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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/array-examples/standard_minInArray_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-09 05:28:47,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-09 05:28:47,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-09 05:28:47,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-09 05:28:47,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-09 05:28:47,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-09 05:28:47,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-09 05:28:47,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-09 05:28:47,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-09 05:28:47,117 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-09 05:28:47,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-09 05:28:47,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-09 05:28:47,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-09 05:28:47,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-09 05:28:47,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-09 05:28:47,120 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-09 05:28:47,135 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-09 05:28:47,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-09 05:28:47,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-09 05:28:47,136 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-09 05:28:47,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-09 05:28:47,137 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-09 05:28:47,137 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-09 05:28:47,137 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-09 05:28:47,138 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-09 05:28:47,138 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-09 05:28:47,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-09 05:28:47,139 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-09 05:28:47,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-09 05:28:47,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-09 05:28:47,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-09 05:28:47,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-09 05:28:47,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-09 05:28:47,140 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-09 05:28:47,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-09 05:28:47,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-09 05:28:47,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-09 05:28:47,141 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-09 05:28:47,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-09 05:28:47,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 05:28:47,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-09 05:28:47,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-09 05:28:47,142 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-09 05:28:47,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-09 05:28:47,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-09 05:28:47,142 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-09 05:28:47,170 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-09 05:28:47,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-09 05:28:47,186 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-09 05:28:47,187 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-09 05:28:47,188 INFO L275 PluginConnector]: CDTParser initialized [2019-09-09 05:28:47,188 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_minInArray_ground-1.i [2019-09-09 05:28:47,248 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b7325670/881eb2b843e74074ae4bbf3f2ee02cae/FLAG0d41402a2 [2019-09-09 05:28:47,684 INFO L306 CDTParser]: Found 1 translation units. [2019-09-09 05:28:47,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_minInArray_ground-1.i [2019-09-09 05:28:47,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b7325670/881eb2b843e74074ae4bbf3f2ee02cae/FLAG0d41402a2 [2019-09-09 05:28:48,113 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b7325670/881eb2b843e74074ae4bbf3f2ee02cae [2019-09-09 05:28:48,121 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-09 05:28:48,123 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-09 05:28:48,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-09 05:28:48,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-09 05:28:48,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-09 05:28:48,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:28:48" (1/1) ... [2019-09-09 05:28:48,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62e9ecad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:48, skipping insertion in model container [2019-09-09 05:28:48,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:28:48" (1/1) ... [2019-09-09 05:28:48,141 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-09 05:28:48,164 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-09 05:28:48,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:28:48,398 INFO L188 MainTranslator]: Completed pre-run [2019-09-09 05:28:48,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:28:48,436 INFO L192 MainTranslator]: Completed translation [2019-09-09 05:28:48,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:48 WrapperNode [2019-09-09 05:28:48,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-09 05:28:48,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-09 05:28:48,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-09 05:28:48,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-09 05:28:48,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:48" (1/1) ... [2019-09-09 05:28:48,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:48" (1/1) ... [2019-09-09 05:28:48,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:48" (1/1) ... [2019-09-09 05:28:48,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:48" (1/1) ... [2019-09-09 05:28:48,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:48" (1/1) ... [2019-09-09 05:28:48,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:48" (1/1) ... [2019-09-09 05:28:48,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:48" (1/1) ... [2019-09-09 05:28:48,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-09 05:28:48,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-09 05:28:48,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-09 05:28:48,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-09 05:28:48,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:48" (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 [2019-09-09 05:28:48,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-09 05:28:48,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-09 05:28:48,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-09 05:28:48,608 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-09 05:28:48,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-09 05:28:48,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-09 05:28:48,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-09 05:28:48,609 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-09 05:28:48,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-09 05:28:48,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-09 05:28:48,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-09 05:28:48,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-09 05:28:48,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-09 05:28:48,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-09 05:28:48,878 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-09 05:28:48,879 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-09 05:28:48,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:28:48 BoogieIcfgContainer [2019-09-09 