This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m
[2024-09-20 13:32:15,910 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-09-20 13:32:15,987 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-20 13:32:15,992 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-09-20 13:32:15,993 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-20 13:32:16,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-20 13:32:16,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-20 13:32:16,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-20 13:32:16,023 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-20 13:32:16,023 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-09-20 13:32:16,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-20 13:32:16,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-20 13:32:16,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-20 13:32:16,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-09-20 13:32:16,025 INFO L153 SettingsManager]: * Use SBE=true
[2024-09-20 13:32:16,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-20 13:32:16,026 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-09-20 13:32:16,026 INFO L153 SettingsManager]: * sizeof long=4
[2024-09-20 13:32:16,026 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-09-20 13:32:16,026 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-09-20 13:32:16,027 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-09-20 13:32:16,030 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-09-20 13:32:16,030 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-20 13:32:16,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-09-20 13:32:16,031 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-09-20 13:32:16,031 INFO L153 SettingsManager]: * sizeof long double=12
[2024-09-20 13:32:16,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-09-20 13:32:16,032 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-09-20 13:32:16,032 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-20 13:32:16,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-09-20 13:32:16,032 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-09-20 13:32:16,033 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-09-20 13:32:16,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-20 13:32:16,035 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-20 13:32:16,036 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-09-20 13:32:16,036 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-20 13:32:16,036 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-09-20 13:32:16,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-20 13:32:16,036 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-20 13:32:16,037 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-20 13:32:16,037 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-09-20 13:32:16,038 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-20 13:32:16,038 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None
[2024-09-20 13:32:16,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-20 13:32:16,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-20 13:32:16,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-20 13:32:16,299 INFO L270 PluginConnector]: Initializing Witness Parser...
[2024-09-20 13:32:16,300 INFO L274 PluginConnector]: Witness Parser initialized
[2024-09-20 13:32:16,301 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/nested_3.yml/witness-2.1.yml
[2024-09-20 13:32:16,359 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-09-20 13:32:16,359 INFO L274 PluginConnector]: CDTParser initialized
[2024-09-20 13:32:16,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-simple/nested_3.c
[2024-09-20 13:32:17,711 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-09-20 13:32:17,876 INFO L384 CDTParser]: Found 1 translation units.
[2024-09-20 13:32:17,876 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-simple/nested_3.c
[2024-09-20 13:32:17,882 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/cb7398460/928fd0d353a54507b997577c02ba9610/FLAG1afd62845
[2024-09-20 13:32:17,898 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/cb7398460/928fd0d353a54507b997577c02ba9610
[2024-09-20 13:32:17,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-20 13:32:17,900 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2024-09-20 13:32:17,902 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-20 13:32:17,903 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-20 13:32:17,908 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-20 13:32:17,909 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 01:32:16" (1/2) ...
[2024-09-20 13:32:17,909 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8938b7 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:32:17, skipping insertion in model container
[2024-09-20 13:32:17,910 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 01:32:16" (1/2) ...
[2024-09-20 13:32:17,912 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6c6046a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:32:17, skipping insertion in model container
[2024-09-20 13:32:17,912 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:32:17" (2/2) ...
[2024-09-20 13:32:17,912 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8938b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:17, skipping insertion in model container
[2024-09-20 13:32:17,913 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:32:17" (2/2) ...
[2024-09-20 13:32:17,921 INFO L93 nessWitnessExtractor]: Found the following entries in the witness:
[2024-09-20 13:32:17,921 INFO L1541 ArrayList]: Loop invariant at [L21-L27] (((b == 6) && (c == 6)) && (a <= 6))
[2024-09-20 13:32:17,922 INFO L1541 ArrayList]: Loop invariant at [L22-L26] (((c == 6) && (b <= 6)) && (a <= 5))
[2024-09-20 13:32:17,922 INFO L1541 ArrayList]: Loop invariant at [L23-L25] (((((((((b <= 5) && (a <= 5)) && (c == 1)) || (((b <= 5) && (5 == c)) && (a <= 5))) || (((c == 6) && (b <= 5)) && (a <= 5))) || (((b <= 5) && (a <= 5)) && (c == 3))) || (((b <= 5) && (c == 0)) && (a <= 5))) || (((b <= 5) && (c == 2)) && (a <= 5))) || (((b <= 5) && (c == 4)) && (a <= 5)))
[2024-09-20 13:32:17,938 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-09-20 13:32:18,117 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/loop-simple/nested_3.c[784,797]
[2024-09-20 13:32:18,127 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-20 13:32:18,134 INFO L200 MainTranslator]: Completed pre-run
Start Parsing Local
Start Parsing Local
Start Parsing Local
[2024-09-20 13:32:18,174 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/loop-simple/nested_3.c[784,797]
[2024-09-20 13:32:18,175 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-20 13:32:18,193 INFO L204 MainTranslator]: Completed translation
[2024-09-20 13:32:18,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:18 WrapperNode
[2024-09-20 13:32:18,194 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-20 13:32:18,195 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-20 13:32:18,195 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-20 13:32:18,196 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-20 13:32:18,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:18" (1/1) ...
[2024-09-20 13:32:18,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:18" (1/1) ...
[2024-09-20 13:32:18,223 INFO L138 Inliner]: procedures = 10, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40
[2024-09-20 13:32:18,224 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-20 13:32:18,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-20 13:32:18,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-20 13:32:18,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-09-20 13:32:18,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:18" (1/1) ...
[2024-09-20 13:32:18,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:18" (1/1) ...
[2024-09-20 13:32:18,240 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:18" (1/1) ...
[2024-09-20 13:32:18,260 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].
[2024-09-20 13:32:18,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:18" (1/1) ...
[2024-09-20 13:32:18,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:18" (1/1) ...
[2024-09-20 13:32:18,263 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:18" (1/1) ...
[2024-09-20 13:32:18,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:18" (1/1) ...
[2024-09-20 13:32:18,273 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:18" (1/1) ...
