/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-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cambridge.7.prop1-back-serstep.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-25 17:05:31,866 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-25 17:05:31,929 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf
[2023-12-25 17:05:31,933 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-25 17:05:31,933 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-25 17:05:31,954 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-25 17:05:31,955 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-25 17:05:31,955 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-25 17:05:31,956 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-25 17:05:31,958 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-25 17:05:31,959 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-25 17:05:31,959 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-25 17:05:31,959 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-25 17:05:31,960 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-25 17:05:31,960 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-25 17:05:31,961 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-25 17:05:31,961 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-25 17:05:31,961 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-25 17:05:31,962 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-25 17:05:31,962 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-25 17:05:31,962 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-25 17:05:31,962 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-25 17:05:31,963 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-25 17:05:31,963 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-25 17:05:31,963 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-25 17:05:31,963 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-25 17:05:31,963 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-25 17:05:31,964 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-25 17:05:31,964 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-25 17:05:31,964 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 17:05:31,965 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-25 17:05:31,965 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-25 17:05:31,965 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-25 17:05:31,965 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-25 17:05:31,965 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-25 17:05:31,965 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-25 17:05:31,965 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-25 17:05:31,965 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-25 17:05:31,966 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-25 17:05:31,966 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-25 17:05:31,966 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-25 17:05:32,150 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-25 17:05:32,176 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-25 17:05:32,178 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-25 17:05:32,179 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-25 17:05:32,179 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-25 17:05:32,180 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cambridge.7.prop1-back-serstep.c
[2023-12-25 17:05:33,037 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-25 17:05:33,380 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-25 17:05:33,380 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cambridge.7.prop1-back-serstep.c
[2023-12-25 17:05:33,420 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ffc52eb/a539baf563e9423f8c9c7d6b219cd381/FLAG3091c52a0
[2023-12-25 17:05:33,435 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ffc52eb/a539baf563e9423f8c9c7d6b219cd381
[2023-12-25 17:05:33,437 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-25 17:05:33,438 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-25 17:05:33,440 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-25 17:05:33,440 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-25 17:05:33,443 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-25 17:05:33,444 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:05:33" (1/1) ...
[2023-12-25 17:05:33,444 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e537d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:05:33, skipping insertion in model container
[2023-12-25 17:05:33,444 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:05:33" (1/1) ...
[2023-12-25 17:05:33,567 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-25 17:05:33,781 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cambridge.7.prop1-back-serstep.c[1177,1190]
[2023-12-25 17:05:34,544 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 17:05:34,554 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-25 17:05:34,562 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cambridge.7.prop1-back-serstep.c[1177,1190]
[2023-12-25 17:05:35,111 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 17:05:35,150 INFO  L206         MainTranslator]: Completed translation
[2023-12-25 17:05:35,151 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:05:35 WrapperNode
[2023-12-25 17:05:35,151 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-25 17:05:35,151 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-25 17:05:35,151 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-25 17:05:35,152 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-25 17:05:35,156 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:05:35" (1/1) ...
[2023-12-25 17:05:35,422 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:05:35" (1/1) ...
[2023-12-25 17:05:37,588 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34583
[2023-12-25 17:05:37,589 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-25 17:05:37,589 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-25 17:05:37,589 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-25 17:05:37,590 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-25 17:05:37,597 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:05:35" (1/1) ...
[2023-12-25 17:05:37,597 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:05:35" (1/1) ...
[2023-12-25 17:05:38,135 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:05:35" (1/1) ...
[2023-12-25 17:05:38,500 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].
[2023-12-25 17:05:38,500 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:05:35" (1/1) ...
[2023-12-25 17:05:38,500 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:05:35" (1/1) ...
[2023-12-25 17:05:39,208 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:05:35" (1/1) ...
[2023-12-25 17:05:39,306 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:05:35" (1/1) ...
[2023-12-25 17:05:39,420 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:05:35" (1/1) ...
[2023-12-25 17:05:39,504 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:05:35" (1/1) ...
[2023-12-25 17:05:39,899 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-25 17:05:39,900 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-25 17:05:39,900 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-25 17:05:39,900 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-25 17:05:39,901 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:05:35" (1/1) ...
[2023-12-25 17:05:39,910 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 17:05:39,918 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:05:39,932 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)
[2023-12-25 17:05:39,940 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
[2023-12-25 17:05:39,960 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-25 17:05:39,961 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-25 17:05:39,961 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-25 17:05:39,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-25 17:05:41,551 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-25 17:05:41,552 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-25 17:05:53,307 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-25 17:05:53,650 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-25 17:05:53,651 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-25 17:05:53,651 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:05:53 BoogieIcfgContainer
[2023-12-25 17:05:53,651 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-25 17:05:53,652 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-25 17:05:53,653 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-25 17:05:53,655 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-25 17:05:53,655 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:05:33" (1/3) ...
[2023-12-25 17:05:53,655 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652e22aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:05:53, skipping insertion in model container
[2023-12-25 17:05:53,655 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:05:35" (2/3) ...
[2023-12-25 17:05:53,655 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652e22aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:05:53, skipping insertion in model container
[2023-12-25 17:05:53,655 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:05:53" (3/3) ...
[2023-12-25 17:05:53,656 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cambridge.7.prop1-back-serstep.c
[2023-12-25 17:05:53,667 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-25 17:05:53,668 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-25 17:05:53,750 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-25 17:05:53,754 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;@76e27c18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-25 17:05:53,754 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-25 17:05:53,770 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 7159 states, 7157 states have (on average 1.6706720693027806) internal successors, (11957), 7158 states have internal predecessors, (11957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:05:53,789 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 587
[2023-12-25 17:05:53,789 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:05:53,790 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:05:53,790 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:05:53,793 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:05:53,794 INFO  L85        PathProgramCache]: Analyzing trace with hash -1803305258, now seen corresponding path program 1 times
[2023-12-25 17:05:53,804 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:05:53,805 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388061657]
[2023-12-25 17:05:53,805 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:05:53,806 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:05:54,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:05:56,042 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:05:56,043 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:05:56,043 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388061657]
[2023-12-25 17:05:56,043 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388061657] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:05:56,043 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:05:56,044 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:05:56,045 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398366256]
[2023-12-25 17:05:56,046 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:05:56,051 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 17:05:56,051 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:05:56,074 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 17:05:56,074 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:05:56,088 INFO  L87              Difference]: Start difference. First operand  has 7159 states, 7157 states have (on average 1.6706720693027806) internal successors, (11957), 7158 states have internal predecessors, (11957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 146.5) internal successors, (586), 4 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:05:56,379 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:05:56,379 INFO  L93              Difference]: Finished difference Result 14092 states and 23540 transitions.
[2023-12-25 17:05:56,380 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 17:05:56,381 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 146.5) internal successors, (586), 4 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 586
[2023-12-25 17:05:56,385 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:05:56,417 INFO  L225             Difference]: With dead ends: 14092
[2023-12-25 17:05:56,418 INFO  L226             Difference]: Without dead ends: 7159
[2023-12-25 17:05:56,432 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:05:56,435 INFO  L413           NwaCegarLoop]: 11950 mSDtfsCounter, 1 mSDsluCounter, 23895 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 35845 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:05:56,436 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 35845 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:05:56,455 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7159 states.
[2023-12-25 17:05:56,731 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7159 to 7159.
[2023-12-25 17:05:56,742 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7159 states, 7158 states have (on average 1.6701592623637889) internal successors, (11955), 7158 states have internal predecessors, (11955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:05:56,765 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7159 states to 7159 states and 11955 transitions.
[2023-12-25 17:05:56,767 INFO  L78                 Accepts]: Start accepts. Automaton has 7159 states and 11955 transitions. Word has length 586
[2023-12-25 17:05:56,769 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:05:56,769 INFO  L495      AbstractCegarLoop]: Abstraction has 7159 states and 11955 transitions.
[2023-12-25 17:05:56,769 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 146.5) internal successors, (586), 4 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:05:56,769 INFO  L276                IsEmpty]: Start isEmpty. Operand 7159 states and 11955 transitions.
[2023-12-25 17:05:56,776 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 588
[2023-12-25 17:05:56,776 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:05:56,777 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:05:56,777 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-25 17:05:56,777 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:05:56,777 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:05:56,778 INFO  L85        PathProgramCache]: Analyzing trace with hash -66159710, now seen corresponding path program 1 times
[2023-12-25 17:05:56,778 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:05:56,778 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96156165]
[2023-12-25 17:05:56,778 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:05:56,778 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:05:56,988 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:05:57,578 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:05:57,579 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:05:57,579 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96156165]
[2023-12-25 17:05:57,579 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96156165] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:05:57,579 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:05:57,579 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:05:57,579 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886698551]
[2023-12-25 17:05:57,579 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:05:57,581 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 17:05:57,581 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:05:57,581 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 17:05:57,582 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:05:57,582 INFO  L87              Difference]: Start difference. First operand 7159 states and 11955 transitions. Second operand  has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:05:57,764 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:05:57,765 INFO  L93              Difference]: Finished difference Result 14095 states and 23538 transitions.
[2023-12-25 17:05:57,766 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 17:05:57,766 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 587
[2023-12-25 17:05:57,767 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:05:57,784 INFO  L225             Difference]: With dead ends: 14095
[2023-12-25 17:05:57,784 INFO  L226             Difference]: Without dead ends: 7162
[2023-12-25 17:05:57,792 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:05:57,794 INFO  L413           NwaCegarLoop]: 11950 mSDtfsCounter, 1 mSDsluCounter, 23893 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 35843 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:05:57,794 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 35843 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:05:57,803 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7162 states.
[2023-12-25 17:05:57,878 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7162 to 7161.
[2023-12-25 17:05:57,896 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7161 states, 7160 states have (on average 1.669972067039106) internal successors, (11957), 7160 states have internal predecessors, (11957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:05:57,911 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7161 states to 7161 states and 11957 transitions.
[2023-12-25 17:05:57,912 INFO  L78                 Accepts]: Start accepts. Automaton has 7161 states and 11957 transitions. Word has length 587
[2023-12-25 17:05:57,912 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:05:57,912 INFO  L495      AbstractCegarLoop]: Abstraction has 7161 states and 11957 transitions.
[2023-12-25 17:05:57,913 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:05:57,913 INFO  L276                IsEmpty]: Start isEmpty. Operand 7161 states and 11957 transitions.
[2023-12-25 17:05:57,920 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 589
[2023-12-25 17:05:57,920 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:05:57,920 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:05:57,921 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-25 17:05:57,921 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:05:57,922 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:05:57,922 INFO  L85        PathProgramCache]: Analyzing trace with hash -486372622, now seen corresponding path program 1 times
[2023-12-25 17:05:57,923 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:05:57,923 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609476907]
[2023-12-25 17:05:57,923 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:05:57,923 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:05:58,164 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:05:58,973 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:05:58,973 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:05:58,974 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609476907]
[2023-12-25 17:05:58,974 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609476907] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:05:58,974 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:05:58,974 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:05:58,974 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087561667]
[2023-12-25 17:05:58,975 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:05:58,975 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 17:05:58,975 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:05:58,976 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 17:05:58,978 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 17:05:58,978 INFO  L87              Difference]: Start difference. First operand 7161 states and 11957 transitions. Second operand  has 5 states, 5 states have (on average 117.6) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:05:59,323 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:05:59,324 INFO  L93              Difference]: Finished difference Result 21666 states and 36179 transitions.
[2023-12-25 17:05:59,324 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:05:59,325 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 117.6) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 588
[2023-12-25 17:05:59,325 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:05:59,367 INFO  L225             Difference]: With dead ends: 21666
[2023-12-25 17:05:59,367 INFO  L226             Difference]: Without dead ends: 14731
[2023-12-25 17:05:59,378 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-25 17:05:59,380 INFO  L413           NwaCegarLoop]: 13019 mSDtfsCounter, 47151 mSDsluCounter, 23894 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47151 SdHoareTripleChecker+Valid, 36913 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 17:05:59,380 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [47151 Valid, 36913 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 17:05:59,393 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14731 states.
[2023-12-25 17:05:59,503 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14731 to 7805.
[2023-12-25 17:05:59,513 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7805 states, 7804 states have (on average 1.6695284469502818) internal successors, (13029), 7804 states have internal predecessors, (13029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:05:59,525 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7805 states to 7805 states and 13029 transitions.
[2023-12-25 17:05:59,525 INFO  L78                 Accepts]: Start accepts. Automaton has 7805 states and 13029 transitions. Word has length 588
[2023-12-25 17:05:59,526 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:05:59,526 INFO  L495      AbstractCegarLoop]: Abstraction has 7805 states and 13029 transitions.
[2023-12-25 17:05:59,527 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 117.6) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:05:59,528 INFO  L276                IsEmpty]: Start isEmpty. Operand 7805 states and 13029 transitions.
[2023-12-25 17:05:59,772 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5066
[2023-12-25 17:05:59,772 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:05:59,774 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:05:59,774 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-25 17:05:59,774 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:05:59,775 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:05:59,775 INFO  L85        PathProgramCache]: Analyzing trace with hash 1097550772, now seen corresponding path program 1 times
[2023-12-25 17:05:59,776 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:05:59,776 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992787669]
[2023-12-25 17:05:59,776 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:05:59,776 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:06:00,278 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:06:00,278 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1464642289]
[2023-12-25 17:06:00,279 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:06:00,280 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:06:00,280 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:06:00,282 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)
[2023-12-25 17:06:00,287 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-25 17:06:07,397 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:06:07,585 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30623 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 17:06:07,687 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:06:07,815 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:06:07,815 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:06:07,815 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:06:07,816 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992787669]
[2023-12-25 17:06:07,816 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:06:07,816 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464642289]
[2023-12-25 17:06:07,817 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464642289] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:06:07,817 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:06:07,818 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:06:07,818 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208347255]
[2023-12-25 17:06:07,818 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:06:07,822 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 17:06:07,822 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:06:07,825 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 17:06:07,825 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:06:07,826 INFO  L87              Difference]: Start difference. First operand 7805 states and 13029 transitions. Second operand  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:08,052 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:06:08,052 INFO  L93              Difference]: Finished difference Result 14750 states and 24626 transitions.
[2023-12-25 17:06:08,053 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 17:06:08,054 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5065
[2023-12-25 17:06:08,055 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:06:08,064 INFO  L225             Difference]: With dead ends: 14750
[2023-12-25 17:06:08,065 INFO  L226             Difference]: Without dead ends: 7815
[2023-12-25 17:06:08,072 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5064 GetRequests, 5062 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:06:08,076 INFO  L413           NwaCegarLoop]: 11950 mSDtfsCounter, 12 mSDsluCounter, 23890 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 35840 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:06:08,076 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 35840 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:06:08,085 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7815 states.
[2023-12-25 17:06:08,163 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7815 to 7807.
[2023-12-25 17:06:08,171 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7807 states, 7806 states have (on average 1.6693569049449142) internal successors, (13031), 7806 states have internal predecessors, (13031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:08,182 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7807 states to 7807 states and 13031 transitions.
[2023-12-25 17:06:08,182 INFO  L78                 Accepts]: Start accepts. Automaton has 7807 states and 13031 transitions. Word has length 5065
[2023-12-25 17:06:08,184 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:06:08,184 INFO  L495      AbstractCegarLoop]: Abstraction has 7807 states and 13031 transitions.
[2023-12-25 17:06:08,185 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:08,185 INFO  L276                IsEmpty]: Start isEmpty. Operand 7807 states and 13031 transitions.
