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/zonotope_loose.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:17:40,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:17:40,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:17:40,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:17:40,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:17:40,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:17:40,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:17:40,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:17:40,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:17:40,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:17:40,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:17:40,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:17:40,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:17:40,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:17:40,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:17:40,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:17:40,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:17:40,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:17:40,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:17:40,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:17:40,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:17:40,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:17:40,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:17:40,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:17:40,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:17:40,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:17:40,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:17:40,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:17:40,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:17:40,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:17:40,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:17:40,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:17:40,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:17:40,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:17:40,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:17:40,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:17:40,325 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 01:17:40,364 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:17:40,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:17:40,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:17:40,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:17:40,372 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:17:40,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:17:40,372 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:17:40,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:17:40,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:17:40,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:17:40,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:17:40,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:17:40,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:17:40,376 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:17:40,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:17:40,376 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:17:40,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:17:40,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:17:40,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:17:40,377 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:17:40,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:17:40,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:17:40,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:17:40,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:17:40,378 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:17:40,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:17:40,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:17:40,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:17:40,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:17:40,433 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:17:40,445 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:17:40,449 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:17:40,451 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:17:40,451 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:17:40,452 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2019-09-08 01:17:40,523 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38e3848e8/65b2a49f82dd4f8abcc7867ef60853e6/FLAG66c13652f [2019-09-08 01:17:40,975 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:17:40,976 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2019-09-08 01:17:40,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38e3848e8/65b2a49f82dd4f8abcc7867ef60853e6/FLAG66c13652f [2019-09-08 01:17:41,340 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38e3848e8/65b2a49f82dd4f8abcc7867ef60853e6 [2019-09-08 01:17:41,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:17:41,352 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:17:41,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:17:41,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:17:41,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:17:41,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:17:41" (1/1) ... [2019-09-08 01:17:41,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@717d0fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:17:41, skipping insertion in model container [2019-09-08 01:17:41,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:17:41" (1/1) ... [2019-09-08 01:17:41,370 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:17:41,391 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:17:41,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:17:41,567 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:17:41,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:17:41,600 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:17:41,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:17:41 WrapperNode [2019-09-08 01:17:41,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:17:41,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:17:41,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:17:41,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:17:41,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:17:41" (1/1) ... [2019-09-08 01:17:41,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:17:41" (1/1) ... [2019-09-08 01:17:41,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:17:41" (1/1) ... [2019-09-08 01:17:41,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:17:41" (1/1) ... [2019-09-08 01:17:41,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:17:41" (1/1) ... [2019-09-08 01:17:41,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:17:41" (1/1) ... [2019-09-08 01:17:41,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:17:41" (1/1) ... [2019-09-08 01:17:41,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:17:41,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:17:41,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:17:41,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:17:41,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:17:41" (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 01:17:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:17:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:17:41,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:17:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:17:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-08 01:17:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 01:17:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-08 01:17:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:17:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:17:41,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:17:41,948 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:17:41,948 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 01:17:41,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:17:41 BoogieIcfgContainer [2019-09-08 01:17:41,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:17:41,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:17:41,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:17:41,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:17:41,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:17:41" (1/3) ... [2019-09-08 01:17:41,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2254cdd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:17:41, skipping insertion in model container [2019-09-08 01:17:41,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:17:41" (2/3) ... [2019-09-08 01:17:41,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2254cdd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:17:41, skipping insertion in model container [2019-09-08 