This is Ultimate 0.2.4-dev-1d5fa63-m
[2024-09-13 10:13:34,754 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-09-13 10:13:34,818 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-13 10:13:34,825 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-09-13 10:13:34,826 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-13 10:13:34,854 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-13 10:13:34,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-13 10:13:34,855 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-13 10:13:34,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-13 10:13:34,856 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-09-13 10:13:34,856 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-13 10:13:34,856 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-13 10:13:34,858 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-13 10:13:34,858 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-09-13 10:13:34,860 INFO L153 SettingsManager]: * Use SBE=true
[2024-09-13 10:13:34,861 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-13 10:13:34,861 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-09-13 10:13:34,861 INFO L153 SettingsManager]: * sizeof long=4
[2024-09-13 10:13:34,862 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-09-13 10:13:34,862 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-09-13 10:13:34,862 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-09-13 10:13:34,866 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-09-13 10:13:34,867 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-13 10:13:34,868 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-09-13 10:13:34,868 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-09-13 10:13:34,868 INFO L153 SettingsManager]: * sizeof long double=12
[2024-09-13 10:13:34,868 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-09-13 10:13:34,869 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-09-13 10:13:34,869 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-13 10:13:34,869 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-09-13 10:13:34,869 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-09-13 10:13:34,870 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-09-13 10:13:34,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-13 10:13:34,871 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-13 10:13:34,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-09-13 10:13:34,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-13 10:13:34,872 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-09-13 10:13:34,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-13 10:13:34,873 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-13 10:13:34,873 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-13 10:13:34,873 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-09-13 10:13:34,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-13 10:13:34,874 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/automizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None
[2024-09-13 10:13:35,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-13 10:13:35,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-13 10:13:35,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-13 10:13:35,180 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-09-13 10:13:35,180 INFO L274 PluginConnector]: CDTParser initialized
[2024-09-13 10:13:35,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loops-crafted-1/loopv2.c
[2024-09-13 10:13:36,689 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-09-13 10:13:36,869 INFO L384 CDTParser]: Found 1 translation units.
[2024-09-13 10:13:36,870 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/loopv2.c
[2024-09-13 10:13:36,876 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/7373eb789/c3b5932982f0460e853b493b7992dd96/FLAG272f8b9ea
[2024-09-13 10:13:36,889 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/7373eb789/c3b5932982f0460e853b493b7992dd96
[2024-09-13 10:13:36,893 INFO L270 PluginConnector]: Initializing Witness Parser...
[2024-09-13 10:13:36,893 INFO L274 PluginConnector]: Witness Parser initialized
[2024-09-13 10:13:36,895 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/loopv2.yml/witness-2.1.yml
[2024-09-13 10:13:36,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-13 10:13:36,938 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2024-09-13 10:13:36,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-13 10:13:36,939 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-13 10:13:36,944 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-13 10:13:36,945 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:13:36" (1/2) ...
[2024-09-13 10:13:36,946 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7a207d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:13:36, skipping insertion in model container
[2024-09-13 10:13:36,946 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:13:36" (1/2) ...
[2024-09-13 10:13:36,948 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3b7cc222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:13:36, skipping insertion in model container
[2024-09-13 10:13:36,948 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:13:36" (2/2) ...
[2024-09-13 10:13:36,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7a207d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:13:36, skipping insertion in model container
[2024-09-13 10:13:36,950 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:13:36" (2/2) ...
