This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:35:34,623 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:35:34,701 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-20 13:35:34,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:35:34,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:35:34,723 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:35:34,724 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:35:34,724 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:35:34,725 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:35:34,726 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:35:34,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:35:34,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:35:34,727 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:35:34,728 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:35:34,728 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:35:34,729 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:35:34,729 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:35:34,729 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:35:34,730 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:35:34,730 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:35:34,730 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:35:34,734 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:35:34,734 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:35:34,734 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:35:34,735 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:35:34,737 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:35:34,737 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:35:34,737 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:35:34,738 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:35:34,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:35:34,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:35:34,738 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:35:34,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:35:34,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:35:34,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:35:34,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:35:34,740 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:35:34,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:35:34,741 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:35:34,741 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:35:34,741 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:35:34,742 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:35:34,742 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:35:34,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:35:35,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:35:35,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:35:35,015 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:35:35,015 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:35:35,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound50.c [2024-09-20 13:35:36,421 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:35:36,603 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:35:36,604 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound50.c [2024-09-20 13:35:36,610 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/e5533debf/7f03619acc9a43d78377630bb4a6b5d6/FLAG3686a8b5c [2024-09-20 13:35:36,622 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/e5533debf/7f03619acc9a43d78377630bb4a6b5d6 [2024-09-20 13:35:36,624 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:35:36,625 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:35:36,625 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/fermat2-ll_valuebound50.yml/witness-2.1.yml [2024-09-20 13:35:36,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:35:36,675 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-20 13:35:36,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:35:36,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:35:36,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:35:36,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:35:36" (1/2) ... [2024-09-20 13:35:36,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ecf910f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:35:36, skipping insertion in model container [2024-09-20 13:35:36,687 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:35:36" (1/2) ... [2024-09-20 13:35:36,689 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3afcbbea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:35:36, skipping insertion in model container [2024-09-20 13:35:36,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:35:36" (2/2) ... [2024-09-20 13:35:36,689 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ecf910f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:35:36, skipping insertion in model container [2024-09-20 13:35:36,689 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:35:36" (2/2) ... [2024-09-20 13:35:36,698 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:35:36,699 INFO L1541 ArrayList]: Loop invariant at [L35-L46] ((((__int128) v * 2) + ((__int128) u * u)) == (((((__int128) v * v) + ((__int128) u * 2)) + ((long long) A * 4)) + ((__int128) r * 4))) [2024-09-20 13:35:36,699 INFO L1541 ArrayList]: Function contract at [L11]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-20 13:35:36,715 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:35:36,863 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/nla-digbench-scaling/fermat2-ll_valuebound50.c[524,537] [2024-09-20 13:35:36,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:35:36,890 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-20 13:35:36,939 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/nla-digbench-scaling/fermat2-ll_valuebound50.c[524,537] Start Parsing Local [2024-09-20 13:35:36,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:35:36,968 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:35:36,968 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:35:36 WrapperNode [2024-09-20 13:35:36,969 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:35:36,970 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-20 13:35:36,970 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-20 13:35:36,970 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-20 13:35:36,976 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 20.09 01:35:36" (1/1) ... [2024-09-20 13:35:36,982 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 20.09 01:35:36" (1/1) ... [2024-09-20 13:35:36,997 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2024-09-20 13:35:36,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-20 13:35:36,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:35:36,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:35:36,998 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:35:37,006 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 20.09 01:35:36" (1/1) ... [2024-09-20 13:35:37,006 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 20.09 01:35:36" (1/1) ... [2024-09-20 13:35:37,007 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 20.09 01:35:36" (1/1) ... [2024-09-20 13:35:37,016 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-20 13:35:37,016 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 20.09 01:35:36" (1/1) ... [2024-09-20 13:35:37,017 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 20.09 01:35:36" (1/1) ... [2024-09-20 13:35:37,019 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 20.09 01:35:36" (1/1) ... [2024-09-20 13:35:37,022 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 20.09 01:35:36" (1/1) ... [2024-09-20 13:35:37,023 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 20.09 01:35:36" (1/1) ... [2024-09-20 13:35:37,024 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 20.09 01:35:36" (1/1) ... [2024-09-20 13:35:37,025 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:35:37,026 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:35:37,026 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:35:37,026 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:35:37,028 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 20.09 01:35:36" (1/1) ... [2024-09-20 13:35:37,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:35:37,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:35:37,056 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) [2024-09-20 13:35:37,058 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 [2024-09-20 13:35:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:35:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:35:37,096 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:35:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 13:35:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:35:37,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:35:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:35:37,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:35:37,166 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:35:37,168 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:35:37,295 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:35:37,318 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-09-20 13:35:37,319 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:35:37,340 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:35:37,340 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 13:35:37,340 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:35:37 BoogieIcfgContainer [2024-09-20 13:35:37,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:35:37,343 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-20 13:35:37,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-20 13:35:37,347 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-20 