/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_fillercodesize_ps-cn-250_file-4.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-19 06:54:27,822 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-19 06:54:27,908 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 06:54:27,917 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-19 06:54:27,917 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-19 06:54:27,951 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-19 06:54:27,952 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-19 06:54:27,952 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-19 06:54:27,953 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-19 06:54:27,958 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-19 06:54:27,959 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-19 06:54:27,959 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-19 06:54:27,960 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-19 06:54:27,961 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-19 06:54:27,961 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-19 06:54:27,961 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-19 06:54:27,962 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-19 06:54:27,962 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-19 06:54:27,962 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-19 06:54:27,964 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-19 06:54:27,964 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-19 06:54:27,964 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-19 06:54:27,964 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-19 06:54:27,965 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-19 06:54:27,965 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-19 06:54:27,965 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-19 06:54:27,965 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-19 06:54:27,965 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-19 06:54:27,966 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-19 06:54:27,966 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-19 06:54:27,967 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-19 06:54:27,967 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-19 06:54:27,967 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 06:54:27,968 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-19 06:54:27,968 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-19 06:54:27,968 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-19 06:54:27,968 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-19 06:54:27,968 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-19 06:54:27,968 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-19 06:54:27,969 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-19 06:54:27,969 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-19 06:54:27,969 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-19 06:54:27,969 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-19 06:54:27,969 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-19 06:54:28,173 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-19 06:54:28,205 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-19 06:54:28,211 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-19 06:54:28,212 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-19 06:54:28,212 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-19 06:54:28,214 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-4.i
[2023-12-19 06:54:29,446 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-19 06:54:29,725 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-19 06:54:29,725 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-4.i
[2023-12-19 06:54:29,746 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d936cf12c/ee2e6343d84047f880338833ec79a8f4/FLAGa87bc5e33
[2023-12-19 06:54:29,769 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d936cf12c/ee2e6343d84047f880338833ec79a8f4
[2023-12-19 06:54:29,771 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-19 06:54:29,772 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-19 06:54:29,774 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-19 06:54:29,774 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-19 06:54:29,778 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-19 06:54:29,778 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:54:29" (1/1) ...
[2023-12-19 06:54:29,779 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2777489f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:54:29, skipping insertion in model container
[2023-12-19 06:54:29,779 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:54:29" (1/1) ...
[2023-12-19 06:54:29,812 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-19 06:54:29,931 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_fillercodesize_ps-cn-250_file-4.i[915,928]
[2023-12-19 06:54:30,061 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 06:54:30,088 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-19 06:54:30,097 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_fillercodesize_ps-cn-250_file-4.i[915,928]
[2023-12-19 06:54:30,180 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 06:54:30,193 INFO  L206         MainTranslator]: Completed translation
[2023-12-19 06:54:30,193 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:54:30 WrapperNode
[2023-12-19 06:54:30,194 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-19 06:54:30,194 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-19 06:54:30,194 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-19 06:54:30,195 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-19 06:54:30,199 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:54:30" (1/1) ...
[2023-12-19 06:54:30,219 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:54:30" (1/1) ...
[2023-12-19 06:54:30,280 INFO  L138                Inliner]: procedures = 26, calls = 86, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 518
[2023-12-19 06:54:30,281 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-19 06:54:30,281 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-19 06:54:30,281 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-19 06:54:30,281 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-19 06:54:30,290 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:54:30" (1/1) ...
[2023-12-19 06:54:30,290 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:54:30" (1/1) ...
[2023-12-19 06:54:30,297 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:54:30" (1/1) ...
[2023-12-19 06:54:30,356 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 06:54:30,357 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:54:30" (1/1) ...
[2023-12-19 06:54:30,357 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:54:30" (1/1) ...
[2023-12-19 06:54:30,378 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:54:30" (1/1) ...
[2023-12-19 06:54:30,395 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:54:30" (1/1) ...
[2023-12-19 06:54:30,417 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:54:30" (1/1) ...
[2023-12-19 06:54:30,421 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:54:30" (1/1) ...
