/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-4.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-19 09:25:41,177 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-19 09:25:41,244 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-19 09:25:41,248 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-19 09:25:41,248 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-19 09:25:41,271 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-19 09:25:41,272 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-19 09:25:41,272 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-19 09:25:41,273 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-19 09:25:41,276 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-19 09:25:41,276 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-19 09:25:41,276 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-19 09:25:41,276 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-19 09:25:41,277 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-19 09:25:41,277 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-19 09:25:41,278 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-19 09:25:41,278 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-19 09:25:41,278 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-19 09:25:41,279 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-19 09:25:41,279 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-19 09:25:41,279 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-19 09:25:41,280 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-19 09:25:41,280 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-19 09:25:41,280 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-19 09:25:41,280 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-19 09:25:41,280 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-19 09:25:41,280 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-19 09:25:41,280 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-19 09:25:41,281 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-19 09:25:41,281 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-19 09:25:41,282 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-19 09:25:41,282 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-19 09:25:41,282 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 09:25:41,282 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-19 09:25:41,282 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-19 09:25:41,282 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-19 09:25:41,282 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-19 09:25:41,283 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-19 09:25:41,283 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-19 09:25:41,283 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-19 09:25:41,283 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-19 09:25:41,283 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-19 09:25:41,283 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-19 09:25:41,283 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-19 09:25:41,478 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-19 09:25:41,507 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-19 09:25:41,509 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-19 09:25:41,510 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-19 09:25:41,510 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-19 09:25:41,511 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-4.i
[2023-12-19 09:25:42,752 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-19 09:25:42,930 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-19 09:25:42,931 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-4.i
[2023-12-19 09:25:42,937 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8129bd67/2b32af8c40274f7ebec82686176bad1d/FLAG58b05819b
[2023-12-19 09:25:42,946 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8129bd67/2b32af8c40274f7ebec82686176bad1d
[2023-12-19 09:25:42,948 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-19 09:25:42,949 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-19 09:25:42,950 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-19 09:25:42,950 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-19 09:25:42,953 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-19 09:25:42,954 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 09:25:42" (1/1) ...
[2023-12-19 09:25:42,954 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b96f8ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:25:42, skipping insertion in model container
[2023-12-19 09:25:42,954 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 09:25:42" (1/1) ...
[2023-12-19 09:25:42,991 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-19 09:25:43,108 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-4.i[918,931]
[2023-12-19 09:25:43,151 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 09:25:43,164 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-19 09:25:43,179 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-4.i[918,931]
[2023-12-19 09:25:43,207 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 09:25:43,219 INFO  L206         MainTranslator]: Completed translation
[2023-12-19 09:25:43,219 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:25:43 WrapperNode
[2023-12-19 09:25:43,220 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-19 09:25:43,220 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-19 09:25:43,220 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-19 09:25:43,220 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-19 09:25:43,225 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:25:43" (1/1) ...
[2023-12-19 09:25:43,234 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:25:43" (1/1) ...
[2023-12-19 09:25:43,277 INFO  L138                Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 237
[2023-12-19 09:25:43,278 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-19 09:25:43,279 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-19 09:25:43,279 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-19 09:25:43,279 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-19 09:25:43,287 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:25:43" (1/1) ...
[2023-12-19 09:25:43,287 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:25:43" (1/1) ...
[2023-12-19 09:25:43,291 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:25:43" (1/1) ...
[2023-12-19 09:25:43,310 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-19 09:25:43,310 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:25:43" (1/1) ...
[2023-12-19 09:25:43,311 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:25:43" (1/1) ...
[2023-12-19 09:25:43,319 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:25:43" (1/1) ...
[2023-12-19 09:25:43,322 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:25:43" (1/1) ...
[2023-12-19 09:25:43,323 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:25:43" (1/1) ...
[2023-12-19 09:25:43,325 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:25:43" (1/1) ...
[2023-12-19 09:25:43,328 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-19 09:25:43,329 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-19 09:25:43,329 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-19 09:25:43,329 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-19 09:25:43,330 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:25:43" (1/1) ...
[2023-12-19 09:25:43,334 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 09:25:43,343 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 09:25:43,359 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-19 09:25:43,383 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-19 09:25:43,383 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-19 09:25:43,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-19 09:25:43,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-19 09:25:43,384 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-19 09:25:43,384 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-19 09:25:43,378 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-19 09:25:43,461 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-19 09:25:43,462 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-19 09:25:43,866 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-19 09:25:43,905 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-19 09:25:43,906 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-19 09:25:43,906 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 09:25:43 BoogieIcfgContainer
[2023-12-19 09:25:43,906 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-19 09:25:43,908 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-19 09:25:43,908 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-19 09:25:43,910 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-19 09:25:43,910 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 09:25:42" (1/3) ...
