/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/recursive/Addition02.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:33:50,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:33:50,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:33:50,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-02 04:33:50,669 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 [2023-04-02 04:33:50,696 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:33:50,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:33:50,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:33:50,696 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:33:50,698 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:33:50,698 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:33:50,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:33:50,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:33:50,698 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:33:50,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:33:50,699 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:33:50,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:33:50,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:33:50,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:33:50,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:33:50,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:33:50,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:33:50,700 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:33:50,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:33:50,700 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:33:50,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:33:50,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:33:50,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:33:50,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:33:50,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:33:50,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:33:50,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:33:50,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:33:50,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:33:50,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:33:50,702 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:33:50,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:33:50,702 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:33:50,702 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:33:50,702 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:33:50,703 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:33:50,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:33:50,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:33:50,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:33:50,936 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:33:50,937 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:33:50,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition02.c [2023-04-02 04:33:52,140 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:33:52,296 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:33:52,296 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02.c [2023-04-02 04:33:52,300 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a991638b/53acca758eb9442c80fcd94f0a5a61a5/FLAG61009ef85 [2023-04-02 04:33:52,312 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a991638b/53acca758eb9442c80fcd94f0a5a61a5 [2023-04-02 04:33:52,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:33:52,316 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:33:52,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:33:52,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:33:52,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:33:52,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:33:52" (1/1) ... [2023-04-02 04:33:52,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486206bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:33:52, skipping insertion in model container [2023-04-02 04:33:52,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:33:52" (1/1) ... [2023-04-02 04:33:52,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:33:52,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:33:52,472 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2023-04-02 04:33:52,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:33:52,489 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:33:52,507 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2023-04-02 04:33:52,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:33:52,519 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:33:52,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:33:52 WrapperNode [2023-04-02 04:33:52,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:33:52,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:33:52,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:33:52,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:33:52,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:33:52" (1/1) ... [2023-04-02 04:33:52,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:33:52" (1/1) ... [2023-04-02 04:33:52,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:33:52" (1/1) ... [2023-04-02 04:33:52,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:33:52" (1/1) ... [2023-04-02 04:33:52,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:33:52" (1/1) ... [2023-04-02 04:33:52,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:33:52" (1/1) ... [2023-04-02 04:33:52,543 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:33:52" (1/1) ... [2023-04-02 04:33:52,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:33:52" (1/1) ... [2023-04-02 04:33:52,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:33:52,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:33:52,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:33:52,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:33:52,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:33:52" (1/1) ... [2023-04-02 04:33:52,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:33:52,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:33:52,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 04:33:52,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 04:33:52,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:33:52,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:33:52,624 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:33:52,624 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2023-04-02 04:33:52,624 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:33:52,625 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:33:52,625 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:33:52,625 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:33:52,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:33:52,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:33:52,625 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2023-04-02 04:33:52,625 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:33:52,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:33:52,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:33:52,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:33:52,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:33:52,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:33:52,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:33:52,692 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:33:52,694 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:33:52,823 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:33:52,828 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:33:52,828 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 04:33:52,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:33:52 BoogieIcfgContainer [2023-04-02 04:33:52,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:33:52,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:33:52,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:33:52,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:33:52,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:33:52" (1/3) ... [2023-04-02 04:33:52,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bb08df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:33:52, skipping insertion in model container [2023-04-02 04:33:52,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:33:52" (2/3) ... [2023-04-02 04:33:52,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bb08df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:33:52, skipping insertion in model container [2023-04-02 04:33:52,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:33:52" (3/3) ... [2023-04-02 04:33:52,839 INFO L112 eAbstractionObserver]: Analyzing ICFG Addition02.c [2023-04-02 04:33:52,855 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:33:52,855 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:33:52,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:33:52,923 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5217d9b3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:33:52,924 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:33:52,927 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-04-02 04:33:52,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-04-02 04:33:52,935 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:33:52,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:33:52,936 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:33:52,944 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:33:52,944 INFO L85 PathProgramCache]: Analyzing trace with hash -125880268, now seen corresponding path program 1 times [2023-04-02 04:33:52,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:33:52,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578893994] [2023-04-02 04:33:52,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:33:52,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:33:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:33:53,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:33:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:33:53,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:33:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:33:53,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:33:53,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:33:53,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578893994] [2023-04-02 