TRUE main__t <= (main__max[4UL]) [L21] main____CPAchecker_TMP_0 = 1 VAL [\old(__return_132)=0, __return_132=0, __return_main=0, main____CPAchecker_TMP_0=1, main__max={1:0}, main__min={-1:0}, main__t=26] [L22] COND TRUE main____CPAchecker_TMP_0 != 0 [L24] main__i = 0 VAL [\old(__return_132)=0, __return_132=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={1:0}, main__min={-1:0}, main__t=26] [L25] COND TRUE main__i < 5UL [L27] EXPR main__max[main__i] VAL [\old(__return_132)=0, __return_132=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={1:0}, main__max[main__i]=24, main__min={-1:0}, main__t=26] [L27] COND TRUE main__t <= (main__max[main__i]) [L31] EXPR main__min[main__i] [L31] EXPR main__max[main__i] [L31] EXPR main__min[main__i] [L31] main__z = (main__t - (main__min[main__i])) / ((main__max[main__i]) - (main__min[main__i])) [L32] int main____CPAchecker_TMP_1; VAL [\old(__return_132)=0, __return_132=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={1:0}, main__min={-1:0}, main__t=26] [L33] COND FALSE !(main__z >= 0.0) VAL [\old(__return_132)=0, __return_132=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={1:0}, main__min={-1:0}, main__t=26] [L59] main____CPAchecker_TMP_1 = 0 VAL [\old(__return_132)=0, __return_132=0, __return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={1:0}, main__min={-1:0}, main__t=26] [L40] int __tmp_1; [L41] __tmp_1 = main____CPAchecker_TMP_1 [L42] int __VERIFIER_assert__cond; [L43] __VERIFIER_assert__cond = __tmp_1 VAL [\old(__return_132)=0, __return_132=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={1:0}, main__min={-1:0}, main__t=26] [L44] COND TRUE __VERIFIER_assert__cond == 0 VAL [\old(__return_132)=0, __return_132=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={1:0}, main__min={-1:0}, main__t=26] [L46] __VERIFIER_error() VAL [\old(__return_132)=0, __return_132=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={1:0}, main__min={-1:0}, main__t=26] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 42 SDtfs, 37 SDslu, 93 SDs, 0 SdLazy, 11 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 384 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...