[2024-09-20 13:32:18,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:18" (1/1) ...
[2024-09-20 13:32:18,275 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-20 13:32:18,279 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-20 13:32:18,279 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-09-20 13:32:18,279 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-09-20 13:32:18,280 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:18" (1/1) ...
[2024-09-20 13:32:18,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-20 13:32:18,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:32:18,312 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 13:32:18,319 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 13:32:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-20 13:32:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-20 13:32:18,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-20 13:32:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-09-20 13:32:18,426 INFO L242 CfgBuilder]: Building ICFG
[2024-09-20 13:32:18,428 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-20 13:32:18,584 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live.
[2024-09-20 13:32:18,584 INFO L291 CfgBuilder]: Performing block encoding
[2024-09-20 13:32:18,611 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-20 13:32:18,611 INFO L318 CfgBuilder]: Removed 3 assume(true) statements.
[2024-09-20 13:32:18,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:32:18 BoogieIcfgContainer
[2024-09-20 13:32:18,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-20 13:32:18,614 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-20 13:32:18,614 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-09-20 13:32:18,617 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-09-20 13:32:18,617 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 01:32:16" (1/4) ...
[2024-09-20 13:32:18,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ac5024 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.09 01:32:18, skipping insertion in model container
[2024-09-20 13:32:18,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:32:17" (2/4) ...
[2024-09-20 13:32:18,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ac5024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:32:18, skipping insertion in model container
[2024-09-20 13:32:18,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:32:18" (3/4) ...
[2024-09-20 13:32:18,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ac5024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:32:18, skipping insertion in model container
[2024-09-20 13:32:18,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:32:18" (4/4) ...
[2024-09-20 13:32:18,621 INFO L112 eAbstractionObserver]: Analyzing ICFG nested_3.c
[2024-09-20 13:32:18,637 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-20 13:32:18,637 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2024-09-20 13:32:18,674 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-20 13:32:18,680 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;@14655589, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-20 13:32:18,680 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2024-09-20 13:32:18,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 16 states have internal predecessors, (23), 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 13:32:18,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3
[2024-09-20 13:32:18,690 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:18,690 INFO L216 NwaCegarLoop]: trace histogram [1, 1]
[2024-09-20 13:32:18,691 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] ===
[2024-09-20 13:32:18,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:18,697 INFO L85 PathProgramCache]: Analyzing trace with hash 2825, now seen corresponding path program 1 times
[2024-09-20 13:32:18,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:18,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030678399]
[2024-09-20 13:32:18,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:18,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:18,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:32:18,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:18,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030678399]
[2024-09-20 13:32:18,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030678399] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:32:18,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:32:18,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-09-20 13:32:18,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415256493]
[2024-09-20 13:32:18,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:32:18,934 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-20 13:32:18,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:18,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-20 13:32:18,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-20 13:32:18,962 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 16 states have internal predecessors, (23), 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 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 13:32:19,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:19,012 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions.
[2024-09-20 13:32:19,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-20 13:32:19,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2
[2024-09-20 13:32:19,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:19,021 INFO L225 Difference]: With dead ends: 19
[2024-09-20 13:32:19,021 INFO L226 Difference]: Without dead ends: 17
[2024-09-20 13:32:19,023 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 13:32:19,026 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:19,026 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 15 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 13:32:19,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2024-09-20 13:32:19,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2024-09-20 13:32:19,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 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)
[2024-09-20 13:32:19,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions.
[2024-09-20 13:32:19,050 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 2
[2024-09-20 13:32:19,050 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:19,051 INFO L474 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions.
[2024-09-20 13:32:19,051 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 13:32:19,052 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions.
[2024-09-20 13:32:19,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-09-20 13:32:19,052 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:19,053 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-09-20 13:32:19,053 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-20 13:32:19,055 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] ===
[2024-09-20 13:32:19,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:19,057 INFO L85 PathProgramCache]: Analyzing trace with hash 2716172, now seen corresponding path program 1 times
[2024-09-20 13:32:19,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:19,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107362780]
[2024-09-20 13:32:19,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:19,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:19,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:32:19,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:19,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107362780]
[2024-09-20 13:32:19,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107362780] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:32:19,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:32:19,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-20 13:32:19,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107451391]
[2024-09-20 13:32:19,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:32:19,176 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-09-20 13:32:19,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:19,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-09-20 13:32:19,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-09-20 13:32:19,179 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 13:32:19,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:19,222 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions.
[2024-09-20 13:32:19,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-09-20 13:32:19,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4
[2024-09-20 13:32:19,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:19,223 INFO L225 Difference]: With dead ends: 19
[2024-09-20 13:32:19,224 INFO L226 Difference]: Without dead ends: 19
[2024-09-20 13:32:19,224 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-09-20 13:32:19,226 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:19,227 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 14 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 13:32:19,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2024-09-20 13:32:19,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2024-09-20 13:32:19,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.4) internal successors, (21), 18 states have internal predecessors, (21), 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 13:32:19,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions.
[2024-09-20 13:32:19,232 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 4
[2024-09-20 13:32:19,232 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:19,233 INFO L474 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions.
[2024-09-20 13:32:19,233 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 13:32:19,233 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions.
[2024-09-20 13:32:19,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-09-20 13:32:19,234 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:19,234 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-09-20 13:32:19,234 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-09-20 13:32:19,235 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] ===
[2024-09-20 13:32:19,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:19,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1684724337, now seen corresponding path program 1 times
[2024-09-20 13:32:19,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:19,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540114692]
[2024-09-20 13:32:19,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:19,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:19,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:32:19,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:19,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540114692]
[2024-09-20 13:32:19,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540114692] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:32:19,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:32:19,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-20 13:32:19,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076873279]
[2024-09-20 13:32:19,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:32:19,352 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-20 13:32:19,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:19,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-20 13:32:19,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-09-20 13:32:19,353 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 5 states, 4 states have (on average 1.5) 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)
[2024-09-20 13:32:19,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:19,416 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions.