13:35:37,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:35:36" (1/4) ... [2024-09-20 13:35:37,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16065483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:35:37, skipping insertion in model container [2024-09-20 13:35:37,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:35:36" (2/4) ... [2024-09-20 13:35:37,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16065483 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.09 01:35:37, skipping insertion in model container [2024-09-20 13:35:37,349 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 20.09 01:35:36" (3/4) ... [2024-09-20 13:35:37,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16065483 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.09 01:35:37, skipping insertion in model container [2024-09-20 13:35:37,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:35:37" (4/4) ... [2024-09-20 13:35:37,351 INFO L112 eAbstractionObserver]: Analyzing ICFG fermat2-ll_valuebound50.c [2024-09-20 13:35:37,364 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-20 13:35:37,365 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-09-20 13:35:37,401 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-20 13:35:37,408 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;@4387b010, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-20 13:35:37,408 INFO L337 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-09-20 13:35:37,412 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 20 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-20 13:35:37,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-20 13:35:37,419 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:35:37,420 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:35:37,424 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 2 more)] === [2024-09-20 13:35:37,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:35:37,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1685682563, now seen corresponding path program 1 times [2024-09-20 13:35:37,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:35:37,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467150145] [2024-09-20 13:35:37,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:35:37,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:35:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:37,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-20 13:35:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:37,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 13:35:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:37,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-20 13:35:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:37,639 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 13:35:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:37,647 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-20 13:35:37,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:35:37,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467150145] [2024-09-20 13:35:37,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467150145] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 13:35:37,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 13:35:37,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-20 13:35:37,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073218380] [2024-09-20 13:35:37,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 13:35:37,656 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-20 13:35:37,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:35:37,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-20 13:35:37,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-20 13:35:37,700 INFO L87 Difference]: Start difference. First operand has 29 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 20 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-20 13:35:37,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:35:37,729 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2024-09-20 13:35:37,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-20 13:35:37,732 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2024-09-20 13:35:37,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:35:37,739 INFO L225 Difference]: With dead ends: 29 [2024-09-20 13:35:37,740 INFO L226 Difference]: Without dead ends: 27 [2024-09-20 13:35:37,742 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-20 13:35:37,746 INFO L434 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-20 13:35:37,748 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-20 13:35:37,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-09-20 13:35:37,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-09-20 13:35:37,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-20 13:35:37,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2024-09-20 13:35:37,782 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 24 [2024-09-20 13:35:37,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:35:37,783 INFO L474 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2024-09-20 13:35:37,783 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-20 13:35:37,783 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2024-09-20 13:35:37,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-20 13:35:37,785 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:35:37,785 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:35:37,785 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-20 13:35:37,785 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 2 more)] === [2024-09-20 13:35:37,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:35:37,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1360942913, now seen corresponding path program 1 times [2024-09-20 13:35:37,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:35:37,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582477367] [2024-09-20 13:35:37,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:35:37,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:35:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-20 13:35:37,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [234084623] [2024-09-20 13:35:37,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:35:37,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:35:37,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:35:37,851 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) [2024-09-20 13:35:37,854 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-20 13:35:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:37,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-20 13:35:37,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:35:38,052 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-20 13:35:38,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-20 13:35:38,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:35:38,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582477367] [2024-09-20 13:35:38,053 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-20 13:35:38,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234084623] [2024-09-20 13:35:38,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234084623] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 13:35:38,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 13:35:38,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-20 13:35:38,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508066500] [2024-09-20 13:35:38,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 13:35:38,056 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-20 13:35:38,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:35:38,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-20 13:35:38,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-20 13:35:38,058 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-20 13:35:39,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:35:39,623 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2024-09-20 13:35:39,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-20 13:35:39,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2024-09-20 13:35:39,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:35:39,625 INFO L225 Difference]: With dead ends: 32 [2024-09-20 13:35:39,625 INFO L226 Difference]: Without dead ends: 32 [2024-09-20 13:35:39,626 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-20 13:35:39,627 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 3 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-09-20 13:35:39,628 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 46 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-09-20 13:35:39,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-09-20 13:35:39,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-09-20 13:35:39,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 20 states have (on average 1.35) internal successors, (27), 23 states have internal predecessors, (27), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-20 13:35:39,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2024-09-20 13:35:39,639 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 24 [2024-09-20 13:35:39,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:35:39,640 INFO L474 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2024-09-20 13:35:39,640 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-20 13:35:39,640 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2024-09-20 13:35:39,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-20 13:35:39,641 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:35:39,641 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:35:39,657 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-20 13:35:39,842 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 [2024-09-20 13:35:39,843 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 2 more)] === [2024-09-20 