/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-19 06:34:22,685 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-19 06:34:22,761 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-19 06:34:22,766 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-19 06:34:22,766 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-19 06:34:22,792 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-19 06:34:22,792 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-19 06:34:22,793 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-19 06:34:22,793 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-19 06:34:22,796 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-19 06:34:22,797 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-19 06:34:22,797 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-19 06:34:22,798 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-19 06:34:22,799 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-19 06:34:22,799 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-19 06:34:22,799 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-19 06:34:22,799 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-19 06:34:22,799 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-19 06:34:22,799 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-19 06:34:22,800 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-19 06:34:22,800 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-19 06:34:22,800 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-19 06:34:22,800 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-19 06:34:22,800 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-19 06:34:22,801 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-19 06:34:22,801 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-19 06:34:22,801 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-19 06:34:22,801 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-19 06:34:22,802 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-19 06:34:22,802 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-19 06:34:22,802 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-19 06:34:22,803 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-19 06:34:22,803 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 06:34:22,803 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-19 06:34:22,803 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-19 06:34:22,803 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-19 06:34:22,803 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-19 06:34:22,803 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-19 06:34:22,803 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-19 06:34:22,804 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-19 06:34:22,804 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-19 06:34:22,804 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-19 06:34:22,804 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-19 06:34:22,804 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-19 06:34:23,037 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-19 06:34:23,062 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-19 06:34:23,064 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-19 06:34:23,065 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-19 06:34:23,065 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-19 06:34:23,066 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i
[2023-12-19 06:34:24,281 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-19 06:34:24,477 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-19 06:34:24,478 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i
[2023-12-19 06:34:24,488 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ab55f4b3/8522982218ae476b8ae1a0eab7b3e580/FLAGb612fa2b8
[2023-12-19 06:34:24,503 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ab55f4b3/8522982218ae476b8ae1a0eab7b3e580
[2023-12-19 06:34:24,505 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-19 06:34:24,506 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-19 06:34:24,508 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-19 06:34:24,508 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-19 06:34:24,512 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-19 06:34:24,512 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:34:24" (1/1) ...
[2023-12-19 06:34:24,514 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8fc84c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:24, skipping insertion in model container
[2023-12-19 06:34:24,514 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:34:24" (1/1) ...
[2023-12-19 06:34:24,544 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-19 06:34:24,658 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i[915,928]
[2023-12-19 06:34:24,705 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 06:34:24,717 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-19 06:34:24,727 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i[915,928]
[2023-12-19 06:34:24,751 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 06:34:24,763 INFO  L206         MainTranslator]: Completed translation
[2023-12-19 06:34:24,764 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:24 WrapperNode
[2023-12-19 06:34:24,764 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-19 06:34:24,766 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-19 06:34:24,766 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-19 06:34:24,766 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-19 06:34:24,771 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:24" (1/1) ...
[2023-12-19 06:34:24,779 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:24" (1/1) ...
[2023-12-19 06:34:24,821 INFO  L138                Inliner]: procedures = 26, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 167
[2023-12-19 06:34:24,822 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-19 06:34:24,822 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-19 06:34:24,822 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-19 06:34:24,822 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-19 06:34:24,838 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:24" (1/1) ...
[2023-12-19 06:34:24,838 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:24" (1/1) ...
[2023-12-19 06:34:24,841 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:24" (1/1) ...
[2023-12-19 06:34:24,866 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-19 06:34:24,867 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:24" (1/1) ...
[2023-12-19 06:34:24,867 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:24" (1/1) ...
[2023-12-19 06:34:24,898 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:24" (1/1) ...
[2023-12-19 06:34:24,901 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:24" (1/1) ...
[2023-12-19 06:34:24,902 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:24" (1/1) ...
[2023-12-19 06:34:24,903 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:24" (1/1) ...
[2023-12-19 06:34:24,926 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-19 06:34:24,927 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-19 06:34:24,927 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-19 06:34:24,928 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-19 06:34:24,928 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:24" (1/1) ...
[2023-12-19 06:34:24,948 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 06:34:24,957 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:34:24,991 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-19 06:34:25,029 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-19 06:34:25,044 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-19 06:34:25,045 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-19 06:34:25,045 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-19 06:34:25,045 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-19 06:34:25,045 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-19 06:34:25,045 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-19 06:34:25,103 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-19 06:34:25,105 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-19 06:34:25,316 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-19 06:34:25,398 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-19 06:34:25,398 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-19 06:34:25,398 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:34:25 BoogieIcfgContainer
[2023-12-19 06:34:25,399 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-19 06:34:25,424 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-19 06:34:25,425 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-19 06:34:25,427 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-19 06:34:25,427 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 06:34:24" (1/3) ...
[2023-12-19 06:34:25,429 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751cd26a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 06:34:25, skipping insertion in model container
[2023-12-19 06:34:25,429 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:24" (2/3) ...
[2023-12-19 06:34:25,429 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751cd26a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 06:34:25, skipping insertion in model container
[2023-12-19 06:34:25,429 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:34:25" (3/3) ...
