/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_codestructure_steplocals_file-31.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-19 05:57:43,146 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-19 05:57:43,223 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 05:57:43,228 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-19 05:57:43,228 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-19 05:57:43,250 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-19 05:57:43,250 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-19 05:57:43,250 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-19 05:57:43,251 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-19 05:57:43,254 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-19 05:57:43,254 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-19 05:57:43,255 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-19 05:57:43,255 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-19 05:57:43,256 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-19 05:57:43,256 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-19 05:57:43,256 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-19 05:57:43,256 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-19 05:57:43,257 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-19 05:57:43,257 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-19 05:57:43,257 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-19 05:57:43,257 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-19 05:57:43,257 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-19 05:57:43,258 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-19 05:57:43,258 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-19 05:57:43,258 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-19 05:57:43,258 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-19 05:57:43,258 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-19 05:57:43,258 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-19 05:57:43,259 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-19 05:57:43,259 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-19 05:57:43,260 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-19 05:57:43,260 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-19 05:57:43,260 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 05:57:43,260 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-19 05:57:43,260 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-19 05:57:43,260 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-19 05:57:43,260 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-19 05:57:43,260 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-19 05:57:43,260 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-19 05:57:43,261 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-19 05:57:43,261 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-19 05:57:43,261 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-19 05:57:43,261 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-19 05:57:43,261 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-19 05:57:43,447 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-19 05:57:43,471 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-19 05:57:43,473 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-19 05:57:43,474 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-19 05:57:43,474 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-19 05:57:43,475 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_steplocals_file-31.i
[2023-12-19 05:57:44,584 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-19 05:57:44,764 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-19 05:57:44,764 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_steplocals_file-31.i
[2023-12-19 05:57:44,770 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0dc47e0f/0d21a1dad55f4c9bbfc385680fea7a92/FLAG802529156
[2023-12-19 05:57:44,780 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0dc47e0f/0d21a1dad55f4c9bbfc385680fea7a92
[2023-12-19 05:57:44,782 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-19 05:57:44,783 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-19 05:57:44,792 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-19 05:57:44,792 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-19 05:57:44,796 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-19 05:57:44,797 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:57:44" (1/1) ...
[2023-12-19 05:57:44,797 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce44049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:44, skipping insertion in model container
[2023-12-19 05:57:44,798 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:57:44" (1/1) ...
[2023-12-19 05:57:44,828 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-19 05:57:44,950 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_codestructure_steplocals_file-31.i[917,930]
[2023-12-19 05:57:45,019 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 05:57:45,028 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-19 05:57:45,039 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_codestructure_steplocals_file-31.i[917,930]
[2023-12-19 05:57:45,059 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 05:57:45,070 INFO  L206         MainTranslator]: Completed translation
[2023-12-19 05:57:45,071 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:45 WrapperNode
[2023-12-19 05:57:45,071 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-19 05:57:45,072 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-19 05:57:45,072 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-19 05:57:45,072 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-19 05:57:45,077 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:45" (1/1) ...
[2023-12-19 05:57:45,084 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:45" (1/1) ...
[2023-12-19 05:57:45,128 INFO  L138                Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 151
[2023-12-19 05:57:45,129 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-19 05:57:45,129 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-19 05:57:45,129 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-19 05:57:45,130 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-19 05:57:45,145 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:45" (1/1) ...
[2023-12-19 05:57:45,145 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:45" (1/1) ...
[2023-12-19 05:57:45,148 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:45" (1/1) ...
[2023-12-19 05:57:45,170 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 05:57:45,170 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:45" (1/1) ...
[2023-12-19 05:57:45,170 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:45" (1/1) ...
[2023-12-19 05:57:45,176 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:45" (1/1) ...
[2023-12-19 05:57:45,179 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:45" (1/1) ...
[2023-12-19 05:57:45,180 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:45" (1/1) ...
[2023-12-19 05:57:45,182 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:45" (1/1) ...