[2024-09-13 10:13:36,958 INFO L93 nessWitnessExtractor]: Found the following entries in the witness:
[2024-09-13 10:13:36,959 INFO L1541 ArrayList]: Loop invariant at [L22-L26] (0 == (i % 2))
[2024-09-13 10:13:36,959 INFO L1541 ArrayList]: Loop invariant at [L28-L31] ((k % 2) == 0)
[2024-09-13 10:13:36,959 INFO L1541 ArrayList]: Function contract at [L10]: requires (1 <= \old(cond)), ensures (1 <= \old(cond))
[2024-09-13 10:13:36,974 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-09-13 10:13:37,132 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/loopv2.c[454,467]
[2024-09-13 10:13:37,145 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-13 10:13:37,155 INFO L200 MainTranslator]: Completed pre-run
Start Parsing Global
Start Parsing Global
[2024-09-13 10:13:37,189 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/loopv2.c[454,467]
Start Parsing Local
Start Parsing Local
[2024-09-13 10:13:37,197 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-13 10:13:37,221 INFO L204 MainTranslator]: Completed translation
[2024-09-13 10:13:37,222 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:13:37 WrapperNode
[2024-09-13 10:13:37,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-13 10:13:37,223 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-13 10:13:37,223 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-13 10:13:37,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-13 10:13:37,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:13:37" (1/1) ...
[2024-09-13 10:13:37,237 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:13:37" (1/1) ...
[2024-09-13 10:13:37,255 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45
[2024-09-13 10:13:37,256 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-13 10:13:37,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-13 10:13:37,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-13 10:13:37,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-09-13 10:13:37,267 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:13:37" (1/1) ...
[2024-09-13 10:13:37,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:13:37" (1/1) ...
[2024-09-13 10:13:37,269 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:13:37" (1/1) ...
[2024-09-13 10:13:37,290 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-09-13 10:13:37,290 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:13:37" (1/1) ...
[2024-09-13 10:13:37,290 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:13:37" (1/1) ...
[2024-09-13 10:13:37,293 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:13:37" (1/1) ...
[2024-09-13 10:13:37,298 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:13:37" (1/1) ...
[2024-09-13 10:13:37,299 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:13:37" (1/1) ...
[2024-09-13 10:13:37,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:13:37" (1/1) ...
[2024-09-13 10:13:37,302 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-13 10:13:37,303 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-13 10:13:37,303 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-09-13 10:13:37,304 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-09-13 10:13:37,305 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:13:37" (1/1) ...
[2024-09-13 10:13:37,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-13 10:13:37,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 10:13:37,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-09-13 10:13:37,342 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-09-13 10:13:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-13 10:13:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-09-13 10:13:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-13 10:13:37,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-13 10:13:37,462 INFO L242 CfgBuilder]: Building ICFG
[2024-09-13 10:13:37,463 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-13 10:13:37,591 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live.
[2024-09-13 10:13:37,592 INFO L291 CfgBuilder]: Performing block encoding
[2024-09-13 10:13:37,613 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-13 10:13:37,613 INFO L318 CfgBuilder]: Removed 2 assume(true) statements.
[2024-09-13 10:13:37,614 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:13:37 BoogieIcfgContainer
[2024-09-13 10:13:37,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-13 10:13:37,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-13 10:13:37,616 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-09-13 10:13:37,621 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-09-13 10:13:37,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 10:13:36" (1/4) ...
[2024-09-13 10:13:37,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66add2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 10:13:37, skipping insertion in model container
[2024-09-13 10:13:37,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:13:36" (2/4) ...
[2024-09-13 10:13:37,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66add2b7 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 10:13:37, skipping insertion in model container
[2024-09-13 10:13:37,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:13:37" (3/4) ...
[2024-09-13 10:13:37,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66add2b7 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 10:13:37, skipping insertion in model container
[2024-09-13 10:13:37,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:13:37" (4/4) ...
[2024-09-13 10:13:37,627 INFO L112 eAbstractionObserver]: Analyzing ICFG loopv2.c
[2024-09-13 10:13:37,645 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-13 10:13:37,646 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations.
[2024-09-13 10:13:37,695 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-13 10:13:37,704 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;@5504d113, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-13 10:13:37,704 INFO L337 AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2024-09-13 10:13:37,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:37,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-09-13 10:13:37,714 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:13:37,715 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-09-13 10:13:37,716 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONPRE_CONDITION (and 2 more)] ===
[2024-09-13 10:13:37,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:13:37,721 INFO L85 PathProgramCache]: Analyzing trace with hash 82872, now seen corresponding path program 1 times
[2024-09-13 10:13:37,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:13:37,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304509994]
[2024-09-13 10:13:37,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:13:37,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:13:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:13:38,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 10:13:38,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:13:38,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304509994]
[2024-09-13 10:13:38,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304509994] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-13 10:13:38,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-13 10:13:38,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-13 10:13:38,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460645886]
[2024-09-13 10:13:38,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 10:13:38,070 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-13 10:13:38,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:13:38,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-13 10:13:38,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 10:13:38,103 INFO L87 Difference]: Start difference. First operand has 19 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:38,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:13:38,150 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions.