[2023-12-25 17:06:08,315 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5066
[2023-12-25 17:06:08,315 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:06:08,318 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:06:08,396 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-12-25 17:06:08,532 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:06:08,533 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:06:08,533 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:06:08,534 INFO  L85        PathProgramCache]: Analyzing trace with hash -158064986, now seen corresponding path program 1 times
[2023-12-25 17:06:08,534 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:06:08,534 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977075062]
[2023-12-25 17:06:08,535 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:06:08,535 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:06:09,016 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:06:09,017 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [950285116]
[2023-12-25 17:06:09,018 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:06:09,018 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:06:09,018 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:06:09,019 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)
[2023-12-25 17:06:09,052 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-25 17:06:15,832 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:06:16,005 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30624 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 17:06:16,074 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:06:16,146 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:06:16,146 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:06:16,146 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:06:16,146 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977075062]
[2023-12-25 17:06:16,146 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:06:16,147 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950285116]
[2023-12-25 17:06:16,147 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [950285116] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:06:16,147 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:06:16,147 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:06:16,147 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715529235]
[2023-12-25 17:06:16,147 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:06:16,151 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 17:06:16,151 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:06:16,154 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 17:06:16,154 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:06:16,155 INFO  L87              Difference]: Start difference. First operand 7807 states and 13031 transitions. Second operand  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:16,304 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:06:16,304 INFO  L93              Difference]: Finished difference Result 14753 states and 24628 transitions.
[2023-12-25 17:06:16,305 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 17:06:16,306 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5065
[2023-12-25 17:06:16,307 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:06:16,317 INFO  L225             Difference]: With dead ends: 14753
[2023-12-25 17:06:16,317 INFO  L226             Difference]: Without dead ends: 7816
[2023-12-25 17:06:16,325 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5064 GetRequests, 5062 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:06:16,325 INFO  L413           NwaCegarLoop]: 11950 mSDtfsCounter, 12 mSDsluCounter, 23890 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 35840 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 17:06:16,325 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 35840 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 17:06:16,332 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7816 states.
[2023-12-25 17:06:16,395 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7816 to 7808.
[2023-12-25 17:06:16,402 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7808 states, 7807 states have (on average 1.6692711669014986) internal successors, (13032), 7807 states have internal predecessors, (13032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:16,410 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7808 states to 7808 states and 13032 transitions.
[2023-12-25 17:06:16,410 INFO  L78                 Accepts]: Start accepts. Automaton has 7808 states and 13032 transitions. Word has length 5065
[2023-12-25 17:06:16,411 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:06:16,411 INFO  L495      AbstractCegarLoop]: Abstraction has 7808 states and 13032 transitions.
[2023-12-25 17:06:16,413 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:16,413 INFO  L276                IsEmpty]: Start isEmpty. Operand 7808 states and 13032 transitions.
[2023-12-25 17:06:16,596 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5066
[2023-12-25 17:06:16,596 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:06:16,599 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:06:16,675 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-12-25 17:06:16,802 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:06:16,803 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:06:16,803 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:06:16,805 INFO  L85        PathProgramCache]: Analyzing trace with hash -1480831848, now seen corresponding path program 1 times
[2023-12-25 17:06:16,805 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:06:16,805 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229059153]
[2023-12-25 17:06:16,805 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:06:16,805 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:06:17,242 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:06:17,242 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [589384067]
[2023-12-25 17:06:17,243 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:06:17,243 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:06:17,243 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:06:17,244 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)
[2023-12-25 17:06:17,255 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-25 17:06:23,957 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:06:24,138 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30625 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 17:06:24,202 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:06:24,279 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:06:24,279 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:06:24,279 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:06:24,279 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229059153]
[2023-12-25 17:06:24,280 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:06:24,280 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589384067]
[2023-12-25 17:06:24,280 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [589384067] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:06:24,280 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:06:24,280 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:06:24,280 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651706840]
[2023-12-25 17:06:24,280 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:06:24,284 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 17:06:24,284 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:06:24,287 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 17:06:24,287 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:06:24,288 INFO  L87              Difference]: Start difference. First operand 7808 states and 13032 transitions. Second operand  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:24,503 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:06:24,503 INFO  L93              Difference]: Finished difference Result 14755 states and 24630 transitions.
[2023-12-25 17:06:24,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 17:06:24,505 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5065
[2023-12-25 17:06:24,507 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:06:24,516 INFO  L225             Difference]: With dead ends: 14755
[2023-12-25 17:06:24,516 INFO  L226             Difference]: Without dead ends: 7817
[2023-12-25 17:06:24,523 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5064 GetRequests, 5062 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:06:24,524 INFO  L413           NwaCegarLoop]: 11950 mSDtfsCounter, 12 mSDsluCounter, 23890 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 35840 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:06:24,524 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 35840 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:06:24,536 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7817 states.
[2023-12-25 17:06:24,597 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7817 to 7809.
[2023-12-25 17:06:24,605 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7809 states, 7808 states have (on average 1.6691854508196722) internal successors, (13033), 7808 states have internal predecessors, (13033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:24,613 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7809 states to 7809 states and 13033 transitions.
[2023-12-25 17:06:24,614 INFO  L78                 Accepts]: Start accepts. Automaton has 7809 states and 13033 transitions. Word has length 5065
[2023-12-25 17:06:24,615 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:06:24,615 INFO  L495      AbstractCegarLoop]: Abstraction has 7809 states and 13033 transitions.
[2023-12-25 17:06:24,616 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:24,617 INFO  L276                IsEmpty]: Start isEmpty. Operand 7809 states and 13033 transitions.
[2023-12-25 17:06:24,788 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5066
[2023-12-25 17:06:24,788 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:06:24,790 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:06:24,867 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-12-25 17:06:24,992 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:06:24,992 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:06:24,993 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:06:24,994 INFO  L85        PathProgramCache]: Analyzing trace with hash -324162550, now seen corresponding path program 1 times
[2023-12-25 17:06:24,994 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:06:24,994 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475475542]
[2023-12-25 17:06:24,995 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:06:24,995 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:06:25,397 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:06:25,397 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1774579371]
[2023-12-25 17:06:25,398 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:06:25,398 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:06:25,398 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:06:25,399 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)
[2023-12-25 17:06:25,417 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-25 17:06:32,179 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:06:32,383 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30626 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 17:06:32,442 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:06:32,530 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:06:32,530 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:06:32,530 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:06:32,530 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475475542]
[2023-12-25 17:06:32,530 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:06:32,530 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774579371]
[2023-12-25 17:06:32,530 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774579371] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:06:32,530 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:06:32,531 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:06:32,531 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784270934]
[2023-12-25 17:06:32,531 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:06:32,534 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 17:06:32,535 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:06:32,537 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 17:06:32,538 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:06:32,538 INFO  L87              Difference]: Start difference. First operand 7809 states and 13033 transitions. Second operand  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:32,778 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:06:32,778 INFO  L93              Difference]: Finished difference Result 14757 states and 24632 transitions.
[2023-12-25 17:06:32,778 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 17:06:32,780 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5065
[2023-12-25 17:06:32,782 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:06:32,791 INFO  L225             Difference]: With dead ends: 14757
[2023-12-25 17:06:32,791 INFO  L226             Difference]: Without dead ends: 7818
[2023-12-25 17:06:32,798 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5064 GetRequests, 5062 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:06:32,799 INFO  L413           NwaCegarLoop]: 11950 mSDtfsCounter, 12 mSDsluCounter, 23890 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 35840 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:06:32,799 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 35840 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:06:32,806 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7818 states.
[2023-12-25 17:06:32,871 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7818 to 7810.
[2023-12-25 17:06:32,881 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7810 states, 7809 states have (on average 1.6690997566909975) internal successors, (13034), 7809 states have internal predecessors, (13034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:32,889 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7810 states to 7810 states and 13034 transitions.
[2023-12-25 17:06:32,889 INFO  L78                 Accepts]: Start accepts. Automaton has 7810 states and 13034 transitions. Word has length 5065
[2023-12-25 17:06:32,894 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:06:32,894 INFO  L495      AbstractCegarLoop]: Abstraction has 7810 states and 13034 transitions.
[2023-12-25 17:06:32,896 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:32,896 INFO  L276                IsEmpty]: Start isEmpty. Operand 7810 states and 13034 transitions.
[2023-12-25 17:06:33,025 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5066
[2023-12-25 17:06:33,025 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:06:33,027 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:06:33,108 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2023-12-25 17:06:33,227 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:06:33,228 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:06:33,228 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:06:33,229 INFO  L85        PathProgramCache]: Analyzing trace with hash -1084151848, now seen corresponding path program 1 times
[2023-12-25 17:06:33,230 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:06:33,230 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127884827]
[2023-12-25 17:06:33,230 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:06:33,230 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:06:33,663 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:06:33,664 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1341640225]
[2023-12-25 17:06:33,665 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:06:33,665 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:06:33,665 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:06:33,666 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:06:33,690 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-12-25 17:06:40,328 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:06:40,501 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30627 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 17:06:40,574 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:06:40,710 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:06:40,710 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:06:40,710 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:06:40,710 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127884827]
[2023-12-25 17:06:40,710 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:06:40,710 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341640225]
[2023-12-25 17:06:40,711 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341640225] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:06:40,711 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:06:40,711 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:06:40,712 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813335534]
[2023-12-25 17:06:40,712 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:06:40,716 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 17:06:40,716 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:06:40,718 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 17:06:40,718 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:06:40,719 INFO  L87              Difference]: Start difference. First operand 7810 states and 13034 transitions. Second operand  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:40,864 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:06:40,864 INFO  L93              Difference]: Finished difference Result 14759 states and 24634 transitions.
[2023-12-25 17:06:40,865 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 17:06:40,867 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5065
[2023-12-25 17:06:40,869 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:06:40,877 INFO  L225             Difference]: With dead ends: 14759
[2023-12-25 17:06:40,878 INFO  L226             Difference]: Without dead ends: 7819
[2023-12-25 17:06:40,884 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5064 GetRequests, 5062 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:06:40,885 INFO  L413           NwaCegarLoop]: 11950 mSDtfsCounter, 12 mSDsluCounter, 23890 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 35840 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 17:06:40,885 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 35840 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 17:06:40,891 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7819 states.
[2023-12-25 17:06:40,961 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7819 to 7811.
[2023-12-25 17:06:40,968 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7811 states, 7810 states have (on average 1.6690140845070423) internal successors, (13035), 7810 states have internal predecessors, (13035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:40,976 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7811 states to 7811 states and 13035 transitions.
[2023-12-25 17:06:40,976 INFO  L78                 Accepts]: Start accepts. Automaton has 7811 states and 13035 transitions. Word has length 5065
[2023-12-25 17:06:40,979 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:06:40,979 INFO  L495      AbstractCegarLoop]: Abstraction has 7811 states and 13035 transitions.
[2023-12-25 17:06:40,980 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:40,980 INFO  L276                IsEmpty]: Start isEmpty. Operand 7811 states and 13035 transitions.
[2023-12-25 17:06:41,184 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5066
[2023-12-25 17:06:41,186 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:06:41,188 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:06:41,260 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-12-25 17:06:41,392 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:06:41,392 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:06:41,392 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:06:41,394 INFO  L85        PathProgramCache]: Analyzing trace with hash -865662554, now seen corresponding path program 1 times
[2023-12-25 17:06:41,394 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:06:41,394 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775334668]
[2023-12-25 17:06:41,394 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:06:41,395 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:06:41,825 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:06:41,826 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1365441932]
[2023-12-25 17:06:41,827 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:06:41,827 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:06:41,827 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:06:41,840 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:06:41,866 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-12-25 17:06:48,387 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:06:48,574 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30628 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 17:06:48,739 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:06:48,821 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:06:48,821 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:06:48,821 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:06:48,821 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775334668]
[2023-12-25 17:06:48,821 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:06:48,821 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365441932]
[2023-12-25 17:06:48,822 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365441932] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:06:48,822 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:06:48,822 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:06:48,822 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179064230]
[2023-12-25 17:06:48,822 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:06:48,826 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 17:06:48,826 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:06:48,828 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 17:06:48,828 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:06:48,829 INFO  L87              Difference]: Start difference. First operand 7811 states and 13035 transitions. Second operand  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:48,971 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:06:48,971 INFO  L93              Difference]: Finished difference Result 14761 states and 24636 transitions.
[2023-12-25 17:06:48,971 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 17:06:48,972 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5065
[2023-12-25 17:06:48,975 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:06:48,984 INFO  L225             Difference]: With dead ends: 14761
[2023-12-25 17:06:48,984 INFO  L226             Difference]: Without dead ends: 7820
[2023-12-25 17:06:48,992 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5064 GetRequests, 5062 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:06:48,994 INFO  L413           NwaCegarLoop]: 11950 mSDtfsCounter, 12 mSDsluCounter, 23890 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 35840 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 17:06:48,994 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 35840 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 17:06:49,000 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7820 states.
[2023-12-25 17:06:49,057 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7820 to 7812.
[2023-12-25 17:06:49,064 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7812 states, 7811 states have (on average 1.6689284342593778) internal successors, (13036), 7811 states have internal predecessors, (13036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:49,071 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7812 states to 7812 states and 13036 transitions.
[2023-12-25 17:06:49,071 INFO  L78                 Accepts]: Start accepts. Automaton has 7812 states and 13036 transitions. Word has length 5065
[2023-12-25 17:06:49,074 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:06:49,074 INFO  L495      AbstractCegarLoop]: Abstraction has 7812 states and 13036 transitions.
[2023-12-25 17:06:49,075 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:49,075 INFO  L276                IsEmpty]: Start isEmpty. Operand 7812 states and 13036 transitions.
[2023-12-25 17:06:49,251 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5066
[2023-12-25 17:06:49,251 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:06:49,253 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:06:49,337 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2023-12-25 17:06:49,460 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:06:49,461 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:06:49,461 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:06:49,462 INFO  L85        PathProgramCache]: Analyzing trace with hash -1487969640, now seen corresponding path program 1 times
[2023-12-25 17:06:49,462 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:06:49,462 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422773225]
[2023-12-25 17:06:49,463 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:06:49,463 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:06:49,836 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:06:49,836 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1044223533]
[2023-12-25 17:06:49,837 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:06:49,837 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:06:49,837 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:06:49,839 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:06:49,841 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-12-25 17:06:56,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:06:56,670 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30629 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 17:06:56,726 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:06:56,794 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:06:56,795 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:06:56,795 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:06:56,795 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422773225]
[2023-12-25 17:06:56,795 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:06:56,795 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044223533]
[2023-12-25 17:06:56,795 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044223533] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:06:56,795 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:06:56,796 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:06:56,797 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483692654]
[2023-12-25 17:06:56,797 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:06:56,801 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 17:06:56,801 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:06:56,804 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 17:06:56,804 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:06:56,804 INFO  L87              Difference]: Start difference. First operand 7812 states and 13036 transitions. Second operand  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:56,940 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:06:56,940 INFO  L93              Difference]: Finished difference Result 14763 states and 24638 transitions.
[2023-12-25 17:06:56,940 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 17:06:56,942 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5065
[2023-12-25 17:06:56,944 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:06:56,953 INFO  L225             Difference]: With dead ends: 14763
[2023-12-25 17:06:56,953 INFO  L226             Difference]: Without dead ends: 7821
[2023-12-25 17:06:56,959 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5064 GetRequests, 5062 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:06:56,959 INFO  L413           NwaCegarLoop]: 11950 mSDtfsCounter, 12 mSDsluCounter, 23890 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 35840 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 17:06:56,959 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 35840 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 17:06:56,965 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7821 states.
[2023-12-25 17:06:57,020 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7821 to 7813.
[2023-12-25 17:06:57,027 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7813 states, 7812 states have (on average 1.6688428059395801) internal successors, (13037), 7812 states have internal predecessors, (13037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:57,034 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7813 states to 7813 states and 13037 transitions.