05:28:48,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-09 05:28:48,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-09 05:28:48,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-09 05:28:48,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-09 05:28:48,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 05:28:48" (1/3) ... [2019-09-09 05:28:48,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@777610b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:28:48, skipping insertion in model container [2019-09-09 05:28:48,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:48" (2/3) ... [2019-09-09 05:28:48,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@777610b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:28:48, skipping insertion in model container [2019-09-09 05:28:48,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:28:48" (3/3) ... [2019-09-09 05:28:48,891 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_minInArray_ground-1.i [2019-09-09 05:28:48,900 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-09 05:28:48,907 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-09 05:28:48,923 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-09 05:28:48,950 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-09 05:28:48,950 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-09 05:28:48,950 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-09 05:28:48,950 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-09 05:28:48,950 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-09 05:28:48,951 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-09 05:28:48,951 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-09 05:28:48,951 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-09 05:28:48,966 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-09-09 05:28:48,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-09 05:28:48,975 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:28:48,976 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:28:48,978 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:28:48,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:28:48,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1241254978, now seen corresponding path program 1 times [2019-09-09 05:28:48,985 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:28:49,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:28:49,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:28:49,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:28:49,025 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:28:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:28:49,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:28:49,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:28:49,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-09 05:28:49,105 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:28:49,109 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-09 05:28:49,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-09 05:28:49,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:28:49,122 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-09-09 05:28:49,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:28:49,136 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-09-09 05:28:49,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-09 05:28:49,138 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-09-09 05:28:49,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:28:49,152 INFO L225 Difference]: With dead ends: 28 [2019-09-09 05:28:49,152 INFO L226 Difference]: Without dead ends: 23 [2019-09-09 05:28:49,154 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:28:49,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-09-09 05:28:49,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-09-09 05:28:49,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-09-09 05:28:49,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-09-09 05:28:49,189 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 15 [2019-09-09 05:28:49,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:28:49,190 INFO L475 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-09-09 05:28:49,190 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-09 05:28:49,190 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-09-09 05:28:49,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-09 05:28:49,191 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:28:49,191 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:28:49,192 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:28:49,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:28:49,192 INFO L82 PathProgramCache]: Analyzing trace with hash -159068691, now seen corresponding path program 1 times [2019-09-09 05:28:49,192 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:28:49,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:28:49,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:28:49,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:28:49,194 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:28:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:28:49,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:28:49,242 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:28:49,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-09 05:28:49,242 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:28:49,244 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 05:28:49,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 05:28:49,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 05:28:49,245 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 3 states. [2019-09-09 05:28:49,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:28:49,285 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2019-09-09 05:28:49,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 05:28:49,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-09-09 05:28:49,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:28:49,287 INFO L225 Difference]: With dead ends: 25 [2019-09-09 05:28:49,287 INFO L226 Difference]: Without dead ends: 25 [2019-09-09 05:28:49,288 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 05:28:49,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-09-09 05:28:49,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2019-09-09 05:28:49,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-09-09 05:28:49,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2019-09-09 05:28:49,297 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 15 [2019-09-09 05:28:49,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:28:49,297 INFO L475 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2019-09-09 05:28:49,300 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 05:28:49,300 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2019-09-09 05:28:49,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-09 05:28:49,301 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:28:49,301 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:28:49,301 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:28:49,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:28:49,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1675123339, now seen corresponding path program 1 times [2019-09-09 05:28:49,302 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:28:49,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:28:49,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:28:49,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:28:49,304 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:28:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:28:49,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-09 05:28:49,364 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:28:49,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-09 