/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-45.i


--------------------------------------------------------------------------------


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-19 09:26:11,686 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-19 09:26:11,759 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-19 09:26:11,762 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-19 09:26:11,763 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-19 09:26:11,786 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-19 09:26:11,787 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-19 09:26:11,787 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-19 09:26:11,788 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-19 09:26:11,791 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-19 09:26:11,791 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-19 09:26:11,791 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-19 09:26:11,791 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-19 09:26:11,792 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-19 09:26:11,792 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-19 09:26:11,792 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-19 09:26:11,793 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-19 09:26:11,793 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-19 09:26:11,793 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-19 09:26:11,793 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-19 09:26:11,793 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-19 09:26:11,794 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-19 09:26:11,794 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-19 09:26:11,794 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-19 09:26:11,794 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-19 09:26:11,794 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-19 09:26:11,795 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-19 09:26:11,795 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-19 09:26:11,795 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-19 09:26:11,795 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-19 09:26:11,796 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-19 09:26:11,796 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-19 09:26:11,796 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 09:26:11,797 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-19 09:26:11,797 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-19 09:26:11,797 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-19 09:26:11,797 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-19 09:26:11,797 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-19 09:26:11,797 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-19 09:26:11,797 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-19 09:26:11,797 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-19 09:26:11,798 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-19 09:26:11,798 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-19 09:26:11,798 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/ultimate/releaseScripts/default/UAutomizer-linux/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-19 09:26:11,985 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-19 09:26:12,004 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-19 09:26:12,006 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-19 09:26:12,007 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-19 09:26:12,007 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-19 09:26:12,008 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-45.i
[2023-12-19 09:26:13,128 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-19 09:26:13,315 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-19 09:26:13,320 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-45.i
[2023-12-19 09:26:13,330 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6eeb7c82/8cb4dc237d374f3083dbe6f150db53f5/FLAG85998e47f
[2023-12-19 09:26:13,344 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6eeb7c82/8cb4dc237d374f3083dbe6f150db53f5
[2023-12-19 09:26:13,346 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-19 09:26:13,347 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-19 09:26:13,349 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-19 09:26:13,349 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-19 09:26:13,353 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-19 09:26:13,353 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 09:26:13" (1/1) ...
[2023-12-19 09:26:13,354 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d76a92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:26:13, skipping insertion in model container
[2023-12-19 09:26:13,354 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 09:26:13" (1/1) ...
[2023-12-19 09:26:13,385 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-19 09:26:13,474 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-45.i[919,932]
[2023-12-19 09:26:13,518 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 09:26:13,528 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-19 09:26:13,536 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-45.i[919,932]
[2023-12-19 09:26:13,564 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 09:26:13,576 INFO  L206         MainTranslator]: Completed translation
[2023-12-19 09:26:13,577 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:26:13 WrapperNode
[2023-12-19 09:26:13,577 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-19 09:26:13,578 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-19 09:26:13,578 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-19 09:26:13,578 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-19 09:26:13,582 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:26:13" (1/1) ...
[2023-12-19 09:26:13,592 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:26:13" (1/1) ...
[2023-12-19 09:26:13,635 INFO  L138                Inliner]: procedures = 26, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 219
[2023-12-19 09:26:13,635 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-19 09:26:13,636 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-19 09:26:13,636 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-19 09:26:13,636 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-19 09:26:13,653 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:26:13" (1/1) ...
[2023-12-19 09:26:13,653 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:26:13" (1/1) ...
[2023-12-19 09:26:13,655 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:26:13" (1/1) ...
[2023-12-19 09:26:13,684 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].
[2023-12-19 09:26:13,684 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:26:13" (1/1) ...
[2023-12-19 09:26:13,685 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:26:13" (1/1) ...
[2023-12-19 09:26:13,691 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:26:13" (1/1) ...
[2023-12-19 09:26:13,693 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:26:13" (1/1) ...
[2023-12-19 09:26:13,695 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:26:13" (1/1) ...
[2023-12-19 09:26:13,712 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:26:13" (1/1) ...
[2023-12-19 09:26:13,715 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-19 09:26:13,716 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-19 09:26:13,716 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-19 09:26:13,716 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-19 09:26:13,717 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:26:13" (1/1) ...