13:35:39,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:35:39,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1727196550, now seen corresponding path program 1 times [2024-09-20 13:35:39,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:35:39,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92730160] [2024-09-20 13:35:39,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:35:39,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:35:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:39,969 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-20 13:35:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:39,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 13:35:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:39,979 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-20 13:35:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:39,984 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 13:35:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:39,990 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-20 13:35:39,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:35:39,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92730160] [2024-09-20 13:35:39,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92730160] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 13:35:39,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 13:35:39,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-20 13:35:39,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634852536] [2024-09-20 13:35:39,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 13:35:39,992 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-20 13:35:39,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:35:39,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-20 13:35:39,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-20 13:35:39,994 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-20 13:35:40,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:35:40,008 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2024-09-20 13:35:40,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-20 13:35:40,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2024-09-20 13:35:40,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:35:40,011 INFO L225 Difference]: With dead ends: 30 [2024-09-20 13:35:40,011 INFO L226 Difference]: Without dead ends: 30 [2024-09-20 13:35:40,011 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-20 13:35:40,013 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-20 13:35:40,013 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-20 13:35:40,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-09-20 13:35:40,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-09-20 13:35:40,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-20 13:35:40,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2024-09-20 13:35:40,020 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 29 [2024-09-20 13:35:40,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:35:40,020 INFO L474 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2024-09-20 13:35:40,020 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-20 13:35:40,021 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2024-09-20 13:35:40,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-09-20 13:35:40,021 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:35:40,022 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:35:40,022 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-20 13:35:40,022 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 2 more)] === [2024-09-20 13:35:40,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:35:40,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1727196389, now seen corresponding path program 1 times [2024-09-20 13:35:40,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:35:40,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317646909] [2024-09-20 13:35:40,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:35:40,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:35:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:40,101 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-20 13:35:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:40,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 13:35:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:40,115 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-20 13:35:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:40,128 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 13:35:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:40,135 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-20 13:35:40,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:35:40,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317646909] [2024-09-20 13:35:40,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317646909] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 13:35:40,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 13:35:40,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-20 13:35:40,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781185513] [2024-09-20 13:35:40,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 13:35:40,138 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-20 13:35:40,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:35:40,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-20 13:35:40,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-20 13:35:40,139 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-20 13:35:40,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:35:40,158 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2024-09-20 13:35:40,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-20 13:35:40,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2024-09-20 13:35:40,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:35:40,160 INFO L225 Difference]: With dead ends: 29 [2024-09-20 13:35:40,161 INFO L226 Difference]: Without dead ends: 29 [2024-09-20 13:35:40,161 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-20 13:35:40,162 INFO L434 NwaCegarLoop]: 25 mSDtfsCounter, 1 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-20 13:35:40,164 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 47 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-20 13:35:40,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-09-20 13:35:40,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-09-20 13:35:40,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.263157894736842) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-20 13:35:40,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2024-09-20 13:35:40,174 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 29 [2024-09-20 13:35:40,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:35:40,174 INFO L474 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2024-09-20 13:35:40,174 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-09-20 13:35:40,175 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2024-09-20 13:35:40,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-09-20 13:35:40,176 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:35:40,176 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:35:40,177 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-20 13:35:40,177 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 2 more)] === [2024-09-20 13:35:40,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:35:40,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1199378437, now seen corresponding path program 1 times [2024-09-20 13:35:40,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:35:40,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133720154] [2024-09-20 13:35:40,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:35:40,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:35:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:40,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-09-20 13:35:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:40,401 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-20 13:35:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:40,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-09-20 13:35:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:40,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-09-20 13:35:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:40,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-09-20 13:35:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:40,434 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-20 13:35:40,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:35:40,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133720154] [2024-09-20 13:35:40,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133720154] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 13:35:40,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 13:35:40,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-20 13:35:40,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047615742] [2024-09-20 13:35:40,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 13:35:40,436 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-20 13:35:40,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:35:40,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-20 13:35:40,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-20 13:35:40,437 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-20 13:35:40,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:35:40,499 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2024-09-20 13:35:40,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-20 13:35:40,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 32 [2024-09-20 13:35:40,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:35:40,501 INFO L225 Difference]: With dead ends: 29 [2024-09-20 13:35:40,501 INFO L226 Difference]: Without