[2023-12-25 17:06:57,034 INFO  L78                 Accepts]: Start accepts. Automaton has 7813 states and 13037 transitions. Word has length 5065
[2023-12-25 17:06:57,036 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:06:57,036 INFO  L495      AbstractCegarLoop]: Abstraction has 7813 states and 13037 transitions.
[2023-12-25 17:06:57,037 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:06:57,037 INFO  L276                IsEmpty]: Start isEmpty. Operand 7813 states and 13037 transitions.
[2023-12-25 17:06:57,265 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5066
[2023-12-25 17:06:57,266 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:06:57,268 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:06:57,349 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2023-12-25 17:06:57,475 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:06:57,475 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:06:57,475 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:06:57,477 INFO  L85        PathProgramCache]: Analyzing trace with hash -564035702, now seen corresponding path program 1 times
[2023-12-25 17:06:57,477 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:06:57,477 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176051364]
[2023-12-25 17:06:57,477 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:06:57,477 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:06:57,941 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:06:57,941 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [211573635]
[2023-12-25 17:06:57,942 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:06:57,942 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:06:57,942 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:06:57,943 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:06:57,965 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2023-12-25 17:07:04,532 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:07:04,709 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30630 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 17:07:04,762 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:07:04,842 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:07:04,842 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:07:04,842 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:07:04,842 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176051364]
[2023-12-25 17:07:04,842 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:07:04,842 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211573635]
[2023-12-25 17:07:04,843 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [211573635] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:07:04,843 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:07:04,843 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:07:04,843 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818813428]
[2023-12-25 17:07:04,843 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:07:04,847 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 17:07:04,847 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:07:04,850 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 17:07:04,850 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:07:04,850 INFO  L87              Difference]: Start difference. First operand 7813 states and 13037 transitions. Second operand  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:04,985 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:07:04,985 INFO  L93              Difference]: Finished difference Result 14765 states and 24640 transitions.
[2023-12-25 17:07:04,986 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 17:07:04,987 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5065
[2023-12-25 17:07:04,989 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:07:04,997 INFO  L225             Difference]: With dead ends: 14765
[2023-12-25 17:07:04,998 INFO  L226             Difference]: Without dead ends: 7822
[2023-12-25 17:07:05,003 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5064 GetRequests, 5062 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:07:05,004 INFO  L413           NwaCegarLoop]: 11950 mSDtfsCounter, 12 mSDsluCounter, 23890 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 35840 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 17:07:05,004 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 35840 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 17:07:05,011 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7822 states.
[2023-12-25 17:07:05,205 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7822 to 7814.
[2023-12-25 17:07:05,211 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7814 states, 7813 states have (on average 1.6687571995392294) internal successors, (13038), 7813 states have internal predecessors, (13038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:05,218 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7814 states to 7814 states and 13038 transitions.
[2023-12-25 17:07:05,218 INFO  L78                 Accepts]: Start accepts. Automaton has 7814 states and 13038 transitions. Word has length 5065
[2023-12-25 17:07:05,220 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:07:05,220 INFO  L495      AbstractCegarLoop]: Abstraction has 7814 states and 13038 transitions.
[2023-12-25 17:07:05,221 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1266.25) internal successors, (5065), 4 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:05,221 INFO  L276                IsEmpty]: Start isEmpty. Operand 7814 states and 13038 transitions.
[2023-12-25 17:07:05,344 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5066
[2023-12-25 17:07:05,345 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:07:05,347 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:07:05,425 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2023-12-25 17:07:05,552 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2023-12-25 17:07:05,552 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:07:05,553 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:07:05,554 INFO  L85        PathProgramCache]: Analyzing trace with hash 892925564, now seen corresponding path program 1 times
[2023-12-25 17:07:05,554 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:07:05,554 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307888667]
[2023-12-25 17:07:05,554 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:07:05,554 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:07:06,013 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:07:06,014 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1089651461]
[2023-12-25 17:07:06,015 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:07:06,015 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:07:06,015 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:07:06,016 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:07:06,018 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2023-12-25 17:07:12,626 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:07:12,811 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30631 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:07:12,888 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:07:13,127 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked.
[2023-12-25 17:07:13,127 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:07:13,127 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:07:13,127 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307888667]
[2023-12-25 17:07:13,127 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:07:13,127 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089651461]
[2023-12-25 17:07:13,127 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089651461] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:07:13,127 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:07:13,128 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:07:13,128 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831179647]
[2023-12-25 17:07:13,128 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:07:13,131 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:07:13,131 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:07:13,134 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:07:13,134 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:07:13,135 INFO  L87              Difference]: Start difference. First operand 7814 states and 13038 transitions. Second operand  has 7 states, 7 states have (on average 662.5714285714286) internal successors, (4638), 7 states have internal predecessors, (4638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:13,611 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:07:13,611 INFO  L93              Difference]: Finished difference Result 21699 states and 36212 transitions.
[2023-12-25 17:07:13,611 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:07:13,612 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 662.5714285714286) internal successors, (4638), 7 states have internal predecessors, (4638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5065
[2023-12-25 17:07:13,616 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:07:13,629 INFO  L225             Difference]: With dead ends: 21699
[2023-12-25 17:07:13,629 INFO  L226             Difference]: Without dead ends: 14755
[2023-12-25 17:07:13,636 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5074 GetRequests, 5062 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:07:13,637 INFO  L413           NwaCegarLoop]: 13017 mSDtfsCounter, 33875 mSDsluCounter, 50983 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33875 SdHoareTripleChecker+Valid, 64000 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:07:13,637 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33875 Valid, 64000 Invalid, 47 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:07:13,648 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14755 states.
[2023-12-25 17:07:13,737 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14755 to 7814.
[2023-12-25 17:07:13,744 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7814 states, 7813 states have (on average 1.6687571995392294) internal successors, (13038), 7813 states have internal predecessors, (13038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:13,751 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7814 states to 7814 states and 13038 transitions.
[2023-12-25 17:07:13,751 INFO  L78                 Accepts]: Start accepts. Automaton has 7814 states and 13038 transitions. Word has length 5065
[2023-12-25 17:07:13,754 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:07:13,754 INFO  L495      AbstractCegarLoop]: Abstraction has 7814 states and 13038 transitions.
[2023-12-25 17:07:13,754 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 662.5714285714286) internal successors, (4638), 7 states have internal predecessors, (4638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:13,754 INFO  L276                IsEmpty]: Start isEmpty. Operand 7814 states and 13038 transitions.
[2023-12-25 17:07:13,878 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5067
[2023-12-25 17:07:13,878 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:07:13,880 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:07:13,962 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2023-12-25 17:07:14,094 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:07:14,094 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:07:14,094 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:07:14,096 INFO  L85        PathProgramCache]: Analyzing trace with hash 1800185664, now seen corresponding path program 1 times
[2023-12-25 17:07:14,096 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:07:14,096 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985803944]
[2023-12-25 17:07:14,096 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:07:14,096 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:07:14,495 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:07:14,495 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [163820060]
[2023-12-25 17:07:14,496 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:07:14,496 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:07:14,497 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:07:14,497 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:07:14,499 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2023-12-25 17:07:21,196 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:07:21,372 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30634 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:07:21,442 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:07:21,670 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked.
[2023-12-25 17:07:21,670 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:07:21,670 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:07:21,670 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985803944]
[2023-12-25 17:07:21,670 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:07:21,670 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163820060]
[2023-12-25 17:07:21,671 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [163820060] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:07:21,671 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:07:21,671 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:07:21,671 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811203199]
[2023-12-25 17:07:21,671 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:07:21,675 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:07:21,675 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:07:21,677 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:07:21,677 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:07:21,678 INFO  L87              Difference]: Start difference. First operand 7814 states and 13038 transitions. Second operand  has 7 states, 7 states have (on average 663.0) internal successors, (4641), 7 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:22,089 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:07:22,089 INFO  L93              Difference]: Finished difference Result 21701 states and 36214 transitions.
[2023-12-25 17:07:22,089 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:07:22,090 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 663.0) internal successors, (4641), 7 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5066
[2023-12-25 17:07:22,094 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:07:22,108 INFO  L225             Difference]: With dead ends: 21701
[2023-12-25 17:07:22,108 INFO  L226             Difference]: Without dead ends: 14754
[2023-12-25 17:07:22,115 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5075 GetRequests, 5063 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:07:22,115 INFO  L413           NwaCegarLoop]: 13012 mSDtfsCounter, 33874 mSDsluCounter, 50967 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33874 SdHoareTripleChecker+Valid, 63979 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:07:22,115 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33874 Valid, 63979 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:07:22,126 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14754 states.
[2023-12-25 17:07:22,209 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14754 to 7816.
[2023-12-25 17:07:22,216 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7816 states, 7815 states have (on average 1.6685860524632117) internal successors, (13040), 7815 states have internal predecessors, (13040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:22,224 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7816 states to 7816 states and 13040 transitions.
[2023-12-25 17:07:22,224 INFO  L78                 Accepts]: Start accepts. Automaton has 7816 states and 13040 transitions. Word has length 5066
[2023-12-25 17:07:22,226 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:07:22,226 INFO  L495      AbstractCegarLoop]: Abstraction has 7816 states and 13040 transitions.
[2023-12-25 17:07:22,227 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 663.0) internal successors, (4641), 7 states have internal predecessors, (4641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:22,227 INFO  L276                IsEmpty]: Start isEmpty. Operand 7816 states and 13040 transitions.
[2023-12-25 17:07:22,386 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5068
[2023-12-25 17:07:22,386 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:07:22,387 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1]
[2023-12-25 17:07:22,476 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2023-12-25 17:07:22,600 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2023-12-25 17:07:22,601 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:07:22,601 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:07:22,602 INFO  L85        PathProgramCache]: Analyzing trace with hash -227618922, now seen corresponding path program 1 times
[2023-12-25 17:07:22,602 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:07:22,602 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847707897]
[2023-12-25 17:07:22,603 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:07:22,603 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:07:22,979 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:07:22,979 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [446173189]
[2023-12-25 17:07:22,980 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:07:22,981 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:07:22,981 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:07:22,982 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:07:22,984 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2023-12-25 17:07:29,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:07:29,876 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30637 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-25 17:07:29,933 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:07:30,153 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked.
[2023-12-25 17:07:30,153 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:07:30,153 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:07:30,153 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847707897]
[2023-12-25 17:07:30,153 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:07:30,153 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446173189]
[2023-12-25 17:07:30,153 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [446173189] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:07:30,153 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:07:30,154 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-25 17:07:30,154 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695073451]
[2023-12-25 17:07:30,154 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:07:30,157 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-25 17:07:30,158 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:07:30,160 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-25 17:07:30,160 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2023-12-25 17:07:30,160 INFO  L87              Difference]: Start difference. First operand 7816 states and 13040 transitions. Second operand  has 8 states, 8 states have (on average 580.5) internal successors, (4644), 8 states have internal predecessors, (4644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:30,619 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:07:30,619 INFO  L93              Difference]: Finished difference Result 21707 states and 36220 transitions.
[2023-12-25 17:07:30,619 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:07:30,620 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 580.5) internal successors, (4644), 8 states have internal predecessors, (4644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5067
[2023-12-25 17:07:30,623 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:07:30,636 INFO  L225             Difference]: With dead ends: 21707
[2023-12-25 17:07:30,636 INFO  L226             Difference]: Without dead ends: 14755
[2023-12-25 17:07:30,640 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5076 GetRequests, 5063 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210
[2023-12-25 17:07:30,641 INFO  L413           NwaCegarLoop]: 13007 mSDtfsCounter, 33873 mSDsluCounter, 62511 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33873 SdHoareTripleChecker+Valid, 75518 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:07:30,641 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33873 Valid, 75518 Invalid, 54 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:07:30,648 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14755 states.
[2023-12-25 17:07:30,721 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14755 to 7818.
[2023-12-25 17:07:30,727 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7818 states, 7817 states have (on average 1.6684149929640526) internal successors, (13042), 7817 states have internal predecessors, (13042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:30,734 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7818 states to 7818 states and 13042 transitions.
[2023-12-25 17:07:30,735 INFO  L78                 Accepts]: Start accepts. Automaton has 7818 states and 13042 transitions. Word has length 5067
[2023-12-25 17:07:30,737 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:07:30,737 INFO  L495      AbstractCegarLoop]: Abstraction has 7818 states and 13042 transitions.
[2023-12-25 17:07:30,738 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 580.5) internal successors, (4644), 8 states have internal predecessors, (4644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:30,738 INFO  L276                IsEmpty]: Start isEmpty. Operand 7818 states and 13042 transitions.
[2023-12-25 17:07:30,861 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5069
[2023-12-25 17:07:30,861 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:07:30,863 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1]
[2023-12-25 17:07:30,954 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2023-12-25 17:07:31,063 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2023-12-25 17:07:31,064 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:07:31,064 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:07:31,066 INFO  L85        PathProgramCache]: Analyzing trace with hash 1073738534, now seen corresponding path program 1 times
[2023-12-25 17:07:31,066 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:07:31,066 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015111003]
[2023-12-25 17:07:31,066 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:07:31,066 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:07:31,472 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:07:31,472 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [278404478]
[2023-12-25 17:07:31,473 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:07:31,473 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:07:31,474 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:07:31,474 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:07:31,496 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2023-12-25 17:07:38,146 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:07:38,328 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30640 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:07:38,521 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:07:38,723 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked.
[2023-12-25 17:07:38,723 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:07:38,724 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:07:38,724 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015111003]
[2023-12-25 17:07:38,724 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:07:38,724 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278404478]
[2023-12-25 17:07:38,724 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [278404478] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:07:38,724 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:07:38,724 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:07:38,724 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068987877]
[2023-12-25 17:07:38,724 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:07:38,731 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:07:38,731 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:07:38,736 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:07:38,736 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:07:38,737 INFO  L87              Difference]: Start difference. First operand 7818 states and 13042 transitions. Second operand  has 7 states, 7 states have (on average 663.8571428571429) internal successors, (4647), 7 states have internal predecessors, (4647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:39,092 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:07:39,092 INFO  L93              Difference]: Finished difference Result 21713 states and 36226 transitions.
[2023-12-25 17:07:39,092 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:07:39,093 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 663.8571428571429) internal successors, (4647), 7 states have internal predecessors, (4647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5068
[2023-12-25 17:07:39,097 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:07:39,113 INFO  L225             Difference]: With dead ends: 21713
[2023-12-25 17:07:39,113 INFO  L226             Difference]: Without dead ends: 14756
[2023-12-25 17:07:39,123 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5077 GetRequests, 5065 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:07:39,126 INFO  L413           NwaCegarLoop]: 13002 mSDtfsCounter, 33872 mSDsluCounter, 50937 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33872 SdHoareTripleChecker+Valid, 63939 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:07:39,126 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33872 Valid, 63939 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:07:39,137 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14756 states.
[2023-12-25 17:07:39,214 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14756 to 7820.
[2023-12-25 17:07:39,221 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7820 states, 7819 states have (on average 1.6682440209745493) internal successors, (13044), 7819 states have internal predecessors, (13044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:39,227 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7820 states to 7820 states and 13044 transitions.
[2023-12-25 17:07:39,227 INFO  L78                 Accepts]: Start accepts. Automaton has 7820 states and 13044 transitions. Word has length 5068
[2023-12-25 17:07:39,229 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:07:39,229 INFO  L495      AbstractCegarLoop]: Abstraction has 7820 states and 13044 transitions.
[2023-12-25 17:07:39,230 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 663.8571428571429) internal successors, (4647), 7 states have internal predecessors, (4647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:39,230 INFO  L276                IsEmpty]: Start isEmpty. Operand 7820 states and 13044 transitions.