[2024-09-20 13:32:19,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-20 13:32:19,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) 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
[2024-09-20 13:32:19,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:19,417 INFO L225 Difference]: With dead ends: 30
[2024-09-20 13:32:19,418 INFO L226 Difference]: Without dead ends: 30
[2024-09-20 13:32:19,418 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-09-20 13:32:19,419 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 14 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:19,419 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 13 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:32:19,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2024-09-20 13:32:19,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 21.
[2024-09-20 13:32:19,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 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 13:32:19,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions.
[2024-09-20 13:32:19,423 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 6
[2024-09-20 13:32:19,423 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:19,423 INFO L474 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions.
[2024-09-20 13:32:19,423 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) 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)
[2024-09-20 13:32:19,423 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions.
[2024-09-20 13:32:19,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-09-20 13:32:19,424 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:19,424 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:32:19,424 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-09-20 13:32:19,424 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] ===
[2024-09-20 13:32:19,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:19,425 INFO L85 PathProgramCache]: Analyzing trace with hash 182585518, now seen corresponding path program 1 times
[2024-09-20 13:32:19,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:19,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038128279]
[2024-09-20 13:32:19,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:19,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:19,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:32:19,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:19,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038128279]
[2024-09-20 13:32:19,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038128279] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-20 13:32:19,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383663303]
[2024-09-20 13:32:19,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:19,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:32:19,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:32:19,629 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 13:32:19,632 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 13:32:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:19,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-09-20 13:32:19,677 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 13:32:19,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:32:19,754 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-20 13:32:19,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:32:19,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383663303] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-20 13:32:19,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-20 13:32:19,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 13
[2024-09-20 13:32:19,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480927255]
[2024-09-20 13:32:19,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-20 13:32:19,851 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-09-20 13:32:19,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:19,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-09-20 13:32:19,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182
[2024-09-20 13:32:19,854 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 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)
[2024-09-20 13:32:20,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:20,041 INFO L93 Difference]: Finished difference Result 54 states and 68 transitions.
[2024-09-20 13:32:20,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2024-09-20 13:32:20,042 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 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) Word has length 8
[2024-09-20 13:32:20,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:20,044 INFO L225 Difference]: With dead ends: 54
[2024-09-20 13:32:20,044 INFO L226 Difference]: Without dead ends: 54
[2024-09-20 13:32:20,045 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272
[2024-09-20 13:32:20,046 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 54 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:20,046 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 18 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:32:20,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2024-09-20 13:32:20,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52.
[2024-09-20 13:32:20,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 51 states have internal predecessors, (65), 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 13:32:20,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 65 transitions.
[2024-09-20 13:32:20,061 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 65 transitions. Word has length 8
[2024-09-20 13:32:20,061 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:20,061 INFO L474 AbstractCegarLoop]: Abstraction has 52 states and 65 transitions.
[2024-09-20 13:32:20,061 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 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)
[2024-09-20 13:32:20,062 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 65 transitions.
[2024-09-20 13:32:20,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-09-20 13:32:20,063 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:20,064 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:32:20,082 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-09-20 13:32:20,264 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:32:20,265 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] ===
[2024-09-20 13:32:20,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:20,265 INFO L85 PathProgramCache]: Analyzing trace with hash -628973555, now seen corresponding path program 2 times
[2024-09-20 13:32:20,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:20,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281073293]
[2024-09-20 13:32:20,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:20,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:20,389 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:32:20,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:20,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281073293]
[2024-09-20 13:32:20,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281073293] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-20 13:32:20,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255086456]
[2024-09-20 13:32:20,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-09-20 13:32:20,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:32:20,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:32:20,392 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 13:32:20,393 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 13:32:20,432 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-09-20 13:32:20,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-20 13:32:20,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-09-20 13:32:20,434 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 13:32:20,529 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:32:20,530 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-20 13:32:20,635 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:32:20,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255086456] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-20 13:32:20,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-20 13:32:20,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 16
[2024-09-20 13:32:20,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269285210]
[2024-09-20 13:32:20,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-20 13:32:20,636 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-09-20 13:32:20,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:20,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-09-20 13:32:20,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272
[2024-09-20 13:32:20,638 INFO L87 Difference]: Start difference. First operand 52 states and 65 transitions. Second operand has 17 states, 16 states have (on average 1.75) internal successors, (28), 17 states have internal predecessors, (28), 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 13:32:20,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:20,836 INFO L93 Difference]: Finished difference Result 62 states and 76 transitions.
[2024-09-20 13:32:20,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2024-09-20 13:32:20,837 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.75) internal successors, (28), 17 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2024-09-20 13:32:20,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:20,837 INFO L225 Difference]: With dead ends: 62
[2024-09-20 13:32:20,838 INFO L226 Difference]: Without dead ends: 62
[2024-09-20 13:32:20,839 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420
[2024-09-20 13:32:20,840 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 50 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:20,840 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 19 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:32:20,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2024-09-20 13:32:20,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60.
[2024-09-20 13:32:20,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 59 states have internal predecessors, (73), 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 13:32:20,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 73 transitions.
[2024-09-20 13:32:20,849 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 73 transitions. Word has length 10
[2024-09-20 13:32:20,849 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:20,850 INFO L474 AbstractCegarLoop]: Abstraction has 60 states and 73 transitions.
[2024-09-20 13:32:20,850 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.75) internal successors, (28), 17 states have internal predecessors, (28), 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 13:32:20,850 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 73 transitions.
