This is Ultimate 0.2.4-tmp.dk.referee-eval-04d6fb3-m [2024-09-15 20:25:50,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-15 20:25:50,319 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-15 20:25:50,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-15 20:25:50,325 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-15 20:25:50,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-15 20:25:50,350 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-15 20:25:50,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-15 20:25:50,351 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-15 20:25:50,354 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-15 20:25:50,354 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-15 20:25:50,354 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-15 20:25:50,355 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-15 20:25:50,355 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-15 20:25:50,357 INFO L153 SettingsManager]: * Use SBE=true [2024-09-15 20:25:50,357 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-15 20:25:50,358 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-15 20:25:50,358 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-15 20:25:50,358 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-15 20:25:50,358 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-15 20:25:50,358 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-15 20:25:50,359 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-15 20:25:50,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-15 20:25:50,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-15 20:25:50,359 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-15 20:25:50,359 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-15 20:25:50,359 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-15 20:25:50,360 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-15 20:25:50,360 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-15 20:25:50,360 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-15 20:25:50,360 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-15 20:25:50,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-15 20:25:50,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:25:50,361 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-15 20:25:50,361 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-15 20:25:50,361 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-15 20:25:50,361 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-15 20:25:50,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-15 20:25:50,361 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-15 20:25:50,361 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-15 20:25:50,362 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-15 20:25:50,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-15 20:25:50,363 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-15 20:25:50,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-15 20:25:50,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-15 20:25:50,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-15 20:25:50,652 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-15 20:25:50,652 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-15 20:25:50,653 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/recursified_nested_1.yml/witness-2.1.yml [2024-09-15 20:25:50,691 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-15 20:25:50,691 INFO L274 PluginConnector]: CDTParser initialized [2024-09-15 20:25:50,692 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursified_loop-simple/recursified_nested_1.c [2024-09-15 20:25:52,077 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-15 20:25:52,232 INFO L384 CDTParser]: Found 1 translation units. [2024-09-15 20:25:52,233 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursified_loop-simple/recursified_nested_1.c [2024-09-15 20:25:52,239 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/2d74f0c92/b3a533f1dc1f46b48c9b9de9d4225a15/FLAGc726da398 [2024-09-15 20:25:52,646 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/2d74f0c92/b3a533f1dc1f46b48c9b9de9d4225a15 [2024-09-15 20:25:52,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-15 20:25:52,647 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-15 20:25:52,653 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-15 20:25:52,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-15 20:25:52,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-15 20:25:52,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:25:50" (1/2) ... [2024-09-15 20:25:52,658 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3923473f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:25:52, skipping insertion in model container [2024-09-15 20:25:52,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:25:50" (1/2) ... [2024-09-15 20:25:52,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@47c1ad91 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:25:52, skipping insertion in model container [2024-09-15 20:25:52,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:25:52" (2/2) ... [2024-09-15 20:25:52,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3923473f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:52, skipping insertion in model container [2024-09-15 20:25:52,660 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:25:52" (2/2) ... [2024-09-15 20:25:52,663 INFO L90 nessWitnessExtractor]: Witness did not contain any usable entries. [2024-09-15 20:25:52,676 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-15 20:25:52,782 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursified_loop-simple/recursified_nested_1.c[1277,1290] [2024-09-15 20:25:52,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:25:52,791 INFO L200 MainTranslator]: Completed pre-run [2024-09-15 20:25:52,805 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursified_loop-simple/recursified_nested_1.c[1277,1290] [2024-09-15 20:25:52,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:25:52,826 INFO L204 MainTranslator]: Completed translation [2024-09-15 20:25:52,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:52 WrapperNode [2024-09-15 20:25:52,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-15 20:25:52,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-15 20:25:52,828 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-15 20:25:52,828 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-15 20:25:52,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:52" (1/1) ... [2024-09-15 20:25:52,841 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:52" (1/1) ... [2024-09-15 20:25:52,851 INFO L138 Inliner]: procedures = 12, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2024-09-15 20:25:52,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-15 20:25:52,852 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-15 20:25:52,852 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-15 20:25:52,852 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-15 20:25:52,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:52" (1/1) ... [2024-09-15 20:25:52,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:52" (1/1) ... [2024-09-15 20:25:52,864 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:52" (1/1) ... [2024-09-15 20:25:52,875 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 2 writes are split as follows [0, 2]. [2024-09-15 20:25:52,875 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:52" (1/1) ... [2024-09-15 20:25:52,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:52" (1/1) ... [2024-09-15 20:25:52,879 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:52" (1/1) ... [2024-09-15 20:25:52,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:52" (1/1) ... [2024-09-15 20:25:52,881 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:52" (1/1) ... [2024-09-15 20:25:52,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:52" (1/1) ... [2024-09-15 20:25:52,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-15 20:25:52,887 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-15 20:25:52,887 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-15 20:25:52,887 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-15 20:25:52,888 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:52" (1/1) ... [2024-09-15 20:25:52,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:25:52,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:25:52,913 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) [2024-09-15 