[2023-12-25 17:07:39,394 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5070
[2023-12-25 17:07:39,394 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:07:39,395 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1]
[2023-12-25 17:07:39,488 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0
[2023-12-25 17:07:39,610 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2023-12-25 17:07:39,611 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:07:39,611 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:07:39,612 INFO  L85        PathProgramCache]: Analyzing trace with hash 1851222578, now seen corresponding path program 1 times
[2023-12-25 17:07:39,612 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:07:39,612 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356522082]
[2023-12-25 17:07:39,612 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:07:39,612 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:07:40,093 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:07:40,093 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1078685597]
[2023-12-25 17:07:40,094 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:07:40,094 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:07:40,094 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:07:40,095 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:07:40,104 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2023-12-25 17:07:46,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:07:46,969 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30644 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:07:47,027 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:07:47,210 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2023-12-25 17:07:47,210 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:07:47,211 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:07:47,211 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356522082]
[2023-12-25 17:07:47,211 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:07:47,211 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078685597]
[2023-12-25 17:07:47,211 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078685597] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:07:47,211 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:07:47,211 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:07:47,211 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470108731]
[2023-12-25 17:07:47,211 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:07:47,215 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:07:47,215 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:07:47,217 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:07:47,217 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:07:47,217 INFO  L87              Difference]: Start difference. First operand 7820 states and 13044 transitions. Second operand  has 7 states, 7 states have (on average 664.2857142857143) internal successors, (4650), 7 states have internal predecessors, (4650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:47,623 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:07:47,624 INFO  L93              Difference]: Finished difference Result 21719 states and 36232 transitions.
[2023-12-25 17:07:47,624 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:07:47,625 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 664.2857142857143) internal successors, (4650), 7 states have internal predecessors, (4650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5069
[2023-12-25 17:07:47,628 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:07:47,641 INFO  L225             Difference]: With dead ends: 21719
[2023-12-25 17:07:47,641 INFO  L226             Difference]: Without dead ends: 14757
[2023-12-25 17:07:47,648 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5078 GetRequests, 5066 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:07:47,649 INFO  L413           NwaCegarLoop]: 12997 mSDtfsCounter, 33871 mSDsluCounter, 50922 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33871 SdHoareTripleChecker+Valid, 63919 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:07:47,649 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33871 Valid, 63919 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:07:47,659 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14757 states.
[2023-12-25 17:07:47,733 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14757 to 7822.
[2023-12-25 17:07:47,740 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7822 states, 7821 states have (on average 1.6680731364275667) internal successors, (13046), 7821 states have internal predecessors, (13046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:47,748 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7822 states to 7822 states and 13046 transitions.
[2023-12-25 17:07:47,749 INFO  L78                 Accepts]: Start accepts. Automaton has 7822 states and 13046 transitions. Word has length 5069
[2023-12-25 17:07:47,751 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:07:47,751 INFO  L495      AbstractCegarLoop]: Abstraction has 7822 states and 13046 transitions.
[2023-12-25 17:07:47,752 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 664.2857142857143) internal successors, (4650), 7 states have internal predecessors, (4650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:47,752 INFO  L276                IsEmpty]: Start isEmpty. Operand 7822 states and 13046 transitions.
[2023-12-25 17:07:47,877 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5071
[2023-12-25 17:07:47,877 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:07:47,878 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:07:47,970 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2023-12-25 17:07:48,100 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2023-12-25 17:07:48,100 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:07:48,101 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:07:48,101 INFO  L85        PathProgramCache]: Analyzing trace with hash -254708594, now seen corresponding path program 1 times
[2023-12-25 17:07:48,102 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:07:48,102 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301386562]
[2023-12-25 17:07:48,102 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:07:48,102 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:07:48,495 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:07:48,495 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [625795678]
[2023-12-25 17:07:48,496 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:07:48,496 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:07:48,497 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:07:48,497 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:07:48,524 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2023-12-25 17:07:55,182 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:07:55,357 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30647 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-25 17:07:55,410 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:07:55,597 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked.
[2023-12-25 17:07:55,597 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:07:55,597 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:07:55,597 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301386562]
[2023-12-25 17:07:55,598 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:07:55,598 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625795678]
[2023-12-25 17:07:55,598 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [625795678] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:07:55,598 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:07:55,598 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-25 17:07:55,598 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285278333]
[2023-12-25 17:07:55,598 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:07:55,601 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-25 17:07:55,601 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:07:55,603 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-25 17:07:55,603 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2023-12-25 17:07:55,604 INFO  L87              Difference]: Start difference. First operand 7822 states and 13046 transitions. Second operand  has 8 states, 8 states have (on average 581.625) internal successors, (4653), 8 states have internal predecessors, (4653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:55,994 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:07:55,995 INFO  L93              Difference]: Finished difference Result 21725 states and 36238 transitions.
[2023-12-25 17:07:55,995 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:07:55,996 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 581.625) internal successors, (4653), 8 states have internal predecessors, (4653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5070
[2023-12-25 17:07:55,999 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:07:56,012 INFO  L225             Difference]: With dead ends: 21725
[2023-12-25 17:07:56,013 INFO  L226             Difference]: Without dead ends: 14758
[2023-12-25 17:07:56,021 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5079 GetRequests, 5066 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210
[2023-12-25 17:07:56,022 INFO  L413           NwaCegarLoop]: 12992 mSDtfsCounter, 33870 mSDsluCounter, 63896 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33870 SdHoareTripleChecker+Valid, 76888 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:07:56,022 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33870 Valid, 76888 Invalid, 59 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:07:56,033 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14758 states.
[2023-12-25 17:07:56,110 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14758 to 7824.
[2023-12-25 17:07:56,117 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7824 states, 7823 states have (on average 1.66790233925604) internal successors, (13048), 7823 states have internal predecessors, (13048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:56,124 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7824 states to 7824 states and 13048 transitions.
[2023-12-25 17:07:56,124 INFO  L78                 Accepts]: Start accepts. Automaton has 7824 states and 13048 transitions. Word has length 5070
[2023-12-25 17:07:56,126 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:07:56,127 INFO  L495      AbstractCegarLoop]: Abstraction has 7824 states and 13048 transitions.
[2023-12-25 17:07:56,127 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 581.625) internal successors, (4653), 8 states have internal predecessors, (4653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:07:56,128 INFO  L276                IsEmpty]: Start isEmpty. Operand 7824 states and 13048 transitions.
[2023-12-25 17:07:56,349 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5072
[2023-12-25 17:07:56,349 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:07:56,350 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:07:56,450 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0
[2023-12-25 17:07:56,551 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:07:56,551 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:07:56,551 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:07:56,552 INFO  L85        PathProgramCache]: Analyzing trace with hash 1368022860, now seen corresponding path program 1 times
[2023-12-25 17:07:56,552 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:07:56,552 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376504697]
[2023-12-25 17:07:56,553 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:07:56,553 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:07:57,023 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:07:57,023 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2017418751]
[2023-12-25 17:07:57,041 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:07:57,041 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:07:57,041 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:07:57,042 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:07:57,086 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2023-12-25 17:08:04,089 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:08:04,257 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30650 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:08:04,306 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:08:04,559 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked.
[2023-12-25 17:08:04,559 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:08:04,560 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:08:04,560 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376504697]
[2023-12-25 17:08:04,560 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:08:04,560 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017418751]
[2023-12-25 17:08:04,560 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017418751] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:08:04,560 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:08:04,560 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:08:04,560 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21153385]
[2023-12-25 17:08:04,560 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:08:04,566 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:08:04,566 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:08:04,568 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:08:04,568 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:08:04,569 INFO  L87              Difference]: Start difference. First operand 7824 states and 13048 transitions. Second operand  has 7 states, 7 states have (on average 665.1428571428571) internal successors, (4656), 7 states have internal predecessors, (4656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:04,945 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:08:04,945 INFO  L93              Difference]: Finished difference Result 21731 states and 36244 transitions.
[2023-12-25 17:08:04,946 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:08:04,947 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 665.1428571428571) internal successors, (4656), 7 states have internal predecessors, (4656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5071
[2023-12-25 17:08:04,949 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:08:04,958 INFO  L225             Difference]: With dead ends: 21731
[2023-12-25 17:08:04,958 INFO  L226             Difference]: Without dead ends: 14759
[2023-12-25 17:08:04,962 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5080 GetRequests, 5068 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:08:04,962 INFO  L413           NwaCegarLoop]: 12987 mSDtfsCounter, 33869 mSDsluCounter, 50892 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33869 SdHoareTripleChecker+Valid, 63879 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:08:04,962 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33869 Valid, 63879 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:08:04,970 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14759 states.
[2023-12-25 17:08:05,030 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14759 to 7826.
[2023-12-25 17:08:05,037 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7826 states, 7825 states have (on average 1.6677316293929711) internal successors, (13050), 7825 states have internal predecessors, (13050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:05,043 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7826 states to 7826 states and 13050 transitions.
[2023-12-25 17:08:05,044 INFO  L78                 Accepts]: Start accepts. Automaton has 7826 states and 13050 transitions. Word has length 5071
[2023-12-25 17:08:05,046 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:08:05,046 INFO  L495      AbstractCegarLoop]: Abstraction has 7826 states and 13050 transitions.
[2023-12-25 17:08:05,046 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 665.1428571428571) internal successors, (4656), 7 states have internal predecessors, (4656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:05,046 INFO  L276                IsEmpty]: Start isEmpty. Operand 7826 states and 13050 transitions.
[2023-12-25 17:08:05,171 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5073
[2023-12-25 17:08:05,171 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:08:05,172 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:08:05,261 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0
[2023-12-25 17:08:05,373 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2023-12-25 17:08:05,373 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:08:05,373 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:08:05,374 INFO  L85        PathProgramCache]: Analyzing trace with hash 1870038132, now seen corresponding path program 1 times
[2023-12-25 17:08:05,374 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:08:05,374 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812618649]
[2023-12-25 17:08:05,375 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:08:05,375 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:08:05,821 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:08:05,821 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [474360236]
[2023-12-25 17:08:05,822 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:08:05,822 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:08:05,822 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:08:05,823 INFO  L229       MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:08:05,826 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2023-12-25 17:08:12,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:08:12,737 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30653 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:08:12,794 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:08:12,993 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked.
[2023-12-25 17:08:12,993 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:08:12,993 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:08:12,993 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812618649]
[2023-12-25 17:08:12,993 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:08:12,993 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474360236]
[2023-12-25 17:08:12,993 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [474360236] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:08:12,993 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:08:12,994 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:08:12,994 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097239601]
[2023-12-25 17:08:12,994 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:08:12,996 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:08:12,996 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:08:12,998 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:08:12,998 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:08:12,999 INFO  L87              Difference]: Start difference. First operand 7826 states and 13050 transitions. Second operand  has 7 states, 7 states have (on average 665.5714285714286) internal successors, (4659), 7 states have internal predecessors, (4659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:13,415 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:08:13,415 INFO  L93              Difference]: Finished difference Result 21737 states and 36250 transitions.
[2023-12-25 17:08:13,415 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:08:13,416 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 665.5714285714286) internal successors, (4659), 7 states have internal predecessors, (4659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5072
[2023-12-25 17:08:13,419 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:08:13,432 INFO  L225             Difference]: With dead ends: 21737
[2023-12-25 17:08:13,432 INFO  L226             Difference]: Without dead ends: 14760
[2023-12-25 17:08:13,440 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5081 GetRequests, 5069 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:08:13,441 INFO  L413           NwaCegarLoop]: 12982 mSDtfsCounter, 33868 mSDsluCounter, 50877 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33868 SdHoareTripleChecker+Valid, 63859 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:08:13,441 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33868 Valid, 63859 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:08:13,452 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14760 states.
[2023-12-25 17:08:13,521 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14760 to 7828.
[2023-12-25 17:08:13,528 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7828 states, 7827 states have (on average 1.6675610067714322) internal successors, (13052), 7827 states have internal predecessors, (13052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:13,536 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7828 states to 7828 states and 13052 transitions.
[2023-12-25 17:08:13,536 INFO  L78                 Accepts]: Start accepts. Automaton has 7828 states and 13052 transitions. Word has length 5072
[2023-12-25 17:08:13,538 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:08:13,538 INFO  L495      AbstractCegarLoop]: Abstraction has 7828 states and 13052 transitions.
[2023-12-25 17:08:13,539 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 665.5714285714286) internal successors, (4659), 7 states have internal predecessors, (4659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:13,539 INFO  L276                IsEmpty]: Start isEmpty. Operand 7828 states and 13052 transitions.
[2023-12-25 17:08:13,665 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5074
[2023-12-25 17:08:13,665 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:08:13,666 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:08:13,769 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0
[2023-12-25 17:08:13,866 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:08:13,867 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:08:13,867 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:08:13,868 INFO  L85        PathProgramCache]: Analyzing trace with hash 598680296, now seen corresponding path program 1 times
[2023-12-25 17:08:13,868 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:08:13,868 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604249866]
[2023-12-25 17:08:13,868 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:08:13,869 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:08:14,274 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:08:14,274 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1615749796]
[2023-12-25 17:08:14,275 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:08:14,275 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:08:14,275 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:08:14,276 INFO  L229       MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:08:14,281 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2023-12-25 17:08:20,923 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:08:21,107 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30657 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:08:21,175 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:08:21,384 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked.
[2023-12-25 17:08:21,384 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:08:21,384 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:08:21,384 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604249866]
[2023-12-25 17:08:21,384 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:08:21,384 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615749796]
[2023-12-25 17:08:21,384 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615749796] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:08:21,384 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:08:21,385 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:08:21,385 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491345013]
[2023-12-25 17:08:21,385 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:08:21,387 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:08:21,387 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:08:21,389 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:08:21,389 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:08:21,390 INFO  L87              Difference]: Start difference. First operand 7828 states and 13052 transitions. Second operand  has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:21,852 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:08:21,853 INFO  L93              Difference]: Finished difference Result 21743 states and 36256 transitions.
[2023-12-25 17:08:21,853 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:08:21,854 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5073
[2023-12-25 17:08:21,857 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:08:21,869 INFO  L225             Difference]: With dead ends: 21743
[2023-12-25 17:08:21,869 INFO  L226             Difference]: Without dead ends: 14761
[2023-12-25 17:08:21,875 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5082 GetRequests, 5070 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:08:21,876 INFO  L413           NwaCegarLoop]: 12977 mSDtfsCounter, 33867 mSDsluCounter, 50862 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33867 SdHoareTripleChecker+Valid, 63839 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-25 17:08:21,876 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33867 Valid, 63839 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-25 17:08:21,884 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14761 states.
[2023-12-25 17:08:21,944 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14761 to 7830.
[2023-12-25 17:08:21,949 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7830 states, 7829 states have (on average 1.6673904713245624) internal successors, (13054), 7829 states have internal predecessors, (13054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:21,955 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7830 states to 7830 states and 13054 transitions.
[2023-12-25 17:08:21,955 INFO  L78                 Accepts]: Start accepts. Automaton has 7830 states and 13054 transitions. Word has length 5073
[2023-12-25 17:08:21,957 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:08:21,957 INFO  L495      AbstractCegarLoop]: Abstraction has 7830 states and 13054 transitions.
[2023-12-25 17:08:21,957 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:21,957 INFO  L276                IsEmpty]: Start isEmpty. Operand 7830 states and 13054 transitions.
[2023-12-25 17:08:22,084 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5075
[2023-12-25 17:08:22,085 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:08:22,086 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:08:22,169 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0
[2023-12-25 17:08:22,286 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:08:22,286 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:08:22,287 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:08:22,287 INFO  L85        PathProgramCache]: Analyzing trace with hash -1590405412, now seen corresponding path program 1 times
[2023-12-25 17:08:22,288 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:08:22,288 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073123603]
[2023-12-25 17:08:22,288 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:08:22,288 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:08:22,697 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:08:22,697 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1835084158]
[2023-12-25 17:08:22,698 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:08:22,698 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:08:22,698 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:08:22,699 INFO  L229       MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:08:22,703 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2023-12-25 17:08:29,288 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:08:29,470 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30660 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:08:29,528 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:08:29,709 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked.
