This is Ultimate 0.2.4-dev-5189fb6-m [2024-09-13 05:15:03,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 05:15:03,355 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-13 05:15:03,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 05:15:03,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 05:15:03,397 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 05:15:03,397 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 05:15:03,398 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 05:15:03,399 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 05:15:03,402 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 05:15:03,403 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 05:15:03,403 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 05:15:03,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 05:15:03,404 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 05:15:03,404 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 05:15:03,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 05:15:03,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 05:15:03,405 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 05:15:03,405 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 05:15:03,405 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 05:15:03,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 05:15:03,407 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 05:15:03,407 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 05:15:03,407 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 05:15:03,408 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 05:15:03,408 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 05:15:03,408 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 05:15:03,408 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 05:15:03,409 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 05:15:03,409 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 05:15:03,416 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 05:15:03,416 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 05:15:03,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:15:03,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 05:15:03,417 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 05:15:03,417 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 05:15:03,417 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 05:15:03,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 05:15:03,417 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 05:15:03,418 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 05:15:03,418 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 05:15:03,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 05:15:03,418 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 05:15:03,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 05:15:03,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 05:15:03,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 05:15:03,680 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 05:15:03,681 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 05:15:03,682 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-lit/ddlm2013.i [2024-09-13 05:15:05,096 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 05:15:05,327 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 05:15:05,327 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/ddlm2013.i [2024-09-13 05:15:05,335 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/54b8e487d/3458ab02faca44368faca4d16b00c703/FLAG0cae674e6 [2024-09-13 05:15:05,659 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/54b8e487d/3458ab02faca44368faca4d16b00c703 [2024-09-13 05:15:05,662 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 05:15:05,664 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 05:15:05,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/ddlm2013.yml/witness-2.1.yml [2024-09-13 05:15:05,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 05:15:05,710 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-13 05:15:05,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 05:15:05,712 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 05:15:05,717 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 05:15:05,717 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:15:05" (1/2) ... [2024-09-13 05:15:05,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f65063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:15:05, skipping insertion in model container [2024-09-13 05:15:05,718 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:15:05" (1/2) ... [2024-09-13 05:15:05,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5b2ddeb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:15:05, skipping insertion in model container [2024-09-13 05:15:05,720 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 05:15:05" (2/2) ... [2024-09-13 05:15:05,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f65063 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:15:05, skipping insertion in model container [2024-09-13 05:15:05,721 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 05:15:05" (2/2) ... [2024-09-13 05:15:05,729 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 05:15:05,730 INFO L1541 ArrayList]: Loop invariant at [L35-L44] ((flag == 0) || (((0 == (i % 2)) && ((a % 4294967296) == (b % 4294967296))) && ((((long long) a + 1) % 4294967296) == (((b + j) + ((unsigned long long) i * 4294967295)) % 4294967296)))) [2024-09-13 05:15:05,730 INFO L1541 ArrayList]: Function contract at [L17]: requires (\old(cond) != 0), ensures (\old(cond) != 0) [2024-09-13 05:15:05,748 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 05:15:05,898 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/ddlm2013.i[895,908] [2024-09-13 05:15:05,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:15:05,930 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-13 05:15:05,968 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/ddlm2013.i[895,908] Start Parsing Local [2024-09-13 05:15:05,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:15:06,000 INFO L204 MainTranslator]: Completed translation [2024-09-13 05:15:06,001 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:15:06 WrapperNode [2024-09-13 05:15:06,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 05:15:06,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-13 05:15:06,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-13 05:15:06,002 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-13 05:15:06,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:15:06" (1/1) ... [2024-09-13 05:15:06,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:15:06" (1/1) ... [2024-09-13 05:15:06,033 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2024-09-13 05:15:06,035 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-13 05:15:06,036 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 05:15:06,036 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 05:15:06,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 05:15:06,045 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:15:06" (1/1) ... [2024-09-13 05:15:06,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:15:06" (1/1) ... [2024-09-13 05:15:06,046 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:15:06" (1/1) ... [2024-09-13 05:15:06,055 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 05:15:06,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:15:06" (1/1) ... [2024-09-13 05:15:06,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:15:06" (1/1) ... [2024-09-13 05:15:06,058 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:15:06" (1/1) ... [2024-09-13 05:15:06,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:15:06" (1/1) ... [2024-09-13 05:15:06,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:15:06" (1/1) ... [2024-09-13 05:15:06,063 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:15:06" (1/1) ... [2024-09-13 05:15:06,064 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 05:15:06,065 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 05:15:06,065 