/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-52.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-19 08:27:41,279 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-19 08:27:41,357 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 08:27:41,362 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-19 08:27:41,363 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-19 08:27:41,399 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-19 08:27:41,400 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-19 08:27:41,400 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-19 08:27:41,400 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-19 08:27:41,404 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-19 08:27:41,404 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-19 08:27:41,405 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-19 08:27:41,405 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-19 08:27:41,406 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-19 08:27:41,406 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-19 08:27:41,407 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-19 08:27:41,407 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-19 08:27:41,407 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-19 08:27:41,407 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-19 08:27:41,408 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-19 08:27:41,409 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-19 08:27:41,409 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-19 08:27:41,409 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-19 08:27:41,409 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-19 08:27:41,410 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-19 08:27:41,410 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-19 08:27:41,410 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-19 08:27:41,410 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-19 08:27:41,411 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-19 08:27:41,411 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-19 08:27:41,412 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-19 08:27:41,412 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-19 08:27:41,412 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 08:27:41,412 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-19 08:27:41,412 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-19 08:27:41,412 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-19 08:27:41,413 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-19 08:27:41,413 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-19 08:27:41,413 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-19 08:27:41,413 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-19 08:27:41,413 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-19 08:27:41,413 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-19 08:27:41,414 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-19 08:27:41,414 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-19 08:27:41,644 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-19 08:27:41,667 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-19 08:27:41,669 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-19 08:27:41,670 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-19 08:27:41,670 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-19 08:27:41,671 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-52.i
[2023-12-19 08:27:42,854 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-19 08:27:43,048 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-19 08:27:43,049 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-52.i
[2023-12-19 08:27:43,058 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecdd1136f/a456fd24d75a419cbbcd888eda42afae/FLAGf31b0932b
[2023-12-19 08:27:43,074 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecdd1136f/a456fd24d75a419cbbcd888eda42afae
[2023-12-19 08:27:43,076 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-19 08:27:43,079 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-19 08:27:43,081 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-19 08:27:43,081 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-19 08:27:43,086 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-19 08:27:43,086 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 08:27:43" (1/1) ...
[2023-12-19 08:27:43,087 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@455f70f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:27:43, skipping insertion in model container
[2023-12-19 08:27:43,087 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 08:27:43" (1/1) ...
[2023-12-19 08:27:43,128 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-19 08:27:43,272 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-52.i[919,932]
[2023-12-19 08:27:43,341 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 08:27:43,352 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-19 08:27:43,366 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-52.i[919,932]
[2023-12-19 08:27:43,404 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 08:27:43,419 INFO  L206         MainTranslator]: Completed translation
[2023-12-19 08:27:43,420 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:27:43 WrapperNode
[2023-12-19 08:27:43,420 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-19 08:27:43,422 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-19 08:27:43,422 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-19 08:27:43,428 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-19 08:27:43,434 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:27:43" (1/1) ...
[2023-12-19 08:27:43,446 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:27:43" (1/1) ...
[2023-12-19 08:27:43,484 INFO  L138                Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 249
[2023-12-19 08:27:43,484 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-19 08:27:43,485 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-19 08:27:43,485 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-19 08:27:43,485 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-19 08:27:43,499 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:27:43" (1/1) ...
[2023-12-19 08:27:43,500 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:27:43" (1/1) ...
[2023-12-19 08:27:43,504 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:27:43" (1/1) ...
[2023-12-19 08:27:43,519 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 08:27:43,519 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:27:43" (1/1) ...
[2023-12-19 08:27:43,519 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:27:43" (1/1) ...
[2023-12-19 08:27:43,545 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:27:43" (1/1) ...
[2023-12-19 08:27:43,549 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:27:43" (1/1) ...
[2023-12-19 08:27:43,551 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:27:43" (1/1) ...
[2023-12-19 08:27:43,553 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:27:43" (1/1) ...
[2023-12-19 08:27:43,559 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-19 08:27:43,559 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-19 08:27:43,560 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-19 08:27:43,560 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-19 08:27:43,560 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:27:43" (1/1) ...