[2024-09-20 13:32:20,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-09-20 13:32:20,850 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:20,850 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:32:20,865 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-09-20 13:32:21,054 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:32:21,055 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] ===
[2024-09-20 13:32:21,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:21,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1146805164, now seen corresponding path program 3 times
[2024-09-20 13:32:21,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:21,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527794605]
[2024-09-20 13:32:21,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:21,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:21,241 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:32:21,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:21,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527794605]
[2024-09-20 13:32:21,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527794605] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-20 13:32:21,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086577691]
[2024-09-20 13:32:21,242 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-09-20 13:32:21,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:32:21,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:32:21,244 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)
[2024-09-20 13:32:21,245 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-09-20 13:32:21,286 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2024-09-20 13:32:21,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-20 13:32:21,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-09-20 13:32:21,288 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 13:32:21,438 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-09-20 13:32:21,438 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-20 13:32:21,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086577691] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:32:21,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-09-20 13:32:21,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11
[2024-09-20 13:32:21,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125599296]
[2024-09-20 13:32:21,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:32:21,439 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-09-20 13:32:21,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:21,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-09-20 13:32:21,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132
[2024-09-20 13:32:21,440 INFO L87 Difference]: Start difference. First operand 60 states and 73 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:32:21,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:21,487 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions.
[2024-09-20 13:32:21,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-20 13:32:21,488 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12
[2024-09-20 13:32:21,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:21,489 INFO L225 Difference]: With dead ends: 60
[2024-09-20 13:32:21,489 INFO L226 Difference]: Without dead ends: 60
[2024-09-20 13:32:21,489 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132
[2024-09-20 13:32:21,490 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:21,490 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 15 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 13:32:21,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2024-09-20 13:32:21,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60.
[2024-09-20 13:32:21,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 59 states have internal predecessors, (71), 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 13:32:21,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions.
[2024-09-20 13:32:21,501 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 12
[2024-09-20 13:32:21,501 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:21,501 INFO L474 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions.
[2024-09-20 13:32:21,501 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:32:21,501 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions.
[2024-09-20 13:32:21,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-09-20 13:32:21,502 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:21,502 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:32:21,521 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-09-20 13:32:21,702 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-09-20 13:32:21,703 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] ===
[2024-09-20 13:32:21,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:21,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1992139143, now seen corresponding path program 1 times
[2024-09-20 13:32:21,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:21,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408336558]
[2024-09-20 13:32:21,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:21,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:21,863 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2024-09-20 13:32:21,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:21,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408336558]
[2024-09-20 13:32:21,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408336558] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-20 13:32:21,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531038530]
[2024-09-20 13:32:21,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:21,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:32:21,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:32:21,866 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-20 13:32:21,867 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-09-20 13:32:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:21,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-09-20 13:32:21,905 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 13:32:21,947 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:32:21,948 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-20 13:32:21,994 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:32:21,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531038530] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-20 13:32:21,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-20 13:32:21,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 13
[2024-09-20 13:32:21,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773243721]
[2024-09-20 13:32:21,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-20 13:32:21,995 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-09-20 13:32:21,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:21,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-09-20 13:32:21,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156
[2024-09-20 13:32:21,996 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. Second operand has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 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 13:32:22,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:22,217 INFO L93 Difference]: Finished difference Result 91 states and 110 transitions.
[2024-09-20 13:32:22,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states.
[2024-09-20 13:32:22,218 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 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 15
[2024-09-20 13:32:22,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:22,219 INFO L225 Difference]: With dead ends: 91
[2024-09-20 13:32:22,219 INFO L226 Difference]: Without dead ends: 91
[2024-09-20 13:32:22,220 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=187, Invalid=413, Unknown=0, NotChecked=0, Total=600
[2024-09-20 13:32:22,220 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 22 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:22,220 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 22 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:32:22,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states.
[2024-09-20 13:32:22,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 89.
[2024-09-20 13:32:22,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 85 states have (on average 1.2705882352941176) internal successors, (108), 88 states have internal predecessors, (108), 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 13:32:22,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 108 transitions.
[2024-09-20 13:32:22,227 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 108 transitions. Word has length 15
[2024-09-20 13:32:22,227 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:22,228 INFO L474 AbstractCegarLoop]: Abstraction has 89 states and 108 transitions.
[2024-09-20 13:32:22,228 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 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 13:32:22,228 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 108 transitions.
[2024-09-20 13:32:22,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2024-09-20 13:32:22,229 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:22,229 INFO L216 NwaCegarLoop]: trace histogram [10, 9, 2, 2, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:32:22,246 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-09-20 13:32:22,429 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:32:22,430 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] ===
[2024-09-20 13:32:22,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:22,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1039224164, now seen corresponding path program 1 times
[2024-09-20 13:32:22,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:22,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068470075]
[2024-09-20 13:32:22,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:22,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:22,580 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 49 proven. 9 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked.
[2024-09-20 13:32:22,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:22,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068470075]
[2024-09-20 13:32:22,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068470075] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-20 13:32:22,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941244899]
[2024-09-20 13:32:22,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:22,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:32:22,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:32:22,583 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-20 13:32:22,584 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-09-20 13:32:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:22,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-09-20 13:32:22,630 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 13:32:22,727 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 50 proven. 9 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked.
[2024-09-20 13:32:22,727 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-20 13:32:22,788 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 50 proven. 9 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked.
[2024-09-20 13:32:22,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941244899] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-20 13:32:22,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-20 13:32:22,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 11
[2024-09-20 13:32:22,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931005743]
[2024-09-20 13:32:22,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-20 13:32:22,790 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-09-20 13:32:22,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:22,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-09-20 13:32:22,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132
[2024-09-20 13:32:22,791 INFO L87 Difference]: Start difference. First operand 89 states and 108 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 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 13:32:22,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:22,878 INFO L93 Difference]: Finished difference Result 92 states and 107 transitions.
[2024-09-20 13:32:22,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-09-20 13:32:22,878 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 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 29
[2024-09-20 13:32:22,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:22,879 INFO L225 Difference]: With dead ends: 92
[2024-09-20 13:32:22,879 INFO L226 Difference]: Without dead ends: 92
[2024-09-20 13:32:22,879 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132
[2024-09-20 13:32:22,880 INFO L434 NwaCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:22,880 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:32:22,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2024-09-20 13:32:22,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 87.