20:25:52,915 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 [2024-09-15 20:25:52,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-15 20:25:52,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-09-15 20:25:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-15 20:25:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_19_to_19_0 [2024-09-15 20:25:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_19_to_19_0 [2024-09-15 20:25:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-15 20:25:52,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-15 20:25:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-15 20:25:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-09-15 20:25:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-15 20:25:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-15 20:25:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-15 20:25:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-15 20:25:53,014 INFO L242 CfgBuilder]: Building ICFG [2024-09-15 20:25:53,022 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-15 20:25:53,106 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-09-15 20:25:53,106 INFO L291 CfgBuilder]: Performing block encoding [2024-09-15 20:25:53,135 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-15 20:25:53,136 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-15 20:25:53,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:25:53 BoogieIcfgContainer [2024-09-15 20:25:53,136 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-15 20:25:53,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-15 20:25:53,153 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-15 20:25:53,156 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-15 20:25:53,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:25:50" (1/4) ... [2024-09-15 20:25:53,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5e567f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 15.09 08:25:53, skipping insertion in model container [2024-09-15 20:25:53,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 08:25:52" (2/4) ... [2024-09-15 20:25:53,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5e567f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:25:53, skipping insertion in model container [2024-09-15 20:25:53,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:25:52" (3/4) ... [2024-09-15 20:25:53,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5e567f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:25:53, skipping insertion in model container [2024-09-15 20:25:53,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:25:53" (4/4) ... [2024-09-15 20:25:53,158 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_nested_1.c [2024-09-15 20:25:53,169 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-15 20:25:53,169 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-15 20:25:53,214 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-15 20:25:53,225 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;@72eb5fdf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-15 20:25:53,225 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-15 20:25:53,227 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-15 20:25:53,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-15 20:25:53,232 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:25:53,232 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:25:53,232 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:25:53,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:25:53,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1146450700, now seen corresponding path program 1 times [2024-09-15 20:25:53,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:25:53,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911204315] [2024-09-15 20:25:53,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:25:53,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:25:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:53,527 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:25:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:53,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 20:25:53,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:25:53,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911204315] [2024-09-15 20:25:53,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911204315] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 20:25:53,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 20:25:53,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-15 20:25:53,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399578212] [2024-09-15 20:25:53,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 20:25:53,635 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-15 20:25:53,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:25:53,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-15 20:25:53,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-15 20:25:53,658 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 20:25:53,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:25:53,780 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2024-09-15 20:25:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-15 20:25:53,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-09-15 20:25:53,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:25:53,787 INFO L225 Difference]: With dead ends: 15 [2024-09-15 20:25:53,787 INFO L226 Difference]: Without dead ends: 13 [2024-09-15 20:25:53,788 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-09-15 20:25:53,791 INFO L434 NwaCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 20:25:53,792 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 30 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 20:25:53,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-09-15 20:25:53,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-09-15 20:25:53,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-15 20:25:53,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2024-09-15 20:25:53,820 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2024-09-15 20:25:53,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:25:53,821 INFO L474 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-09-15 20:25:53,822 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 20:25:53,822 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-09-15 20:25:53,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-09-15 20:25:53,824 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:25:53,824 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:25:53,825 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-15 20:25:53,825 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:25:53,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:25:53,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1151650808, now seen corresponding path program 1 times [2024-09-15 20:25:53,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:25:53,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25759962] [2024-09-15 20:25:53,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:25:53,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:25:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:53,963 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:25:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:54,095 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:25:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:54,182 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-15 20:25:54,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:25:54,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25759962] [2024-09-15 20:25:54,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25759962] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:25:54,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074588375] [2024-09-15 20:25:54,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:25:54,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:25:54,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:25:54,187 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) [2024-09-15 20:25:54,188 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-15 20:25:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:54,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-15 20:25:54,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:25:54,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-09-15 20:25:54,496 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-15 