/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_normal_file-98.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-19 10:28:50,206 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-19 10:28:50,260 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 10:28:50,265 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-19 10:28:50,265 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-19 10:28:50,287 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-19 10:28:50,288 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-19 10:28:50,288 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-19 10:28:50,289 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-19 10:28:50,289 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-19 10:28:50,289 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-19 10:28:50,290 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-19 10:28:50,290 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-19 10:28:50,291 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-19 10:28:50,291 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-19 10:28:50,291 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-19 10:28:50,291 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-19 10:28:50,292 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-19 10:28:50,292 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-19 10:28:50,292 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-19 10:28:50,293 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-19 10:28:50,293 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-19 10:28:50,294 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-19 10:28:50,294 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-19 10:28:50,298 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-19 10:28:50,299 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-19 10:28:50,300 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-19 10:28:50,300 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-19 10:28:50,300 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-19 10:28:50,301 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-19 10:28:50,302 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-19 10:28:50,302 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-19 10:28:50,302 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 10:28:50,302 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-19 10:28:50,302 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-19 10:28:50,302 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-19 10:28:50,302 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-19 10:28:50,303 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-19 10:28:50,303 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-19 10:28:50,303 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-19 10:28:50,303 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-19 10:28:50,303 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-19 10:28:50,304 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-19 10:28:50,304 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-19 10:28:50,552 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-19 10:28:50,581 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-19 10:28:50,583 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-19 10:28:50,583 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-19 10:28:50,584 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-19 10:28:50,584 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-98.i
[2023-12-19 10:28:51,993 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-19 10:28:52,252 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-19 10:28:52,253 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-98.i
[2023-12-19 10:28:52,267 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fd512e61/dbbb92494956426d82ca98e05c69163f/FLAG8d19acf43
[2023-12-19 10:28:52,281 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fd512e61/dbbb92494956426d82ca98e05c69163f
[2023-12-19 10:28:52,283 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-19 10:28:52,284 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-19 10:28:52,285 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-19 10:28:52,285 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-19 10:28:52,289 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-19 10:28:52,290 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:28:52" (1/1) ...
[2023-12-19 10:28:52,291 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b031668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:28:52, skipping insertion in model container
[2023-12-19 10:28:52,291 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:28:52" (1/1) ...
[2023-12-19 10:28:52,332 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-19 10:28:52,459 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_normal_file-98.i[913,926]
[2023-12-19 10:28:52,521 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 10:28:52,536 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-19 10:28:52,547 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_normal_file-98.i[913,926]
[2023-12-19 10:28:52,573 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 10:28:52,606 INFO  L206         MainTranslator]: Completed translation
[2023-12-19 10:28:52,607 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:28:52 WrapperNode
[2023-12-19 10:28:52,607 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-19 10:28:52,608 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-19 10:28:52,608 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-19 10:28:52,609 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-19 10:28:52,614 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:28:52" (1/1) ...
[2023-12-19 10:28:52,624 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:28:52" (1/1) ...
[2023-12-19 10:28:52,670 INFO  L138                Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 164
[2023-12-19 10:28:52,670 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-19 10:28:52,671 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-19 10:28:52,671 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-19 10:28:52,671 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-19 10:28:52,682 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:28:52" (1/1) ...
[2023-12-19 10:28:52,682 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:28:52" (1/1) ...
[2023-12-19 10:28:52,685 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:28:52" (1/1) ...
[2023-12-19 10:28:52,719 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 10:28:52,719 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:28:52" (1/1) ...
[2023-12-19 10:28:52,719 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:28:52" (1/1) ...
[2023-12-19 10:28:52,733 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:28:52" (1/1) ...
[2023-12-19 10:28:52,736 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:28:52" (1/1) ...
[2023-12-19 10:28:52,738 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:28:52" (1/1) ...
[2023-12-19 10:28:52,740 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:28:52" (1/1) ...
[2023-12-19 10:28:52,743 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-19 10:28:52,743 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-19 10:28:52,744 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-19 10:28:52,744 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-19 10:28:52,756 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:28:52" (1/1) ...
[2023-12-19 10:28:52,762 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 10:28:52,773 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 10:28:52,796 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 10:28:52,806 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 10:28:52,826 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-19 10:28:52,826 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-19 10:28:52,827 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-19 10:28:52,827 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-19 10:28:52,828 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-19 10:28:52,828 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-19 10:28:52,932 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-19 10:28:52,935 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-19 10:28:53,294 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-19 10:28:53,340 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-19 10:28:53,340 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-19 10:28:53,341 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:28:53 BoogieIcfgContainer
[2023-12-19 10:28:53,341 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-19 10:28:53,343 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-19 10:28:53,343 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-19 10:28:53,350 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-19 10:28:53,350 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 10:28:52" (1/3) ...
[2023-12-19 10:28:53,352 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f4e25f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:28:53, skipping insertion in model container
[2023-12-19 10:28:53,352 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:28:52" (2/3) ...
[2023-12-19 10:28:53,352 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f4e25f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:28:53, skipping insertion in model container
[2023-12-19 10:28:53,352 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:28:53" (3/3) ...