[2023-12-19 08:27:43,572 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 08:27:43,582 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 08:27:43,593 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 08:27:43,619 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 08:27:43,628 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-19 08:27:43,628 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-19 08:27:43,629 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-19 08:27:43,629 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-19 08:27:43,629 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-19 08:27:43,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-19 08:27:43,750 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-19 08:27:43,755 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-19 08:27:44,173 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-19 08:27:44,210 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-19 08:27:44,210 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-19 08:27:44,211 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 08:27:44 BoogieIcfgContainer
[2023-12-19 08:27:44,211 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-19 08:27:44,213 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-19 08:27:44,213 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-19 08:27:44,216 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-19 08:27:44,216 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 08:27:43" (1/3) ...
[2023-12-19 08:27:44,216 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0b4829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 08:27:44, skipping insertion in model container
[2023-12-19 08:27:44,216 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:27:43" (2/3) ...
[2023-12-19 08:27:44,217 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0b4829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 08:27:44, skipping insertion in model container
[2023-12-19 08:27:44,217 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 08:27:44" (3/3) ...
[2023-12-19 08:27:44,217 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-cn_file-52.i
[2023-12-19 08:27:44,229 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-19 08:27:44,229 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-19 08:27:44,268 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-19 08:27:44,273 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;@7f08c58, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-19 08:27:44,273 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-19 08:27:44,276 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 96 states, 59 states have (on average 1.4915254237288136) internal successors, (88), 60 states have internal predecessors, (88), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-19 08:27:44,288 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 215
[2023-12-19 08:27:44,288 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 08:27:44,289 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:27:44,289 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 08:27:44,316 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 08:27:44,316 INFO  L85        PathProgramCache]: Analyzing trace with hash -611818955, now seen corresponding path program 1 times
[2023-12-19 08:27:44,326 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 08:27:44,326 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154310592]
[2023-12-19 08:27:44,326 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:27:44,327 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 08:27:44,564 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 08:27:44,564 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43486059]
[2023-12-19 08:27:44,565 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:27:44,565 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 08:27:44,565 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 08:27:44,568 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 08:27:44,573 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 08:27:44,765 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 08:27:44,770 INFO  L262         TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-19 08:27:44,788 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 08:27:44,958 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked.
[2023-12-19 08:27:44,958 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 08:27:44,958 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 08:27:44,959 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154310592]
[2023-12-19 08:27:44,959 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 08:27:44,959 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43486059]
[2023-12-19 08:27:44,960 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [43486059] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 08:27:44,960 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 08:27:44,960 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-19 08:27:44,962 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539509702]
[2023-12-19 08:27:44,962 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 08:27:44,967 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-19 08:27:44,968 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 08:27:44,996 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-19 08:27:44,996 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-19 08:27:44,999 INFO  L87              Difference]: Start difference. First operand  has 96 states, 59 states have (on average 1.4915254237288136) internal successors, (88), 60 states have internal predecessors, (88), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-19 08:27:45,191 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 08:27:45,192 INFO  L93              Difference]: Finished difference Result 239 states and 443 transitions.
[2023-12-19 08:27:45,193 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-19 08:27:45,194 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 214
[2023-12-19 08:27:45,196 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 08:27:45,202 INFO  L225             Difference]: With dead ends: 239
[2023-12-19 08:27:45,203 INFO  L226             Difference]: Without dead ends: 144
[2023-12-19 08:27:45,206 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-19 08:27:45,209 INFO  L413           NwaCegarLoop]: 168 mSDtfsCounter, 73 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-19 08:27:45,209 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 429 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-19 08:27:45,223 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 144 states.
[2023-12-19 08:27:45,252 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 141.
[2023-12-19 08:27:45,254 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 141 states, 88 states have (on average 1.4431818181818181) internal successors, (127), 89 states have internal predecessors, (127), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50)
[2023-12-19 08:27:45,256 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 227 transitions.
[2023-12-19 08:27:45,257 INFO  L78                 Accepts]: Start accepts. Automaton has 141 states and 227 transitions. Word has length 214
[2023-12-19 08:27:45,258 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 08:27:45,258 INFO  L495      AbstractCegarLoop]: Abstraction has 141 states and 227 transitions.