[2023-12-19 09:26:13,724 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 09:26:13,731 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 09:26:13,742 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-19 09:26:13,771 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-19 09:26:13,778 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-19 09:26:13,778 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-19 09:26:13,778 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-19 09:26:13,778 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-19 09:26:13,778 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-19 09:26:13,778 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-19 09:26:13,866 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-19 09:26:13,868 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-19 09:26:14,126 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-19 09:26:14,164 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-19 09:26:14,164 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-19 09:26:14,164 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 09:26:14 BoogieIcfgContainer
[2023-12-19 09:26:14,165 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-19 09:26:14,166 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-19 09:26:14,166 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-19 09:26:14,168 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-19 09:26:14,169 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 09:26:13" (1/3) ...
[2023-12-19 09:26:14,169 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd59574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 09:26:14, skipping insertion in model container
[2023-12-19 09:26:14,169 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:26:13" (2/3) ...
[2023-12-19 09:26:14,169 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd59574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 09:26:14, skipping insertion in model container
[2023-12-19 09:26:14,169 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 09:26:14" (3/3) ...
[2023-12-19 09:26:14,170 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-45.i
[2023-12-19 09:26:14,182 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-19 09:26:14,182 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-19 09:26:14,214 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-19 09:26:14,220 INFO  L357      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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@2200a881, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-19 09:26:14,221 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-19 09:26:14,224 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 91 states, 53 states have (on average 1.4528301886792452) internal successors, (77), 54 states have internal predecessors, (77), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2023-12-19 09:26:14,235 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 218
[2023-12-19 09:26:14,235 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 09:26:14,236 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 09:26:14,236 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 09:26:14,240 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 09:26:14,240 INFO  L85        PathProgramCache]: Analyzing trace with hash 626110442, now seen corresponding path program 1 times
[2023-12-19 09:26:14,246 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 09:26:14,247 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803020302]
[2023-12-19 09:26:14,247 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:26:14,248 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 09:26:14,410 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 09:26:14,539 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 09:26:14,540 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803020302]
[2023-12-19 09:26:14,540 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-19 09:26:14,541 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576209339]
[2023-12-19 09:26:14,541 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:26:14,541 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 09:26:14,541 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 09:26:14,557 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 09:26:14,586 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-19 09:26:14,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 09:26:14,701 INFO  L262         TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-19 09:26:14,708 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 09:26:14,740 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 2312 trivial. 0 not checked.
[2023-12-19 09:26:14,740 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 09:26:14,740 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576209339] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 09:26:14,740 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 09:26:14,741 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-19 09:26:14,742 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570300382]
[2023-12-19 09:26:14,742 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 09:26:14,746 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-19 09:26:14,746 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 09:26:14,775 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-19 09:26:14,776 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-19 09:26:14,777 INFO  L87              Difference]: Start difference. First operand  has 91 states, 53 states have (on average 1.4528301886792452) internal successors, (77), 54 states have internal predecessors, (77), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35)
[2023-12-19 09:26:14,809 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 09:26:14,809 INFO  L93              Difference]: Finished difference Result 179 states and 327 transitions.
[2023-12-19 09:26:14,810 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-19 09:26:14,811 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35) Word has length 217
[2023-12-19 09:26:14,811 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 09:26:14,817 INFO  L225             Difference]: With dead ends: 179
[2023-12-19 09:26:14,817 INFO  L226             Difference]: Without dead ends: 89
[2023-12-19 09:26:14,819 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-19 09:26:14,823 INFO  L413           NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 09:26:14,824 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 09:26:14,835 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 89 states.
[2023-12-19 09:26:14,856 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89.
[2023-12-19 09:26:14,857 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 89 states, 52 states have (on average 1.3846153846153846) internal successors, (72), 52 states have internal predecessors, (72), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35)
[2023-12-19 09:26:14,859 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 142 transitions.
[2023-12-19 09:26:14,860 INFO  L78                 Accepts]: Start accepts. Automaton has 89 states and 142 transitions. Word has length 217
[2023-12-19 09:26:14,860 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 09:26:14,861 INFO  L495      AbstractCegarLoop]: Abstraction has 89 states and 142 transitions.
[2023-12-19 09:26:14,861 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35)
[2023-12-19 09:26:14,861 INFO  L276                IsEmpty]: Start isEmpty. Operand 89 states and 142 transitions.
