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/recursive-simple/id_o3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 06:28:05,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 06:28:05,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 06:28:05,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 06:28:05,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 06:28:05,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 06:28:05,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 06:28:05,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 06:28:05,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 06:28:05,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 06:28:05,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 06:28:05,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 06:28:05,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 06:28:05,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 06:28:05,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 06:28:05,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 06:28:05,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 06:28:05,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 06:28:05,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 06:28:05,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 06:28:05,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 06:28:05,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 06:28:05,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 06:28:05,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 06:28:05,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 06:28:05,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 06:28:05,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 06:28:05,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 06:28:05,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 06:28:05,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 06:28:05,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 06:28:05,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 06:28:05,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 06:28:05,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 06:28:05,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 06:28:05,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 06:28:05,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 06:28:05,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 06:28:05,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 06:28:05,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 06:28:05,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 06:28:05,674 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 06:28:05,689 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 06:28:05,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 06:28:05,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 06:28:05,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 06:28:05,691 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 06:28:05,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 06:28:05,691 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 06:28:05,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 06:28:05,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 06:28:05,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 06:28:05,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 06:28:05,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 06:28:05,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 06:28:05,692 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 06:28:05,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 06:28:05,693 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 06:28:05,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 06:28:05,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 06:28:05,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 06:28:05,693 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 06:28:05,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 06:28:05,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 06:28:05,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 06:28:05,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 06:28:05,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 06:28:05,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 06:28:05,695 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 06:28:05,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 06:28:05,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 06:28:05,724 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 06:28:05,737 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 06:28:05,740 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 06:28:05,742 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 06:28:05,742 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 06:28:05,743 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o3.c [2019-09-08 06:28:05,803 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f44081560/a943a5fc0b4a48cfa043213de1d92665/FLAGa4e667887 [2019-09-08 06:28:06,235 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 06:28:06,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id_o3.c [2019-09-08 06:28:06,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f44081560/a943a5fc0b4a48cfa043213de1d92665/FLAGa4e667887 [2019-09-08 06:28:06,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f44081560/a943a5fc0b4a48cfa043213de1d92665 [2019-09-08 06:28:06,651 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 06:28:06,653 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 06:28:06,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 06:28:06,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 06:28:06,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 06:28:06,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:28:06" (1/1) ... [2019-09-08 06:28:06,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea623e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:28:06, skipping insertion in model container [2019-09-08 06:28:06,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:28:06" (1/1) ... [2019-09-08 06:28:06,672 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 06:28:06,688 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 06:28:06,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 06:28:06,863 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 06:28:06,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 06:28:06,891 INFO L192 MainTranslator]: Completed translation [2019-09-08 06:28:06,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:28:06 WrapperNode [2019-09-08 06:28:06,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 06:28:06,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 06:28:06,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 06:28:06,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 06:28:06,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:28:06" (1/1) ... [2019-09-08 06:28:06,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:28:06" (1/1) ... [2019-09-08 06:28:07,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:28:06" (1/1) ... [2019-09-08 06:28:07,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:28:06" (1/1) ... [2019-09-08 06:28:07,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:28:06" (1/1) ... [2019-09-08 06:28:07,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:28:06" (1/1) ... [2019-09-08 06:28:07,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:28:06" (1/1) ... [2019-09-08 06:28:07,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 06:28:07,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 06:28:07,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 06:28:07,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 