[2023-12-19 08:27:45,259 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-19 08:27:45,259 INFO  L276                IsEmpty]: Start isEmpty. Operand 141 states and 227 transitions.
[2023-12-19 08:27:45,262 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 215
[2023-12-19 08:27:45,263 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 08:27:45,263 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:27:45,271 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-12-19 08:27:45,471 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 08:27:45,472 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 08:27:45,472 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 08:27:45,472 INFO  L85        PathProgramCache]: Analyzing trace with hash 89245623, now seen corresponding path program 1 times
[2023-12-19 08:27:45,473 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 08:27:45,473 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573379412]
[2023-12-19 08:27:45,473 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:27:45,473 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 08:27:45,561 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 08:27:45,563 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808129591]
[2023-12-19 08:27:45,564 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:27:45,565 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 08:27:45,565 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 08:27:45,566 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 08:27:45,570 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 08:27:45,720 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 08:27:45,723 INFO  L262         TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-19 08:27:45,734 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 08:27:45,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked.
[2023-12-19 08:27:45,766 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 08:27:45,766 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 08:27:45,766 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573379412]
[2023-12-19 08:27:45,766 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 08:27:45,767 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808129591]
[2023-12-19 08:27:45,767 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [808129591] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 08:27:45,767 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 08:27:45,767 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-19 08:27:45,767 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895580865]
[2023-12-19 08:27:45,768 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 08:27:45,769 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-19 08:27:45,770 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 08:27:45,770 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-19 08:27:45,771 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 08:27:45,771 INFO  L87              Difference]: Start difference. First operand 141 states and 227 transitions. Second operand  has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-19 08:27:45,844 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 08:27:45,844 INFO  L93              Difference]: Finished difference Result 376 states and 603 transitions.
[2023-12-19 08:27:45,845 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-19 08:27:45,845 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 214
[2023-12-19 08:27:45,849 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 08:27:45,856 INFO  L225             Difference]: With dead ends: 376
[2023-12-19 08:27:45,856 INFO  L226             Difference]: Without dead ends: 236
[2023-12-19 08:27:45,860 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 212 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 08:27:45,862 INFO  L413           NwaCegarLoop]: 201 mSDtfsCounter, 70 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 08:27:45,866 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 340 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 08:27:45,868 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 236 states.
[2023-12-19 08:27:45,914 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233.
[2023-12-19 08:27:45,916 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 233 states, 144 states have (on average 1.4236111111111112) internal successors, (205), 147 states have internal predecessors, (205), 84 states have call successors, (84), 4 states have call predecessors, (84), 4 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84)
[2023-12-19 08:27:45,919 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 373 transitions.
[2023-12-19 08:27:45,919 INFO  L78                 Accepts]: Start accepts. Automaton has 233 states and 373 transitions. Word has length 214
[2023-12-19 08:27:45,921 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 08:27:45,922 INFO  L495      AbstractCegarLoop]: Abstraction has 233 states and 373 transitions.
[2023-12-19 08:27:45,922 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-19 08:27:45,922 INFO  L276                IsEmpty]: Start isEmpty. Operand 233 states and 373 transitions.
[2023-12-19 08:27:45,930 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 215
[2023-12-19 08:27:45,930 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 08:27:45,931 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:27:45,938 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 08:27:46,138 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 08:27:46,139 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 08:27:46,139 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 08:27:46,139 INFO  L85        PathProgramCache]: Analyzing trace with hash 347411061, now seen corresponding path program 1 times
[2023-12-19 08:27:46,140 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 08:27:46,140 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103943589]
[2023-12-19 08:27:46,140 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:27:46,140 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 08:27:46,189 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 08:27:46,190 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1254274357]
[2023-12-19 08:27:46,190 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:27:46,190 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 08:27:46,190 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 08:27:46,192 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 08:27:46,211 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 08:27:46,439 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 08:27:46,443 INFO  L262         TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 76 conjunts are in the unsatisfiable core
[2023-12-19 08:27:46,455 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 08:27:50,815 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 550 proven. 483 refuted. 0 times theorem prover too weak. 1211 trivial. 0 not checked.
[2023-12-19 08:27:50,815 INFO  L327         TraceCheckSpWp]: Computing backward predicates...