01:17:41,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:17:41" (3/3) ... [2019-09-08 01:17:41,970 INFO L109 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c.v+cfa-reducer.c [2019-09-08 01:17:41,985 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:17:42,017 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:17:42,054 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:17:42,091 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:17:42,092 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:17:42,092 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:17:42,092 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:17:42,092 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:17:42,092 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:17:42,092 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:17:42,093 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:17:42,093 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:17:42,109 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-09-08 01:17:42,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-08 01:17:42,115 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:17:42,116 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:17:42,118 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:17:42,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:17:42,123 INFO L82 PathProgramCache]: Analyzing trace with hash 857130946, now seen corresponding path program 1 times [2019-09-08 01:17:42,124 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:17:42,124 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:17:42,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:17:42,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:17:42,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:17:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:17:42,297 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 01:17:42,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:17:42,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 01:17:42,303 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 01:17:42,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 01:17:42,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:17:42,318 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 4 states. [2019-09-08 01:17:42,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:17:42,424 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2019-09-08 01:17:42,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 01:17:42,430 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-09-08 01:17:42,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:17:42,444 INFO L225 Difference]: With dead ends: 32 [2019-09-08 01:17:42,444 INFO L226 Difference]: Without dead ends: 18 [2019-09-08 01:17:42,452 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 01:17:42,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-09-08 01:17:42,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-09-08 01:17:42,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-08 01:17:42,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-09-08 01:17:42,501 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 16 [2019-09-08 01:17:42,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:17:42,502 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-09-08 01:17:42,502 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 01:17:42,502 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-09-08 01:17:42,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-08 01:17:42,503 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:17:42,504 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:17:42,505 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:17:42,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:17:42,506 INFO L82 PathProgramCache]: Analyzing trace with hash 872234983, now seen corresponding path program 1 times [2019-09-08 01:17:42,507 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:17:42,508 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:17:42,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:17:42,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:17:42,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:17:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:17:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:17:42,604 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:17:42,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:17:42 BoogieIcfgContainer [2019-09-08 01:17:42,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:17:42,651 INFO L168 Benchmark]: Toolchain (without parser) took 1297.78 ms. Allocated memory was 140.0 MB in the beginning and 199.8 MB in the end (delta: 59.8 MB). Free memory was 87.4 MB in the beginning and 138.9 MB in the end (delta: -51.5 MB). Peak memory consumption was 8.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:17:42,652 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 106.2 MB in the beginning and 106.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:17:42,653 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.26 ms. Allocated memory is still 140.0 MB. Free memory was 87.2 MB in the beginning and 77.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:17:42,654 INFO L168 Benchmark]: Boogie Preprocessor took 119.10 ms. Allocated memory was 140.0 MB in the beginning and 199.8 MB in the end (delta: 59.8 MB). Free memory was 77.6 MB in the beginning and 176.8 MB in the end (delta: -99.2 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:17:42,655 INFO L168 Benchmark]: RCFGBuilder took 228.94 ms. Allocated memory is still 199.8 MB. Free memory was 176.8 MB in the beginning and 164.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:17:42,656 INFO L168 Benchmark]: TraceAbstraction took 690.02 ms. Allocated memory is still 199.8 MB. Free memory was 164.6 MB in the beginning and 138.9 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:17:42,660 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 140.0 MB. Free memory was 106.2 MB in the beginning and 106.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 248.26 ms. Allocated memory is still 140.0 MB. Free memory was 87.2 MB in the beginning and 77.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.10 ms. Allocated memory was 140.0 MB in the beginning and 199.8 MB in the end (delta: 59.8 MB). Free memory was 77.6 MB in the beginning and 176.8 MB in the end (delta: -99.2 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 228.94 ms. Allocated memory is still 199.8 MB. Free memory was 176.8 MB in the beginning and 164.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 690.02 ms. Allocated memory is still 199.8 MB. Free memory was 164.6 MB in the beginning and 138.9 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 40]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 24. Possible FailurePath: [L1] int __return_main; [L7] int __return_76; VAL [\old(__return_76)=3, \old(__return_main)=2, __return_76=0, __return_main=0] [L10] double main__x; [L11] double main__y; [L12] main__x = __VERIFIER_nondet_double() [L13] int main____CPAchecker_TMP_0; VAL [\old(__return_76)=0, __return_76=0, __return_main=0, main__x=1] [L14] COND TRUE main__x >= 0.0 VAL [\old(__return_76)=0, __return_76=0, __return_main=0, main__x=1] [L16] COND TRUE main__x <= 10.0 [L18] main____CPAchecker_TMP_0 = 1 VAL [\old(__return_76)=0, __return_76=0, __return_main=0, main____CPAchecker_TMP_0=1, main__x=1] [L19] COND TRUE main____CPAchecker_TMP_0 != 0 [L21] main__y = (main__x * main__x) - main__x VAL [\old(__return_76)=0, __return_76=0, __return_main=0, main____CPAchecker_TMP_0=1, main__x=1] [L22] COND TRUE main__y >= 0 [L24] main__y = main__x / 10.0 VAL [\old(__return_76)=0, __return_76=0, __return_main=0, main____CPAchecker_TMP_0=1, main__x=1] [L26] int main____CPAchecker_TMP_1; VAL [\old(__return_76)=0, __return_76=0, __return_main=0, main____CPAchecker_TMP_0=1, main__x=1] [L27] COND FALSE !(main__y >= 0.0) VAL [\old(__return_76)=0, __return_76=0, __return_main=0, main____CPAchecker_TMP_0=1, main__x=1] [L53] main____CPAchecker_TMP_1 = 0 VAL [\old(__return_76)=0, __return_76=0, __return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__x=1] [L34] int __tmp_1; [L35] __tmp_1 = main____CPAchecker_TMP_1 [L36] int __VERIFIER_assert__cond; [L37] __VERIFIER_assert__cond = __tmp_1 VAL [\old(__return_76)=0, __return_76=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__x=1] [L38] COND TRUE __VERIFIER_assert__cond == 0 VAL [\old(__return_76)=0, __return_76=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__x=1] [L40] __VERIFIER_error() VAL [\old(__return_76)=0, __return_76=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 27 SDtfs, 5 SDslu, 49 SDs, 0 SdLazy, 8 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=22occurred 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, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 285 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...