[2023-12-19 10:28:53,353 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-98.i
[2023-12-19 10:28:53,367 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-19 10:28:53,367 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-19 10:28:53,407 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-19 10:28:53,412 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;@3d2302cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-19 10:28:53,413 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-19 10:28:53,416 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 66 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 40 states have internal predecessors, (57), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2023-12-19 10:28:53,430 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2023-12-19 10:28:53,430 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 10:28:53,431 INFO  L195           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:28:53,431 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 10:28:53,435 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 10:28:53,436 INFO  L85        PathProgramCache]: Analyzing trace with hash -619926407, now seen corresponding path program 1 times
[2023-12-19 10:28:53,442 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 10:28:53,442 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029613204]
[2023-12-19 10:28:53,443 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 10:28:53,443 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 10:28:53,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 10:28:53,637 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 10:28:53,638 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029613204]
[2023-12-19 10:28:53,638 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-19 10:28:53,638 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958935846]
[2023-12-19 10:28:53,639 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 10:28:53,639 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 10:28:53,639 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 10:28:53,654 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 10:28:53,662 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 10:28:53,837 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 10:28:53,842 INFO  L262         TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-19 10:28:53,851 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 10:28:53,918 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked.
[2023-12-19 10:28:53,919 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 10:28:53,919 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [958935846] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 10:28:53,920 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 10:28:53,920 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-19 10:28:53,923 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059311176]
[2023-12-19 10:28:53,924 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 10:28:53,928 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-19 10:28:53,929 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 10:28:53,963 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-19 10:28:53,964 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-19 10:28:53,965 INFO  L87              Difference]: Start difference. First operand  has 66 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 40 states have internal predecessors, (57), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand  has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24)
[2023-12-19 10:28:54,022 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 10:28:54,022 INFO  L93              Difference]: Finished difference Result 129 states and 232 transitions.
[2023-12-19 10:28:54,024 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-19 10:28:54,025 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) Word has length 149
[2023-12-19 10:28:54,026 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 10:28:54,034 INFO  L225             Difference]: With dead ends: 129
[2023-12-19 10:28:54,035 INFO  L226             Difference]: Without dead ends: 64
[2023-12-19 10:28:54,038 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 148 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 10:28:54,042 INFO  L413           NwaCegarLoop]: 97 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, 97 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 10:28:54,043 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 10:28:54,059 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2023-12-19 10:28:54,079 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64.
[2023-12-19 10:28:54,080 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64 states, 38 states have (on average 1.368421052631579) internal successors, (52), 38 states have internal predecessors, (52), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2023-12-19 10:28:54,082 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 100 transitions.
[2023-12-19 10:28:54,083 INFO  L78                 Accepts]: Start accepts. Automaton has 64 states and 100 transitions. Word has length 149
[2023-12-19 10:28:54,083 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 10:28:54,083 INFO  L495      AbstractCegarLoop]: Abstraction has 64 states and 100 transitions.
[2023-12-19 10:28:54,084 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24)
[2023-12-19 10:28:54,084 INFO  L276                IsEmpty]: Start isEmpty. Operand 64 states and 100 transitions.
[2023-12-19 10:28:54,087 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2023-12-19 10:28:54,087 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 10:28:54,087 INFO  L195           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:28:54,095 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 10:28:54,293 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 10:28:54,294 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 10:28:54,294 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 10:28:54,294 INFO  L85        PathProgramCache]: Analyzing trace with hash -1640694655, now seen corresponding path program 1 times
[2023-12-19 10:28:54,295 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 10:28:54,295 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172943655]
[2023-12-19 10:28:54,295 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 10:28:54,295 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 10:28:54,356 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 10:28:54,362 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2138791643]
[2023-12-19 10:28:54,363 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 10:28:54,364 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 10:28:54,364 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 10:28:54,365 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 10:28:54,385 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 10:28:55,034 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 10:28:55,036 INFO  L262         TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-19 10:28:55,042 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 10:28:55,162 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2023-12-19 10:28:55,163 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 10:28:55,163 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 10:28:55,163 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172943655]
[2023-12-19 10:28:55,163 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 10:28:55,163 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138791643]
[2023-12-19 10:28:55,164 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138791643] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 10:28:55,164 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 10:28:55,164 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-19 10:28:55,164 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261180115]
[2023-12-19 10:28:55,165 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 10:28:55,168 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-19 10:28:55,169 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 10:28:55,170 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-19 10:28:55,170 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 10:28:55,170 INFO  L87              Difference]: Start difference. First operand 64 states and 100 transitions. Second operand  has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24)
[2023-12-19 10:28:55,246 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 10:28:55,246 INFO  L93              Difference]: Finished difference Result 127 states and 199 transitions.