06:28:07,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:28:06" (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 06:28:07,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 06:28:07,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 06:28:07,072 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-09-08 06:28:07,072 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 06:28:07,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-08 06:28:07,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 06:28:07,072 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-09-08 06:28:07,072 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 06:28:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 06:28:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 06:28:07,210 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 06:28:07,210 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 06:28:07,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:28:07 BoogieIcfgContainer [2019-09-08 06:28:07,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 06:28:07,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 06:28:07,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 06:28:07,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 06:28:07,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 06:28:06" (1/3) ... [2019-09-08 06:28:07,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9c5d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:28:07, skipping insertion in model container [2019-09-08 06:28:07,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:28:06" (2/3) ... [2019-09-08 06:28:07,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9c5d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:28:07, skipping insertion in model container [2019-09-08 06:28:07,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:28:07" (3/3) ... [2019-09-08 06:28:07,220 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o3.c [2019-09-08 06:28:07,229 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 06:28:07,235 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 06:28:07,247 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 06:28:07,276 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 06:28:07,277 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 06:28:07,277 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 06:28:07,277 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 06:28:07,277 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 06:28:07,277 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 06:28:07,277 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 06:28:07,278 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 06:28:07,278 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 06:28:07,293 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-09-08 06:28:07,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-08 06:28:07,298 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:28:07,299 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:28:07,300 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:28:07,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:28:07,306 INFO L82 PathProgramCache]: Analyzing trace with hash -872342019, now seen corresponding path program 1 times [2019-09-08 06:28:07,308 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:28:07,308 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:28:07,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:28:07,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:28:07,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:28:07,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:28:07,575 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 06:28:07,578 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:28:07,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 06:28:07,583 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 06:28:07,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 06:28:07,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 06:28:07,603 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2019-09-08 06:28:07,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:28:07,658 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2019-09-08 06:28:07,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 06:28:07,660 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-09-08 06:28:07,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:28:07,671 INFO L225 Difference]: With dead ends: 32 [2019-09-08 06:28:07,671 INFO L226 Difference]: Without dead ends: 18 [2019-09-08 06:28:07,674 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 06:28:07,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-09-08 06:28:07,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-09-08 06:28:07,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-08 06:28:07,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-09-08 06:28:07,721 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2019-09-08 06:28:07,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:28:07,722 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-09-08 06:28:07,722 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 06:28:07,722 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-09-08 06:28:07,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-08 06:28:07,726 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:28:07,727 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:28:07,728 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:28:07,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:28:07,729 INFO L82 PathProgramCache]: Analyzing trace with hash -953570577, now seen corresponding path program 1 times [2019-09-08 06:28:07,729 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:28:07,729 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:28:07,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:28:07,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:28:07,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:28:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:28:07,913 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 06:28:07,913 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:28:07,913 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:28:07,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:28:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:28:07,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-08 06:28:07,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:28:08,037 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 06:28:08,044 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 06:28:08,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-09-08 06:28:08,046 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 06:28:08,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 06:28:08,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-09-08 06:28:08,049 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 8 states. [2019-09-08 06:28:08,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:28:08,102 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2019-09-08 06:28:08,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 06:28:08,103 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-09-08 06:28:08,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:28:08,104 INFO L225 Difference]: With dead ends: 25 [2019-09-08 06:28:08,105 INFO L226 Difference]: Without dead ends: 21 [2019-09-08 06:28:08,106 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-09-08 06:28:08,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-09-08 06:28:08,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-09-08 06:28:08,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-09-08 06:28:08,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-09-08 06:28:08,113 