[2024-09-20 13:32:22,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 83 states have (on average 1.2289156626506024) internal successors, (102), 86 states have internal predecessors, (102), 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 13:32:22,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 102 transitions.
[2024-09-20 13:32:22,890 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 102 transitions. Word has length 29
[2024-09-20 13:32:22,890 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:22,890 INFO L474 AbstractCegarLoop]: Abstraction has 87 states and 102 transitions.
[2024-09-20 13:32:22,890 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 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 13:32:22,891 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 102 transitions.
[2024-09-20 13:32:22,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-09-20 13:32:22,891 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:22,891 INFO L216 NwaCegarLoop]: trace histogram [11, 10, 2, 2, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:32:22,908 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-09-20 13:32:23,092 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2024-09-20 13:32:23,092 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] ===
[2024-09-20 13:32:23,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:23,093 INFO L85 PathProgramCache]: Analyzing trace with hash 2032961147, now seen corresponding path program 2 times
[2024-09-20 13:32:23,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:23,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584232497]
[2024-09-20 13:32:23,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:23,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:23,246 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 63 proven. 16 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked.
[2024-09-20 13:32:23,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:23,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584232497]
[2024-09-20 13:32:23,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584232497] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-20 13:32:23,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200868106]
[2024-09-20 13:32:23,247 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-09-20 13:32:23,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:32:23,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:32:23,249 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-20 13:32:23,250 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-09-20 13:32:23,293 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-09-20 13:32:23,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-20 13:32:23,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-09-20 13:32:23,296 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 13:32:23,394 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 64 proven. 16 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked.
[2024-09-20 13:32:23,395 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-20 13:32:23,456 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 64 proven. 16 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked.
[2024-09-20 13:32:23,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200868106] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-20 13:32:23,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-20 13:32:23,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13
[2024-09-20 13:32:23,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591982859]
[2024-09-20 13:32:23,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-20 13:32:23,458 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-09-20 13:32:23,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:23,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-09-20 13:32:23,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182
[2024-09-20 13:32:23,458 INFO L87 Difference]: Start difference. First operand 87 states and 102 transitions. Second operand has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 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 13:32:23,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:23,575 INFO L93 Difference]: Finished difference Result 87 states and 100 transitions.
[2024-09-20 13:32:23,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-09-20 13:32:23,575 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 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 31
[2024-09-20 13:32:23,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:23,576 INFO L225 Difference]: With dead ends: 87
[2024-09-20 13:32:23,576 INFO L226 Difference]: Without dead ends: 87
[2024-09-20 13:32:23,577 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182
[2024-09-20 13:32:23,577 INFO L434 NwaCegarLoop]: 7 mSDtfsCounter, 13 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:23,577 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 17 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:32:23,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states.
[2024-09-20 13:32:23,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87.
[2024-09-20 13:32:23,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 83 states have (on average 1.2048192771084338) internal successors, (100), 86 states have internal predecessors, (100), 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 13:32:23,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 100 transitions.
[2024-09-20 13:32:23,583 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 100 transitions. Word has length 31
[2024-09-20 13:32:23,583 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:23,583 INFO L474 AbstractCegarLoop]: Abstraction has 87 states and 100 transitions.
[2024-09-20 13:32:23,583 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 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 13:32:23,585 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 100 transitions.
[2024-09-20 13:32:23,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2024-09-20 13:32:23,586 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:23,586 INFO L216 NwaCegarLoop]: trace histogram [12, 11, 2, 2, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:32:23,604 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-09-20 13:32:23,791 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:32:23,792 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] ===
[2024-09-20 13:32:23,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:23,792 INFO L85 PathProgramCache]: Analyzing trace with hash -534454630, now seen corresponding path program 3 times
[2024-09-20 13:32:23,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:23,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598000891]
[2024-09-20 13:32:23,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:23,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:23,971 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 77 proven. 25 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked.
[2024-09-20 13:32:23,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:23,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598000891]
[2024-09-20 13:32:23,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598000891] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-20 13:32:23,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648801247]
[2024-09-20 13:32:23,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-09-20 13:32:23,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:32:23,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:32:23,976 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-20 13:32:23,978 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-09-20 13:32:24,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2024-09-20 13:32:24,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-20 13:32:24,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-09-20 13:32:24,019 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 13:32:24,135 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked.
[2024-09-20 13:32:24,135 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-20 13:32:24,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648801247] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:32:24,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-09-20 13:32:24,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12
[2024-09-20 13:32:24,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816779351]
[2024-09-20 13:32:24,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:32:24,136 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-09-20 13:32:24,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:24,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-09-20 13:32:24,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156
[2024-09-20 13:32:24,136 INFO L87 Difference]: Start difference. First operand 87 states and 100 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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)
[2024-09-20 13:32:24,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:24,180 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions.
[2024-09-20 13:32:24,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-09-20 13:32:24,180 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33
[2024-09-20 13:32:24,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:24,181 INFO L225 Difference]: With dead ends: 86
[2024-09-20 13:32:24,181 INFO L226 Difference]: Without dead ends: 86
[2024-09-20 13:32:24,181 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156
[2024-09-20 13:32:24,182 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:24,182 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 9 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 13:32:24,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states.
[2024-09-20 13:32:24,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86.
[2024-09-20 13:32:24,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 83 states have (on average 1.1566265060240963) internal successors, (96), 85 states have internal predecessors, (96), 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 13:32:24,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 96 transitions.
[2024-09-20 13:32:24,190 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 96 transitions. Word has length 33
[2024-09-20 13:32:24,191 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:24,191 INFO L474 AbstractCegarLoop]: Abstraction has 86 states and 96 transitions.
[2024-09-20 13:32:24,191 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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)
[2024-09-20 13:32:24,191 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions.