[2023-12-19 06:54:30,428 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-19 06:54:30,429 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-19 06:54:30,429 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-19 06:54:30,430 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-19 06:54:30,430 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:54:30" (1/1) ...
[2023-12-19 06:54:30,443 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 06:54:30,453 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:54:30,492 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 06:54:30,523 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 06:54:30,550 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-19 06:54:30,550 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-19 06:54:30,551 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-19 06:54:30,551 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-19 06:54:30,551 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-19 06:54:30,551 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-19 06:54:30,644 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-19 06:54:30,646 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-19 06:54:31,163 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-19 06:54:31,200 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-19 06:54:31,200 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-19 06:54:31,201 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:54:31 BoogieIcfgContainer
[2023-12-19 06:54:31,201 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-19 06:54:31,203 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-19 06:54:31,203 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-19 06:54:31,206 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-19 06:54:31,206 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 06:54:29" (1/3) ...
[2023-12-19 06:54:31,206 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a18dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 06:54:31, skipping insertion in model container
[2023-12-19 06:54:31,207 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:54:30" (2/3) ...
[2023-12-19 06:54:31,207 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a18dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 06:54:31, skipping insertion in model container
[2023-12-19 06:54:31,207 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:54:31" (3/3) ...
[2023-12-19 06:54:31,208 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-4.i
[2023-12-19 06:54:31,223 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-19 06:54:31,223 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-19 06:54:31,277 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-19 06:54:31,285 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;@1a696519, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-19 06:54:31,285 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-19 06:54:31,292 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 204 states, 128 states have (on average 1.578125) internal successors, (202), 129 states have internal predecessors, (202), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73)
[2023-12-19 06:54:31,320 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 453
[2023-12-19 06:54:31,320 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:54:31,321 INFO  L195           NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:54:31,322 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:54:31,326 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:54:31,327 INFO  L85        PathProgramCache]: Analyzing trace with hash -403475572, now seen corresponding path program 1 times
[2023-12-19 06:54:31,338 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:54:31,338 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103527879]
[2023-12-19 06:54:31,339 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:54:31,339 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:54:31,522 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:54:31,615 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 06:54:31,615 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103527879]
[2023-12-19 06:54:31,620 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-19 06:54:31,620 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291606758]
[2023-12-19 06:54:31,620 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:54:31,620 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:54:31,620 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:54:31,632 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 06:54:31,636 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 06:54:31,906 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:54:31,912 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-19 06:54:31,971 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 06:54:32,037 INFO  L134       CoverageAnalysis]: Checked inductivity of 10512 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 10368 trivial. 0 not checked.
[2023-12-19 06:54:32,037 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 06:54:32,038 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [291606758] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 06:54:32,038 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 06:54:32,038 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-19 06:54:32,040 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270895370]
[2023-12-19 06:54:32,041 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 06:54:32,047 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-19 06:54:32,047 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 06:54:32,072 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-19 06:54:32,073 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-19 06:54:32,076 INFO  L87              Difference]: Start difference. First operand  has 204 states, 128 states have (on average 1.578125) internal successors, (202), 129 states have internal predecessors, (202), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand  has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 2 states have call successors, (73)
[2023-12-19 06:54:32,146 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 06:54:32,146 INFO  L93              Difference]: Finished difference Result 404 states and 765 transitions.
[2023-12-19 06:54:32,147 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-19 06:54:32,148 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 2 states have call successors, (73) Word has length 452
[2023-12-19 06:54:32,149 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 06:54:32,158 INFO  L225             Difference]: With dead ends: 404
[2023-12-19 06:54:32,159 INFO  L226             Difference]: Without dead ends: 201
[2023-12-19 06:54:32,165 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 451 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 06:54:32,167 INFO  L413           NwaCegarLoop]: 334 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, 334 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 06:54:32,168 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 334 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 06:54:32,181 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 201 states.
[2023-12-19 06:54:32,220 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201.
[2023-12-19 06:54:32,222 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 201 states, 126 states have (on average 1.5158730158730158) internal successors, (191), 126 states have internal predecessors, (191), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73)
[2023-12-19 06:54:32,225 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 337 transitions.