20:25:54,496 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:25:54,807 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 20:25:54,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074588375] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-15 20:25:54,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-15 20:25:54,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 21 [2024-09-15 20:25:54,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697752721] [2024-09-15 20:25:54,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-15 20:25:54,809 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-15 20:25:54,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:25:54,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-15 20:25:54,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-09-15 20:25:54,811 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 22 states, 16 states have (on average 1.4375) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-15 20:25:54,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:25:54,913 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2024-09-15 20:25:54,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-15 20:25:54,913 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 16 states have (on average 1.4375) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) Word has length 14 [2024-09-15 20:25:54,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:25:54,914 INFO L225 Difference]: With dead ends: 17 [2024-09-15 20:25:54,914 INFO L226 Difference]: Without dead ends: 17 [2024-09-15 20:25:54,914 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2024-09-15 20:25:54,915 INFO L434 NwaCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-15 20:25:54,915 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 55 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-15 20:25:54,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-09-15 20:25:54,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-09-15 20:25:54,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-15 20:25:54,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2024-09-15 20:25:54,918 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 14 [2024-09-15 20:25:54,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:25:54,919 INFO L474 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2024-09-15 20:25:54,919 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 16 states have (on average 1.4375) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-15 20:25:54,919 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2024-09-15 20:25:54,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-15 20:25:54,920 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:25:54,920 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:25:54,936 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-15 20:25:55,123 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:25:55,124 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:25:55,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:25:55,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1489619010, now seen corresponding path program 2 times [2024-09-15 20:25:55,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:25:55,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128426328] [2024-09-15 20:25:55,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:25:55,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:25:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:55,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:25:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:55,510 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:25:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:55,614 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:25:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:55,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:25:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:25:55,699 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-09-15 20:25:55,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:25:55,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128426328] [2024-09-15 20:25:55,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128426328] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:25:55,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915116877] [2024-09-15 20:25:55,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-15 20:25:55,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:25:55,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:25:55,702 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) [2024-09-15 20:25:55,714 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-15 20:25:55,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-15 20:25:55,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-15 20:25:55,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-09-15 20:25:55,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:25:55,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-09-15 20:25:55,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-09-15 20:25:55,968 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-15 20:25:55,968 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:25:56,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-09-15 20:26:08,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915116877] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:26:08,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-15 20:26:08,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 19 [2024-09-15 20:26:08,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749417001] [2024-09-15 20:26:08,893 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-15 20:26:08,894 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-15 20:26:08,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:26:08,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-15 20:26:08,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=595, Unknown=3, NotChecked=0, Total=702 [2024-09-15 20:26:08,895 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 20 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 18 states have internal predecessors, (22), 5 states have call successors, (5), 1 states have call predecessors, (5), 8 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-15 20:26:09,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:26:09,058 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2024-09-15 20:26:09,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-15 20:26:09,059 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 18 states have internal predecessors, (22), 5 states have call successors, (5), 1 states have call predecessors, (5), 8 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) Word has length 24 [2024-09-15 20:26:09,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:26:09,059 INFO L225 Difference]: With dead ends: 21 [2024-09-15 20:26:09,059 INFO L226 Difference]: Without dead ends: 21 [2024-09-15 20:26:09,060 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=167, Invalid=886, Unknown=3, NotChecked=0, Total=1056 [2024-09-15 20:26:09,060 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 9 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 20:26:09,061 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 73 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 20:26:09,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-09-15 20:26:09,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-09-15 20:26:09,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (7), 6 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-15 20:26:09,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2024-09-15 20:26:09,066 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 24 [2024-09-15 20:26:09,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:26:09,066 INFO L474 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2024-09-15 20:26:09,067 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 18 states have internal predecessors, (22), 5 states have call successors, (5), 1 states have call predecessors, (5), 8 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2024-09-15 20:26:09,067 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2024-09-15 20:26:09,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-09-15 20:26:09,068 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:26:09,068 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:26:09,085 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-15 20:26:09,273 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:26:09,274 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:26:09,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:26:09,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1362462852, now seen corresponding path program 3 times [2024-09-15 20:26:09,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:26:09,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194787889] [2024-09-15 20:26:09,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:26:09,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:26:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:09,489 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:26:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:09,656 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:09,807 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:09,890 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:09,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:10,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:10,040 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 8 proven. 