This is Ultimate 0.2.4-dev-5189fb6-m [2024-09-13 05:15:00,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 05:15:00,368 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-13 05:15:00,374 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 05:15:00,374 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 05:15:00,393 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 05:15:00,394 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 05:15:00,394 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 05:15:00,395 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 05:15:00,396 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 05:15:00,396 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 05:15:00,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 05:15:00,397 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 05:15:00,406 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 05:15:00,406 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 05:15:00,407 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 05:15:00,407 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 05:15:00,407 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 05:15:00,408 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 05:15:00,408 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 05:15:00,408 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 05:15:00,409 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 05:15:00,409 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 05:15:00,409 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 05:15:00,410 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 05:15:00,410 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 05:15:00,410 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 05:15:00,410 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 05:15:00,411 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 05:15:00,411 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 05:15:00,411 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 05:15:00,411 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 05:15:00,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:15:00,412 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 05:15:00,412 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 05:15:00,413 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 05:15:00,413 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 05:15:00,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 05:15:00,413 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 05:15:00,414 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 05:15:00,414 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 05:15:00,414 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 05:15:00,415 INFO L153 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/certificate-witnesses-artifact/automizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 05:15:00,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 05:15:00,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 05:15:00,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 05:15:00,666 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 05:15:00,667 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 05:15:00,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/css2003.yml/witness-2.1.yml [2024-09-13 05:15:00,714 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 05:15:00,714 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 05:15:00,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-lit/css2003.i [2024-09-13 05:15:01,981 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 05:15:02,116 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 05:15:02,117 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/css2003.i [2024-09-13 05:15:02,122 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/62b92ddfb/dbfb4cf2b7f44a5abc2ecc0abe273257/FLAG4075225e5 [2024-09-13 05:15:02,133 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/62b92ddfb/dbfb4cf2b7f44a5abc2ecc0abe273257 [2024-09-13 05:15:02,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 05:15:02,134 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-13 05:15:02,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 05:15:02,135 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 05:15:02,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 05:15:02,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:15:00" (1/2) ... [2024-09-13 05:15:02,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5611f806 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:15:02, skipping insertion in model container [2024-09-13 05:15:02,140 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:15:00" (1/2) ... [2024-09-13 05:15:02,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@17ecd13a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:15:02, skipping insertion in model container [2024-09-13 05:15:02,141 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:15:02" (2/2) ... [2024-09-13 05:15:02,142 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5611f806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:15:02, skipping insertion in model container [2024-09-13 05:15:02,142 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:15:02" (2/2) ... [2024-09-13 05:15:02,148 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 05:15:02,148 INFO L1541 ArrayList]: Loop invariant at [L30-L35] ((((2 <= i) && ((i + k) <= 2)) && (1 <= (i + k))) || (((0 <= k) && (k <= 1)) && (i == 1))) [2024-09-13 05:15:02,148 INFO L1541 ArrayList]: Function contract at [L17]: requires (\old(cond) != 0), ensures (\old(cond) != 0) [2024-09-13 05:15:02,160 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 05:15:02,267 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/css2003.i[895,908] [2024-09-13 05:15:02,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:15:02,288 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-13 05:15:02,314 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/css2003.i[895,908] Start Parsing Local [2024-09-13 05:15:02,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:15:02,328 INFO L204 MainTranslator]: Completed translation [2024-09-13 05:15:02,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:15:02 WrapperNode [2024-09-13 05:15:02,328 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 05:15:02,329 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-13 05:15:02,329 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-13 05:15:02,329 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-13 05:15:02,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:15:02" (1/1) ... [2024-09-13 05:15:02,339 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:15:02" (1/1) ... [2024-09-13 05:15:02,350 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2024-09-13 05:15:02,350 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-13 05:15:02,351 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 05:15:02,351 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 05:15:02,351 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 05:15:02,357 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:15:02" (1/1) ... [2024-09-13 05:15:02,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:15:02" (1/1) ... [2024-09-13 05:15:02,358 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:15:02" (1/1) ... [2024-09-13 05:15:02,365 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-13 05:15:02,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:15:02" (1/1) ... [2024-09-13 05:15:02,365 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:15:02" (1/1) ... [2024-09-13 05:15:02,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:15:02" (1/1) ... [2024-09-13 05:15:02,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:15:02" (1/1) ... [2024-09-13 05:15:02,369 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:15:02" (1/1) ... [2024-09-13 05:15:02,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:15:02" (1/1) ... [2024-09-13 05:15:02,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 05:15:02,371 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 05:15:02,371 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 05:15:02,371 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 05:15:02,372 