[2023-12-19 06:54:32,226 INFO  L78                 Accepts]: Start accepts. Automaton has 201 states and 337 transitions. Word has length 452
[2023-12-19 06:54:32,227 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 06:54:32,227 INFO  L495      AbstractCegarLoop]: Abstraction has 201 states and 337 transitions.
[2023-12-19 06:54:32,228 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 2 states have call successors, (73)
[2023-12-19 06:54:32,228 INFO  L276                IsEmpty]: Start isEmpty. Operand 201 states and 337 transitions.
[2023-12-19 06:54:32,236 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 454
[2023-12-19 06:54:32,236 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:54:32,236 INFO  L195           NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:54:32,246 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 06:54:32,443 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 06:54:32,444 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:54:32,445 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:54:32,445 INFO  L85        PathProgramCache]: Analyzing trace with hash -176846232, now seen corresponding path program 1 times
[2023-12-19 06:54:32,445 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:54:32,445 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978156299]
[2023-12-19 06:54:32,445 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:54:32,445 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:54:32,528 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 06:54:32,528 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523416871]
[2023-12-19 06:54:32,528 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:54:32,528 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:54:32,528 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:54:32,529 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 06:54:32,571 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 06:54:32,739 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:54:32,743 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-19 06:54:32,749 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 06:54:32,788 INFO  L134       CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked.
[2023-12-19 06:54:32,788 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 06:54:32,789 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 06:54:32,789 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978156299]
[2023-12-19 06:54:32,789 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 06:54:32,789 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523416871]
[2023-12-19 06:54:32,789 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523416871] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 06:54:32,789 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 06:54:32,789 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-19 06:54:32,790 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815858910]
[2023-12-19 06:54:32,790 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 06:54:32,792 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-19 06:54:32,793 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 06:54:32,794 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-19 06:54:32,794 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 06:54:32,794 INFO  L87              Difference]: Start difference. First operand 201 states and 337 transitions. Second operand  has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73)
[2023-12-19 06:54:32,871 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 06:54:32,872 INFO  L93              Difference]: Finished difference Result 526 states and 885 transitions.
[2023-12-19 06:54:32,872 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-19 06:54:32,872 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 453
[2023-12-19 06:54:32,875 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 06:54:32,877 INFO  L225             Difference]: With dead ends: 526
[2023-12-19 06:54:32,877 INFO  L226             Difference]: Without dead ends: 326
[2023-12-19 06:54:32,878 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 451 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 06:54:32,880 INFO  L413           NwaCegarLoop]: 537 mSDtfsCounter, 214 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 06:54:32,881 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 854 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 06:54:32,883 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 326 states.
[2023-12-19 06:54:32,921 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 323.
[2023-12-19 06:54:32,923 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 323 states, 216 states have (on average 1.5555555555555556) internal successors, (336), 217 states have internal predecessors, (336), 104 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104)
[2023-12-19 06:54:32,925 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 544 transitions.
[2023-12-19 06:54:32,926 INFO  L78                 Accepts]: Start accepts. Automaton has 323 states and 544 transitions. Word has length 453
[2023-12-19 06:54:32,927 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 06:54:32,927 INFO  L495      AbstractCegarLoop]: Abstraction has 323 states and 544 transitions.
[2023-12-19 06:54:32,928 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73)
[2023-12-19 06:54:32,928 INFO  L276                IsEmpty]: Start isEmpty. Operand 323 states and 544 transitions.
[2023-12-19 06:54:32,934 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 454
[2023-12-19 06:54:32,934 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:54:32,934 INFO  L195           NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:54:32,964 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 06:54:33,142 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 06:54:33,143 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:54:33,144 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:54:33,144 INFO  L85        PathProgramCache]: Analyzing trace with hash 71300262, now seen corresponding path program 1 times
[2023-12-19 06:54:33,145 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:54:33,145 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252976989]
[2023-12-19 06:54:33,145 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:54:33,147 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:54:33,239 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 06:54:33,239 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2075475413]
[2023-12-19 06:54:33,239 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:54:33,239 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:54:33,240 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:54:33,284 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 06:54:33,309 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 06:54:33,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:54:33,503 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-19 06:54:33,509 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 06:54:33,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 10512 backedges. 5316 proven. 102 refuted. 0 times theorem prover too weak. 5094 trivial. 0 not checked.