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 05:15:06,065 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 05:15:06,066 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:15:06" (1/1) ... [2024-09-13 05:15:06,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:15:06,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 05:15:06,091 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 05:15:06,092 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 05:15:06,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 05:15:06,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-13 05:15:06,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 05:15:06,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 05:15:06,171 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 05:15:06,173 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 05:15:06,311 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-09-13 05:15:06,311 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 05:15:06,332 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 05:15:06,332 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-13 05:15:06,332 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:15:06 BoogieIcfgContainer [2024-09-13 05:15:06,333 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 05:15:06,338 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-13 05:15:06,338 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-13 05:15:06,342 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-13 05:15:06,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 05:15:05" (1/4) ... [2024-09-13 05:15:06,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff77d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 05:15:06, skipping insertion in model container [2024-09-13 05:15:06,343 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 05:15:05" (2/4) ... [2024-09-13 05:15:06,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff77d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 05:15:06, skipping insertion in model container [2024-09-13 05:15:06,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:15:06" (3/4) ... [2024-09-13 05:15:06,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff77d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 05:15:06, skipping insertion in model container [2024-09-13 05:15:06,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:15:06" (4/4) ... [2024-09-13 05:15:06,345 INFO L112 eAbstractionObserver]: Analyzing ICFG ddlm2013.i [2024-09-13 05:15:06,362 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-13 05:15:06,362 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-09-13 05:15:06,397 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-13 05:15:06,403 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;@e5b4aea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-13 05:15:06,404 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-13 05:15:06,407 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 16 states have internal predecessors, (22), 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 05:15:06,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-09-13 05:15:06,412 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:15:06,413 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-09-13 05:15:06,413 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 05:15:06,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:15:06,417 INFO L85 PathProgramCache]: Analyzing trace with hash 81849, now seen corresponding path program 1 times [2024-09-13 05:15:06,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:15:06,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020209402] [2024-09-13 05:15:06,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:15:06,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:15:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:15:06,927 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 05:15:06,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:15:06,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020209402] [2024-09-13 05:15:06,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020209402] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:15:06,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:15:06,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-13 05:15:06,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351833400] [2024-09-13 05:15:06,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:15:06,937 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-13 05:15:06,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:15:06,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-13 05:15:06,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-13 05:15:06,970 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 16 states have internal predecessors, (22), 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 05:15:07,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:15:07,027 INFO L93 Difference]: Finished difference Result 27 states and 35 transitions. [2024-09-13 05:15:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-13 05:15:07,031 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 05:15:07,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:15:07,040 INFO L225 Difference]: With dead ends: 27 [2024-09-13 05:15:07,041 INFO L226 Difference]: Without dead ends: 23 [2024-09-13 05:15:07,042 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 05:15:07,045 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 13 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:15:07,046 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 27 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:15:07,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-09-13 05:15:07,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 16. [2024-09-13 05:15:07,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.5) internal successors, (18), 15 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 05:15:07,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2024-09-13 05:15:07,072 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 3 [2024-09-13 05:15:07,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:15:07,073 INFO L474 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2024-09-13 05:15:07,073 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 05:15:07,074 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-09-13 05:15:07,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-09-13 05:15:07,074 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:15:07,075 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-09-13 05:15:07,075 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-13 05:15:07,075 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:15:07,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:15:07,076 INFO L85 PathProgramCache]: Analyzing trace with hash 81911, now seen corresponding path program 1 times [2024-09-13 05:15:07,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:15:07,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135753878] [2024-09-13 05:15:07,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:15:07,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:15:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:15:07,118 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 05:15:07,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:15:07,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135753878] [2024-09-13 05:15:07,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135753878] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:15:07,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:15:07,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-13 05:15:07,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437963808] [2024-09-13 05:15:07,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:15:07,121 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-13 05:15:07,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:15:07,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-13 05:15:07,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 05:15:07,122 