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:15:02" (1/1) ... [2024-09-13 05:15:02,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:15:02,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 05:15:02,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-13 05:15:02,395 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-13 05:15:02,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 05:15:02,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-13 05:15:02,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 05:15:02,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 05:15:02,477 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 05:15:02,478 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 05:15:02,551 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-09-13 05:15:02,551 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 05:15:02,568 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 05:15:02,569 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-13 05:15:02,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:15:02 BoogieIcfgContainer [2024-09-13 05:15:02,569 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 05:15:02,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-13 05:15:02,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-13 05:15:02,578 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-13 05:15:02,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:15:00" (1/4) ... [2024-09-13 05:15:02,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518298fa and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 05:15:02, skipping insertion in model container [2024-09-13 05:15:02,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 05:15:02" (2/4) ... [2024-09-13 05:15:02,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518298fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 05:15:02, skipping insertion in model container [2024-09-13 05:15:02,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:15:02" (3/4) ... [2024-09-13 05:15:02,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518298fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 05:15:02, skipping insertion in model container [2024-09-13 05:15:02,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:15:02" (4/4) ... [2024-09-13 05:15:02,585 INFO L112 eAbstractionObserver]: Analyzing ICFG css2003.i [2024-09-13 05:15:02,602 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-13 05:15:02,602 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-09-13 05:15:02,636 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-13 05:15:02,643 INFO L336 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@6073f68d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-13 05:15:02,643 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-13 05:15:02,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.8) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:15:02,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-09-13 05:15:02,653 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:15:02,653 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-09-13 05:15:02,654 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:15:02,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:15:02,658 INFO L85 PathProgramCache]: Analyzing trace with hash 68457, now seen corresponding path program 1 times [2024-09-13 05:15:02,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:15:02,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884676639] [2024-09-13 05:15:02,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:15:02,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:15:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:15:02,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:15:02,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:15:02,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884676639] [2024-09-13 05:15:02,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884676639] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:15:02,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:15:02,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-13 05:15:02,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524292838] [2024-09-13 05:15:02,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:15:02,848 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-13 05:15:02,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:15:02,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-13 05:15:02,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-13 05:15:02,875 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.8) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:15:02,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:15:02,914 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2024-09-13 05:15:02,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-13 05:15:02,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-09-13 05:15:02,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:15:02,922 INFO L225 Difference]: With dead ends: 18 [2024-09-13 05:15:02,922 INFO L226 Difference]: Without dead ends: 14 [2024-09-13 05:15:02,923 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-13 05:15:02,925 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:15:02,926 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 20 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:15:02,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-09-13 05:15:02,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2024-09-13 05:15:02,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:15:02,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-09-13 05:15:02,947 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 3 [2024-09-13 05:15:02,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:15:02,947 INFO L474 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-09-13 05:15:02,947 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:15:02,947 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-09-13 05:15:02,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-09-13 05:15:02,948 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:15:02,948 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-09-13 05:15:02,948 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-13 05:15:02,948 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:15:02,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:15:02,949 INFO L85 PathProgramCache]: Analyzing trace with hash 65788715, now seen corresponding path program 1 times [2024-09-13 05:15:02,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:15:02,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138177930] [2024-09-13 05:15:02,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:15:02,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:15:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:15:03,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:15:03,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:15:03,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138177930] [2024-09-13 05:15:03,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138177930] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:15:03,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:15:03,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-13 05:15:03,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096442186] [2024-09-13 05:15:03,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:15:03,123 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-13 05:15:03,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:15:03,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-13 05:15:03,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-13 05:15:03,129 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:15:03,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:15:03,171 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2024-09-13 05:15:03,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-13 05:15:03,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-09-13 05:15:03,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:15:03,171 INFO L225 Difference]: With dead ends: 14 [2024-09-13 05:15:03,172 INFO L226 Difference]: Without dead ends: 14 [2024-09-13 05:15:03,172 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-13 05:15:03,173 