[2024-09-20 13:32:24,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2024-09-20 13:32:24,196 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:24,196 INFO L216 NwaCegarLoop]: trace histogram [14, 12, 2, 2, 2, 2, 1, 1, 1, 1]
[2024-09-20 13:32:24,213 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-09-20 13:32:24,400 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:32:24,401 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] ===
[2024-09-20 13:32:24,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:24,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1978806284, now seen corresponding path program 2 times
[2024-09-20 13:32:24,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:24,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060453430]
[2024-09-20 13:32:24,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:24,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:24,602 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2024-09-20 13:32:24,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:24,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060453430]
[2024-09-20 13:32:24,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060453430] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:32:24,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:32:24,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-09-20 13:32:24,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784253256]
[2024-09-20 13:32:24,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:32:24,603 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-09-20 13:32:24,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:24,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-09-20 13:32:24,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42
[2024-09-20 13:32:24,604 INFO L87 Difference]: Start difference. First operand 86 states and 96 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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)
[2024-09-20 13:32:24,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:24,632 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions.
[2024-09-20 13:32:24,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-20 13:32:24,633 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38
[2024-09-20 13:32:24,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:24,633 INFO L225 Difference]: With dead ends: 86
[2024-09-20 13:32:24,633 INFO L226 Difference]: Without dead ends: 86
[2024-09-20 13:32:24,634 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42
[2024-09-20 13:32:24,634 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:24,634 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 10 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 13:32:24,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states.
[2024-09-20 13:32:24,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86.
[2024-09-20 13:32:24,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 83 states have (on average 1.144578313253012) internal successors, (95), 85 states have internal predecessors, (95), 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 13:32:24,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 95 transitions.
[2024-09-20 13:32:24,638 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 95 transitions. Word has length 38
[2024-09-20 13:32:24,638 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:24,638 INFO L474 AbstractCegarLoop]: Abstraction has 86 states and 95 transitions.
[2024-09-20 13:32:24,638 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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)
[2024-09-20 13:32:24,638 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions.
[2024-09-20 13:32:24,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2024-09-20 13:32:24,639 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:24,639 INFO L216 NwaCegarLoop]: trace histogram [14, 12, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:32:24,639 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-09-20 13:32:24,639 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] ===
[2024-09-20 13:32:24,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:24,639 INFO L85 PathProgramCache]: Analyzing trace with hash -2103047935, now seen corresponding path program 1 times
[2024-09-20 13:32:24,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:24,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197010558]
[2024-09-20 13:32:24,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:24,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:24,742 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked.
[2024-09-20 13:32:24,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:24,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197010558]
[2024-09-20 13:32:24,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197010558] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-20 13:32:24,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119432968]
[2024-09-20 13:32:24,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:24,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:32:24,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:32:24,745 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-20 13:32:24,746 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-09-20 13:32:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:24,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-09-20 13:32:24,795 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 13:32:24,859 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 1 proven. 105 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-09-20 13:32:24,860 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-20 13:32:24,927 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 1 proven. 105 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-09-20 13:32:24,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119432968] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-20 13:32:24,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-20 13:32:24,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 12
[2024-09-20 13:32:24,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219091984]
[2024-09-20 13:32:24,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-20 13:32:24,928 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-09-20 13:32:24,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:24,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-09-20 13:32:24,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132
[2024-09-20 13:32:24,929 INFO L87 Difference]: Start difference. First operand 86 states and 95 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 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 13:32:25,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:25,117 INFO L93 Difference]: Finished difference Result 222 states and 242 transitions.
[2024-09-20 13:32:25,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states.
[2024-09-20 13:32:25,118 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 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 41
[2024-09-20 13:32:25,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:25,118 INFO L225 Difference]: With dead ends: 222
[2024-09-20 13:32:25,118 INFO L226 Difference]: Without dead ends: 222
[2024-09-20 13:32:25,119 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=175, Invalid=377, Unknown=0, NotChecked=0, Total=552
[2024-09-20 13:32:25,119 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 20 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:25,120 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 21 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:32:25,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states.
[2024-09-20 13:32:25,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222.
[2024-09-20 13:32:25,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 219 states have (on average 1.1050228310502284) internal successors, (242), 221 states have internal predecessors, (242), 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 13:32:25,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 242 transitions.
[2024-09-20 13:32:25,125 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 242 transitions. Word has length 41
[2024-09-20 13:32:25,125 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:25,125 INFO L474 AbstractCegarLoop]: Abstraction has 222 states and 242 transitions.
[2024-09-20 13:32:25,125 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 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 13:32:25,125 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 242 transitions.
[2024-09-20 13:32:25,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-09-20 13:32:25,127 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:25,127 INFO L216 NwaCegarLoop]: trace histogram [42, 36, 7, 6, 6, 6, 2, 2, 1, 1, 1, 1]
[2024-09-20 13:32:25,145 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-09-20 13:32:25,328 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:32:25,329 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] ===
[2024-09-20 13:32:25,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:25,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1734497796, now seen corresponding path program 1 times
[2024-09-20 13:32:25,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:25,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799133742]
[2024-09-20 13:32:25,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:25,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:25,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1773 trivial. 0 not checked.
[2024-09-20 13:32:25,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:25,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799133742]
[2024-09-20 13:32:25,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799133742] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:32:25,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:32:25,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-20 13:32:25,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473301232]
[2024-09-20 13:32:25,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:32:25,472 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-09-20 13:32:25,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:25,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-09-20 13:32:25,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-09-20 13:32:25,472 INFO L87 Difference]: Start difference. First operand 222 states and 242 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 13:32:25,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:25,494 INFO L93 Difference]: Finished difference Result 222 states and 241 transitions.
[2024-09-20 13:32:25,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-09-20 13:32:25,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 111
[2024-09-20 13:32:25,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:25,495 INFO L225 Difference]: With dead ends: 222
[2024-09-20 13:32:25,496 INFO L226 Difference]: Without dead ends: 222
[2024-09-20 13:32:25,496 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 13:32:25,497 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:25,497 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 13:32:25,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states.
[2024-09-20 13:32:25,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222.