[2024-09-13 10:13:38,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-13 10:13:38,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3
[2024-09-13 10:13:38,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:13:38,160 INFO L225 Difference]: With dead ends: 22
[2024-09-13 10:13:38,160 INFO L226 Difference]: Without dead ends: 20
[2024-09-13 10:13:38,162 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 10:13:38,166 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 2 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 10:13:38,167 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 28 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 10:13:38,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2024-09-13 10:13:38,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18.
[2024-09-13 10:13:38,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:38,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions.
[2024-09-13 10:13:38,193 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 3
[2024-09-13 10:13:38,194 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:13:38,194 INFO L474 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions.
[2024-09-13 10:13:38,195 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:38,195 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions.
[2024-09-13 10:13:38,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-09-13 10:13:38,195 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:13:38,196 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-09-13 10:13:38,196 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-13 10:13:38,197 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONPRE_CONDITION (and 2 more)] ===
[2024-09-13 10:13:38,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:13:38,198 INFO L85 PathProgramCache]: Analyzing trace with hash 79641520, now seen corresponding path program 1 times
[2024-09-13 10:13:38,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:13:38,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559862567]
[2024-09-13 10:13:38,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:13:38,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:13:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:13:38,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 10:13:38,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:13:38,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559862567]
[2024-09-13 10:13:38,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559862567] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-13 10:13:38,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422440319]
[2024-09-13 10:13:38,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:13:38,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 10:13:38,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 10:13:38,470 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-13 10:13:38,472 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-09-13 10:13:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:13:38,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-09-13 10:13:38,531 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-13 10:13:38,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 10:13:38,564 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-13 10:13:38,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-09-13 10:13:38,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422440319] provided 1 perfect and 1 imperfect interpolant sequences
[2024-09-13 10:13:38,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-09-13 10:13:38,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3, 3] total 4
[2024-09-13 10:13:38,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822901712]
[2024-09-13 10:13:38,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 10:13:38,597 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-13 10:13:38,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:13:38,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-13 10:13:38,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-13 10:13:38,599 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:38,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:13:38,614 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions.
[2024-09-13 10:13:38,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-13 10:13:38,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5
[2024-09-13 10:13:38,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:13:38,615 INFO L225 Difference]: With dead ends: 17
[2024-09-13 10:13:38,615 INFO L226 Difference]: Without dead ends: 17
[2024-09-13 10:13:38,616 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-13 10:13:38,617 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 1 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 10:13:38,617 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 23 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 10:13:38,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2024-09-13 10:13:38,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16.
[2024-09-13 10:13:38,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:38,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions.
[2024-09-13 10:13:38,623 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 5
[2024-09-13 10:13:38,624 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:13:38,624 INFO L474 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions.
[2024-09-13 10:13:38,624 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:38,625 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions.
[2024-09-13 10:13:38,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-09-13 10:13:38,625 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:13:38,625 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-09-13 10:13:38,643 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-09-13 10:13:38,826 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
[2024-09-13 10:13:38,827 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONPRE_CONDITION (and 2 more)] ===
[2024-09-13 10:13:38,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:13:38,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1826081671, now seen corresponding path program 1 times
[2024-09-13 10:13:38,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:13:38,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42505692]
[2024-09-13 10:13:38,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:13:38,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:13:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:13:38,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 10:13:38,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:13:38,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42505692]
[2024-09-13 10:13:38,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42505692] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-13 10:13:38,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-13 10:13:38,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-13 10:13:38,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784694229]
[2024-09-13 10:13:38,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 10:13:38,942 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-09-13 10:13:38,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:13:38,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-09-13 10:13:38,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-09-13 10:13:38,943 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:38,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:13:38,983 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions.