[2023-12-19 09:26:14,864 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 218
[2023-12-19 09:26:14,865 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 09:26:14,865 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 09:26:14,874 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-12-19 09:26:15,072 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-12-19 09:26:15,073 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 09:26:15,073 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 09:26:15,073 INFO  L85        PathProgramCache]: Analyzing trace with hash 1426864052, now seen corresponding path program 1 times
[2023-12-19 09:26:15,073 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 09:26:15,074 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578346206]
[2023-12-19 09:26:15,074 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:26:15,074 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 09:26:15,133 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 09:26:15,134 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1847988074]
[2023-12-19 09:26:15,134 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:26:15,134 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 09:26:15,134 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 09:26:15,152 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 09:26:15,154 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-19 09:26:15,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 09:26:15,287 INFO  L262         TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-19 09:26:15,294 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 09:26:15,609 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2023-12-19 09:26:15,609 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 09:26:15,610 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 09:26:15,610 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578346206]
[2023-12-19 09:26:15,610 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 09:26:15,610 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847988074]
[2023-12-19 09:26:15,610 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847988074] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 09:26:15,610 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 09:26:15,610 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-19 09:26:15,611 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64684014]
[2023-12-19 09:26:15,611 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 09:26:15,612 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-19 09:26:15,612 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 09:26:15,612 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-19 09:26:15,612 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 09:26:15,613 INFO  L87              Difference]: Start difference. First operand 89 states and 142 transitions. Second operand  has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-19 09:26:15,646 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 09:26:15,646 INFO  L93              Difference]: Finished difference Result 258 states and 415 transitions.
[2023-12-19 09:26:15,646 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-19 09:26:15,647 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 217
[2023-12-19 09:26:15,648 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 09:26:15,649 INFO  L225             Difference]: With dead ends: 258
[2023-12-19 09:26:15,649 INFO  L226             Difference]: Without dead ends: 170
[2023-12-19 09:26:15,650 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 09:26:15,651 INFO  L413           NwaCegarLoop]: 138 mSDtfsCounter, 22 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 09:26:15,651 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 271 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 09:26:15,652 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 170 states.
[2023-12-19 09:26:15,685 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 165.
[2023-12-19 09:26:15,686 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 165 states, 92 states have (on average 1.3478260869565217) internal successors, (124), 92 states have internal predecessors, (124), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70)
[2023-12-19 09:26:15,688 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 264 transitions.
[2023-12-19 09:26:15,688 INFO  L78                 Accepts]: Start accepts. Automaton has 165 states and 264 transitions. Word has length 217
[2023-12-19 09:26:15,689 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 09:26:15,689 INFO  L495      AbstractCegarLoop]: Abstraction has 165 states and 264 transitions.
[2023-12-19 09:26:15,689 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-19 09:26:15,689 INFO  L276                IsEmpty]: Start isEmpty. Operand 165 states and 264 transitions.
[2023-12-19 09:26:15,691 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 218
[2023-12-19 09:26:15,691 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 09:26:15,691 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 09:26:15,710 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-12-19 09:26:15,897 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-12-19 09:26:15,897 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 09:26:15,898 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 09:26:15,898 INFO  L85        PathProgramCache]: Analyzing trace with hash 2106922422, now seen corresponding path program 1 times
[2023-12-19 09:26:15,898 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 09:26:15,898 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301554207]
[2023-12-19 09:26:15,898 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:26:15,898 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 09:26:15,936 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 09:26:15,937 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1837438330]
[2023-12-19 09:26:15,937 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:26:15,937 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 09:26:15,937 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 09:26:15,946 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 09:26:15,948 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-19 09:26:16,061 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 09:26:16,063 INFO  L262         TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-19 09:26:16,066 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 09:26:16,089 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2023-12-19 09:26:16,089 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 09:26:16,090 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 09:26:16,090 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301554207]
[2023-12-19 09:26:16,090 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 09:26:16,090 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837438330]
[2023-12-19 09:26:16,090 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837438330] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 09:26:16,090 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 09:26:16,090 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-19 09:26:16,090 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214824030]
[2023-12-19 09:26:16,090 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 09:26:16,091 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-19 09:26:16,091 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 09:26:16,091 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-19 09:26:16,092 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 09:26:16,092 INFO  L87              Difference]: Start difference. First operand 165 states and 264 transitions. Second operand  has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-19 09:26:16,161 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 09:26:16,161 INFO  L93              Difference]: Finished difference Result 359 states and 574 transitions.
[2023-12-19 09:26:16,161 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-19 09:26:16,161 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 217
[2023-12-19 09:26:16,164 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 09:26:16,168 INFO  L225             Difference]: With dead ends: 359
[2023-12-19 09:26:16,168 INFO  L226             Difference]: Without dead ends: 258
[2023-12-19 09:26:16,169 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 09:26:16,171 INFO  L413           NwaCegarLoop]: 139 mSDtfsCounter, 124 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 09:26:16,172 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 257 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 09:26:16,173 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 258 states.