[2023-12-19 06:54:33,766 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-19 06:54:34,033 INFO  L134       CoverageAnalysis]: Checked inductivity of 10512 backedges. 114 proven. 102 refuted. 0 times theorem prover too weak. 10296 trivial. 0 not checked.
[2023-12-19 06:54:34,033 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 06:54:34,033 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252976989]
[2023-12-19 06:54:34,034 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 06:54:34,034 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075475413]
[2023-12-19 06:54:34,034 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075475413] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-19 06:54:34,034 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-19 06:54:34,034 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-19 06:54:34,034 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142532206]
[2023-12-19 06:54:34,034 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-19 06:54:34,035 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-19 06:54:34,035 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 06:54:34,036 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-19 06:54:34,036 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-19 06:54:34,036 INFO  L87              Difference]: Start difference. First operand 323 states and 544 transitions. Second operand  has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 2 states have call successors, (107), 2 states have call predecessors, (107), 4 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108)
[2023-12-19 06:54:34,335 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 06:54:34,336 INFO  L93              Difference]: Finished difference Result 655 states and 1096 transitions.
[2023-12-19 06:54:34,337 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-19 06:54:34,337 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 2 states have call successors, (107), 2 states have call predecessors, (107), 4 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108) Word has length 453
[2023-12-19 06:54:34,337 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 06:54:34,340 INFO  L225             Difference]: With dead ends: 655
[2023-12-19 06:54:34,340 INFO  L226             Difference]: Without dead ends: 333
[2023-12-19 06:54:34,341 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 908 GetRequests, 898 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-19 06:54:34,342 INFO  L413           NwaCegarLoop]: 255 mSDtfsCounter, 192 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-19 06:54:34,342 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 618 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-19 06:54:34,343 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 333 states.
[2023-12-19 06:54:34,359 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 327.
[2023-12-19 06:54:34,360 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 327 states, 219 states have (on average 1.538812785388128) internal successors, (337), 220 states have internal predecessors, (337), 104 states have call successors, (104), 3 states have call predecessors, (104), 3 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104)
[2023-12-19 06:54:34,362 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 545 transitions.
[2023-12-19 06:54:34,362 INFO  L78                 Accepts]: Start accepts. Automaton has 327 states and 545 transitions. Word has length 453
[2023-12-19 06:54:34,363 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 06:54:34,363 INFO  L495      AbstractCegarLoop]: Abstraction has 327 states and 545 transitions.
[2023-12-19 06:54:34,363 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 2 states have call successors, (107), 2 states have call predecessors, (107), 4 states have return successors, (108), 2 states have call predecessors, (108), 2 states have call successors, (108)
[2023-12-19 06:54:34,363 INFO  L276                IsEmpty]: Start isEmpty. Operand 327 states and 545 transitions.
[2023-12-19 06:54:34,367 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 454
[2023-12-19 06:54:34,367 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:54:34,367 INFO  L195           NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:54:34,379 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 06:54:34,574 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 06:54:34,577 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:54:34,577 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:54:34,578 INFO  L85        PathProgramCache]: Analyzing trace with hash 133339876, now seen corresponding path program 1 times
[2023-12-19 06:54:34,578 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:54:34,580 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180083496]
[2023-12-19 06:54:34,580 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:54:34,580 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:54:34,641 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 06:54:34,642 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [263744566]
[2023-12-19 06:54:34,642 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:54:34,642 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:54:34,642 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:54:34,643 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 06:54:34,688 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 06:54:34,886 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:54:34,890 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-19 06:54:34,896 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 06:54:35,347 INFO  L134       CoverageAnalysis]: Checked inductivity of 10512 backedges. 358 proven. 213 refuted. 0 times theorem prover too weak. 9941 trivial. 0 not checked.