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2019-09-08 06:28:08,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:28:08,113 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-09-08 06:28:08,113 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 06:28:08,114 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-09-08 06:28:08,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-09-08 06:28:08,116 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:28:08,117 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:28:08,117 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:28:08,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:28:08,118 INFO L82 PathProgramCache]: Analyzing trace with hash 397359997, now seen corresponding path program 2 times [2019-09-08 06:28:08,118 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:28:08,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:28:08,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:28:08,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:28:08,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:28:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:28:08,316 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 06:28:08,317 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:28:08,317 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 06:28:08,332 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:28:08,350 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 06:28:08,351 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 06:28:08,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-08 06:28:08,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:28:08,392 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 06:28:08,396 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 06:28:08,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2019-09-08 06:28:08,397 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 06:28:08,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 06:28:08,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-08 06:28:08,398 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 10 states. [2019-09-08 06:28:08,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:28:08,449 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2019-09-08 06:28:08,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 06:28:08,449 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2019-09-08 06:28:08,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:28:08,451 INFO L225 Difference]: With dead ends: 28 [2019-09-08 06:28:08,451 INFO L226 Difference]: Without dead ends: 24 [2019-09-08 06:28:08,452 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-08 06:28:08,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-09-08 06:28:08,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-09-08 06:28:08,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-09-08 06:28:08,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2019-09-08 06:28:08,459 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 25 [2019-09-08 06:28:08,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:28:08,459 INFO L475 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2019-09-08 06:28:08,459 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 06:28:08,460 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2019-09-08 06:28:08,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-09-08 06:28:08,461 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:28:08,461 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:28:08,461 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:28:08,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:28:08,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1198310127, now seen corresponding path program 3 times [2019-09-08 06:28:08,462 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:28:08,462 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:28:08,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:28:08,464 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 06:28:08,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:28:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 06:28:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 06:28:08,514 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 06:28:08,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 06:28:08 BoogieIcfgContainer [2019-09-08 06:28:08,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 06:28:08,557 INFO L168 Benchmark]: Toolchain (without parser) took 1900.86 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 87.5 MB in the beginning and 84.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. [2019-09-08 06:28:08,560 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 106.2 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 06:28:08,561 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.77 ms. Allocated memory is still 140.0 MB. Free memory was 87.3 MB in the beginning and 78.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-09-08 06:28:08,563 INFO L168 Benchmark]: Boogie Preprocessor took 120.27 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 78.3 MB in the beginning and 178.8 MB in the end (delta: -100.5 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2019-09-08 06:28:08,564 INFO L168 Benchmark]: RCFGBuilder took 198.05 ms. Allocated memory is still 200.3 MB. Free memory was 178.8 MB in the beginning and 168.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-09-08 06:28:08,566 INFO L168 Benchmark]: TraceAbstraction took 1339.25 ms. Allocated memory is still 200.3 MB. Free memory was 167.6 MB in the beginning and 84.6 MB in the end (delta: 83.0 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2019-09-08 06:28:08,576 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 106.2 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 238.77 ms. Allocated memory is still 140.0 MB. Free memory was 87.3 MB in the beginning and 78.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.27 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 78.3 MB in the beginning and 178.8 MB in the end (delta: -100.5 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 198.05 ms. Allocated memory is still 200.3 MB. Free memory was 178.8 MB in the beginning and 168.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1339.25 ms. Allocated memory is still 200.3 MB. Free memory was 167.6 MB in the beginning and 84.6 MB in the end (delta: 83.0 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] unsigned int input = __VERIFIER_nondet_uint(); [L11] CALL, EXPR id(input) VAL [\old(x)=3] [L5] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L6] CALL, EXPR id(x-1) VAL [\old(x)=2] [L5] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L6] CALL, EXPR id(x-1) VAL [\old(x)=1] [L5] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L6] CALL, EXPR id(x-1) VAL [\old(x)=0] [L5] COND TRUE x==0 [L5] return 0; VAL [\old(x)=0, \result=0, x=0] [L6] RET, EXPR id(x-1) VAL [\old(x)=1, id(x-1)=0, x=1] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=2, id(x-1)=1, x=2] [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) VAL [\old(x)=3, id(x-1)=2, x=3] [L6] return id(x-1) + 1; [L11] RET, EXPR id(input) VAL [id(input)=3, input=3] [L11] unsigned int result = id(input); [L12] COND TRUE result == 3 VAL [input=3, result=3] [L13] __VERIFIER_error() VAL [input=3, result=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. UNSAFE Result, 1.2s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 SDtfs, 2 SDslu, 270 SDs, 0 SdLazy, 58 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=3, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 6840 SizeOfPredicates, 2 NumberOfNonLiveVariables, 96 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 18/36 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...