04:33:53,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578893994] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:33:53,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:33:53,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:33:53,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756667648] [2023-04-02 04:33:53,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:33:53,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:33:53,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:33:53,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:33:53,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:33:53,483 INFO L87 Difference]: Start difference. First operand has 27 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-02 04:33:53,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:33:53,760 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2023-04-02 04:33:53,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 04:33:53,762 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2023-04-02 04:33:53,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:33:53,769 INFO L225 Difference]: With dead ends: 39 [2023-04-02 04:33:53,769 INFO L226 Difference]: Without dead ends: 25 [2023-04-02 04:33:53,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:33:53,775 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 42 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:33:53,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 41 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 04:33:53,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-04-02 04:33:53,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-04-02 04:33:53,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-04-02 04:33:53,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2023-04-02 04:33:53,821 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 16 [2023-04-02 04:33:53,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:33:53,821 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2023-04-02 04:33:53,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-02 04:33:53,821 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2023-04-02 04:33:53,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-04-02 04:33:53,823 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:33:53,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:33:53,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:33:53,823 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:33:53,824 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:33:53,824 INFO L85 PathProgramCache]: Analyzing trace with hash -943001011, now seen corresponding path program 1 times [2023-04-02 04:33:53,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:33:53,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812223531] [2023-04-02 04:33:53,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:33:53,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:33:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:33:53,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:33:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:33:53,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 04:33:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:33:53,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:33:53,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:33:53,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812223531] [2023-04-02 04:33:53,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812223531] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:33:53,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:33:53,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 04:33:53,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256137871] [2023-04-02 04:33:53,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:33:53,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 04:33:53,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:33:53,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 04:33:53,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:33:53,940 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-02 04:33:54,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:33:54,047 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2023-04-02 04:33:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:33:54,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-04-02 04:33:54,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:33:54,049 INFO L225 Difference]: With dead ends: 35 [2023-04-02 04:33:54,049 INFO L226 Difference]: Without dead ends: 27 [2023-04-02 04:33:54,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-04-02 04:33:54,051 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 25 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 04:33:54,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 12 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 04:33:54,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-04-02 04:33:54,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2023-04-02 04:33:54,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-04-02 04:33:54,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2023-04-02 04:33:54,063 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 18 [2023-04-02 04:33:54,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:33:54,064 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2023-04-02 04:33:54,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-02 04:33:54,064 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2023-04-02 04:33:54,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-04-02 04:33:54,065 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:33:54,065 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:33:54,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:33:54,066 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:33:54,066 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:33:54,066 INFO L85 PathProgramCache]: Analyzing trace with hash 12462718, now seen corresponding path program 1 times [2023-04-02 04:33:54,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:33:54,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096713095] [2023-04-02 04:33:54,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:33:54,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:33:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:33:54,091 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 04:33:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:33:54,140 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 04:33:54,141 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 04:33:54,142 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:33:54,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:33:54,147 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-04-02 04:33:54,151 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 04:33:54,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 04:33:54 BoogieIcfgContainer [2023-04-02 04:33:54,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 04:33:54,182 INFO L158 Benchmark]: Toolchain (without parser) took 1866.04ms. Allocated memory is still 281.0MB. Free memory was 233.6MB in the beginning and 242.5MB in the end (delta: -8.9MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:33:54,182 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 189.8MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:33:54,183 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.21ms. Allocated memory is still 281.0MB. Free memory was 233.1MB in the beginning and 223.1MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-04-02 04:33:54,186 INFO L158 Benchmark]: Boogie Preprocessor took 25.14ms. Allocated memory is still 281.0MB. Free memory was 223.1MB in the beginning and 222.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-04-02 04:33:54,191 INFO L158 Benchmark]: RCFGBuilder took 283.68ms. Allocated memory is still 281.0MB. Free memory was 222.0MB in the beginning and 210.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-04-02 04:33:54,191 INFO L158 Benchmark]: TraceAbstraction took 1349.22ms. Allocated memory is still 281.0MB. Free memory was 210.0MB in the beginning and 242.5MB in the end (delta: -32.5MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:33:54,192 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 189.8MB. Free memory is still 141.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 203.21ms. Allocated memory is still 281.0MB. Free memory was 233.1MB in the beginning and 223.1MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.14ms. Allocated memory is still 281.0MB. Free memory was 223.1MB in the beginning and 222.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 283.68ms. Allocated memory is still 281.0MB. Free memory was 222.0MB in the beginning and 210.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1349.22ms. Allocated memory is still 281.0MB. Free memory was 210.0MB in the beginning and 242.5MB in the end (delta: -32.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 45]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L29] int m = __VERIFIER_nondet_int(); [L30] COND FALSE !(m < 0 || m > 1073741823) [L35] int n = __VERIFIER_nondet_int(); [L36] COND FALSE !(n < 0 || n > 1073741823) VAL [m=0, n=1] [L41] CALL, EXPR addition(m,n) VAL [\old(m)=0, \old(n)=1] [L16] COND FALSE !(n == 0) VAL [\old(m)=0, \old(n)=1, m=0, n=1] [L19] COND TRUE n > 0 VAL [\old(m)=0, \old(n)=1, m=0, n=1] [L20] CALL, EXPR addition(m+1, n-1) VAL [\old(m)=1, \old(n)=0] [L16] COND TRUE n == 0 [L17] return m; VAL [\old(m)=1, \old(n)=0, \result=1, m=1, n=0] [L20] RET, EXPR addition(m+1, n-1) VAL [\old(m)=0, \old(n)=1, addition(m+1, n-1)=1, m=0, n=1] [L20] return addition(m+1, n-1); [L41] RET, EXPR addition(m,n) VAL [addition(m,n)=1, m=0, n=1] [L41] int result = addition(m,n); [L42] COND FALSE !(result == m - n) VAL [m=0, n=1, result=1] [L45] reach_error() VAL [m=0, n=1, result=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 200 IncrementalHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 13 mSDtfsCounter, 200 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-04-02 04:33:54,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...