[2023-12-25 17:08:29,710 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:08:29,710 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:08:29,710 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073123603]
[2023-12-25 17:08:29,710 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:08:29,710 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835084158]
[2023-12-25 17:08:29,710 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835084158] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:08:29,710 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:08:29,710 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:08:29,711 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187423092]
[2023-12-25 17:08:29,711 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:08:29,713 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:08:29,713 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:08:29,715 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:08:29,715 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:08:29,715 INFO  L87              Difference]: Start difference. First operand 7830 states and 13054 transitions. Second operand  has 7 states, 7 states have (on average 666.4285714285714) internal successors, (4665), 7 states have internal predecessors, (4665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:30,170 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:08:30,170 INFO  L93              Difference]: Finished difference Result 21749 states and 36262 transitions.
[2023-12-25 17:08:30,170 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:08:30,171 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 666.4285714285714) internal successors, (4665), 7 states have internal predecessors, (4665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5074
[2023-12-25 17:08:30,175 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:08:30,188 INFO  L225             Difference]: With dead ends: 21749
[2023-12-25 17:08:30,189 INFO  L226             Difference]: Without dead ends: 14762
[2023-12-25 17:08:30,196 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5083 GetRequests, 5071 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:08:30,197 INFO  L413           NwaCegarLoop]: 12972 mSDtfsCounter, 33866 mSDsluCounter, 50847 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33866 SdHoareTripleChecker+Valid, 63819 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:08:30,197 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33866 Valid, 63819 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:08:30,207 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14762 states.
[2023-12-25 17:08:30,276 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14762 to 7832.
[2023-12-25 17:08:30,282 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7832 states, 7831 states have (on average 1.6672200229855703) internal successors, (13056), 7831 states have internal predecessors, (13056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:30,289 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7832 states to 7832 states and 13056 transitions.
[2023-12-25 17:08:30,289 INFO  L78                 Accepts]: Start accepts. Automaton has 7832 states and 13056 transitions. Word has length 5074
[2023-12-25 17:08:30,291 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:08:30,291 INFO  L495      AbstractCegarLoop]: Abstraction has 7832 states and 13056 transitions.
[2023-12-25 17:08:30,292 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 666.4285714285714) internal successors, (4665), 7 states have internal predecessors, (4665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:30,292 INFO  L276                IsEmpty]: Start isEmpty. Operand 7832 states and 13056 transitions.
[2023-12-25 17:08:30,417 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5076
[2023-12-25 17:08:30,418 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:08:30,419 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:08:30,506 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0
[2023-12-25 17:08:30,619 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:08:30,620 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:08:30,620 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:08:30,621 INFO  L85        PathProgramCache]: Analyzing trace with hash 14922754, now seen corresponding path program 1 times
[2023-12-25 17:08:30,621 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:08:30,621 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148686129]
[2023-12-25 17:08:30,621 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:08:30,621 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:08:31,054 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:08:31,054 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1386987436]
[2023-12-25 17:08:31,055 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:08:31,055 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:08:31,055 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:08:31,056 INFO  L229       MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:08:31,059 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2023-12-25 17:08:37,744 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:08:37,931 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30663 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-25 17:08:37,987 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:08:38,205 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked.
[2023-12-25 17:08:38,205 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:08:38,205 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:08:38,205 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148686129]
[2023-12-25 17:08:38,206 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:08:38,206 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386987436]
[2023-12-25 17:08:38,206 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386987436] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:08:38,206 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:08:38,206 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-25 17:08:38,206 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874062347]
[2023-12-25 17:08:38,206 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:08:38,209 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-25 17:08:38,209 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:08:38,211 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-25 17:08:38,211 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2023-12-25 17:08:38,211 INFO  L87              Difference]: Start difference. First operand 7832 states and 13056 transitions. Second operand  has 8 states, 8 states have (on average 583.5) internal successors, (4668), 8 states have internal predecessors, (4668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:38,595 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:08:38,596 INFO  L93              Difference]: Finished difference Result 21755 states and 36268 transitions.
[2023-12-25 17:08:38,596 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:08:38,597 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 583.5) internal successors, (4668), 8 states have internal predecessors, (4668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5075
[2023-12-25 17:08:38,601 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:08:38,614 INFO  L225             Difference]: With dead ends: 21755
[2023-12-25 17:08:38,614 INFO  L226             Difference]: Without dead ends: 14763
[2023-12-25 17:08:38,622 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5084 GetRequests, 5071 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210
[2023-12-25 17:08:38,623 INFO  L413           NwaCegarLoop]: 12967 mSDtfsCounter, 33865 mSDsluCounter, 62367 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33865 SdHoareTripleChecker+Valid, 75334 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:08:38,623 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33865 Valid, 75334 Invalid, 54 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:08:38,636 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14763 states.
[2023-12-25 17:08:38,707 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14763 to 7834.
[2023-12-25 17:08:38,713 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7834 states, 7833 states have (on average 1.6670496616877315) internal successors, (13058), 7833 states have internal predecessors, (13058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:38,718 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7834 states to 7834 states and 13058 transitions.
[2023-12-25 17:08:38,718 INFO  L78                 Accepts]: Start accepts. Automaton has 7834 states and 13058 transitions. Word has length 5075
[2023-12-25 17:08:38,720 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:08:38,721 INFO  L495      AbstractCegarLoop]: Abstraction has 7834 states and 13058 transitions.
[2023-12-25 17:08:38,721 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 583.5) internal successors, (4668), 8 states have internal predecessors, (4668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:38,721 INFO  L276                IsEmpty]: Start isEmpty. Operand 7834 states and 13058 transitions.
[2023-12-25 17:08:38,952 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5077
[2023-12-25 17:08:38,952 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:08:38,954 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:08:39,048 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0
[2023-12-25 17:08:39,164 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:08:39,164 INFO  L420      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:08:39,165 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:08:39,165 INFO  L85        PathProgramCache]: Analyzing trace with hash -2142852414, now seen corresponding path program 1 times
[2023-12-25 17:08:39,165 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:08:39,166 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947364768]
[2023-12-25 17:08:39,166 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:08:39,166 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:08:39,547 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:08:39,547 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [102198294]
[2023-12-25 17:08:39,548 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:08:39,548 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:08:39,548 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:08:39,549 INFO  L229       MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:08:39,551 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2023-12-25 17:08:46,498 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:08:46,696 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30666 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:08:46,757 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:08:46,943 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked.
[2023-12-25 17:08:46,944 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:08:46,944 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:08:46,944 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947364768]
[2023-12-25 17:08:46,944 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:08:46,944 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102198294]
[2023-12-25 17:08:46,944 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [102198294] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:08:46,944 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:08:46,944 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:08:46,945 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359988206]
[2023-12-25 17:08:46,945 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:08:46,947 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:08:46,947 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:08:46,951 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:08:46,951 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:08:46,951 INFO  L87              Difference]: Start difference. First operand 7834 states and 13058 transitions. Second operand  has 7 states, 7 states have (on average 667.2857142857143) internal successors, (4671), 7 states have internal predecessors, (4671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:47,387 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:08:47,388 INFO  L93              Difference]: Finished difference Result 21761 states and 36274 transitions.
[2023-12-25 17:08:47,388 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:08:47,389 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 667.2857142857143) internal successors, (4671), 7 states have internal predecessors, (4671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5076
[2023-12-25 17:08:47,392 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:08:47,401 INFO  L225             Difference]: With dead ends: 21761
[2023-12-25 17:08:47,401 INFO  L226             Difference]: Without dead ends: 14764
[2023-12-25 17:08:47,405 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5085 GetRequests, 5073 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:08:47,405 INFO  L413           NwaCegarLoop]: 12962 mSDtfsCounter, 33864 mSDsluCounter, 50817 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33864 SdHoareTripleChecker+Valid, 63779 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:08:47,406 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33864 Valid, 63779 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:08:47,413 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14764 states.
[2023-12-25 17:08:47,467 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14764 to 7836.
[2023-12-25 17:08:47,472 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7836 states, 7835 states have (on average 1.6668793873643906) internal successors, (13060), 7835 states have internal predecessors, (13060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:47,478 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7836 states to 7836 states and 13060 transitions.
[2023-12-25 17:08:47,478 INFO  L78                 Accepts]: Start accepts. Automaton has 7836 states and 13060 transitions. Word has length 5076
[2023-12-25 17:08:47,480 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:08:47,480 INFO  L495      AbstractCegarLoop]: Abstraction has 7836 states and 13060 transitions.
[2023-12-25 17:08:47,481 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 667.2857142857143) internal successors, (4671), 7 states have internal predecessors, (4671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:47,481 INFO  L276                IsEmpty]: Start isEmpty. Operand 7836 states and 13060 transitions.
[2023-12-25 17:08:47,604 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5078
[2023-12-25 17:08:47,604 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:08:47,605 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:08:47,689 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0
[2023-12-25 17:08:47,805 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22
[2023-12-25 17:08:47,806 INFO  L420      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:08:47,806 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:08:47,807 INFO  L85        PathProgramCache]: Analyzing trace with hash -998399842, now seen corresponding path program 1 times
[2023-12-25 17:08:47,807 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:08:47,807 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312971305]
[2023-12-25 17:08:47,807 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:08:47,807 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:08:48,182 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:08:48,182 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1759698055]
[2023-12-25 17:08:48,183 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:08:48,183 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:08:48,183 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:08:48,184 INFO  L229       MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:08:48,186 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2023-12-25 17:08:55,027 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:08:55,215 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30670 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:08:55,279 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:08:55,468 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked.
[2023-12-25 17:08:55,468 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:08:55,468 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:08:55,468 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312971305]
[2023-12-25 17:08:55,468 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:08:55,468 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759698055]
[2023-12-25 17:08:55,468 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759698055] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:08:55,468 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:08:55,469 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:08:55,469 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849627475]
[2023-12-25 17:08:55,469 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:08:55,472 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:08:55,472 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:08:55,474 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:08:55,474 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:08:55,474 INFO  L87              Difference]: Start difference. First operand 7836 states and 13060 transitions. Second operand  has 7 states, 7 states have (on average 667.7142857142857) internal successors, (4674), 7 states have internal predecessors, (4674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:55,902 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:08:55,902 INFO  L93              Difference]: Finished difference Result 21767 states and 36280 transitions.
[2023-12-25 17:08:55,902 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:08:55,904 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 667.7142857142857) internal successors, (4674), 7 states have internal predecessors, (4674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5077
[2023-12-25 17:08:55,907 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:08:55,922 INFO  L225             Difference]: With dead ends: 21767
[2023-12-25 17:08:55,922 INFO  L226             Difference]: Without dead ends: 14765
[2023-12-25 17:08:55,930 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5086 GetRequests, 5074 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:08:55,931 INFO  L413           NwaCegarLoop]: 12957 mSDtfsCounter, 33863 mSDsluCounter, 50802 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33863 SdHoareTripleChecker+Valid, 63759 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:08:55,931 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33863 Valid, 63759 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:08:55,943 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14765 states.
[2023-12-25 17:08:56,019 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14765 to 7838.
[2023-12-25 17:08:56,026 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7838 states, 7837 states have (on average 1.66670919994896) internal successors, (13062), 7837 states have internal predecessors, (13062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:56,034 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7838 states to 7838 states and 13062 transitions.
[2023-12-25 17:08:56,034 INFO  L78                 Accepts]: Start accepts. Automaton has 7838 states and 13062 transitions. Word has length 5077
[2023-12-25 17:08:56,036 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:08:56,036 INFO  L495      AbstractCegarLoop]: Abstraction has 7838 states and 13062 transitions.
[2023-12-25 17:08:56,037 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 667.7142857142857) internal successors, (4674), 7 states have internal predecessors, (4674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:08:56,037 INFO  L276                IsEmpty]: Start isEmpty. Operand 7838 states and 13062 transitions.
[2023-12-25 17:08:56,164 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5079
[2023-12-25 17:08:56,164 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:08:56,166 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:08:56,262 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0
[2023-12-25 17:08:56,375 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23
[2023-12-25 17:08:56,376 INFO  L420      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:08:56,376 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:08:56,377 INFO  L85        PathProgramCache]: Analyzing trace with hash -1298084310, now seen corresponding path program 1 times
[2023-12-25 17:08:56,377 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:08:56,377 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508603860]
[2023-12-25 17:08:56,378 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:08:56,378 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:08:56,767 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:08:56,767 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372605925]
[2023-12-25 17:08:56,768 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:08:56,768 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:08:56,768 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:08:56,769 INFO  L229       MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:08:56,770 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process
[2023-12-25 17:09:03,807 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:09:04,033 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30673 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:09:04,134 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:09:04,391 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked.
[2023-12-25 17:09:04,392 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:09:04,392 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:09:04,392 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508603860]
[2023-12-25 17:09:04,392 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:09:04,392 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372605925]
[2023-12-25 17:09:04,392 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372605925] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:09:04,392 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:09:04,393 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:09:04,393 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86896790]
[2023-12-25 17:09:04,393 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:09:04,397 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:09:04,397 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:09:04,400 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:09:04,400 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:09:04,401 INFO  L87              Difference]: Start difference. First operand 7838 states and 13062 transitions. Second operand  has 7 states, 7 states have (on average 668.1428571428571) internal successors, (4677), 7 states have internal predecessors, (4677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:04,851 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:09:04,851 INFO  L93              Difference]: Finished difference Result 21773 states and 36286 transitions.
[2023-12-25 17:09:04,851 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:09:04,853 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 668.1428571428571) internal successors, (4677), 7 states have internal predecessors, (4677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5078
[2023-12-25 17:09:04,858 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:09:04,873 INFO  L225             Difference]: With dead ends: 21773
[2023-12-25 17:09:04,874 INFO  L226             Difference]: Without dead ends: 14766
[2023-12-25 17:09:04,882 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5087 GetRequests, 5075 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:09:04,883 INFO  L413           NwaCegarLoop]: 12952 mSDtfsCounter, 33862 mSDsluCounter, 50787 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33862 SdHoareTripleChecker+Valid, 63739 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:09:04,883 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33862 Valid, 63739 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:09:04,894 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14766 states.
[2023-12-25 17:09:04,976 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14766 to 7840.
[2023-12-25 17:09:04,982 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7840 states, 7839 states have (on average 1.6665390993749203) internal successors, (13064), 7839 states have internal predecessors, (13064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:04,988 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7840 states to 7840 states and 13064 transitions.
[2023-12-25 17:09:04,988 INFO  L78                 Accepts]: Start accepts. Automaton has 7840 states and 13064 transitions. Word has length 5078
[2023-12-25 17:09:04,990 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:09:04,990 INFO  L495      AbstractCegarLoop]: Abstraction has 7840 states and 13064 transitions.
[2023-12-25 17:09:04,991 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 668.1428571428571) internal successors, (4677), 7 states have internal predecessors, (4677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:04,991 INFO  L276                IsEmpty]: Start isEmpty. Operand 7840 states and 13064 transitions.
[2023-12-25 17:09:05,143 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5080
[2023-12-25 17:09:05,144 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:09:05,145 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:09:05,252 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0
[2023-12-25 17:09:05,345 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:09:05,346 INFO  L420      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:09:05,346 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:09:05,346 INFO  L85        PathProgramCache]: Analyzing trace with hash 28855736, now seen corresponding path program 1 times
[2023-12-25 17:09:05,347 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:09:05,347 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596680987]
[2023-12-25 17:09:05,347 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:09:05,347 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:09:05,834 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:09:05,834 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [993546939]
[2023-12-25 17:09:05,835 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:09:05,835 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:09:05,835 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:09:05,836 INFO  L229       MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:09:05,837 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process
[2023-12-25 17:09:12,856 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:09:13,069 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30676 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:09:13,134 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:09:13,495 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked.