[2024-09-13 10:13:38,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-09-13 10:13:38,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2024-09-13 10:13:38,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:13:38,984 INFO L225 Difference]: With dead ends: 22
[2024-09-13 10:13:38,985 INFO L226 Difference]: Without dead ends: 22
[2024-09-13 10:13:38,985 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-09-13 10:13:38,986 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 10:13:38,986 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 25 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 10:13:38,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2024-09-13 10:13:38,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20.
[2024-09-13 10:13:38,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:38,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions.
[2024-09-13 10:13:38,991 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 6
[2024-09-13 10:13:38,991 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:13:38,991 INFO L474 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions.
[2024-09-13 10:13:38,991 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:38,991 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions.
[2024-09-13 10:13:38,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-09-13 10:13:38,992 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:13:38,992 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 10:13:38,992 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-09-13 10:13:38,992 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONPRE_CONDITION (and 2 more)] ===
[2024-09-13 10:13:38,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:13:38,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1777140241, now seen corresponding path program 1 times
[2024-09-13 10:13:38,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:13:38,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688855078]
[2024-09-13 10:13:38,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:13:38,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:13:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:13:39,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 10:13:39,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:13:39,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688855078]
[2024-09-13 10:13:39,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688855078] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-13 10:13:39,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061033487]
[2024-09-13 10:13:39,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:13:39,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 10:13:39,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 10:13:39,158 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-13 10:13:39,164 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-09-13 10:13:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:13:39,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-09-13 10:13:39,203 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-13 10:13:39,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 10:13:39,275 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-13 10:13:39,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 10:13:39,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061033487] provided 1 perfect and 1 imperfect interpolant sequences
[2024-09-13 10:13:39,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-09-13 10:13:39,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 5] total 9
[2024-09-13 10:13:39,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811650244]
[2024-09-13 10:13:39,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 10:13:39,372 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-13 10:13:39,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:13:39,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-13 10:13:39,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90
[2024-09-13 10:13:39,374 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:39,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:13:39,402 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions.
[2024-09-13 10:13:39,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-13 10:13:39,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2024-09-13 10:13:39,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:13:39,404 INFO L225 Difference]: With dead ends: 21
[2024-09-13 10:13:39,404 INFO L226 Difference]: Without dead ends: 21
[2024-09-13 10:13:39,404 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90
[2024-09-13 10:13:39,405 INFO L434 NwaCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 10:13:39,405 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 29 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 10:13:39,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2024-09-13 10:13:39,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20.
[2024-09-13 10:13:39,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:39,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions.
[2024-09-13 10:13:39,408 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 8
[2024-09-13 10:13:39,408 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:13:39,408 INFO L474 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions.
[2024-09-13 10:13:39,408 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:39,409 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions.
[2024-09-13 10:13:39,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-09-13 10:13:39,409 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:13:39,409 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1]
[2024-09-13 10:13:39,427 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-09-13 10:13:39,610 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 10:13:39,610 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONPRE_CONDITION (and 2 more)] ===
[2024-09-13 10:13:39,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:13:39,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1778620801, now seen corresponding path program 1 times
[2024-09-13 10:13:39,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:13:39,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968767687]
[2024-09-13 10:13:39,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:13:39,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:13:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:13:39,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 10:13:39,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:13:39,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968767687]
[2024-09-13 10:13:39,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968767687] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-13 10:13:39,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271395161]
[2024-09-13 10:13:39,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:13:39,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 10:13:39,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 10:13:39,740 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)
[2024-09-13 10:13:39,742 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-09-13 10:13:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:13:39,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-09-13 10:13:39,782 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-13 10:13:39,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 10:13:39,806 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-13 10:13:39,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 10:13:39,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271395161] provided 1 perfect and 1 imperfect interpolant sequences
[2024-09-13 10:13:39,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-09-13 10:13:39,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4] total 8
[2024-09-13 10:13:39,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002870533]
[2024-09-13 10:13:39,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 10:13:39,879 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-09-13 10:13:39,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:13:39,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-09-13 10:13:39,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72
[2024-09-13 10:13:39,881 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:39,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:13:39,910 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions.