[2023-12-19 06:34:25,430 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-45.i
[2023-12-19 06:34:25,453 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-19 06:34:25,453 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-19 06:34:25,515 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-19 06:34:25,520 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;@34ee7b20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-19 06:34:25,521 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-19 06:34:25,525 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 65 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25)
[2023-12-19 06:34:25,540 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2023-12-19 06:34:25,540 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:34:25,541 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 06:34:25,542 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:34:25,546 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:34:25,547 INFO  L85        PathProgramCache]: Analyzing trace with hash 1253278939, now seen corresponding path program 1 times
[2023-12-19 06:34:25,554 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:34:25,554 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94867691]
[2023-12-19 06:34:25,554 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:34:25,555 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:34:25,733 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 06:34:25,734 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [600433178]
[2023-12-19 06:34:25,734 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:34:25,734 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:34:25,734 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:34:25,738 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 06:34:25,753 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-19 06:34:25,892 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:34:25,897 INFO  L262         TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-19 06:34:25,910 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 06:34:25,987 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked.
[2023-12-19 06:34:25,988 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 06:34:25,988 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 06:34:25,988 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94867691]
[2023-12-19 06:34:25,988 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 06:34:25,988 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600433178]
[2023-12-19 06:34:25,989 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [600433178] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 06:34:25,989 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 06:34:25,989 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-19 06:34:25,990 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405848433]
[2023-12-19 06:34:25,991 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 06:34:25,994 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-19 06:34:25,995 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 06:34:26,017 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-19 06:34:26,018 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 06:34:26,020 INFO  L87              Difference]: Start difference. First operand  has 65 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand  has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2023-12-19 06:34:26,078 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 06:34:26,078 INFO  L93              Difference]: Finished difference Result 186 states and 346 transitions.
[2023-12-19 06:34:26,080 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-19 06:34:26,081 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 153
[2023-12-19 06:34:26,082 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 06:34:26,087 INFO  L225             Difference]: With dead ends: 186
[2023-12-19 06:34:26,088 INFO  L226             Difference]: Without dead ends: 122
[2023-12-19 06:34:26,090 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 06:34:26,093 INFO  L413           NwaCegarLoop]: 90 mSDtfsCounter, 86 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 06:34:26,093 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 173 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 06:34:26,104 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 122 states.
[2023-12-19 06:34:26,132 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120.
[2023-12-19 06:34:26,134 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 120 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 67 states have internal predecessors, (83), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50)
[2023-12-19 06:34:26,136 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 183 transitions.
[2023-12-19 06:34:26,137 INFO  L78                 Accepts]: Start accepts. Automaton has 120 states and 183 transitions. Word has length 153
[2023-12-19 06:34:26,138 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 06:34:26,138 INFO  L495      AbstractCegarLoop]: Abstraction has 120 states and 183 transitions.
[2023-12-19 06:34:26,138 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2023-12-19 06:34:26,139 INFO  L276                IsEmpty]: Start isEmpty. Operand 120 states and 183 transitions.
[2023-12-19 06:34:26,141 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2023-12-19 06:34:26,142 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:34:26,142 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 06:34:26,151 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 06:34:26,349 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-12-19 06:34:26,349 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:34:26,349 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:34:26,350 INFO  L85        PathProgramCache]: Analyzing trace with hash 181465565, now seen corresponding path program 1 times
[2023-12-19 06:34:26,350 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:34:26,350 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49412046]
[2023-12-19 06:34:26,350 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:34:26,350 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:34:26,409 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 06:34:26,410 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [80118729]
[2023-12-19 06:34:26,410 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:34:26,410 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:34:26,410 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:34:26,411 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 06:34:26,435 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-19 06:34:26,532 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:34:26,534 INFO  L262         TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-19 06:34:26,550 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 06:34:28,068 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked.
[2023-12-19 06:34:28,069 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 06:34:28,069 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 06:34:28,069 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49412046]
[2023-12-19 06:34:28,069 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 06:34:28,069 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80118729]
[2023-12-19 06:34:28,069 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [80118729] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 06:34:28,069 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 06:34:28,070 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-19 06:34:28,070 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153925672]
[2023-12-19 06:34:28,070 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 06:34:28,072 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-19 06:34:28,072 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 06:34:28,074 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-19 06:34:28,074 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-19 06:34:28,074 INFO  L87              Difference]: Start difference. First operand 120 states and 183 transitions. Second operand  has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2023-12-19 06:34:28,455 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 06:34:28,455 INFO  L93              Difference]: Finished difference Result 304 states and 457 transitions.
[2023-12-19 06:34:28,456 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-19 06:34:28,456 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 154
[2023-12-19 06:34:28,458 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 06:34:28,462 INFO  L225             Difference]: With dead ends: 304
[2023-12-19 06:34:28,462 INFO  L226             Difference]: Without dead ends: 185
[2023-12-19 06:34:28,466 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-19 06:34:28,468 INFO  L413           NwaCegarLoop]: 103 mSDtfsCounter, 145 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-19 06:34:28,470 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 163 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-19 06:34:28,473 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 185 states.