[2023-12-19 05:57:45,185 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-19 05:57:45,186 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-19 05:57:45,186 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-19 05:57:45,186 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-19 05:57:45,187 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:45" (1/1) ...
[2023-12-19 05:57:45,205 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 05:57:45,213 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 05:57:45,223 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 05:57:45,258 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 05:57:45,274 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-19 05:57:45,275 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-19 05:57:45,275 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-19 05:57:45,276 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-19 05:57:45,276 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-19 05:57:45,276 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-19 05:57:45,376 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-19 05:57:45,378 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-19 05:57:45,690 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-19 05:57:45,725 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-19 05:57:45,725 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-19 05:57:45,726 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:57:45 BoogieIcfgContainer
[2023-12-19 05:57:45,726 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-19 05:57:45,727 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-19 05:57:45,727 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-19 05:57:45,730 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-19 05:57:45,730 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:57:44" (1/3) ...
[2023-12-19 05:57:45,730 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4088fa4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:57:45, skipping insertion in model container
[2023-12-19 05:57:45,730 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:45" (2/3) ...
[2023-12-19 05:57:45,730 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4088fa4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:57:45, skipping insertion in model container
[2023-12-19 05:57:45,731 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:57:45" (3/3) ...
[2023-12-19 05:57:45,731 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-31.i
[2023-12-19 05:57:45,747 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-19 05:57:45,747 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-19 05:57:45,796 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-19 05:57:45,802 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;@6fda5c2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-19 05:57:45,802 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-19 05:57:45,806 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 64 states, 35 states have (on average 1.4) internal successors, (49), 36 states have internal predecessors, (49), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-19 05:57:45,817 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2023-12-19 05:57:45,817 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 05:57:45,818 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:57:45,819 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 05:57:45,824 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 05:57:45,824 INFO  L85        PathProgramCache]: Analyzing trace with hash -1106142530, now seen corresponding path program 1 times
[2023-12-19 05:57:45,831 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 05:57:45,832 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655818033]
[2023-12-19 05:57:45,832 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 05:57:45,832 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 05:57:45,943 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 05:57:46,014 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 05:57:46,015 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655818033]
[2023-12-19 05:57:46,015 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-19 05:57:46,015 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155588199]
[2023-12-19 05:57:46,015 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 05:57:46,016 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 05:57:46,017 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 05:57:46,024 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 05:57:46,054 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 05:57:46,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 05:57:46,150 INFO  L262         TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-19 05:57:46,160 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 05:57:46,209 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked.
[2023-12-19 05:57:46,209 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 05:57:46,209 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155588199] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 05:57:46,210 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 05:57:46,210 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-19 05:57:46,211 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47645637]
[2023-12-19 05:57:46,213 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 05:57:46,216 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-19 05:57:46,216 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 05:57:46,246 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-19 05:57:46,246 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-19 05:57:46,248 INFO  L87              Difference]: Start difference. First operand  has 64 states, 35 states have (on average 1.4) internal successors, (49), 36 states have internal predecessors, (49), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-19 05:57:46,285 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 05:57:46,285 INFO  L93              Difference]: Finished difference Result 125 states and 226 transitions.
[2023-12-19 05:57:46,286 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-19 05:57:46,288 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 156
[2023-12-19 05:57:46,288 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 05:57:46,294 INFO  L225             Difference]: With dead ends: 125
[2023-12-19 05:57:46,294 INFO  L226             Difference]: Without dead ends: 62
[2023-12-19 05:57:46,297 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 155 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 05:57:46,300 INFO  L413           NwaCegarLoop]: 93 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, 93 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 05:57:46,301 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 05:57:46,312 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2023-12-19 05:57:46,331 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2023-12-19 05:57:46,332 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 62 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-19 05:57:46,333 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 96 transitions.
[2023-12-19 05:57:46,334 INFO  L78                 Accepts]: Start accepts. Automaton has 62 states and 96 transitions. Word has length 156
[2023-12-19 05:57:46,334 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 05:57:46,334 INFO  L495      AbstractCegarLoop]: Abstraction has 62 states and 96 transitions.