[2024-09-13 10:13:39,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-09-13 10:13:39,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2024-09-13 10:13:39,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:13:39,911 INFO L225 Difference]: With dead ends: 19
[2024-09-13 10:13:39,911 INFO L226 Difference]: Without dead ends: 19
[2024-09-13 10:13:39,912 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72
[2024-09-13 10:13:39,913 INFO L434 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 10:13:39,913 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 22 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 10:13:39,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2024-09-13 10:13:39,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15.
[2024-09-13 10:13:39,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:39,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions.
[2024-09-13 10:13:39,915 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 8
[2024-09-13 10:13:39,915 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:13:39,915 INFO L474 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions.
[2024-09-13 10:13:39,916 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:39,916 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions.
[2024-09-13 10:13:39,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-09-13 10:13:39,916 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:13:39,917 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 10:13:39,936 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-09-13 10:13:40,120 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 10:13:40,121 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONPRE_CONDITION (and 2 more)] ===
[2024-09-13 10:13:40,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:13:40,121 INFO L85 PathProgramCache]: Analyzing trace with hash -743228858, now seen corresponding path program 1 times
[2024-09-13 10:13:40,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:13:40,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562622817]
[2024-09-13 10:13:40,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:13:40,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:13:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:13:40,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 10:13:40,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:13:40,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562622817]
[2024-09-13 10:13:40,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562622817] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-13 10:13:40,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-13 10:13:40,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-13 10:13:40,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920040939]
[2024-09-13 10:13:40,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 10:13:40,172 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-09-13 10:13:40,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:13:40,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-09-13 10:13:40,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-09-13 10:13:40,173 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:40,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:13:40,195 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions.
[2024-09-13 10:13:40,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-09-13 10:13:40,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2024-09-13 10:13:40,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:13:40,197 INFO L225 Difference]: With dead ends: 14
[2024-09-13 10:13:40,197 INFO L226 Difference]: Without dead ends: 13
[2024-09-13 10:13:40,197 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-09-13 10:13:40,198 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 10:13:40,198 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 24 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 10:13:40,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2024-09-13 10:13:40,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12.
[2024-09-13 10:13:40,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:40,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions.
[2024-09-13 10:13:40,203 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9
[2024-09-13 10:13:40,203 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:13:40,204 INFO L474 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions.
[2024-09-13 10:13:40,204 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:40,204 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions.
[2024-09-13 10:13:40,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-09-13 10:13:40,204 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 10:13:40,205 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 10:13:40,205 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-09-13 10:13:40,205 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONPRE_CONDITION (and 2 more)] ===
[2024-09-13 10:13:40,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 10:13:40,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1278359095, now seen corresponding path program 1 times
[2024-09-13 10:13:40,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 10:13:40,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991852670]
[2024-09-13 10:13:40,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 10:13:40,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 10:13:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 10:13:40,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 10:13:40,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 10:13:40,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991852670]
[2024-09-13 10:13:40,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991852670] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-13 10:13:40,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-13 10:13:40,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-13 10:13:40,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128374321]
[2024-09-13 10:13:40,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 10:13:40,243 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-13 10:13:40,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 10:13:40,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-13 10:13:40,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 10:13:40,243 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:40,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 10:13:40,247 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions.