[2023-12-25 17:09:13,495 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:09:13,495 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:09:13,495 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596680987]
[2023-12-25 17:09:13,495 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:09:13,495 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993546939]
[2023-12-25 17:09:13,496 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [993546939] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:09:13,496 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:09:13,496 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:09:13,496 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105646692]
[2023-12-25 17:09:13,496 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:09:13,499 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:09:13,499 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:09:13,501 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:09:13,501 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:09:13,501 INFO  L87              Difference]: Start difference. First operand 7840 states and 13064 transitions. Second operand  has 7 states, 7 states have (on average 668.5714285714286) internal successors, (4680), 7 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:13,851 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:09:13,851 INFO  L93              Difference]: Finished difference Result 21779 states and 36292 transitions.
[2023-12-25 17:09:13,852 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:09:13,853 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 668.5714285714286) internal successors, (4680), 7 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5079
[2023-12-25 17:09:13,856 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:09:13,870 INFO  L225             Difference]: With dead ends: 21779
[2023-12-25 17:09:13,871 INFO  L226             Difference]: Without dead ends: 14767
[2023-12-25 17:09:13,878 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5088 GetRequests, 5076 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:09:13,879 INFO  L413           NwaCegarLoop]: 12947 mSDtfsCounter, 33861 mSDsluCounter, 50772 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33861 SdHoareTripleChecker+Valid, 63719 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:09:13,879 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33861 Valid, 63719 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:09:13,890 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14767 states.
[2023-12-25 17:09:13,964 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14767 to 7842.
[2023-12-25 17:09:13,971 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7842 states, 7841 states have (on average 1.6663690855758193) internal successors, (13066), 7841 states have internal predecessors, (13066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:13,979 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7842 states to 7842 states and 13066 transitions.
[2023-12-25 17:09:13,979 INFO  L78                 Accepts]: Start accepts. Automaton has 7842 states and 13066 transitions. Word has length 5079
[2023-12-25 17:09:13,981 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:09:13,981 INFO  L495      AbstractCegarLoop]: Abstraction has 7842 states and 13066 transitions.
[2023-12-25 17:09:13,982 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 668.5714285714286) internal successors, (4680), 7 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:13,983 INFO  L276                IsEmpty]: Start isEmpty. Operand 7842 states and 13066 transitions.
[2023-12-25 17:09:14,111 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5081
[2023-12-25 17:09:14,111 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:09:14,112 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:09:14,204 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0
[2023-12-25 17:09:14,312 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:09:14,313 INFO  L420      AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:09:14,313 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:09:14,313 INFO  L85        PathProgramCache]: Analyzing trace with hash -291772912, now seen corresponding path program 1 times
[2023-12-25 17:09:14,314 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:09:14,314 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445571572]
[2023-12-25 17:09:14,314 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:09:14,314 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:09:14,795 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:09:14,795 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [457670407]
[2023-12-25 17:09:14,796 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:09:14,796 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:09:14,796 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:09:14,797 INFO  L229       MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:09:14,798 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process
[2023-12-25 17:09:21,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:09:21,968 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30679 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:09:22,030 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:09:22,234 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 398 trivial. 0 not checked.
[2023-12-25 17:09:22,234 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:09:22,234 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:09:22,234 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445571572]
[2023-12-25 17:09:22,234 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:09:22,234 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457670407]
[2023-12-25 17:09:22,234 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [457670407] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:09:22,234 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:09:22,235 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:09:22,235 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200561427]
[2023-12-25 17:09:22,235 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:09:22,237 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:09:22,237 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:09:22,240 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:09:22,240 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:09:22,240 INFO  L87              Difference]: Start difference. First operand 7842 states and 13066 transitions. Second operand  has 7 states, 7 states have (on average 669.0) internal successors, (4683), 7 states have internal predecessors, (4683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:22,611 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:09:22,611 INFO  L93              Difference]: Finished difference Result 21785 states and 36298 transitions.
[2023-12-25 17:09:22,611 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:09:22,613 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 669.0) internal successors, (4683), 7 states have internal predecessors, (4683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5080
[2023-12-25 17:09:22,726 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:09:22,734 INFO  L225             Difference]: With dead ends: 21785
[2023-12-25 17:09:22,735 INFO  L226             Difference]: Without dead ends: 14768
[2023-12-25 17:09:22,737 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5089 GetRequests, 5077 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:09:22,738 INFO  L413           NwaCegarLoop]: 12942 mSDtfsCounter, 33860 mSDsluCounter, 50757 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33860 SdHoareTripleChecker+Valid, 63699 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:09:22,738 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33860 Valid, 63699 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:09:22,745 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14768 states.
[2023-12-25 17:09:22,798 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14768 to 7844.
[2023-12-25 17:09:22,804 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7844 states, 7843 states have (on average 1.6661991584852736) internal successors, (13068), 7843 states have internal predecessors, (13068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:22,811 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7844 states to 7844 states and 13068 transitions.
[2023-12-25 17:09:22,811 INFO  L78                 Accepts]: Start accepts. Automaton has 7844 states and 13068 transitions. Word has length 5080
[2023-12-25 17:09:22,813 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:09:22,813 INFO  L495      AbstractCegarLoop]: Abstraction has 7844 states and 13068 transitions.
[2023-12-25 17:09:22,814 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 669.0) internal successors, (4683), 7 states have internal predecessors, (4683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:22,814 INFO  L276                IsEmpty]: Start isEmpty. Operand 7844 states and 13068 transitions.
[2023-12-25 17:09:22,938 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5082
[2023-12-25 17:09:22,938 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:09:22,939 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:09:23,042 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0
[2023-12-25 17:09:23,140 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26
[2023-12-25 17:09:23,140 INFO  L420      AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:09:23,140 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:09:23,141 INFO  L85        PathProgramCache]: Analyzing trace with hash 155214676, now seen corresponding path program 1 times
[2023-12-25 17:09:23,141 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:09:23,141 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493514776]
[2023-12-25 17:09:23,141 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:09:23,141 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:09:23,529 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:09:23,530 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [509722736]
[2023-12-25 17:09:23,531 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:09:23,531 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:09:23,531 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:09:23,532 INFO  L229       MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:09:23,536 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process
[2023-12-25 17:09:30,448 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:09:30,658 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30683 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:09:30,720 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:09:30,900 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked.
[2023-12-25 17:09:30,901 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:09:30,901 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:09:30,901 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493514776]
[2023-12-25 17:09:30,901 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:09:30,901 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509722736]
[2023-12-25 17:09:30,901 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [509722736] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:09:30,901 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:09:30,901 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:09:30,901 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553278339]
[2023-12-25 17:09:30,902 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:09:30,904 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:09:30,904 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:09:30,906 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:09:30,907 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:09:30,907 INFO  L87              Difference]: Start difference. First operand 7844 states and 13068 transitions. Second operand  has 7 states, 7 states have (on average 669.4285714285714) internal successors, (4686), 7 states have internal predecessors, (4686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:31,361 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:09:31,361 INFO  L93              Difference]: Finished difference Result 21791 states and 36304 transitions.
[2023-12-25 17:09:31,361 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:09:31,362 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 669.4285714285714) internal successors, (4686), 7 states have internal predecessors, (4686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5081
[2023-12-25 17:09:31,365 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:09:31,376 INFO  L225             Difference]: With dead ends: 21791
[2023-12-25 17:09:31,376 INFO  L226             Difference]: Without dead ends: 14769
[2023-12-25 17:09:31,381 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5090 GetRequests, 5078 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:09:31,382 INFO  L413           NwaCegarLoop]: 12937 mSDtfsCounter, 33859 mSDsluCounter, 50742 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33859 SdHoareTripleChecker+Valid, 63679 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:09:31,382 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33859 Valid, 63679 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:09:31,392 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14769 states.
[2023-12-25 17:09:31,453 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14769 to 7846.
[2023-12-25 17:09:31,459 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7846 states, 7845 states have (on average 1.6660293180369663) internal successors, (13070), 7845 states have internal predecessors, (13070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:31,465 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7846 states to 7846 states and 13070 transitions.
[2023-12-25 17:09:31,465 INFO  L78                 Accepts]: Start accepts. Automaton has 7846 states and 13070 transitions. Word has length 5081
[2023-12-25 17:09:31,467 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:09:31,467 INFO  L495      AbstractCegarLoop]: Abstraction has 7846 states and 13070 transitions.
[2023-12-25 17:09:31,468 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 669.4285714285714) internal successors, (4686), 7 states have internal predecessors, (4686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:31,468 INFO  L276                IsEmpty]: Start isEmpty. Operand 7846 states and 13070 transitions.
[2023-12-25 17:09:31,594 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5083
[2023-12-25 17:09:31,594 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:09:31,595 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:09:31,704 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0
[2023-12-25 17:09:31,795 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27
[2023-12-25 17:09:31,796 INFO  L420      AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:09:31,796 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:09:31,797 INFO  L85        PathProgramCache]: Analyzing trace with hash 1820482168, now seen corresponding path program 1 times
[2023-12-25 17:09:31,797 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:09:31,797 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407436253]
[2023-12-25 17:09:31,797 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:09:31,797 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:09:32,203 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:09:32,203 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1176674538]
[2023-12-25 17:09:32,204 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:09:32,204 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:09:32,204 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:09:32,205 INFO  L229       MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:09:32,205 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process
[2023-12-25 17:09:39,121 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:09:39,328 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30686 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:09:39,390 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:09:39,580 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked.
[2023-12-25 17:09:39,580 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:09:39,580 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:09:39,580 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407436253]
[2023-12-25 17:09:39,580 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:09:39,580 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176674538]
[2023-12-25 17:09:39,580 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176674538] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:09:39,580 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:09:39,581 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:09:39,581 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071077736]
[2023-12-25 17:09:39,581 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:09:39,583 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:09:39,583 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:09:39,585 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:09:39,585 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:09:39,586 INFO  L87              Difference]: Start difference. First operand 7846 states and 13070 transitions. Second operand  has 7 states, 7 states have (on average 669.8571428571429) internal successors, (4689), 7 states have internal predecessors, (4689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:40,096 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:09:40,096 INFO  L93              Difference]: Finished difference Result 21797 states and 36310 transitions.
[2023-12-25 17:09:40,097 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:09:40,098 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 669.8571428571429) internal successors, (4689), 7 states have internal predecessors, (4689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5082
[2023-12-25 17:09:40,101 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:09:40,111 INFO  L225             Difference]: With dead ends: 21797
[2023-12-25 17:09:40,111 INFO  L226             Difference]: Without dead ends: 14770
[2023-12-25 17:09:40,114 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5091 GetRequests, 5079 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:09:40,115 INFO  L413           NwaCegarLoop]: 12932 mSDtfsCounter, 33858 mSDsluCounter, 50727 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33858 SdHoareTripleChecker+Valid, 63659 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:09:40,115 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33858 Valid, 63659 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:09:40,126 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14770 states.
[2023-12-25 17:09:40,187 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14770 to 7848.
[2023-12-25 17:09:40,194 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7848 states, 7847 states have (on average 1.665859564164649) internal successors, (13072), 7847 states have internal predecessors, (13072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:40,202 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7848 states to 7848 states and 13072 transitions.
[2023-12-25 17:09:40,202 INFO  L78                 Accepts]: Start accepts. Automaton has 7848 states and 13072 transitions. Word has length 5082
[2023-12-25 17:09:40,205 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:09:40,205 INFO  L495      AbstractCegarLoop]: Abstraction has 7848 states and 13072 transitions.
[2023-12-25 17:09:40,205 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 669.8571428571429) internal successors, (4689), 7 states have internal predecessors, (4689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:40,205 INFO  L276                IsEmpty]: Start isEmpty. Operand 7848 states and 13072 transitions.
[2023-12-25 17:09:40,332 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5084
[2023-12-25 17:09:40,332 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:09:40,333 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:09:40,441 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0
[2023-12-25 17:09:40,534 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28
[2023-12-25 17:09:40,534 INFO  L420      AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:09:40,535 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:09:40,535 INFO  L85        PathProgramCache]: Analyzing trace with hash 1048947822, now seen corresponding path program 1 times
[2023-12-25 17:09:40,535 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:09:40,535 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374787419]
[2023-12-25 17:09:40,536 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:09:40,536 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:09:40,927 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:09:40,927 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323295822]
[2023-12-25 17:09:40,928 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:09:40,928 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:09:40,929 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:09:40,929 INFO  L229       MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:09:40,930 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process
[2023-12-25 17:09:47,926 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:09:48,124 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30689 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:09:48,182 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:09:48,362 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2023-12-25 17:09:48,362 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:09:48,363 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:09:48,363 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374787419]
[2023-12-25 17:09:48,363 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:09:48,363 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323295822]
[2023-12-25 17:09:48,363 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323295822] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:09:48,363 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:09:48,363 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:09:48,363 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924814232]
[2023-12-25 17:09:48,363 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:09:48,366 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:09:48,366 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:09:48,368 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:09:48,368 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:09:48,369 INFO  L87              Difference]: Start difference. First operand 7848 states and 13072 transitions. Second operand  has 7 states, 7 states have (on average 670.2857142857143) internal successors, (4692), 7 states have internal predecessors, (4692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:48,722 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:09:48,722 INFO  L93              Difference]: Finished difference Result 21803 states and 36316 transitions.
[2023-12-25 17:09:48,723 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:09:48,724 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 670.2857142857143) internal successors, (4692), 7 states have internal predecessors, (4692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5083
[2023-12-25 17:09:48,727 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:09:48,742 INFO  L225             Difference]: With dead ends: 21803
[2023-12-25 17:09:48,742 INFO  L226             Difference]: Without dead ends: 14771
[2023-12-25 17:09:48,750 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5092 GetRequests, 5080 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:09:48,751 INFO  L413           NwaCegarLoop]: 12927 mSDtfsCounter, 33857 mSDsluCounter, 50712 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33857 SdHoareTripleChecker+Valid, 63639 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:09:48,751 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33857 Valid, 63639 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:09:48,761 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14771 states.
[2023-12-25 17:09:48,831 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14771 to 7850.
[2023-12-25 17:09:48,837 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7850 states, 7849 states have (on average 1.6656898968021403) internal successors, (13074), 7849 states have internal predecessors, (13074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:48,845 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7850 states to 7850 states and 13074 transitions.
[2023-12-25 17:09:48,845 INFO  L78                 Accepts]: Start accepts. Automaton has 7850 states and 13074 transitions. Word has length 5083
[2023-12-25 17:09:48,847 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:09:48,847 INFO  L495      AbstractCegarLoop]: Abstraction has 7850 states and 13074 transitions.
[2023-12-25 17:09:48,848 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 670.2857142857143) internal successors, (4692), 7 states have internal predecessors, (4692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:48,848 INFO  L276                IsEmpty]: Start isEmpty. Operand 7850 states and 13074 transitions.
[2023-12-25 17:09:49,072 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5085
[2023-12-25 17:09:49,072 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:09:49,073 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:09:49,179 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0
[2023-12-25 17:09:49,274 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:09:49,274 INFO  L420      AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:09:49,274 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:09:49,275 INFO  L85        PathProgramCache]: Analyzing trace with hash -1478379938, now seen corresponding path program 1 times
[2023-12-25 17:09:49,275 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:09:49,275 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481502467]
[2023-12-25 17:09:49,275 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:09:49,275 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:09:49,679 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:09:49,679 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1282224879]
[2023-12-25 17:09:49,680 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:09:49,680 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:09:49,680 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:09:49,681 INFO  L229       MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:09:49,683 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process
[2023-12-25 17:09:56,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:09:56,976 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30692 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:09:57,038 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:09:57,414 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked.