[2023-12-19 09:25:43,911 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a9a630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 09:25:43, skipping insertion in model container
[2023-12-19 09:25:43,911 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:25:43" (2/3) ...
[2023-12-19 09:25:43,911 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a9a630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 09:25:43, skipping insertion in model container
[2023-12-19 09:25:43,911 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 09:25:43" (3/3) ...
[2023-12-19 09:25:43,912 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-4.i
[2023-12-19 09:25:43,924 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-19 09:25:43,924 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-19 09:25:43,955 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-19 09:25:43,960 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;@2737831e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-19 09:25:43,960 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-19 09:25:43,963 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 96 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 60 states have internal predecessors, (89), 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 09:25:43,975 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 213
[2023-12-19 09:25:43,975 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 09:25:43,976 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]
[2023-12-19 09:25:43,976 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 09:25:43,980 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 09:25:43,980 INFO  L85        PathProgramCache]: Analyzing trace with hash 427305059, now seen corresponding path program 1 times
[2023-12-19 09:25:43,986 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 09:25:43,987 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566516978]
[2023-12-19 09:25:43,987 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:25:43,987 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 09:25:44,178 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 09:25:44,312 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 09:25:44,313 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566516978]
[2023-12-19 09:25:44,313 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-19 09:25:44,314 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260538519]
[2023-12-19 09:25:44,314 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:25:44,314 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 09:25:44,314 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 09:25:44,317 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 09:25:44,376 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-19 09:25:44,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 09:25:44,559 INFO  L262         TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-19 09:25:44,575 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 09:25:44,623 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked.
[2023-12-19 09:25:44,624 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 09:25:44,624 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260538519] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 09:25:44,624 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 09:25:44,625 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-19 09:25:44,626 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358607240]
[2023-12-19 09:25:44,627 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 09:25:44,630 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-19 09:25:44,630 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 09:25:44,647 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-19 09:25:44,647 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-19 09:25:44,649 INFO  L87              Difference]: Start difference. First operand  has 96 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 60 states have internal predecessors, (89), 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 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34)
[2023-12-19 09:25:44,701 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 09:25:44,702 INFO  L93              Difference]: Finished difference Result 189 states and 346 transitions.
[2023-12-19 09:25:44,703 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-19 09:25:44,704 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 212
[2023-12-19 09:25:44,704 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 09:25:44,710 INFO  L225             Difference]: With dead ends: 189
[2023-12-19 09:25:44,710 INFO  L226             Difference]: Without dead ends: 94
[2023-12-19 09:25:44,716 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-19 09:25:44,719 INFO  L413           NwaCegarLoop]: 148 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, 148 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 09:25:44,720 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 09:25:44,731 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2023-12-19 09:25:44,756 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94.
[2023-12-19 09:25:44,757 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 94 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 58 states have internal predecessors, (83), 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 09:25:44,761 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 151 transitions.
[2023-12-19 09:25:44,762 INFO  L78                 Accepts]: Start accepts. Automaton has 94 states and 151 transitions. Word has length 212
[2023-12-19 09:25:44,762 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 09:25:44,762 INFO  L495      AbstractCegarLoop]: Abstraction has 94 states and 151 transitions.
[2023-12-19 09:25:44,763 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34)
[2023-12-19 09:25:44,763 INFO  L276                IsEmpty]: Start isEmpty. Operand 94 states and 151 transitions.
[2023-12-19 09:25:44,772 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 214
[2023-12-19 09:25:44,772 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 09:25:44,773 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]
[2023-12-19 09:25:44,780 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 09:25:44,978 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-12-19 09:25:44,979 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 09:25:44,980 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 09:25:44,980 INFO  L85        PathProgramCache]: Analyzing trace with hash 1270476996, now seen corresponding path program 1 times
[2023-12-19 09:25:44,980 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 09:25:44,980 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053347518]
[2023-12-19 09:25:44,980 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:25:44,981 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 09:25:45,026 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 09:25:45,027 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513236266]
[2023-12-19 09:25:45,027 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:25:45,027 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 09:25:45,027 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 09:25:45,028 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 09:25:45,056 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-19 09:25:45,279 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 09:25:45,281 INFO  L262         TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-19 09:25:45,287 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 09:25:45,404 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 09:25:45,404 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 09:25:45,405 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 09:25:45,405 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053347518]
[2023-12-19 09:25:45,405 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 09:25:45,405 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513236266]
[2023-12-19 09:25:45,405 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [513236266] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 09:25:45,405 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 09:25:45,405 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-19 09:25:45,405 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035444293]
[2023-12-19 09:25:45,406 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 09:25:45,406 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-19 09:25:45,406 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 09:25:45,407 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-19 09:25:45,407 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 09:25:45,407 INFO  L87              Difference]: Start difference. First operand 94 states and 151 transitions. Second operand  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 09:25:45,471 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 09:25:45,471 INFO  L93              Difference]: Finished difference Result 278 states and 447 transitions.