[2023-12-19 05:57:46,335 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26)
[2023-12-19 05:57:46,335 INFO  L276                IsEmpty]: Start isEmpty. Operand 62 states and 96 transitions.
[2023-12-19 05:57:46,339 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2023-12-19 05:57:46,340 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 05:57:46,340 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:57:46,347 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 05:57:46,547 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 05:57:46,547 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 05:57:46,548 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 05:57:46,548 INFO  L85        PathProgramCache]: Analyzing trace with hash 29871102, now seen corresponding path program 1 times
[2023-12-19 05:57:46,548 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 05:57:46,548 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371946173]
[2023-12-19 05:57:46,548 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 05:57:46,548 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 05:57:46,586 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 05:57:46,590 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [701247856]
[2023-12-19 05:57:46,590 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 05:57:46,591 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 05:57:46,591 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 05:57:46,606 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 05:57:46,619 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 05:57:46,718 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 05:57:46,720 INFO  L262         TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-19 05:57:46,724 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 05:57:46,797 INFO  L134       CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked.
[2023-12-19 05:57:46,798 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 05:57:46,798 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 05:57:46,798 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371946173]
[2023-12-19 05:57:46,798 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 05:57:46,798 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701247856]
[2023-12-19 05:57:46,798 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [701247856] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 05:57:46,798 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 05:57:46,799 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-19 05:57:46,799 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026186404]
[2023-12-19 05:57:46,799 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 05:57:46,800 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-19 05:57:46,800 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 05:57:46,800 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-19 05:57:46,800 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-19 05:57:46,801 INFO  L87              Difference]: Start difference. First operand 62 states and 96 transitions. Second operand  has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2023-12-19 05:57:46,861 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 05:57:46,861 INFO  L93              Difference]: Finished difference Result 144 states and 222 transitions.
[2023-12-19 05:57:46,862 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-19 05:57:46,862 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 156
[2023-12-19 05:57:46,865 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 05:57:46,866 INFO  L225             Difference]: With dead ends: 144
[2023-12-19 05:57:46,866 INFO  L226             Difference]: Without dead ends: 83
[2023-12-19 05:57:46,867 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-19 05:57:46,868 INFO  L413           NwaCegarLoop]: 99 mSDtfsCounter, 34 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 05:57:46,868 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 281 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 05:57:46,870 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 83 states.
[2023-12-19 05:57:46,882 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 69.
[2023-12-19 05:57:46,883 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 69 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 41 states have internal predecessors, (54), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26)
[2023-12-19 05:57:46,884 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 106 transitions.
[2023-12-19 05:57:46,884 INFO  L78                 Accepts]: Start accepts. Automaton has 69 states and 106 transitions. Word has length 156
[2023-12-19 05:57:46,885 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 05:57:46,885 INFO  L495      AbstractCegarLoop]: Abstraction has 69 states and 106 transitions.
[2023-12-19 05:57:46,885 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26)
[2023-12-19 05:57:46,886 INFO  L276                IsEmpty]: Start isEmpty. Operand 69 states and 106 transitions.
[2023-12-19 05:57:46,887 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2023-12-19 05:57:46,887 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 05:57:46,887 INFO  L195           NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:57:46,897 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 05:57:47,096 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 05:57:47,097 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 05:57:47,097 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 05:57:47,097 INFO  L85        PathProgramCache]: Analyzing trace with hash 730935680, now seen corresponding path program 1 times
[2023-12-19 05:57:47,097 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 05:57:47,097 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809802461]
[2023-12-19 05:57:47,098 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 05:57:47,098 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 05:57:47,132 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 05:57:47,132 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1422184315]
[2023-12-19 05:57:47,133 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 05:57:47,133 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 05:57:47,133 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 05:57:47,145 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 05:57:47,146 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 05:57:47,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 05:57:47,319 INFO  L262         TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 48 conjunts are in the unsatisfiable core
[2023-12-19 05:57:47,325 INFO  L285         TraceCheckSpWp]: Computing forward predicates...