[2023-12-19 06:34:28,509 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 181.
[2023-12-19 06:34:28,511 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 181 states, 110 states have (on average 1.2545454545454546) internal successors, (138), 112 states have internal predecessors, (138), 66 states have call successors, (66), 4 states have call predecessors, (66), 4 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66)
[2023-12-19 06:34:28,515 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 270 transitions.
[2023-12-19 06:34:28,515 INFO  L78                 Accepts]: Start accepts. Automaton has 181 states and 270 transitions. Word has length 154
[2023-12-19 06:34:28,517 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 06:34:28,517 INFO  L495      AbstractCegarLoop]: Abstraction has 181 states and 270 transitions.
[2023-12-19 06:34:28,517 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25)
[2023-12-19 06:34:28,517 INFO  L276                IsEmpty]: Start isEmpty. Operand 181 states and 270 transitions.
[2023-12-19 06:34:28,523 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2023-12-19 06:34:28,523 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:34:28,524 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 06:34:28,548 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 06:34:28,731 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-12-19 06:34:28,731 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:34:28,732 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:34:28,732 INFO  L85        PathProgramCache]: Analyzing trace with hash -560820525, now seen corresponding path program 1 times
[2023-12-19 06:34:28,732 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:34:28,732 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804148649]
[2023-12-19 06:34:28,733 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:34:28,733 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:34:28,785 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 06:34:28,786 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1574531295]
[2023-12-19 06:34:28,786 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:34:28,786 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:34:28,786 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:34:28,791 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 06:34:28,814 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-19 06:34:28,902 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:34:28,905 INFO  L262         TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-19 06:34:28,908 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 06:34:29,012 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 612 proven. 30 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked.
[2023-12-19 06:34:29,013 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-19 06:34:29,156 INFO  L134       CoverageAnalysis]: Checked inductivity of 1200 backedges. 42 proven. 30 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked.
[2023-12-19 06:34:29,156 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 06:34:29,156 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804148649]
[2023-12-19 06:34:29,157 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 06:34:29,157 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574531295]
[2023-12-19 06:34:29,157 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574531295] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-19 06:34:29,157 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-19 06:34:29,157 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9
[2023-12-19 06:34:29,157 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420759160]
[2023-12-19 06:34:29,157 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-19 06:34:29,158 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-19 06:34:29,158 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 06:34:29,159 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-19 06:34:29,159 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2023-12-19 06:34:29,160 INFO  L87              Difference]: Start difference. First operand 181 states and 270 transitions. Second operand  has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36)
[2023-12-19 06:34:29,360 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 06:34:29,360 INFO  L93              Difference]: Finished difference Result 291 states and 426 transitions.
[2023-12-19 06:34:29,361 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-19 06:34:29,361 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 154
[2023-12-19 06:34:29,362 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 06:34:29,363 INFO  L225             Difference]: With dead ends: 291
[2023-12-19 06:34:29,363 INFO  L226             Difference]: Without dead ends: 111
[2023-12-19 06:34:29,364 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 299 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210
[2023-12-19 06:34:29,365 INFO  L413           NwaCegarLoop]: 57 mSDtfsCounter, 135 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-19 06:34:29,365 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 118 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-19 06:34:29,365 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 111 states.
[2023-12-19 06:34:29,376 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 97.
[2023-12-19 06:34:29,377 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 97 states, 60 states have (on average 1.1833333333333333) internal successors, (71), 61 states have internal predecessors, (71), 33 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33)
[2023-12-19 06:34:29,377 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 137 transitions.
[2023-12-19 06:34:29,377 INFO  L78                 Accepts]: Start accepts. Automaton has 97 states and 137 transitions. Word has length 154
[2023-12-19 06:34:29,378 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 06:34:29,378 INFO  L495      AbstractCegarLoop]: Abstraction has 97 states and 137 transitions.
[2023-12-19 06:34:29,378 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36)
[2023-12-19 06:34:29,378 INFO  L276                IsEmpty]: Start isEmpty. Operand 97 states and 137 transitions.
[2023-12-19 06:34:29,379 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2023-12-19 06:34:29,379 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:34:29,379 INFO  L195           NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 06:34:29,397 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2023-12-19 06:34:29,585 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:34:29,586 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:34:29,587 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:34:29,587 INFO  L85        PathProgramCache]: Analyzing trace with hash 1320441092, now seen corresponding path program 1 times
[2023-12-19 06:34:29,587 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:34:29,587 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506282616]
[2023-12-19 06:34:29,587 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:34:29,588 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:34:29,615 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 06:34:29,616 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196812009]
[2023-12-19 06:34:29,616 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:34:29,616 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:34:29,616 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:34:29,633 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-19 06:34:29,634 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-19 06:34:29,741 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:34:29,743 INFO  L262         TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 45 conjunts are in the unsatisfiable core
[2023-12-19 06:34:29,747 INFO  L285         TraceCheckSpWp]: Computing forward predicates...