[2023-12-19 06:54:35,347 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-19 06:54:35,664 INFO  L134       CoverageAnalysis]: Checked inductivity of 10512 backedges. 3 proven. 213 refuted. 0 times theorem prover too weak. 10296 trivial. 0 not checked.
[2023-12-19 06:54:35,664 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 06:54:35,664 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180083496]
[2023-12-19 06:54:35,664 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 06:54:35,664 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263744566]
[2023-12-19 06:54:35,664 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [263744566] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-19 06:54:35,664 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-19 06:54:35,665 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9
[2023-12-19 06:54:35,665 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647917512]
[2023-12-19 06:54:35,665 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-19 06:54:35,665 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-19 06:54:35,666 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 06:54:35,666 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-19 06:54:35,666 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2023-12-19 06:54:35,667 INFO  L87              Difference]: Start difference. First operand 327 states and 545 transitions. Second operand  has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 2 states have call successors, (144), 2 states have call predecessors, (144), 4 states have return successors, (145), 2 states have call predecessors, (145), 2 states have call successors, (145)
[2023-12-19 06:54:36,403 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 06:54:36,403 INFO  L93              Difference]: Finished difference Result 1013 states and 1661 transitions.
[2023-12-19 06:54:36,404 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-19 06:54:36,404 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 2 states have call successors, (144), 2 states have call predecessors, (144), 4 states have return successors, (145), 2 states have call predecessors, (145), 2 states have call successors, (145) Word has length 453
[2023-12-19 06:54:36,405 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 06:54:36,407 INFO  L225             Difference]: With dead ends: 1013
[2023-12-19 06:54:36,407 INFO  L226             Difference]: Without dead ends: 687
[2023-12-19 06:54:36,408 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 918 GetRequests, 895 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462
[2023-12-19 06:54:36,409 INFO  L413           NwaCegarLoop]: 494 mSDtfsCounter, 567 mSDsluCounter, 1427 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-19 06:54:36,409 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 1921 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-19 06:54:36,410 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 687 states.
[2023-12-19 06:54:36,453 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 665.
[2023-12-19 06:54:36,454 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 665 states, 446 states have (on average 1.515695067264574) internal successors, (676), 448 states have internal predecessors, (676), 208 states have call successors, (208), 10 states have call predecessors, (208), 10 states have return successors, (208), 206 states have call predecessors, (208), 208 states have call successors, (208)
[2023-12-19 06:54:36,459 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 1092 transitions.
[2023-12-19 06:54:36,459 INFO  L78                 Accepts]: Start accepts. Automaton has 665 states and 1092 transitions. Word has length 453
[2023-12-19 06:54:36,460 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 06:54:36,460 INFO  L495      AbstractCegarLoop]: Abstraction has 665 states and 1092 transitions.
[2023-12-19 06:54:36,460 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 2 states have call successors, (144), 2 states have call predecessors, (144), 4 states have return successors, (145), 2 states have call predecessors, (145), 2 states have call successors, (145)
[2023-12-19 06:54:36,461 INFO  L276                IsEmpty]: Start isEmpty. Operand 665 states and 1092 transitions.
[2023-12-19 06:54:36,464 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 454
[2023-12-19 06:54:36,464 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:54:36,464 INFO  L195           NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:54:36,473 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 06:54:36,671 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 06:54:36,672 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:54:36,672 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:54:36,672 INFO  L85        PathProgramCache]: Analyzing trace with hash 133399458, now seen corresponding path program 1 times
[2023-12-19 06:54:36,672 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:54:36,673 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677072144]
[2023-12-19 06:54:36,673 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:54:36,673 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:54:36,707 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 06:54:36,707 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766283982]
[2023-12-19 06:54:36,707 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:54:36,708 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:54:36,708 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:54:36,709 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 06:54:36,713 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 06:54:36,928 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:54:36,933 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-19 06:54:36,948 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 06:54:37,758 INFO  L134       CoverageAnalysis]: Checked inductivity of 10512 backedges. 358 proven. 213 refuted. 0 times theorem prover too weak. 9941 trivial. 0 not checked.
[2023-12-19 06:54:37,758 INFO  L327         TraceCheckSpWp]: Computing backward predicates...