05:28:49,364 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:28:49,365 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 05:28:49,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 05:28:49,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 05:28:49,365 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 3 states. [2019-09-09 05:28:49,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:28:49,412 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2019-09-09 05:28:49,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 05:28:49,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-09-09 05:28:49,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:28:49,414 INFO L225 Difference]: With dead ends: 27 [2019-09-09 05:28:49,414 INFO L226 Difference]: Without dead ends: 27 [2019-09-09 05:28:49,415 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 05:28:49,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-09-09 05:28:49,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2019-09-09 05:28:49,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-09-09 05:28:49,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-09-09 05:28:49,420 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 17 [2019-09-09 05:28:49,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:28:49,421 INFO L475 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-09-09 05:28:49,421 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 05:28:49,421 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-09-09 05:28:49,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-09 05:28:49,422 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:28:49,422 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] [2019-09-09 05:28:49,423 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:28:49,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:28:49,423 INFO L82 PathProgramCache]: Analyzing trace with hash 99818017, now seen corresponding path program 1 times [2019-09-09 05:28:49,423 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:28:49,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:28:49,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:28:49,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:28:49,424 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:28:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:28:49,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-09 05:28:49,479 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-09 05:28:49,479 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-09 05:28:49,480 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2019-09-09 05:28:49,482 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [11], [13], [15], [19], [26], [28], [33], [35], [39], [47], [57], [60], [62], [68], [69], [70], [72] [2019-09-09 05:28:49,510 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-09 05:28:49,511 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-09 05:28:49,567 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-09 05:28:49,569 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 22 variables. [2019-09-09 05:28:49,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:28:49,573 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-09 05:28:49,607 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-09 05:28:49,607 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-09 05:28:49,609 INFO L420 sIntCurrentIteration]: We unified 19 AI predicates to 19 [2019-09-09 05:28:49,609 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-09 05:28:49,610 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-09 05:28:49,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2019-09-09 05:28:49,610 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:28:49,610 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-09 05:28:49,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-09 05:28:49,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:28:49,611 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 2 states. [2019-09-09 05:28:49,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:28:49,612 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-09 05:28:49,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-09 05:28:49,612 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2019-09-09 05:28:49,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:28:49,613 INFO L225 Difference]: With dead ends: 6 [2019-09-09 05:28:49,613 INFO L226 Difference]: Without dead ends: 0 [2019-09-09 05:28:49,613 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:28:49,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-09 05:28:49,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-09 05:28:49,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-09 05:28:49,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-09 05:28:49,614 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-09-09 05:28:49,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:28:49,615 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-09 05:28:49,615 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-09 05:28:49,615 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-09 05:28:49,615 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-09 05:28:49,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.09 05:28:49 BoogieIcfgContainer [2019-09-09 05:28:49,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-09 05:28:49,622 INFO L168 Benchmark]: Toolchain (without parser) took 1498.34 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 87.6 MB in the beginning and 117.1 MB in the end (delta: -29.5 MB). Peak memory consumption was 37.1 MB. Max. memory is 7.1 GB. [2019-09-09 05:28:49,623 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 132.6 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-09 05:28:49,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.97 ms. Allocated memory is still 132.6 MB. Free memory was 87.4 MB in the beginning and 77.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-09 05:28:49,625 INFO L168 Benchmark]: Boogie Preprocessor took 118.55 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 77.5 MB in the beginning and 175.1 MB in the end (delta: -97.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-09-09 05:28:49,626 INFO L168 Benchmark]: RCFGBuilder took 324.86 ms. Allocated memory is still 199.2 MB. Free memory was 175.1 MB in the beginning and 161.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-09-09 05:28:49,627 INFO L168 Benchmark]: TraceAbstraction took 737.22 ms. Allocated memory is still 199.2 MB. Free memory was 160.5 MB in the beginning and 117.1 MB in the end (delta: 43.4 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. [2019-09-09 05:28:49,632 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 132.6 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 313.97 ms. Allocated memory is still 132.6 MB. Free memory was 87.4 MB in the beginning and 77.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.55 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 77.5 MB in the beginning and 175.1 MB in the end (delta: -97.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 324.86 ms. Allocated memory is still 199.2 MB. Free memory was 175.1 MB in the beginning and 161.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 737.22 ms. Allocated memory is still 199.2 MB. Free memory was 160.5 MB in the beginning and 117.1 MB in the end (delta: 43.4 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 83 SDtfs, 4 SDslu, 43 SDs, 0 SdLazy, 12 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 1 AbstIntIterations, 1 AbstIntStrong, 0.9473684210526315 AbsIntWeakeningRatio, 0.6842105263157895 AbsIntAvgWeakeningVarsNumRemoved, 0.3157894736842105 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 1183 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...