[2023-12-19 09:26:16,200 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 256.
[2023-12-19 09:26:16,201 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 256 states, 147 states have (on average 1.3061224489795917) internal successors, (192), 147 states have internal predecessors, (192), 105 states have call successors, (105), 3 states have call predecessors, (105), 3 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105)
[2023-12-19 09:26:16,202 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 402 transitions.
[2023-12-19 09:26:16,202 INFO  L78                 Accepts]: Start accepts. Automaton has 256 states and 402 transitions. Word has length 217
[2023-12-19 09:26:16,203 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 09:26:16,203 INFO  L495      AbstractCegarLoop]: Abstraction has 256 states and 402 transitions.
[2023-12-19 09:26:16,203 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-19 09:26:16,203 INFO  L276                IsEmpty]: Start isEmpty. Operand 256 states and 402 transitions.
[2023-12-19 09:26:16,205 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 220
[2023-12-19 09:26:16,205 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 09:26:16,205 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 09:26:16,215 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-12-19 09:26:16,415 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 09:26:16,415 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 09:26:16,416 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 09:26:16,416 INFO  L85        PathProgramCache]: Analyzing trace with hash -1550859058, now seen corresponding path program 1 times
[2023-12-19 09:26:16,416 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 09:26:16,416 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955069172]
[2023-12-19 09:26:16,416 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:26:16,416 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 09:26:16,467 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 09:26:16,468 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1066486284]
[2023-12-19 09:26:16,468 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:26:16,468 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 09:26:16,468 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 09:26:16,482 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 09:26:16,509 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-19 09:26:16,621 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 09:26:16,623 INFO  L262         TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-19 09:26:16,627 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 09:26:17,333 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked.
[2023-12-19 09:26:17,334 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 09:26:17,334 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 09:26:17,334 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955069172]
[2023-12-19 09:26:17,334 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 09:26:17,334 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066486284]
[2023-12-19 09:26:17,334 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066486284] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 09:26:17,334 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 09:26:17,334 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-19 09:26:17,335 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805783551]
[2023-12-19 09:26:17,335 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 09:26:17,336 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-19 09:26:17,336 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 09:26:17,336 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-19 09:26:17,337 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-19 09:26:17,338 INFO  L87              Difference]: Start difference. First operand 256 states and 402 transitions. Second operand  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-19 09:26:17,719 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 09:26:17,719 INFO  L93              Difference]: Finished difference Result 531 states and 829 transitions.
[2023-12-19 09:26:17,720 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-19 09:26:17,720 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 219
[2023-12-19 09:26:17,720 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 09:26:17,722 INFO  L225             Difference]: With dead ends: 531
[2023-12-19 09:26:17,722 INFO  L226             Difference]: Without dead ends: 362
[2023-12-19 09:26:17,723 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-19 09:26:17,723 INFO  L413           NwaCegarLoop]: 139 mSDtfsCounter, 226 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-19 09:26:17,724 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 230 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-19 09:26:17,724 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 362 states.
[2023-12-19 09:26:17,756 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 358.
[2023-12-19 09:26:17,757 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 358 states, 231 states have (on average 1.367965367965368) internal successors, (316), 233 states have internal predecessors, (316), 121 states have call successors, (121), 5 states have call predecessors, (121), 5 states have return successors, (121), 119 states have call predecessors, (121), 121 states have call successors, (121)
[2023-12-19 09:26:17,759 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 558 transitions.
[2023-12-19 09:26:17,759 INFO  L78                 Accepts]: Start accepts. Automaton has 358 states and 558 transitions. Word has length 219
[2023-12-19 09:26:17,759 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 09:26:17,759 INFO  L495      AbstractCegarLoop]: Abstraction has 358 states and 558 transitions.
[2023-12-19 09:26:17,760 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35)
[2023-12-19 09:26:17,760 INFO  L276                IsEmpty]: Start isEmpty. Operand 358 states and 558 transitions.