[2023-12-19 09:25:45,471 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-19 09:25:45,472 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 213
[2023-12-19 09:25:45,472 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 09:25:45,474 INFO  L225             Difference]: With dead ends: 278
[2023-12-19 09:25:45,474 INFO  L226             Difference]: Without dead ends: 185
[2023-12-19 09:25:45,475 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 09:25:45,476 INFO  L413           NwaCegarLoop]: 238 mSDtfsCounter, 135 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 09:25:45,476 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 372 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 09:25:45,477 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 185 states.
[2023-12-19 09:25:45,491 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 183.
[2023-12-19 09:25:45,492 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 183 states, 112 states have (on average 1.4017857142857142) internal successors, (157), 112 states have internal predecessors, (157), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68)
[2023-12-19 09:25:45,493 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 293 transitions.
[2023-12-19 09:25:45,494 INFO  L78                 Accepts]: Start accepts. Automaton has 183 states and 293 transitions. Word has length 213
[2023-12-19 09:25:45,494 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 09:25:45,494 INFO  L495      AbstractCegarLoop]: Abstraction has 183 states and 293 transitions.
[2023-12-19 09:25:45,495 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 09:25:45,495 INFO  L276                IsEmpty]: Start isEmpty. Operand 183 states and 293 transitions.
[2023-12-19 09:25:45,496 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 215
[2023-12-19 09:25:45,496 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 09:25:45,496 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 09:25:45,513 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2023-12-19 09:25:45,712 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-12-19 09:25:45,713 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 09:25:45,713 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 09:25:45,714 INFO  L85        PathProgramCache]: Analyzing trace with hash 1466374814, now seen corresponding path program 1 times
[2023-12-19 09:25:45,714 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 09:25:45,714 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236731415]
[2023-12-19 09:25:45,714 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:25:45,714 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 09:25:45,820 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 09:25:45,821 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1921708696]
[2023-12-19 09:25:45,821 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:25:45,821 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 09:25:45,821 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 09:25:45,823 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 09:25:45,836 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-19 09:25:46,032 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 09:25:46,035 INFO  L262         TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-19 09:25:46,044 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 09:25:46,384 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 163 proven. 96 refuted. 0 times theorem prover too weak. 1985 trivial. 0 not checked.
[2023-12-19 09:25:46,385 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-19 09:25:46,676 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 3 proven. 96 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked.
[2023-12-19 09:25:46,676 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 09:25:46,676 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236731415]
[2023-12-19 09:25:46,676 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 09:25:46,676 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921708696]
[2023-12-19 09:25:46,676 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921708696] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-19 09:25:46,677 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-19 09:25:46,677 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9
[2023-12-19 09:25:46,677 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426424859]
[2023-12-19 09:25:46,677 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-19 09:25:46,678 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-19 09:25:46,678 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 09:25:46,679 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-19 09:25:46,679 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2023-12-19 09:25:46,679 INFO  L87              Difference]: Start difference. First operand 183 states and 293 transitions. Second operand  has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67)
[2023-12-19 09:25:47,168 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 09:25:47,168 INFO  L93              Difference]: Finished difference Result 575 states and 898 transitions.
[2023-12-19 09:25:47,169 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2023-12-19 09:25:47,169 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 214
[2023-12-19 09:25:47,170 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 09:25:47,172 INFO  L225             Difference]: With dead ends: 575
[2023-12-19 09:25:47,172 INFO  L226             Difference]: Without dead ends: 393
[2023-12-19 09:25:47,173 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 417 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462
[2023-12-19 09:25:47,173 INFO  L413           NwaCegarLoop]: 190 mSDtfsCounter, 249 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-19 09:25:47,174 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 703 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-19 09:25:47,175 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 393 states.
[2023-12-19 09:25:47,206 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 375.
[2023-12-19 09:25:47,207 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 375 states, 230 states have (on average 1.3521739130434782) internal successors, (311), 230 states have internal predecessors, (311), 136 states have call successors, (136), 8 states have call predecessors, (136), 8 states have return successors, (136), 136 states have call predecessors, (136), 136 states have call successors, (136)
[2023-12-19 09:25:47,208 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 583 transitions.