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 3 states, 2 states have (on average 1.5) 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 05:15:07,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:15:07,138 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2024-09-13 05:15:07,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-13 05:15:07,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) 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 05:15:07,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:15:07,140 INFO L225 Difference]: With dead ends: 21 [2024-09-13 05:15:07,140 INFO L226 Difference]: Without dead ends: 16 [2024-09-13 05:15:07,140 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 05:15:07,142 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 6 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:15:07,143 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 32 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:15:07,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-09-13 05:15:07,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-09-13 05:15:07,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 15 states have internal predecessors, (17), 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 05:15:07,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2024-09-13 05:15:07,148 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 3 [2024-09-13 05:15:07,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:15:07,149 INFO L474 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-09-13 05:15:07,160 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) 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 05:15:07,161 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2024-09-13 05:15:07,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-13 05:15:07,162 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:15:07,162 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:15:07,164 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-13 05:15:07,164 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:15:07,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:15:07,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1718783074, now seen corresponding path program 1 times [2024-09-13 05:15:07,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:15:07,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795970383] [2024-09-13 05:15:07,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:15:07,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:15:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:15:07,325 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 05:15:07,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:15:07,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795970383] [2024-09-13 05:15:07,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795970383] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:15:07,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:15:07,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-13 05:15:07,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176534114] [2024-09-13 05:15:07,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:15:07,327 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-13 05:15:07,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:15:07,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-13 05:15:07,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-13 05:15:07,329 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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 05:15:07,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:15:07,372 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2024-09-13 05:15:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-13 05:15:07,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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 05:15:07,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:15:07,373 INFO L225 Difference]: With dead ends: 19 [2024-09-13 05:15:07,373 INFO L226 Difference]: Without dead ends: 18 [2024-09-13 05:15:07,373 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 05:15:07,374 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:15:07,375 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 32 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:15:07,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-09-13 05:15:07,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-09-13 05:15:07,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 17 states have internal predecessors, (20), 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 05:15:07,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2024-09-13 05:15:07,382 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 7 [2024-09-13 05:15:07,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:15:07,383 INFO L474 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2024-09-13 05:15:07,383 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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 05:15:07,383 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-09-13 05:15:07,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-13 05:15:07,384 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:15:07,384 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:15:07,384 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-13 05:15:07,385 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 05:15:07,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:15:07,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1718781454, now seen corresponding path program 1 times [2024-09-13 05:15:07,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:15:07,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419156865] [2024-09-13 05:15:07,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:15:07,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:15:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:15:08,222 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 05:15:08,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:15:08,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419156865] [2024-09-13 05:15:08,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419156865] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 05:15:08,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240677252] [2024-09-13 05:15:08,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:15:08,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 05:15:08,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 05:15:08,228 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 05:15:08,231 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 05:15:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:15:08,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-13 05:15:08,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 05:15:08,399 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 05:15:08,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 05:15:08,944 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 05:15:08,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240677252] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-13 05:15:08,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-13 05:15:08,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 10 [2024-09-13 05:15:08,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281757626] [2024-09-13 05:15:08,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:15:08,946 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-13 05:15:08,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:15:08,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-13 05:15:08,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-09-13 05:15:08,948 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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 05:15:10,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:15:10,224 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2024-09-13 05:15:10,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-13 05:15:10,225 