[2024-09-13 10:13:40,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-13 10:13:40,248 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2024-09-13 10:13:40,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 10:13:40,248 INFO L225 Difference]: With dead ends: 10
[2024-09-13 10:13:40,248 INFO L226 Difference]: Without dead ends: 0
[2024-09-13 10:13:40,248 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 10:13:40,249 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 10:13:40,249 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 10:13:40,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-09-13 10:13:40,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-09-13 10:13:40,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:40,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-09-13 10:13:40,253 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11
[2024-09-13 10:13:40,253 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 10:13:40,254 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-09-13 10:13:40,254 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 10:13:40,254 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-09-13 10:13:40,254 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-09-13 10:13:40,257 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining)
[2024-09-13 10:13:40,257 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining)
[2024-09-13 10:13:40,257 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONPRE_CONDITION (2 of 5 remaining)
[2024-09-13 10:13:40,257 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining)
[2024-09-13 10:13:40,258 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONPOST_CONDITION (0 of 5 remaining)
[2024-09-13 10:13:40,258 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-09-13 10:13:40,261 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1]
[2024-09-13 10:13:40,262 INFO L165 ceAbstractionStarter]: Computing trace abstraction results
[2024-09-13 10:13:40,265 INFO L469 ceAbstractionStarter]: Automizer considered 2 witness invariants
[2024-09-13 10:13:40,265 INFO L470 ceAbstractionStarter]: WitnessConsidered=2
[2024-09-13 10:13:40,266 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.09 10:13:40 BoogieIcfgContainer
[2024-09-13 10:13:40,266 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-13 10:13:40,267 INFO L158 Benchmark]: Toolchain (without parser) took 3329.31ms. Allocated memory is still 188.7MB. Free memory was 119.7MB in the beginning and 79.8MB in the end (delta: 39.9MB). Peak memory consumption was 42.0MB. Max. memory is 16.1GB.
[2024-09-13 10:13:40,267 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 113.2MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-13 10:13:40,267 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 188.7MB. Free memory is still 121.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-13 10:13:40,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.50ms. Allocated memory is still 188.7MB. Free memory was 119.5MB in the beginning and 106.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-09-13 10:13:40,268 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.33ms. Allocated memory is still 188.7MB. Free memory was 106.2MB in the beginning and 104.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-13 10:13:40,268 INFO L158 Benchmark]: Boogie Preprocessor took 44.90ms. Allocated memory is still 188.7MB. Free memory was 104.6MB in the beginning and 103.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-13 10:13:40,268 INFO L158 Benchmark]: RCFGBuilder took 311.52ms. Allocated memory is still 188.7MB. Free memory was 102.9MB in the beginning and 150.9MB in the end (delta: -48.0MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB.
[2024-09-13 10:13:40,269 INFO L158 Benchmark]: TraceAbstraction took 2650.38ms. Allocated memory is still 188.7MB. Free memory was 150.1MB in the beginning and 79.8MB in the end (delta: 70.4MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB.
[2024-09-13 10:13:40,270 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.57ms. Allocated memory is still 113.2MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB.
* Witness Parser took 0.19ms. Allocated memory is still 188.7MB. Free memory is still 121.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 283.50ms. Allocated memory is still 188.7MB. Free memory was 119.5MB in the beginning and 106.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 33.33ms. Allocated memory is still 188.7MB. Free memory was 106.2MB in the beginning and 104.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 44.90ms. Allocated memory is still 188.7MB. Free memory was 104.6MB in the beginning and 103.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 311.52ms. Allocated memory is still 188.7MB. Free memory was 102.9MB in the beginning and 150.9MB in the end (delta: -48.0MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 2650.38ms. Allocated memory is still 188.7MB. Free memory was 150.1MB in the beginning and 79.8MB in the end (delta: 70.4MB). Peak memory consumption was 71.2MB. 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: 22]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness holds at this location
- PositiveResult [Line: 28]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness holds at this location
- PositiveResult [Line: 10]: procedure precondition always holds
For all program executions holds that procedure precondition always holds at this location
- PositiveResult [Line: 12]: 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: 10]: procedure postcondition always holds
For all program executions holds that procedure postcondition always holds at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 19 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 170 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 98 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 107 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 72 mSDtfsCounter, 107 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 31 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=3, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 11 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 300 SizeOfPredicates, 0 NumberOfNonLiveVariables, 125 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 4/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
5 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-09-13 10:13:40,300 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...