35 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-09-15 20:26:10,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:26:10,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194787889] [2024-09-15 20:26:10,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194787889] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:26:10,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644482735] [2024-09-15 20:26:10,040 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-15 20:26:10,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:26:10,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:26:10,042 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-15 20:26:10,043 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-15 20:26:10,098 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-09-15 20:26:10,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-15 20:26:10,101 WARN L260 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 77 conjuncts are in the unsatisfiable core [2024-09-15 20:26:10,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:26:10,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-09-15 20:26:10,375 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-09-15 20:26:10,376 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:26:12,032 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 20:26:12,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644482735] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-15 20:26:12,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-15 20:26:12,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 25] total 42 [2024-09-15 20:26:12,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699542393] [2024-09-15 20:26:12,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-15 20:26:12,034 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-09-15 20:26:12,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:26:12,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-09-15 20:26:12,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=1480, Unknown=0, NotChecked=0, Total=1806 [2024-09-15 20:26:12,035 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 43 states, 32 states have (on average 1.25) internal successors, (40), 35 states have internal predecessors, (40), 11 states have call successors, (11), 7 states have call predecessors, (11), 13 states have return successors, (18), 12 states have call predecessors, (18), 11 states have call successors, (18) [2024-09-15 20:26:12,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:26:12,299 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2024-09-15 20:26:12,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-15 20:26:12,300 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 32 states have (on average 1.25) internal successors, (40), 35 states have internal predecessors, (40), 11 states have call successors, (11), 7 states have call predecessors, (11), 13 states have return successors, (18), 12 states have call predecessors, (18), 11 states have call successors, (18) Word has length 34 [2024-09-15 20:26:12,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:26:12,301 INFO L225 Difference]: With dead ends: 23 [2024-09-15 20:26:12,301 INFO L226 Difference]: Without dead ends: 23 [2024-09-15 20:26:12,302 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 45 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 951 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=476, Invalid=2074, Unknown=0, NotChecked=0, Total=2550 [2024-09-15 20:26:12,303 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 20:26:12,303 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 138 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 20:26:12,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-09-15 20:26:12,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-09-15 20:26:12,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 14 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (8), 7 states have call predecessors, (8), 2 states have call successors, (8) [2024-09-15 20:26:12,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2024-09-15 20:26:12,310 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 34 [2024-09-15 20:26:12,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:26:12,311 INFO L474 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2024-09-15 20:26:12,311 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 32 states have (on average 1.25) internal successors, (40), 35 states have internal predecessors, (40), 11 states have call successors, (11), 7 states have call predecessors, (11), 13 states have return successors, (18), 12 states have call predecessors, (18), 11 states have call successors, (18) [2024-09-15 20:26:12,311 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2024-09-15 20:26:12,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-15 20:26:12,312 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:26:12,312 INFO L216 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 20:26:12,325 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-15 20:26:12,516 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:26:12,517 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 20:26:12,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:26:12,518 INFO L85 PathProgramCache]: Analyzing trace with hash -2002779038, now seen corresponding path program 4 times [2024-09-15 20:26:12,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:26:12,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786415337] [2024-09-15 20:26:12,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:26:12,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:26:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:12,832 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-15 20:26:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:13,142 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:13,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:13,363 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:13,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:13,450 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:13,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-09-15 20:26:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 20:26:13,552 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 18 proven. 28 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-09-15 20:26:13,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 20:26:13,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786415337] [2024-09-15 20:26:13,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786415337] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 20:26:13,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488012368] [2024-09-15 20:26:13,553 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-15 20:26:13,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:26:13,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:26:13,555 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-15 20:26:13,556 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-15 20:26:13,617 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-15 20:26:13,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-15 20:26:13,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-09-15 20:26:13,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 20:26:13,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-09-15 20:26:13,758 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 16 proven. 