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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 05:15:10,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:15:10,225 INFO L225 Difference]: With dead ends: 29 [2024-09-13 05:15:10,225 INFO L226 Difference]: Without dead ends: 29 [2024-09-13 05:15:10,226 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-09-13 05:15:10,227 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 26 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-09-13 05:15:10,227 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 42 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-13 05:15:10,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-09-13 05:15:10,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2024-09-13 05:15:10,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 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 05:15:10,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-09-13 05:15:10,230 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 7 [2024-09-13 05:15:10,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:15:10,231 INFO L474 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-09-13 05:15:10,231 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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 05:15:10,231 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-09-13 05:15:10,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-13 05:15:10,232 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:15:10,232 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:15:10,249 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 05:15:10,436 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 05:15:10,437 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:15:10,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:15:10,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1718781392, now seen corresponding path program 1 times [2024-09-13 05:15:10,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:15:10,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900477452] [2024-09-13 05:15:10,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:15:10,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:15:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:15:10,487 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 05:15:10,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:15:10,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900477452] [2024-09-13 05:15:10,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900477452] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:15:10,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:15:10,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-13 05:15:10,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697669874] [2024-09-13 05:15:10,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:15:10,491 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-13 05:15:10,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:15:10,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-13 05:15:10,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-13 05:15:10,494 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 05:15:10,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:15:10,513 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2024-09-13 05:15:10,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-13 05:15:10,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 05:15:10,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:15:10,514 INFO L225 Difference]: With dead ends: 20 [2024-09-13 05:15:10,515 INFO L226 Difference]: Without dead ends: 20 [2024-09-13 05:15:10,515 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-13 05:15:10,516 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 14 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:15:10,516 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 27 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:15:10,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-09-13 05:15:10,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2024-09-13 05:15:10,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.2) internal successors, (18), 16 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 05:15:10,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2024-09-13 05:15:10,521 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2024-09-13 05:15:10,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:15:10,521 INFO L474 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2024-09-13 05:15:10,521 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 05:15:10,522 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2024-09-13 05:15:10,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-13 05:15:10,522 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:15:10,522 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:15:10,522 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-13 05:15:10,527 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:15:10,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:15:10,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1811876961, now seen corresponding path program 1 times [2024-09-13 05:15:10,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:15:10,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235744680] [2024-09-13 05:15:10,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:15:10,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:15:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:15:10,547 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 05:15:10,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:15:10,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235744680] [2024-09-13 05:15:10,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235744680] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:15:10,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:15:10,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-13 05:15:10,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95918874] [2024-09-13 05:15:10,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:15:10,549 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-13 05:15:10,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:15:10,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-13 05:15:10,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 05:15:10,550 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 05:15:10,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:15:10,557 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2024-09-13 05:15:10,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-13 05:15:10,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2024-09-13 05:15:10,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:15:10,560 INFO L225 Difference]: With dead ends: 15 [2024-09-13 05:15:10,561 INFO L226 Difference]: Without dead ends: 12 [2024-09-13 05:15:10,561 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 05:15:10,562 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:15:10,563 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:15:10,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-09-13 05:15:10,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-09-13 05:15:10,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) 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 05:15:10,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-09-13 05:15:10,565 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2024-09-13 05:15:10,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:15:10,565 INFO L474 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-09-13 05:15:10,565 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 05:15:10,566 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-09-13 05:15:10,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-13 05:15:10,566 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:15:10,566 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:15:10,567 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-13 05:15:10,568 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 