[2023-12-25 17:09:57,415 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:09:57,415 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:09:57,415 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481502467]
[2023-12-25 17:09:57,415 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:09:57,415 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282224879]
[2023-12-25 17:09:57,415 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282224879] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:09:57,415 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:09:57,416 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:09:57,416 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613918224]
[2023-12-25 17:09:57,416 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:09:57,418 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:09:57,418 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:09:57,420 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:09:57,420 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:09:57,420 INFO  L87              Difference]: Start difference. First operand 7850 states and 13074 transitions. Second operand  has 7 states, 7 states have (on average 670.7142857142857) internal successors, (4695), 7 states have internal predecessors, (4695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:57,766 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:09:57,767 INFO  L93              Difference]: Finished difference Result 21809 states and 36322 transitions.
[2023-12-25 17:09:57,767 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:09:57,768 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 670.7142857142857) internal successors, (4695), 7 states have internal predecessors, (4695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5084
[2023-12-25 17:09:57,771 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:09:57,785 INFO  L225             Difference]: With dead ends: 21809
[2023-12-25 17:09:57,785 INFO  L226             Difference]: Without dead ends: 14772
[2023-12-25 17:09:57,792 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5093 GetRequests, 5081 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:09:57,793 INFO  L413           NwaCegarLoop]: 12922 mSDtfsCounter, 33856 mSDsluCounter, 50697 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33856 SdHoareTripleChecker+Valid, 63619 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:09:57,793 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33856 Valid, 63619 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:09:57,802 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14772 states.
[2023-12-25 17:09:57,873 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14772 to 7852.
[2023-12-25 17:09:57,880 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7852 states, 7851 states have (on average 1.665520315883327) internal successors, (13076), 7851 states have internal predecessors, (13076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:57,886 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7852 states to 7852 states and 13076 transitions.
[2023-12-25 17:09:57,887 INFO  L78                 Accepts]: Start accepts. Automaton has 7852 states and 13076 transitions. Word has length 5084
[2023-12-25 17:09:57,889 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:09:57,889 INFO  L495      AbstractCegarLoop]: Abstraction has 7852 states and 13076 transitions.
[2023-12-25 17:09:57,890 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 670.7142857142857) internal successors, (4695), 7 states have internal predecessors, (4695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:09:57,890 INFO  L276                IsEmpty]: Start isEmpty. Operand 7852 states and 13076 transitions.
[2023-12-25 17:09:58,017 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5086
[2023-12-25 17:09:58,018 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:09:58,019 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:09:58,122 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0
[2023-12-25 17:09:58,219 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:09:58,220 INFO  L420      AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:09:58,220 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:09:58,221 INFO  L85        PathProgramCache]: Analyzing trace with hash 1404365578, now seen corresponding path program 1 times
[2023-12-25 17:09:58,221 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:09:58,221 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857442328]
[2023-12-25 17:09:58,221 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:09:58,221 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:09:58,715 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:09:58,715 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [753834636]
[2023-12-25 17:09:58,716 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:09:58,717 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:09:58,717 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:09:58,717 INFO  L229       MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:09:58,718 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process
[2023-12-25 17:10:05,500 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:10:05,702 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30696 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:10:05,763 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:10:05,944 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked.
[2023-12-25 17:10:05,944 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:10:05,944 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:10:05,944 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857442328]
[2023-12-25 17:10:05,944 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:10:05,944 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753834636]
[2023-12-25 17:10:05,944 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [753834636] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:10:05,944 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:10:05,945 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:10:05,945 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765173166]
[2023-12-25 17:10:05,945 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:10:05,947 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:10:05,947 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:10:05,949 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:10:05,949 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:10:05,950 INFO  L87              Difference]: Start difference. First operand 7852 states and 13076 transitions. Second operand  has 7 states, 7 states have (on average 671.1428571428571) internal successors, (4698), 7 states have internal predecessors, (4698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:06,392 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:10:06,393 INFO  L93              Difference]: Finished difference Result 21815 states and 36328 transitions.
[2023-12-25 17:10:06,393 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:10:06,394 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 671.1428571428571) internal successors, (4698), 7 states have internal predecessors, (4698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5085
[2023-12-25 17:10:06,397 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:10:06,409 INFO  L225             Difference]: With dead ends: 21815
[2023-12-25 17:10:06,409 INFO  L226             Difference]: Without dead ends: 14773
[2023-12-25 17:10:06,416 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5094 GetRequests, 5082 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:10:06,416 INFO  L413           NwaCegarLoop]: 12917 mSDtfsCounter, 33855 mSDsluCounter, 50682 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33855 SdHoareTripleChecker+Valid, 63599 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:10:06,416 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33855 Valid, 63599 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:10:06,425 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14773 states.
[2023-12-25 17:10:06,488 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14773 to 7854.
[2023-12-25 17:10:06,494 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7854 states, 7853 states have (on average 1.6653508213421622) internal successors, (13078), 7853 states have internal predecessors, (13078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:06,500 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7854 states to 7854 states and 13078 transitions.
[2023-12-25 17:10:06,501 INFO  L78                 Accepts]: Start accepts. Automaton has 7854 states and 13078 transitions. Word has length 5085
[2023-12-25 17:10:06,503 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:10:06,503 INFO  L495      AbstractCegarLoop]: Abstraction has 7854 states and 13078 transitions.
[2023-12-25 17:10:06,503 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 671.1428571428571) internal successors, (4698), 7 states have internal predecessors, (4698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:06,503 INFO  L276                IsEmpty]: Start isEmpty. Operand 7854 states and 13078 transitions.
[2023-12-25 17:10:06,630 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5087
[2023-12-25 17:10:06,630 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:10:06,631 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:10:06,730 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0
[2023-12-25 17:10:06,831 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:10:06,832 INFO  L420      AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:10:06,832 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:10:06,833 INFO  L85        PathProgramCache]: Analyzing trace with hash 126122950, now seen corresponding path program 1 times
[2023-12-25 17:10:06,833 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:10:06,833 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000635497]
[2023-12-25 17:10:06,833 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:10:06,833 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:10:07,216 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:10:07,216 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1652324747]
[2023-12-25 17:10:07,217 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:10:07,217 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:10:07,217 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:10:07,218 INFO  L229       MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:10:07,228 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process
[2023-12-25 17:10:14,104 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:10:14,290 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30699 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-25 17:10:14,344 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:10:14,531 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked.
[2023-12-25 17:10:14,531 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:10:14,531 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:10:14,531 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000635497]
[2023-12-25 17:10:14,531 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:10:14,531 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652324747]
[2023-12-25 17:10:14,531 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652324747] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:10:14,531 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:10:14,532 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-25 17:10:14,532 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747996405]
[2023-12-25 17:10:14,532 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:10:14,534 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-25 17:10:14,534 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:10:14,536 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-25 17:10:14,536 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2023-12-25 17:10:14,537 INFO  L87              Difference]: Start difference. First operand 7854 states and 13078 transitions. Second operand  has 8 states, 8 states have (on average 587.625) internal successors, (4701), 8 states have internal predecessors, (4701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:14,915 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:10:14,915 INFO  L93              Difference]: Finished difference Result 21821 states and 36334 transitions.
[2023-12-25 17:10:14,915 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:10:14,916 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 587.625) internal successors, (4701), 8 states have internal predecessors, (4701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5086
[2023-12-25 17:10:14,919 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:10:14,931 INFO  L225             Difference]: With dead ends: 21821
[2023-12-25 17:10:14,931 INFO  L226             Difference]: Without dead ends: 14774
[2023-12-25 17:10:14,938 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5095 GetRequests, 5082 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210
[2023-12-25 17:10:14,938 INFO  L413           NwaCegarLoop]: 12912 mSDtfsCounter, 33854 mSDsluCounter, 62169 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33854 SdHoareTripleChecker+Valid, 75081 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:10:14,938 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33854 Valid, 75081 Invalid, 54 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:10:14,947 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14774 states.
[2023-12-25 17:10:15,008 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14774 to 7856.
[2023-12-25 17:10:15,015 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7856 states, 7855 states have (on average 1.665181413112667) internal successors, (13080), 7855 states have internal predecessors, (13080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:15,176 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7856 states to 7856 states and 13080 transitions.
[2023-12-25 17:10:15,176 INFO  L78                 Accepts]: Start accepts. Automaton has 7856 states and 13080 transitions. Word has length 5086
[2023-12-25 17:10:15,178 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:10:15,178 INFO  L495      AbstractCegarLoop]: Abstraction has 7856 states and 13080 transitions.
[2023-12-25 17:10:15,179 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 587.625) internal successors, (4701), 8 states have internal predecessors, (4701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:15,179 INFO  L276                IsEmpty]: Start isEmpty. Operand 7856 states and 13080 transitions.
[2023-12-25 17:10:15,309 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5088
[2023-12-25 17:10:15,309 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:10:15,310 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:10:15,407 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0
[2023-12-25 17:10:15,511 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32
[2023-12-25 17:10:15,511 INFO  L420      AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:10:15,511 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:10:15,512 INFO  L85        PathProgramCache]: Analyzing trace with hash -351711196, now seen corresponding path program 1 times
[2023-12-25 17:10:15,512 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:10:15,512 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870185131]
[2023-12-25 17:10:15,512 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:10:15,512 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:10:15,903 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:10:15,903 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [705475980]
[2023-12-25 17:10:15,904 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:10:15,905 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:10:15,905 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:10:15,906 INFO  L229       MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:10:15,906 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process
[2023-12-25 17:10:22,926 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:10:23,133 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30702 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:10:23,191 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:10:23,378 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked.
[2023-12-25 17:10:23,379 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:10:23,379 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:10:23,379 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870185131]
[2023-12-25 17:10:23,379 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:10:23,379 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705475980]
[2023-12-25 17:10:23,379 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [705475980] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:10:23,379 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:10:23,379 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:10:23,379 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073964173]
[2023-12-25 17:10:23,380 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:10:23,383 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:10:23,383 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:10:23,385 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:10:23,385 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:10:23,385 INFO  L87              Difference]: Start difference. First operand 7856 states and 13080 transitions. Second operand  has 7 states, 7 states have (on average 672.0) internal successors, (4704), 7 states have internal predecessors, (4704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:23,719 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:10:23,719 INFO  L93              Difference]: Finished difference Result 21827 states and 36340 transitions.
[2023-12-25 17:10:23,719 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:10:23,721 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 672.0) internal successors, (4704), 7 states have internal predecessors, (4704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5087
[2023-12-25 17:10:23,724 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:10:23,735 INFO  L225             Difference]: With dead ends: 21827
[2023-12-25 17:10:23,735 INFO  L226             Difference]: Without dead ends: 14775
[2023-12-25 17:10:23,742 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5096 GetRequests, 5084 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:10:23,742 INFO  L413           NwaCegarLoop]: 12907 mSDtfsCounter, 33853 mSDsluCounter, 50652 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33853 SdHoareTripleChecker+Valid, 63559 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:10:23,742 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33853 Valid, 63559 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:10:23,750 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14775 states.
[2023-12-25 17:10:23,814 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14775 to 7858.
[2023-12-25 17:10:23,821 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7858 states, 7857 states have (on average 1.6650120911289297) internal successors, (13082), 7857 states have internal predecessors, (13082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:23,828 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7858 states to 7858 states and 13082 transitions.
[2023-12-25 17:10:23,829 INFO  L78                 Accepts]: Start accepts. Automaton has 7858 states and 13082 transitions. Word has length 5087
[2023-12-25 17:10:23,832 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:10:23,832 INFO  L495      AbstractCegarLoop]: Abstraction has 7858 states and 13082 transitions.
[2023-12-25 17:10:23,833 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 672.0) internal successors, (4704), 7 states have internal predecessors, (4704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:23,833 INFO  L276                IsEmpty]: Start isEmpty. Operand 7858 states and 13082 transitions.
[2023-12-25 17:10:24,052 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5089
[2023-12-25 17:10:24,052 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:10:24,053 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:10:24,147 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0
[2023-12-25 17:10:24,255 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:10:24,256 INFO  L420      AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:10:24,256 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:10:24,257 INFO  L85        PathProgramCache]: Analyzing trace with hash -356279380, now seen corresponding path program 1 times
[2023-12-25 17:10:24,257 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:10:24,257 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099229979]
[2023-12-25 17:10:24,257 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:10:24,257 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:10:24,623 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:10:24,624 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1307255546]
[2023-12-25 17:10:24,625 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:10:24,625 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:10:24,625 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:10:24,626 INFO  L229       MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:10:24,626 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process
[2023-12-25 17:10:31,247 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:10:31,437 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30705 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:10:31,493 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:10:31,671 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked.
[2023-12-25 17:10:31,671 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:10:31,671 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:10:31,671 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099229979]
[2023-12-25 17:10:31,672 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:10:31,672 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307255546]
[2023-12-25 17:10:31,672 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307255546] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:10:31,672 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:10:31,672 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:10:31,672 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217245030]
[2023-12-25 17:10:31,672 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:10:31,675 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:10:31,675 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:10:31,677 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:10:31,677 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:10:31,677 INFO  L87              Difference]: Start difference. First operand 7858 states and 13082 transitions. Second operand  has 7 states, 7 states have (on average 672.4285714285714) internal successors, (4707), 7 states have internal predecessors, (4707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:32,121 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:10:32,121 INFO  L93              Difference]: Finished difference Result 21833 states and 36346 transitions.
[2023-12-25 17:10:32,121 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:10:32,123 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 672.4285714285714) internal successors, (4707), 7 states have internal predecessors, (4707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5088
[2023-12-25 17:10:32,126 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:10:32,141 INFO  L225             Difference]: With dead ends: 21833
[2023-12-25 17:10:32,141 INFO  L226             Difference]: Without dead ends: 14776
[2023-12-25 17:10:32,149 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5097 GetRequests, 5085 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:10:32,149 INFO  L413           NwaCegarLoop]: 12902 mSDtfsCounter, 33852 mSDsluCounter, 50637 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33852 SdHoareTripleChecker+Valid, 63539 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-25 17:10:32,149 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33852 Valid, 63539 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-25 17:10:32,158 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14776 states.
[2023-12-25 17:10:32,219 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14776 to 7860.
[2023-12-25 17:10:32,225 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7860 states, 7859 states have (on average 1.664842855325105) internal successors, (13084), 7859 states have internal predecessors, (13084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:32,232 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7860 states to 7860 states and 13084 transitions.
[2023-12-25 17:10:32,232 INFO  L78                 Accepts]: Start accepts. Automaton has 7860 states and 13084 transitions. Word has length 5088
[2023-12-25 17:10:32,234 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:10:32,234 INFO  L495      AbstractCegarLoop]: Abstraction has 7860 states and 13084 transitions.
[2023-12-25 17:10:32,235 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 672.4285714285714) internal successors, (4707), 7 states have internal predecessors, (4707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:32,235 INFO  L276                IsEmpty]: Start isEmpty. Operand 7860 states and 13084 transitions.
[2023-12-25 17:10:32,360 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5090
[2023-12-25 17:10:32,360 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:10:32,362 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:10:32,456 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0
[2023-12-25 17:10:32,562 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:10:32,562 INFO  L420      AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:10:32,563 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:10:32,563 INFO  L85        PathProgramCache]: Analyzing trace with hash 249083840, now seen corresponding path program 1 times
[2023-12-25 17:10:32,563 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:10:32,563 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773566099]
[2023-12-25 17:10:32,564 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:10:32,564 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:10:32,938 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:10:32,938 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [991583661]
[2023-12-25 17:10:32,939 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:10:32,939 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:10:32,939 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:10:32,940 INFO  L229       MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:10:32,941 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process
[2023-12-25 17:10:39,888 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:10:40,080 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30709 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:10:40,136 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:10:40,324 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked.