18 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-09-15 20:26:13,758 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 20:26:14,524 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-09-15 20:26:14,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 25 [2024-09-15 20:26:14,794 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-09-15 20:26:14,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 25 [2024-09-15 20:26:15,080 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-09-15 20:26:15,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 25 [2024-09-15 20:26:15,273 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-09-15 20:26:15,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 25 [2024-09-15 20:26:15,385 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-09-15 20:26:15,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 25 [2024-09-15 20:26:15,636 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-09-15 20:26:15,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488012368] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-15 20:26:15,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-15 20:26:15,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 23 [2024-09-15 20:26:15,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367977005] [2024-09-15 20:26:15,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-15 20:26:15,638 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-15 20:26:15,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 20:26:15,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-15 20:26:15,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2024-09-15 20:26:15,639 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 23 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 20 states have internal predecessors, (27), 6 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (7), 3 states have call predecessors, (7), 6 states have call successors, (7) [2024-09-15 20:26:15,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 20:26:15,804 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2024-09-15 20:26:15,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-15 20:26:15,804 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 20 states have internal predecessors, (27), 6 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (7), 3 states have call predecessors, (7), 6 states have call successors, (7) Word has length 39 [2024-09-15 20:26:15,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 20:26:15,805 INFO L225 Difference]: With dead ends: 21 [2024-09-15 20:26:15,805 INFO L226 Difference]: Without dead ends: 0 [2024-09-15 20:26:15,805 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2024-09-15 20:26:15,806 INFO L434 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 20:26:15,806 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 27 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 20:26:15,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-15 20:26:15,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-15 20:26:15,807 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) [2024-09-15 20:26:15,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-15 20:26:15,807 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2024-09-15 20:26:15,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 20:26:15,807 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-15 20:26:15,807 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 20 states have internal predecessors, (27), 6 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (7), 3 states have call predecessors, (7), 6 states have call successors, (7) [2024-09-15 20:26:15,808 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-15 20:26:15,808 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-15 20:26:15,810 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-15 20:26:15,824 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-15 20:26:16,014 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 20:26:16,018 INFO L408 BasicCegarLoop]: Path program histogram: [4, 1] [2024-09-15 20:26:16,020 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-15 20:26:16,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 08:26:16 BoogieIcfgContainer [2024-09-15 20:26:16,023 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-15 20:26:16,023 INFO L158 Benchmark]: Toolchain (without parser) took 23375.81ms. Allocated memory was 73.4MB in the beginning and 188.7MB in the end (delta: 115.3MB). Free memory was 37.9MB in the beginning and 127.8MB in the end (delta: -89.9MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2024-09-15 20:26:16,023 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 50.3MB. Free memory is still 33.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:26:16,024 INFO L158 Benchmark]: CDTParser took 1.19ms. Allocated memory is still 50.3MB. Free memory was 31.8MB in the beginning and 31.8MB in the end (delta: 62.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:26:16,024 INFO L158 Benchmark]: CACSL2BoogieTranslator took 173.97ms. Allocated memory is still 73.4MB. Free memory was 37.6MB in the beginning and 46.6MB in the end (delta: -9.0MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2024-09-15 20:26:16,024 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.32ms. Allocated memory is still 73.4MB. Free memory was 46.6MB in the beginning and 45.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:26:16,024 INFO L158 Benchmark]: Boogie Preprocessor took 34.71ms. Allocated memory is still 73.4MB. Free memory was 45.0MB in the beginning and 43.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-15 20:26:16,024 INFO L158 Benchmark]: RCFGBuilder took 249.27ms. Allocated memory is still 73.4MB. Free memory was 43.3MB in the beginning and 32.8MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-15 20:26:16,024 INFO L158 Benchmark]: TraceAbstraction took 22870.08ms. Allocated memory was 73.4MB in the beginning and 188.7MB in the end (delta: 115.3MB). Free memory was 53.3MB in the beginning and 127.8MB in the end (delta: -74.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-09-15 20:26:16,028 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 50.3MB. Free memory is still 33.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 1.19ms. Allocated memory is still 50.3MB. Free memory was 31.8MB in the beginning and 31.8MB in the end (delta: 62.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 173.97ms. Allocated memory is still 73.4MB. Free memory was 37.6MB in the beginning and 46.6MB in the end (delta: -9.0MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.32ms. Allocated memory is still 73.4MB. Free memory was 46.6MB in the beginning and 45.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.71ms. Allocated memory is still 73.4MB. Free memory was 45.0MB in the beginning and 43.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 249.27ms. Allocated memory is still 73.4MB. Free memory was 43.3MB in the beginning and 32.8MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 22870.08ms. Allocated memory was 73.4MB in the beginning and 188.7MB in the end (delta: 115.3MB). Free memory was 53.3MB in the beginning and 127.8MB in the end (delta: -74.4MB). Peak memory consumption was 39.8MB. 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: 48]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.8s, OverallIterations: 5, TraceHistogramMax: 7, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 323 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 281 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 510 IncrementalHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 42 mSDtfsCounter, 510 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 309 GetRequests, 167 SyntacticMatches, 6 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1448 ImplicationChecksByTransitivity, 14.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=4, InterpolantAutomatonStates: 49, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 20.6s InterpolantComputationTime, 231 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 306 ConstructedInterpolants, 4 QuantifiedInterpolants, 2925 SizeOfPredicates, 46 NumberOfNonLiveVariables, 480 ConjunctsInSsa, 225 ConjunctsInUnsatCore, 12 InterpolantComputations, 1 PerfectInterpolantSequences, 319/573 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-15 20:26:16,051 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...