[2023-12-19 10:28:55,247 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-19 10:28:55,247 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 149
[2023-12-19 10:28:55,249 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 10:28:55,250 INFO  L225             Difference]: With dead ends: 127
[2023-12-19 10:28:55,250 INFO  L226             Difference]: Without dead ends: 64
[2023-12-19 10:28:55,251 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 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 10:28:55,252 INFO  L413           NwaCegarLoop]: 87 mSDtfsCounter, 19 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 10:28:55,252 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 155 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 10:28:55,254 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2023-12-19 10:28:55,261 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64.
[2023-12-19 10:28:55,262 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64 states, 38 states have (on average 1.3421052631578947) internal successors, (51), 38 states have internal predecessors, (51), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2023-12-19 10:28:55,263 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 99 transitions.
[2023-12-19 10:28:55,263 INFO  L78                 Accepts]: Start accepts. Automaton has 64 states and 99 transitions. Word has length 149
[2023-12-19 10:28:55,265 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 10:28:55,265 INFO  L495      AbstractCegarLoop]: Abstraction has 64 states and 99 transitions.
[2023-12-19 10:28:55,265 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24)
[2023-12-19 10:28:55,265 INFO  L276                IsEmpty]: Start isEmpty. Operand 64 states and 99 transitions.
[2023-12-19 10:28:55,267 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2023-12-19 10:28:55,268 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 10:28:55,268 INFO  L195           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:28:55,277 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 10:28:55,477 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 10:28:55,477 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 10:28:55,478 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 10:28:55,478 INFO  L85        PathProgramCache]: Analyzing trace with hash -939630077, now seen corresponding path program 1 times
[2023-12-19 10:28:55,478 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 10:28:55,478 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372296810]
[2023-12-19 10:28:55,478 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 10:28:55,479 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 10:28:55,535 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 10:28:55,535 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1183989398]
[2023-12-19 10:28:55,536 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 10:28:55,536 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 10:28:55,536 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 10:28:55,537 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 10:28:55,560 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 10:28:55,789 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 10:28:55,792 INFO  L262         TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-19 10:28:55,798 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 10:28:56,350 INFO  L134       CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked.
[2023-12-19 10:28:56,351 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 10:28:56,351 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 10:28:56,351 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372296810]
[2023-12-19 10:28:56,352 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 10:28:56,352 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183989398]
[2023-12-19 10:28:56,352 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183989398] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 10:28:56,352 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 10:28:56,352 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-19 10:28:56,352 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295297639]
[2023-12-19 10:28:56,352 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 10:28:56,354 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-19 10:28:56,354 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 10:28:56,355 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-19 10:28:56,355 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-12-19 10:28:56,355 INFO  L87              Difference]: Start difference. First operand 64 states and 99 transitions. Second operand  has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24)
[2023-12-19 10:28:57,502 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 10:28:57,502 INFO  L93              Difference]: Finished difference Result 319 states and 497 transitions.
[2023-12-19 10:28:57,502 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2023-12-19 10:28:57,503 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 149
[2023-12-19 10:28:57,503 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 10:28:57,506 INFO  L225             Difference]: With dead ends: 319
[2023-12-19 10:28:57,506 INFO  L226             Difference]: Without dead ends: 256
[2023-12-19 10:28:57,507 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132
[2023-12-19 10:28:57,508 INFO  L413           NwaCegarLoop]: 152 mSDtfsCounter, 337 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2023-12-19 10:28:57,508 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 677 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2023-12-19 10:28:57,509 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 256 states.
[2023-12-19 10:28:57,578 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 242.
[2023-12-19 10:28:57,579 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 242 states, 141 states have (on average 1.3404255319148937) internal successors, (189), 141 states have internal predecessors, (189), 96 states have call successors, (96), 4 states have call predecessors, (96), 4 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96)
[2023-12-19 10:28:57,581 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 381 transitions.
[2023-12-19 10:28:57,582 INFO  L78                 Accepts]: Start accepts. Automaton has 242 states and 381 transitions. Word has length 149
[2023-12-19 10:28:57,582 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 10:28:57,582 INFO  L495      AbstractCegarLoop]: Abstraction has 242 states and 381 transitions.
[2023-12-19 10:28:57,583 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24)
[2023-12-19 10:28:57,583 INFO  L276                IsEmpty]: Start isEmpty. Operand 242 states and 381 transitions.
[2023-12-19 10:28:57,585 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2023-12-19 10:28:57,585 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 10:28:57,585 INFO  L195           NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:28:57,597 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 10:28:57,797 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 10:28:57,799 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 10:28:57,800 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 10:28:57,800 INFO  L85        PathProgramCache]: Analyzing trace with hash -882371775, now seen corresponding path program 1 times
[2023-12-19 10:28:57,801 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 10:28:57,802 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225556156]
[2023-12-19 10:28:57,802 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 10:28:57,803 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 10:28:57,832 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 10:28:57,833 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440736318]
[2023-12-19 10:28:57,833 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 10:28:57,833 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 10:28:57,833 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 10:28:57,835 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 10:28:57,838 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 10:28:58,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 10:28:58,189 INFO  L262         TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 59 conjunts are in the unsatisfiable core
[2023-12-19 10:28:58,197 INFO  L285         TraceCheckSpWp]: Computing forward predicates...