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:15:03,173 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 16 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:15:03,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-09-13 05:15:03,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-09-13 05:15:03,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:15:03,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2024-09-13 05:15:03,176 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2024-09-13 05:15:03,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:15:03,176 INFO L474 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2024-09-13 05:15:03,176 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:15:03,176 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2024-09-13 05:15:03,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-13 05:15:03,177 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:15:03,177 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:15:03,177 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-13 05:15:03,177 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:15:03,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:15:03,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1201552626, now seen corresponding path program 1 times [2024-09-13 05:15:03,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:15:03,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924816565] [2024-09-13 05:15:03,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:15:03,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:15:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:15:03,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:15:03,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:15:03,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924816565] [2024-09-13 05:15:03,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924816565] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:15:03,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:15:03,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-13 05:15:03,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483131803] [2024-09-13 05:15:03,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:15:03,220 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-13 05:15:03,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:15:03,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-13 05:15:03,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 05:15:03,221 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:15:03,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:15:03,226 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2024-09-13 05:15:03,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-13 05:15:03,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-09-13 05:15:03,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:15:03,227 INFO L225 Difference]: With dead ends: 12 [2024-09-13 05:15:03,228 INFO L226 Difference]: Without dead ends: 12 [2024-09-13 05:15:03,228 INFO L433 NwaCegarLoop]: 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 [2024-09-13 05:15:03,229 INFO L434 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:15:03,229 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:15:03,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-09-13 05:15:03,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-09-13 05:15:03,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:15:03,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-09-13 05:15:03,231 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2024-09-13 05:15:03,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:15:03,231 INFO L474 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-09-13 05:15:03,232 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:15:03,232 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-09-13 05:15:03,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-13 05:15:03,232 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:15:03,232 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:15:03,232 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-13 05:15:03,233 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:15:03,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:15:03,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1406579289, now seen corresponding path program 1 times [2024-09-13 05:15:03,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:15:03,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068159932] [2024-09-13 05:15:03,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:15:03,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:15:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:15:03,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:15:03,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:15:03,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068159932] [2024-09-13 05:15:03,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068159932] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 05:15:03,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912876908] [2024-09-13 05:15:03,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:15:03,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 05:15:03,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 05:15:03,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 05:15:03,353 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-13 05:15:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:15:03,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-13 05:15:03,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 05:15:03,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:15:03,503 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 05:15:03,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:15:03,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912876908] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-13 05:15:03,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-13 05:15:03,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2024-09-13 05:15:03,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379850704] [2024-09-13 05:15:03,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:15:03,613 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-13 05:15:03,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:15:03,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-13 05:15:03,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-09-13 05:15:03,615 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:15:03,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:15:03,635 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2024-09-13 05:15:03,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-13 05:15:03,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-09-13 05:15:03,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:15:03,636 INFO L225 Difference]: With dead ends: 11 [2024-09-13 05:15:03,636 INFO L226 Difference]: Without dead ends: 11 [2024-09-13 05:15:03,636 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-09-13 05:15:03,637 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:15:03,637 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 9 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:15:03,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-09-13 05:15:03,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-09-13 05:15:03,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:15:03,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-09-13 05:15:03,645 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2024-09-13 05:15:03,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:15:03,645 INFO L474 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2024-09-13 05:15:03,646 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:15:03,646 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-09-13 05:15:03,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-13 05:15:03,646 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:15:03,646 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-09-13 05:15:03,660 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-13 05:15:03,851 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 05:15:03,852 