[2024-09-20 13:32:25,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 219 states have (on average 1.1004566210045663) internal successors, (241), 221 states have internal predecessors, (241), 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 13:32:25,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 241 transitions.
[2024-09-20 13:32:25,504 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 241 transitions. Word has length 111
[2024-09-20 13:32:25,505 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:25,505 INFO L474 AbstractCegarLoop]: Abstraction has 222 states and 241 transitions.
[2024-09-20 13:32:25,505 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 13:32:25,505 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 241 transitions.
[2024-09-20 13:32:25,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129
[2024-09-20 13:32:25,509 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:25,510 INFO L216 NwaCegarLoop]: trace histogram [49, 42, 8, 7, 7, 7, 2, 2, 1, 1, 1, 1]
[2024-09-20 13:32:25,510 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-09-20 13:32:25,510 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] ===
[2024-09-20 13:32:25,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:25,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1988639740, now seen corresponding path program 2 times
[2024-09-20 13:32:25,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:25,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110842344]
[2024-09-20 13:32:25,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:25,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:25,930 INFO L134 CoverageAnalysis]: Checked inductivity of 2439 backedges. 621 proven. 1 refuted. 0 times theorem prover too weak. 1817 trivial. 0 not checked.
[2024-09-20 13:32:25,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:25,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110842344]
[2024-09-20 13:32:25,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110842344] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-20 13:32:25,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912352517]
[2024-09-20 13:32:25,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-09-20 13:32:25,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:32:25,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:32:25,933 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-20 13:32:25,934 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-09-20 13:32:26,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-09-20 13:32:26,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-20 13:32:26,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-09-20 13:32:26,029 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 13:32:26,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2439 backedges. 621 proven. 1 refuted. 0 times theorem prover too weak. 1817 trivial. 0 not checked.
[2024-09-20 13:32:26,147 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-20 13:32:26,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2439 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 2377 trivial. 0 not checked.
[2024-09-20 13:32:26,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912352517] provided 1 perfect and 1 imperfect interpolant sequences
[2024-09-20 13:32:26,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-09-20 13:32:26,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 6] total 12
[2024-09-20 13:32:26,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231069743]
[2024-09-20 13:32:26,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:32:26,214 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-20 13:32:26,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:26,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-20 13:32:26,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156
[2024-09-20 13:32:26,215 INFO L87 Difference]: Start difference. First operand 222 states and 241 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 13:32:26,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:26,245 INFO L93 Difference]: Finished difference Result 221 states and 235 transitions.
[2024-09-20 13:32:26,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-20 13:32:26,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 128
[2024-09-20 13:32:26,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:26,246 INFO L225 Difference]: With dead ends: 221
[2024-09-20 13:32:26,246 INFO L226 Difference]: Without dead ends: 221
[2024-09-20 13:32:26,246 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156
[2024-09-20 13:32:26,247 INFO L434 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:26,247 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 13:32:26,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states.
[2024-09-20 13:32:26,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221.
[2024-09-20 13:32:26,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 219 states have (on average 1.0730593607305936) internal successors, (235), 220 states have internal predecessors, (235), 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 13:32:26,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 235 transitions.
[2024-09-20 13:32:26,251 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 235 transitions. Word has length 128
[2024-09-20 13:32:26,251 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:26,251 INFO L474 AbstractCegarLoop]: Abstraction has 221 states and 235 transitions.
[2024-09-20 13:32:26,251 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 13:32:26,251 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 235 transitions.
[2024-09-20 13:32:26,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217
[2024-09-20 13:32:26,253 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:26,253 INFO L216 NwaCegarLoop]: trace histogram [84, 72, 14, 12, 12, 12, 2, 2, 2, 2, 1, 1]
[2024-09-20 13:32:26,274 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-09-20 13:32:26,454 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2024-09-20 13:32:26,454 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] ===
[2024-09-20 13:32:26,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:26,455 INFO L85 PathProgramCache]: Analyzing trace with hash -899465207, now seen corresponding path program 2 times
[2024-09-20 13:32:26,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:26,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554255507]
[2024-09-20 13:32:26,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:26,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:26,779 INFO L134 CoverageAnalysis]: Checked inductivity of 7225 backedges. 3671 proven. 0 refuted. 0 times theorem prover too weak. 3554 trivial. 0 not checked.
[2024-09-20 13:32:26,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:26,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554255507]
[2024-09-20 13:32:26,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554255507] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:32:26,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:32:26,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-09-20 13:32:26,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411516729]
[2024-09-20 13:32:26,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:32:26,790 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-09-20 13:32:26,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:26,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-09-20 13:32:26,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-09-20 13:32:26,790 INFO L87 Difference]: Start difference. First operand 221 states and 235 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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)
[2024-09-20 13:32:26,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:26,815 INFO L93 Difference]: Finished difference Result 220 states and 234 transitions.
[2024-09-20 13:32:26,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-09-20 13:32:26,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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) Word has length 216
[2024-09-20 13:32:26,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:26,816 INFO L225 Difference]: With dead ends: 220
[2024-09-20 13:32:26,816 INFO L226 Difference]: Without dead ends: 220
[2024-09-20 13:32:26,818 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-09-20 13:32:26,818 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:26,819 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 13:32:26,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states.
[2024-09-20 13:32:26,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220.
[2024-09-20 13:32:26,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 219 states have (on average 1.0684931506849316) internal successors, (234), 219 states have internal predecessors, (234), 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 13:32:26,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 234 transitions.
[2024-09-20 13:32:26,823 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 234 transitions. Word has length 216
[2024-09-20 13:32:26,823 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:26,823 INFO L474 AbstractCegarLoop]: Abstraction has 220 states and 234 transitions.
[2024-09-20 13:32:26,823 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 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)
[2024-09-20 13:32:26,823 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 234 transitions.