[2023-12-19 09:25:47,209 INFO  L78                 Accepts]: Start accepts. Automaton has 375 states and 583 transitions. Word has length 214
[2023-12-19 09:25:47,209 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 09:25:47,209 INFO  L495      AbstractCegarLoop]: Abstraction has 375 states and 583 transitions.
[2023-12-19 09:25:47,209 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67)
[2023-12-19 09:25:47,210 INFO  L276                IsEmpty]: Start isEmpty. Operand 375 states and 583 transitions.
[2023-12-19 09:25:47,211 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 215
[2023-12-19 09:25:47,211 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 09:25:47,211 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 09:25:47,229 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-12-19 09:25:47,418 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 09:25:47,420 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 09:25:47,420 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 09:25:47,421 INFO  L85        PathProgramCache]: Analyzing trace with hash 1523633116, now seen corresponding path program 1 times
[2023-12-19 09:25:47,421 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 09:25:47,423 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942593315]
[2023-12-19 09:25:47,424 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:25:47,424 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 09:25:47,475 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 09:25:47,475 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1202160337]
[2023-12-19 09:25:47,475 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:25:47,475 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 09:25:47,475 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 09:25:47,492 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 09:25:47,493 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-19 09:25:47,617 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 09:25:47,619 INFO  L262         TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-19 09:25:47,622 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 09:25:47,793 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 09:25:47,794 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 09:25:47,794 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 09:25:47,795 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942593315]
[2023-12-19 09:25:47,796 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 09:25:47,796 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202160337]
[2023-12-19 09:25:47,796 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202160337] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 09:25:47,796 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 09:25:47,796 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-19 09:25:47,796 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297734253]
[2023-12-19 09:25:47,796 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 09:25:47,797 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-19 09:25:47,797 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 09:25:47,797 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-19 09:25:47,798 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 09:25:47,798 INFO  L87              Difference]: Start difference. First operand 375 states and 583 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 09:25:47,870 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 09:25:47,870 INFO  L93              Difference]: Finished difference Result 949 states and 1477 transitions.
[2023-12-19 09:25:47,870 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-19 09:25:47,871 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 09:25:47,871 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 09:25:47,874 INFO  L225             Difference]: With dead ends: 949
[2023-12-19 09:25:47,874 INFO  L226             Difference]: Without dead ends: 563
[2023-12-19 09:25:47,875 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 09:25:47,878 INFO  L413           NwaCegarLoop]: 154 mSDtfsCounter, 40 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 09:25:47,879 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 293 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 09:25:47,882 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 563 states.
[2023-12-19 09:25:47,931 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 561.
[2023-12-19 09:25:47,934 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 561 states, 344 states have (on average 1.3430232558139534) internal successors, (462), 344 states have internal predecessors, (462), 204 states have call successors, (204), 12 states have call predecessors, (204), 12 states have return successors, (204), 204 states have call predecessors, (204), 204 states have call successors, (204)
[2023-12-19 09:25:47,937 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 870 transitions.
[2023-12-19 09:25:47,938 INFO  L78                 Accepts]: Start accepts. Automaton has 561 states and 870 transitions. Word has length 214
[2023-12-19 09:25:47,939 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 09:25:47,939 INFO  L495      AbstractCegarLoop]: Abstraction has 561 states and 870 transitions.
[2023-12-19 09:25:47,939 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 09:25:47,939 INFO  L276                IsEmpty]: Start isEmpty. Operand 561 states and 870 transitions.
[2023-12-19 09:25:47,941 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 215
[2023-12-19 09:25:47,941 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 09:25:47,941 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 09:25:47,962 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-12-19 09:25:48,148 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 09:25:48,149 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 09:25:48,149 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 09:25:48,150 INFO  L85        PathProgramCache]: Analyzing trace with hash -642628085, now seen corresponding path program 1 times
[2023-12-19 09:25:48,150 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 09:25:48,150 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805815768]
[2023-12-19 09:25:48,150 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:25:48,150 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 09:25:48,190 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 09:25:48,190 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [65562262]
[2023-12-19 09:25:48,190 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 09:25:48,190 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 09:25:48,190 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 09:25:48,208 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 09:25:48,235 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-12-19 09:25:48,335 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 09:25:48,337 INFO  L262         TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 24 conjunts are in the unsatisfiable core
[2023-12-19 09:25:48,342 INFO  L285         TraceCheckSpWp]: Computing forward predicates...