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:15:03,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:15:03,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1191999973, now seen corresponding path program 1 times [2024-09-13 05:15:03,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:15:03,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376982984] [2024-09-13 05:15:03,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:15:03,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:15:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:15:03,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:15:03,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:15:03,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376982984] [2024-09-13 05:15:03,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376982984] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 05:15:03,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18402623] [2024-09-13 05:15:03,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:15:03,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 05:15:03,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 05:15:03,983 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 05:15:03,984 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-13 05:15:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:15:04,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-13 05:15:04,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 05:15:04,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:15:04,135 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 05:15:04,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-13 05:15:04,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18402623] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-13 05:15:04,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-13 05:15:04,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 5] total 11 [2024-09-13 05:15:04,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68877756] [2024-09-13 05:15:04,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:15:04,184 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-13 05:15:04,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:15:04,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-13 05:15:04,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-09-13 05:15:04,185 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:15:04,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:15:04,207 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2024-09-13 05:15:04,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-13 05:15:04,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-09-13 05:15:04,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:15:04,209 INFO L225 Difference]: With dead ends: 10 [2024-09-13 05:15:04,209 INFO L226 Difference]: Without dead ends: 0 [2024-09-13 05:15:04,210 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-09-13 05:15:04,212 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:15:04,212 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:15:04,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-13 05:15:04,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-13 05:15:04,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:15:04,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-13 05:15:04,213 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2024-09-13 05:15:04,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:15:04,213 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-13 05:15:04,213 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:15:04,213 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-13 05:15:04,213 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-13 05:15:04,217 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-09-13 05:15:04,217 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION (2 of 4 remaining) [2024-09-13 05:15:04,217 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2024-09-13 05:15:04,218 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONPOST_CONDITION (0 of 4 remaining) [2024-09-13 05:15:04,231 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-13 05:15:04,418 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 05:15:04,422 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-09-13 05:15:04,424 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-13 05:15:04,426 INFO L469 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-09-13 05:15:04,426 INFO L470 ceAbstractionStarter]: WitnessConsidered=1 [2024-09-13 05:15:04,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.09 05:15:04 BoogieIcfgContainer [2024-09-13 05:15:04,427 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-13 05:15:04,427 INFO L158 Benchmark]: Toolchain (without parser) took 2293.46ms. Allocated memory was 188.7MB in the beginning and 251.7MB in the end (delta: 62.9MB). Free memory was 130.9MB in the beginning and 130.3MB in the end (delta: 586.6kB). Peak memory consumption was 65.3MB. Max. memory is 16.1GB. [2024-09-13 05:15:04,428 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 188.7MB. Free memory is still 157.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:15:04,428 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 188.7MB. Free memory is still 155.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:15:04,428 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.52ms. Allocated memory is still 188.7MB. Free memory was 130.5MB in the beginning and 117.2MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-13 05:15:04,428 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.50ms. Allocated memory is still 188.7MB. Free memory was 117.2MB in the beginning and 115.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:15:04,428 INFO L158 Benchmark]: Boogie Preprocessor took 20.15ms. Allocated memory is still 188.7MB. Free memory was 115.9MB in the beginning and 114.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 05:15:04,428 INFO L158 Benchmark]: RCFGBuilder took 197.93ms. Allocated memory is still 188.7MB. Free memory was 114.0MB in the beginning and 102.9MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 05:15:04,429 INFO L158 Benchmark]: TraceAbstraction took 1852.16ms. Allocated memory was 188.7MB in the beginning and 251.7MB in the end (delta: 62.9MB). Free memory was 102.6MB in the beginning and 130.3MB in the end (delta: -27.7MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2024-09-13 05:15:04,432 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.16ms. Allocated memory is still 188.7MB. Free memory is still 157.1MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.62ms. Allocated memory is still 188.7MB. Free memory is still 155.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 193.52ms. Allocated memory is still 188.7MB. Free memory was 130.5MB in the beginning and 117.2MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.50ms. Allocated memory is still 188.7MB. Free memory was 117.2MB in the beginning and 115.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.15ms. Allocated memory is still 188.7MB. Free memory was 115.9MB in the beginning and 114.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 197.93ms. Allocated memory is still 188.7MB. Free memory was 114.0MB in the beginning and 102.9MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1852.16ms. Allocated memory was 188.7MB in the beginning and 251.7MB in the end (delta: 62.9MB). Free memory was 102.6MB in the beginning and 130.3MB in the end (delta: -27.7MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. * 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 - PositiveResult [Line: 30]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 17]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 17]: procedure postcondition always holds For all program executions holds that procedure postcondition always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 33 mSDtfsCounter, 59 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 21, 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, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 477 SizeOfPredicates, 3 NumberOfNonLiveVariables, 94 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 4/12 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-13 05:15:04,454 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...