[2024-09-20 13:32:26,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220
[2024-09-20 13:32:26,825 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:26,825 INFO L216 NwaCegarLoop]: trace histogram [84, 72, 14, 12, 12, 12, 3, 2, 2, 2, 1, 1, 1, 1]
[2024-09-20 13:32:26,825 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-09-20 13:32:26,825 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] ===
[2024-09-20 13:32:26,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:26,826 INFO L85 PathProgramCache]: Analyzing trace with hash 333018945, now seen corresponding path program 1 times
[2024-09-20 13:32:26,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:26,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508266394]
[2024-09-20 13:32:26,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:26,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:27,129 INFO L134 CoverageAnalysis]: Checked inductivity of 7227 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 7209 trivial. 0 not checked.
[2024-09-20 13:32:27,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:27,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508266394]
[2024-09-20 13:32:27,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508266394] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:32:27,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:32:27,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-09-20 13:32:27,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065279151]
[2024-09-20 13:32:27,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:32:27,130 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-09-20 13:32:27,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:27,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-09-20 13:32:27,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2024-09-20 13:32:27,131 INFO L87 Difference]: Start difference. First operand 220 states and 234 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:32:27,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:27,157 INFO L93 Difference]: Finished difference Result 218 states and 232 transitions.
[2024-09-20 13:32:27,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-09-20 13:32:27,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219
[2024-09-20 13:32:27,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:27,158 INFO L225 Difference]: With dead ends: 218
[2024-09-20 13:32:27,158 INFO L226 Difference]: Without dead ends: 0
[2024-09-20 13:32:27,159 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2024-09-20 13:32:27,159 INFO L434 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:27,159 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 13:32:27,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-09-20 13:32:27,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-09-20 13:32:27,160 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 13:32:27,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-09-20 13:32:27,160 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 219
[2024-09-20 13:32:27,160 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:27,160 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-09-20 13:32:27,160 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:32:27,160 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-09-20 13:32:27,160 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-09-20 13:32:27,163 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining)
[2024-09-20 13:32:27,164 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining)
[2024-09-20 13:32:27,164 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 4 remaining)
[2024-09-20 13:32:27,164 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining)
[2024-09-20 13:32:27,164 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-09-20 13:32:27,167 INFO L408 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 2, 1, 1, 1, 1]
[2024-09-20 13:32:27,169 INFO L165 ceAbstractionStarter]: Computing trace abstraction results
[2024-09-20 13:32:27,171 INFO L469 ceAbstractionStarter]: Automizer considered 3 witness invariants
[2024-09-20 13:32:27,171 INFO L470 ceAbstractionStarter]: WitnessConsidered=3
[2024-09-20 13:32:27,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:32:27 BoogieIcfgContainer
[2024-09-20 13:32:27,172 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-20 13:32:27,172 INFO L158 Benchmark]: Toolchain (without parser) took 9272.17ms. Allocated memory was 153.1MB in the beginning and 190.8MB in the end (delta: 37.7MB). Free memory was 88.3MB in the beginning and 120.2MB in the end (delta: -31.9MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB.
[2024-09-20 13:32:27,172 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 96.5MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-20 13:32:27,173 INFO L158 Benchmark]: CDTParser took 1.48ms. Allocated memory is still 96.5MB. Free memory is still 46.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-20 13:32:27,173 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.17ms. Allocated memory is still 153.1MB. Free memory was 88.3MB in the beginning and 112.9MB in the end (delta: -24.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-09-20 13:32:27,173 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.68ms. Allocated memory is still 153.1MB. Free memory was 112.9MB in the beginning and 111.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-20 13:32:27,173 INFO L158 Benchmark]: Boogie Preprocessor took 53.54ms. Allocated memory is still 153.1MB. Free memory was 111.5MB in the beginning and 110.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-20 13:32:27,174 INFO L158 Benchmark]: RCFGBuilder took 333.12ms. Allocated memory is still 153.1MB. Free memory was 110.1MB in the beginning and 97.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-09-20 13:32:27,174 INFO L158 Benchmark]: TraceAbstraction took 8558.32ms. Allocated memory was 153.1MB in the beginning and 190.8MB in the end (delta: 37.7MB). Free memory was 97.5MB in the beginning and 120.2MB in the end (delta: -22.7MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB.
[2024-09-20 13:32:27,175 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* Witness Parser took 0.22ms. Allocated memory is still 96.5MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CDTParser took 1.48ms. Allocated memory is still 96.5MB. Free memory is still 46.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 292.17ms. Allocated memory is still 153.1MB. Free memory was 88.3MB in the beginning and 112.9MB in the end (delta: -24.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 28.68ms. Allocated memory is still 153.1MB. Free memory was 112.9MB in the beginning and 111.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 53.54ms. Allocated memory is still 153.1MB. Free memory was 111.5MB in the beginning and 110.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 333.12ms. Allocated memory is still 153.1MB. Free memory was 110.1MB in the beginning and 97.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 8558.32ms. Allocated memory was 153.1MB in the beginning and 190.8MB in the end (delta: 37.7MB). Free memory was 97.5MB in the beginning and 120.2MB in the end (delta: -22.7MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 21]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness holds at this location
- PositiveResult [Line: 22]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness holds at this location
- PositiveResult [Line: 23]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness holds at this location
- PositiveResult [Line: 29]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 17 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 16, TraceHistogramMax: 84, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 211 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 211 mSDsluCounter, 215 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 108 mSDsCounter, 92 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1159 IncrementalHoareTripleChecker+Invalid, 1251 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 92 mSolverCounterUnsat, 107 mSDtfsCounter, 1159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 656 GetRequests, 498 SyntacticMatches, 4 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=12, InterpolantAutomatonStates: 160, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 20 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 1210 NumberOfCodeBlocks, 1192 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 1440 ConstructedInterpolants, 0 QuantifiedInterpolants, 3874 SizeOfPredicates, 4 NumberOfNonLiveVariables, 903 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 32 InterpolantComputations, 10 PerfectInterpolantSequences, 24991/25353 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
4 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-09-20 13:32:27,202 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...