[2023-12-19 09:26:17,761 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 220
[2023-12-19 09:26:17,762 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 09:26:17,762 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 09:26:17,770 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-12-19 09:26:17,968 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 09:26:17,968 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 09:26:17,968 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 09:26:17,969 INFO  L85        PathProgramCache]: Analyzing trace with hash -1873056120, now seen corresponding path program 1 times
[2023-12-19 09:26:17,969 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 09:26:17,969 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636131539]
[2023-12-19 09:26:17,969 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:26:17,969 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 09:26:17,993 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 09:26:17,993 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789893619]
[2023-12-19 09:26:17,993 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:26:17,994 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 09:26:17,994 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 09:26:17,995 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 09:26:17,997 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-12-19 09:26:18,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 09:26:18,117 INFO  L262         TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-12-19 09:26:18,120 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 09:26:18,498 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 1182 proven. 60 refuted. 0 times theorem prover too weak. 1138 trivial. 0 not checked.
[2023-12-19 09:26:18,499 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-19 09:26:18,750 INFO  L134       CoverageAnalysis]: Checked inductivity of 2380 backedges. 42 proven. 60 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked.
[2023-12-19 09:26:18,751 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 09:26:18,751 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636131539]
[2023-12-19 09:26:18,751 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 09:26:18,752 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789893619]
[2023-12-19 09:26:18,754 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [789893619] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-19 09:26:18,754 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-19 09:26:18,758 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11
[2023-12-19 09:26:18,758 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237543377]
[2023-12-19 09:26:18,758 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-19 09:26:18,759 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2023-12-19 09:26:18,759 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 09:26:18,759 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2023-12-19 09:26:18,759 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2023-12-19 09:26:18,760 INFO  L87              Difference]: Start difference. First operand 358 states and 558 transitions. Second operand  has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 4 states have call successors, (70), 3 states have call predecessors, (70), 5 states have return successors, (70), 4 states have call predecessors, (70), 4 states have call successors, (70)
[2023-12-19 09:26:18,974 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 09:26:18,974 INFO  L93              Difference]: Finished difference Result 515 states and 788 transitions.
[2023-12-19 09:26:18,975 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-19 09:26:18,975 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 4 states have call successors, (70), 3 states have call predecessors, (70), 5 states have return successors, (70), 4 states have call predecessors, (70), 4 states have call successors, (70) Word has length 219
[2023-12-19 09:26:18,975 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 09:26:18,977 INFO  L225             Difference]: With dead ends: 515
[2023-12-19 09:26:18,978 INFO  L226             Difference]: Without dead ends: 251
[2023-12-19 09:26:18,979 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 426 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=129, Unknown=0, NotChecked=0, Total=210
[2023-12-19 09:26:18,980 INFO  L413           NwaCegarLoop]: 86 mSDtfsCounter, 225 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-19 09:26:18,981 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 187 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-19 09:26:18,982 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 251 states.
[2023-12-19 09:26:19,009 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 225.
[2023-12-19 09:26:19,010 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 225 states, 141 states have (on average 1.2836879432624113) internal successors, (181), 142 states have internal predecessors, (181), 78 states have call successors, (78), 5 states have call predecessors, (78), 5 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78)
[2023-12-19 09:26:19,011 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 337 transitions.
[2023-12-19 09:26:19,011 INFO  L78                 Accepts]: Start accepts. Automaton has 225 states and 337 transitions. Word has length 219
[2023-12-19 09:26:19,015 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 09:26:19,015 INFO  L495      AbstractCegarLoop]: Abstraction has 225 states and 337 transitions.
[2023-12-19 09:26:19,015 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 4 states have call successors, (70), 3 states have call predecessors, (70), 5 states have return successors, (70), 4 states have call predecessors, (70), 4 states have call successors, (70)
[2023-12-19 09:26:19,015 INFO  L276                IsEmpty]: Start isEmpty. Operand 225 states and 337 transitions.
[2023-12-19 09:26:19,017 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 221
[2023-12-19 09:26:19,017 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 09:26:19,017 INFO  L195           NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 09:26:19,035 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-12-19 09:26:19,237 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 09:26:19,237 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 09:26:19,237 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 09:26:19,238 INFO  L85        PathProgramCache]: Analyzing trace with hash 362988642, now seen corresponding path program 1 times
[2023-12-19 09:26:19,238 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 09:26:19,238 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515669629]
[2023-12-19 09:26:19,238 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:26:19,238 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 09:26:19,266 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 09:26:19,266 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127672962]
[2023-12-19 09:26:19,266 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:26:19,266 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 09:26:19,266 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 09:26:19,281 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 09:26:19,304 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-12-19 09:26:19,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 09:26:19,435 INFO  L262         TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 54 conjunts are in the unsatisfiable core
[2023-12-19 09:26:19,445 INFO  L285         TraceCheckSpWp]: Computing forward predicates...