05:15:10,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:15:10,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1047533225, now seen corresponding path program 1 times [2024-09-13 05:15:10,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:15:10,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626053712] [2024-09-13 05:15:10,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:15:10,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:15:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:15:10,658 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 05:15:10,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:15:10,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626053712] [2024-09-13 05:15:10,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626053712] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 05:15:10,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30724161] [2024-09-13 05:15:10,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:15:10,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 05:15:10,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 05:15:10,662 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 05:15:10,663 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 05:15:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:15:10,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-13 05:15:10,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 05:15:10,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-13 05:15:10,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 05:15:10,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-13 05:15:10,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30724161] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 05:15:10,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 05:15:10,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 6 [2024-09-13 05:15:10,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947391177] [2024-09-13 05:15:10,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 05:15:10,874 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-13 05:15:10,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:15:10,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-13 05:15:10,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-09-13 05:15:10,875 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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 05:15:10,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:15:10,897 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2024-09-13 05:15:10,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-13 05:15:10,897 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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 11 [2024-09-13 05:15:10,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:15:10,898 INFO L225 Difference]: With dead ends: 11 [2024-09-13 05:15:10,898 INFO L226 Difference]: Without dead ends: 0 [2024-09-13 05:15:10,898 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-09-13 05:15:10,899 INFO L434 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:15:10,899 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:15:10,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-13 05:15:10,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-13 05:15:10,900 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 05:15:10,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-13 05:15:10,900 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2024-09-13 05:15:10,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:15:10,900 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-13 05:15:10,901 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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 05:15:10,901 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-13 05:15:10,901 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-13 05:15:10,904 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-09-13 05:15:10,905 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION (2 of 4 remaining) [2024-09-13 05:15:10,905 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2024-09-13 05:15:10,905 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONPOST_CONDITION (0 of 4 remaining) [2024-09-13 05:15:10,923 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-13 05:15:11,109 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-13 05:15:11,113 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:15:11,115 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-13 05:15:11,120 INFO L469 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-09-13 05:15:11,120 INFO L470 ceAbstractionStarter]: WitnessConsidered=1 [2024-09-13 05:15:11,121 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.09 05:15:11 BoogieIcfgContainer [2024-09-13 05:15:11,122 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-13 05:15:11,122 INFO L158 Benchmark]: Toolchain (without parser) took 5412.31ms. Allocated memory was 159.4MB in the beginning and 213.9MB in the end (delta: 54.5MB). Free memory was 124.6MB in the beginning and 121.5MB in the end (delta: 3.1MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. [2024-09-13 05:15:11,122 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 159.4MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:15:11,122 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:15:11,123 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.64ms. Allocated memory is still 159.4MB. Free memory was 124.4MB in the beginning and 109.8MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-13 05:15:11,123 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.48ms. Allocated memory is still 159.4MB. Free memory was 109.8MB in the beginning and 108.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 05:15:11,123 INFO L158 Benchmark]: Boogie Preprocessor took 28.49ms. Allocated memory is still 159.4MB. Free memory was 107.8MB in the beginning and 106.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 05:15:11,124 INFO L158 Benchmark]: RCFGBuilder took 267.51ms. Allocated memory is still 159.4MB. Free memory was 106.4MB in the beginning and 93.1MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 05:15:11,124 INFO L158 Benchmark]: TraceAbstraction took 4783.45ms. Allocated memory was 159.4MB in the beginning and 213.9MB in the end (delta: 54.5MB). Free memory was 92.9MB in the beginning and 121.5MB in the end (delta: -28.6MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2024-09-13 05:15:11,126 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 159.4MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.64ms. Allocated memory is still 159.4MB. Free memory was 124.4MB in the beginning and 109.8MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.48ms. Allocated memory is still 159.4MB. Free memory was 109.8MB in the beginning and 108.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.49ms. Allocated memory is still 159.4MB. Free memory was 107.8MB in the beginning and 106.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 267.51ms. Allocated memory is still 159.4MB. Free memory was 106.4MB in the beginning and 93.1MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4783.45ms. Allocated memory was 159.4MB in the beginning and 213.9MB in the end (delta: 54.5MB). Free memory was 92.9MB in the beginning and 121.5MB in the end (delta: -28.6MB). Peak memory consumption was 29.1MB. 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: 35]: 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, 17 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 190 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 108 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 86 mSDtfsCounter, 108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=4, InterpolantAutomatonStates: 32, 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, 7 MinimizatonAttempts, 17 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 786 SizeOfPredicates, 7 NumberOfNonLiveVariables, 96 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 4/13 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 05:15:11,159 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...