dead ends: 28 [2024-09-20 13:35:40,501 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-20 13:35:40,502 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 1 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-20 13:35:40,502 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 50 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-20 13:35:40,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-09-20 13:35:40,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2024-09-20 13:35:40,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-20 13:35:40,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2024-09-20 13:35:40,506 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 32 [2024-09-20 13:35:40,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:35:40,507 INFO L474 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2024-09-20 13:35:40,507 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-20 13:35:40,507 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2024-09-20 13:35:40,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-09-20 13:35:40,508 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:35:40,508 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:35:40,509 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-20 13:35:40,509 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 2 more)] === [2024-09-20 13:35:40,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:35:40,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1473975801, now seen corresponding path program 1 times [2024-09-20 13:35:40,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:35:40,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415513774] [2024-09-20 13:35:40,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:35:40,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:35:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-20 13:35:40,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [83730297] [2024-09-20 13:35:40,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:35:40,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 13:35:40,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:35:40,528 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) [2024-09-20 13:35:40,530 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-20 13:35:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:35:40,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-20 13:35:40,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 13:35:40,779 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-20 13:35:40,779 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 13:35:40,836 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-20 13:35:40,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:35:40,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415513774] [2024-09-20 13:35:40,836 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-20 13:35:40,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83730297] [2024-09-20 13:35:40,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83730297] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-20 13:35:40,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-20 13:35:40,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-09-20 13:35:40,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504808433] [2024-09-20 13:35:40,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 13:35:40,838 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-20 13:35:40,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:35:40,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-20 13:35:40,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-20 13:35:40,839 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-20 13:35:40,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:35:40,877 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2024-09-20 13:35:40,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-20 13:35:40,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2024-09-20 13:35:40,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:35:40,879 INFO L225 Difference]: With dead ends: 25 [2024-09-20 13:35:40,879 INFO L226 Difference]: Without dead ends: 0 [2024-09-20 13:35:40,879 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-09-20 13:35:40,880 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-20 13:35:40,880 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-20 13:35:40,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-20 13:35:40,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-20 13:35:40,881 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) [2024-09-20 13:35:40,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-20 13:35:40,881 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2024-09-20 13:35:40,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:35:40,882 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-20 13:35:40,882 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-20 13:35:40,882 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-20 13:35:40,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-20 13:35:40,885 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-09-20 13:35:40,886 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION (3 of 5 remaining) [2024-09-20 13:35:40,886 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (2 of 5 remaining) [2024-09-20 13:35:40,887 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-09-20 13:35:40,887 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION (0 of 5 remaining) [2024-09-20 13:35:40,903 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-20 13:35:41,087 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-20 13:35:41,090 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-09-20 13:35:41,092 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-20 13:35:41,093 INFO L469 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-09-20 13:35:41,094 INFO L470 ceAbstractionStarter]: WitnessConsidered=1 [2024-09-20 13:35:41,094 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:35:41 BoogieIcfgContainer [2024-09-20 13:35:41,094 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-20 13:35:41,095 INFO L158 Benchmark]: Toolchain (without parser) took 4419.76ms. Allocated memory was 172.0MB in the beginning and 230.7MB in the end (delta: 58.7MB). Free memory was 115.7MB in the beginning and 92.0MB in the end (delta: 23.7MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. [2024-09-20 13:35:41,095 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 172.0MB. Free memory is still 135.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:35:41,095 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 172.0MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:35:41,095 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.18ms. Allocated memory is still 172.0MB. Free memory was 115.7MB in the beginning and 101.9MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:35:41,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.79ms. Allocated memory is still 172.0MB. Free memory was 101.9MB in the beginning and 100.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:35:41,096 INFO L158 Benchmark]: Boogie Preprocessor took 27.47ms. Allocated memory is still 172.0MB. Free memory was 100.5MB in the beginning and 98.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:35:41,096 INFO L158 Benchmark]: RCFGBuilder took 314.47ms. Allocated memory is still 172.0MB. Free memory was 98.9MB in the beginning and 85.2MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:35:41,096 INFO L158 Benchmark]: TraceAbstraction took 3751.53ms. Allocated memory was 172.0MB in the beginning and 230.7MB in the end (delta: 58.7MB). Free memory was 84.7MB in the beginning and 92.0MB in the end (delta: -7.3MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-09-20 13:35:41,098 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 172.0MB. Free memory is still 135.1MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 172.0MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.18ms. Allocated memory is still 172.0MB. Free memory was 115.7MB in the beginning and 101.9MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.79ms. Allocated memory is still 172.0MB. Free memory was 101.9MB in the beginning and 100.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.47ms. Allocated memory is still 172.0MB. Free memory was 100.5MB in the beginning and 98.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 314.47ms. Allocated memory is still 172.0MB. Free memory was 98.9MB in the beginning and 85.2MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3751.53ms. Allocated memory was 172.0MB in the beginning and 230.7MB in the end (delta: 58.7MB). Free memory was 84.7MB in the beginning and 92.0MB in the end (delta: -7.3MB). Peak memory consumption was 52.4MB. 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: 11]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 11]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 14]: 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: 11]: procedure postcondition always holds For all program executions holds that procedure postcondition always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 261 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 116 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 65 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 145 mSDtfsCounter, 65 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 136 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=2, InterpolantAutomatonStates: 18, 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, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 694 SizeOfPredicates, 0 NumberOfNonLiveVariables, 155 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 169/170 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-20 13:35:41,115 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...