[2023-12-25 17:10:40,324 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:10:40,324 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:10:40,324 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773566099]
[2023-12-25 17:10:40,324 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:10:40,325 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991583661]
[2023-12-25 17:10:40,325 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [991583661] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:10:40,325 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:10:40,325 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:10:40,325 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129209281]
[2023-12-25 17:10:40,325 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:10:40,328 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:10:40,328 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:10:40,329 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:10:40,330 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:10:40,330 INFO  L87              Difference]: Start difference. First operand 7860 states and 13084 transitions. Second operand  has 7 states, 7 states have (on average 672.8571428571429) internal successors, (4710), 7 states have internal predecessors, (4710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:40,672 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:10:40,672 INFO  L93              Difference]: Finished difference Result 21839 states and 36352 transitions.
[2023-12-25 17:10:40,673 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:10:40,674 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 672.8571428571429) internal successors, (4710), 7 states have internal predecessors, (4710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5089
[2023-12-25 17:10:40,677 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:10:40,692 INFO  L225             Difference]: With dead ends: 21839
[2023-12-25 17:10:40,692 INFO  L226             Difference]: Without dead ends: 14777
[2023-12-25 17:10:40,700 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5098 GetRequests, 5086 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:10:40,700 INFO  L413           NwaCegarLoop]: 12897 mSDtfsCounter, 33851 mSDsluCounter, 50622 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33851 SdHoareTripleChecker+Valid, 63519 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:10:40,701 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33851 Valid, 63519 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:10:40,710 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14777 states.
[2023-12-25 17:10:40,777 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14777 to 7862.
[2023-12-25 17:10:40,783 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7862 states, 7861 states have (on average 1.6646737056354153) internal successors, (13086), 7861 states have internal predecessors, (13086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:40,789 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7862 states to 7862 states and 13086 transitions.
[2023-12-25 17:10:40,790 INFO  L78                 Accepts]: Start accepts. Automaton has 7862 states and 13086 transitions. Word has length 5089
[2023-12-25 17:10:40,791 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:10:40,792 INFO  L495      AbstractCegarLoop]: Abstraction has 7862 states and 13086 transitions.
[2023-12-25 17:10:40,793 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 672.8571428571429) internal successors, (4710), 7 states have internal predecessors, (4710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:40,793 INFO  L276                IsEmpty]: Start isEmpty. Operand 7862 states and 13086 transitions.
[2023-12-25 17:10:41,040 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5091
[2023-12-25 17:10:41,040 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:10:41,041 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:10:41,138 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0
[2023-12-25 17:10:41,244 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35
[2023-12-25 17:10:41,244 INFO  L420      AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:10:41,245 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:10:41,245 INFO  L85        PathProgramCache]: Analyzing trace with hash -1919765996, now seen corresponding path program 1 times
[2023-12-25 17:10:41,245 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:10:41,245 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032648879]
[2023-12-25 17:10:41,246 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:10:41,246 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:10:41,630 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:10:41,630 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [130524073]
[2023-12-25 17:10:41,631 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:10:41,631 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:10:41,631 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:10:41,633 INFO  L229       MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:10:41,635 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process
[2023-12-25 17:10:48,318 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:10:48,519 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30712 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:10:48,582 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:10:48,768 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked.
[2023-12-25 17:10:48,768 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:10:48,768 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:10:48,768 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032648879]
[2023-12-25 17:10:48,768 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:10:48,768 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130524073]
[2023-12-25 17:10:48,768 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [130524073] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:10:48,768 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:10:48,769 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:10:48,769 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813506571]
[2023-12-25 17:10:48,769 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:10:48,771 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:10:48,771 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:10:48,773 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:10:48,773 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:10:48,773 INFO  L87              Difference]: Start difference. First operand 7862 states and 13086 transitions. Second operand  has 7 states, 7 states have (on average 673.2857142857143) internal successors, (4713), 7 states have internal predecessors, (4713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:49,234 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:10:49,234 INFO  L93              Difference]: Finished difference Result 21845 states and 36358 transitions.
[2023-12-25 17:10:49,234 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:10:49,235 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 673.2857142857143) internal successors, (4713), 7 states have internal predecessors, (4713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5090
[2023-12-25 17:10:49,238 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:10:49,249 INFO  L225             Difference]: With dead ends: 21845
[2023-12-25 17:10:49,249 INFO  L226             Difference]: Without dead ends: 14778
[2023-12-25 17:10:49,254 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5099 GetRequests, 5087 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:10:49,254 INFO  L413           NwaCegarLoop]: 12892 mSDtfsCounter, 33850 mSDsluCounter, 50607 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33850 SdHoareTripleChecker+Valid, 63499 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:10:49,254 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33850 Valid, 63499 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:10:49,263 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14778 states.
[2023-12-25 17:10:49,324 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14778 to 7864.
[2023-12-25 17:10:49,330 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7864 states, 7863 states have (on average 1.6645046419941498) internal successors, (13088), 7863 states have internal predecessors, (13088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:49,336 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7864 states to 7864 states and 13088 transitions.
[2023-12-25 17:10:49,336 INFO  L78                 Accepts]: Start accepts. Automaton has 7864 states and 13088 transitions. Word has length 5090
[2023-12-25 17:10:49,338 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:10:49,338 INFO  L495      AbstractCegarLoop]: Abstraction has 7864 states and 13088 transitions.
[2023-12-25 17:10:49,338 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 673.2857142857143) internal successors, (4713), 7 states have internal predecessors, (4713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:49,338 INFO  L276                IsEmpty]: Start isEmpty. Operand 7864 states and 13088 transitions.
[2023-12-25 17:10:49,463 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5092
[2023-12-25 17:10:49,463 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:10:49,464 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:10:49,558 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0
[2023-12-25 17:10:49,676 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36
[2023-12-25 17:10:49,676 INFO  L420      AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:10:49,676 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:10:49,677 INFO  L85        PathProgramCache]: Analyzing trace with hash -465520422, now seen corresponding path program 1 times
[2023-12-25 17:10:49,677 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:10:49,677 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229598162]
[2023-12-25 17:10:49,677 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:10:49,678 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:10:50,052 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:10:50,052 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [618597352]
[2023-12-25 17:10:50,053 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:10:50,053 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:10:50,053 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:10:50,054 INFO  L229       MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:10:50,056 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process
[2023-12-25 17:10:56,966 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:10:57,169 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30715 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:10:57,220 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:10:57,398 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked.
[2023-12-25 17:10:57,398 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:10:57,398 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:10:57,398 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229598162]
[2023-12-25 17:10:57,398 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:10:57,398 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618597352]
[2023-12-25 17:10:57,398 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [618597352] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:10:57,398 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:10:57,399 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:10:57,399 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708071631]
[2023-12-25 17:10:57,399 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:10:57,401 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:10:57,401 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:10:57,403 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:10:57,403 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:10:57,404 INFO  L87              Difference]: Start difference. First operand 7864 states and 13088 transitions. Second operand  has 7 states, 7 states have (on average 673.7142857142857) internal successors, (4716), 7 states have internal predecessors, (4716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:57,741 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:10:57,741 INFO  L93              Difference]: Finished difference Result 21851 states and 36364 transitions.
[2023-12-25 17:10:57,742 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:10:57,743 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 673.7142857142857) internal successors, (4716), 7 states have internal predecessors, (4716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5091
[2023-12-25 17:10:57,746 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:10:57,758 INFO  L225             Difference]: With dead ends: 21851
[2023-12-25 17:10:57,758 INFO  L226             Difference]: Without dead ends: 14779
[2023-12-25 17:10:57,765 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5100 GetRequests, 5088 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:10:57,765 INFO  L413           NwaCegarLoop]: 12887 mSDtfsCounter, 33849 mSDsluCounter, 50592 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33849 SdHoareTripleChecker+Valid, 63479 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:10:57,765 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33849 Valid, 63479 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:10:57,773 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14779 states.
[2023-12-25 17:10:57,831 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14779 to 7866.
[2023-12-25 17:10:57,836 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7866 states, 7865 states have (on average 1.6643356643356644) internal successors, (13090), 7865 states have internal predecessors, (13090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:57,842 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7866 states to 7866 states and 13090 transitions.
[2023-12-25 17:10:57,842 INFO  L78                 Accepts]: Start accepts. Automaton has 7866 states and 13090 transitions. Word has length 5091
[2023-12-25 17:10:57,844 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:10:57,844 INFO  L495      AbstractCegarLoop]: Abstraction has 7866 states and 13090 transitions.
[2023-12-25 17:10:57,845 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 673.7142857142857) internal successors, (4716), 7 states have internal predecessors, (4716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:10:57,845 INFO  L276                IsEmpty]: Start isEmpty. Operand 7866 states and 13090 transitions.
[2023-12-25 17:10:58,083 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5093
[2023-12-25 17:10:58,083 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:10:58,085 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:10:58,172 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0
[2023-12-25 17:10:58,285 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37
[2023-12-25 17:10:58,288 INFO  L420      AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:10:58,288 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:10:58,289 INFO  L85        PathProgramCache]: Analyzing trace with hash 657266170, now seen corresponding path program 1 times
[2023-12-25 17:10:58,289 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:10:58,289 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914179632]
[2023-12-25 17:10:58,289 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:10:58,289 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:10:58,679 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:10:58,679 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2123002629]
[2023-12-25 17:10:58,680 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:10:58,681 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:10:58,681 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:10:58,682 INFO  L229       MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:10:58,683 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process
[2023-12-25 17:11:05,344 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:11:05,559 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30718 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:11:05,828 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:11:06,025 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked.
[2023-12-25 17:11:06,026 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:11:06,026 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:11:06,026 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914179632]
[2023-12-25 17:11:06,026 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:11:06,026 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123002629]
[2023-12-25 17:11:06,026 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123002629] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:11:06,026 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:11:06,026 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:11:06,027 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545441941]
[2023-12-25 17:11:06,027 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:11:06,029 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:11:06,029 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:11:06,031 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:11:06,031 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:11:06,031 INFO  L87              Difference]: Start difference. First operand 7866 states and 13090 transitions. Second operand  has 7 states, 7 states have (on average 674.1428571428571) internal successors, (4719), 7 states have internal predecessors, (4719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:06,387 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:11:06,388 INFO  L93              Difference]: Finished difference Result 21857 states and 36370 transitions.
[2023-12-25 17:11:06,388 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:11:06,389 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 674.1428571428571) internal successors, (4719), 7 states have internal predecessors, (4719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5092
[2023-12-25 17:11:06,392 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:11:06,404 INFO  L225             Difference]: With dead ends: 21857
[2023-12-25 17:11:06,404 INFO  L226             Difference]: Without dead ends: 14780
[2023-12-25 17:11:06,411 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5101 GetRequests, 5089 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:11:06,411 INFO  L413           NwaCegarLoop]: 12882 mSDtfsCounter, 33848 mSDsluCounter, 50577 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33848 SdHoareTripleChecker+Valid, 63459 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:11:06,411 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33848 Valid, 63459 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:11:06,419 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14780 states.
[2023-12-25 17:11:06,476 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14780 to 7868.
[2023-12-25 17:11:06,482 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7868 states, 7867 states have (on average 1.6641667725943816) internal successors, (13092), 7867 states have internal predecessors, (13092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:06,487 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7868 states to 7868 states and 13092 transitions.
[2023-12-25 17:11:06,487 INFO  L78                 Accepts]: Start accepts. Automaton has 7868 states and 13092 transitions. Word has length 5092
[2023-12-25 17:11:06,489 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:11:06,489 INFO  L495      AbstractCegarLoop]: Abstraction has 7868 states and 13092 transitions.
[2023-12-25 17:11:06,490 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 674.1428571428571) internal successors, (4719), 7 states have internal predecessors, (4719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:06,490 INFO  L276                IsEmpty]: Start isEmpty. Operand 7868 states and 13092 transitions.
[2023-12-25 17:11:06,615 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5094
[2023-12-25 17:11:06,616 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:11:06,617 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:11:06,707 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0
[2023-12-25 17:11:06,817 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38
[2023-12-25 17:11:06,817 INFO  L420      AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:11:06,818 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:11:06,818 INFO  L85        PathProgramCache]: Analyzing trace with hash 250169718, now seen corresponding path program 1 times
[2023-12-25 17:11:06,818 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:11:06,818 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615805314]
[2023-12-25 17:11:06,819 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:11:06,819 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:11:07,341 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:11:07,341 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [452092848]
[2023-12-25 17:11:07,342 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:11:07,342 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:11:07,342 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:11:07,343 INFO  L229       MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:11:07,346 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process
[2023-12-25 17:11:14,521 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:11:14,695 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30722 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:11:14,748 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:11:14,936 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked.
[2023-12-25 17:11:14,936 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:11:14,936 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:11:14,937 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615805314]
[2023-12-25 17:11:14,937 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:11:14,937 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452092848]
[2023-12-25 17:11:14,937 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [452092848] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:11:14,937 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:11:14,937 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:11:14,937 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260034223]
[2023-12-25 17:11:14,937 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:11:14,939 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:11:14,939 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:11:14,941 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:11:14,941 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:11:14,942 INFO  L87              Difference]: Start difference. First operand 7868 states and 13092 transitions. Second operand  has 7 states, 7 states have (on average 674.5714285714286) internal successors, (4722), 7 states have internal predecessors, (4722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:15,332 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:11:15,332 INFO  L93              Difference]: Finished difference Result 21863 states and 36376 transitions.
[2023-12-25 17:11:15,332 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:11:15,333 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 674.5714285714286) internal successors, (4722), 7 states have internal predecessors, (4722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5093
[2023-12-25 17:11:15,336 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:11:15,346 INFO  L225             Difference]: With dead ends: 21863
[2023-12-25 17:11:15,346 INFO  L226             Difference]: Without dead ends: 14781
[2023-12-25 17:11:15,350 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5102 GetRequests, 5090 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:11:15,350 INFO  L413           NwaCegarLoop]: 12877 mSDtfsCounter, 33847 mSDsluCounter, 50562 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33847 SdHoareTripleChecker+Valid, 63439 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:11:15,350 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33847 Valid, 63439 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:11:15,357 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14781 states.
[2023-12-25 17:11:15,412 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14781 to 7870.
[2023-12-25 17:11:15,417 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7870 states, 7869 states have (on average 1.663997966704791) internal successors, (13094), 7869 states have internal predecessors, (13094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:15,423 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7870 states to 7870 states and 13094 transitions.
[2023-12-25 17:11:15,423 INFO  L78                 Accepts]: Start accepts. Automaton has 7870 states and 13094 transitions. Word has length 5093
[2023-12-25 17:11:15,425 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:11:15,425 INFO  L495      AbstractCegarLoop]: Abstraction has 7870 states and 13094 transitions.
[2023-12-25 17:11:15,426 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 674.5714285714286) internal successors, (4722), 7 states have internal predecessors, (4722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:15,426 INFO  L276                IsEmpty]: Start isEmpty. Operand 7870 states and 13094 transitions.
[2023-12-25 17:11:15,585 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5095
[2023-12-25 17:11:15,585 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:11:15,586 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:11:15,675 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0
[2023-12-25 17:11:15,786 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39
[2023-12-25 17:11:15,787 INFO  L420      AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:11:15,787 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:11:15,787 INFO  L85        PathProgramCache]: Analyzing trace with hash -1176994462, now seen corresponding path program 1 times
[2023-12-25 17:11:15,787 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:11:15,787 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067907408]
[2023-12-25 17:11:15,788 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:11:15,788 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:11:16,153 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:11:16,154 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [303246067]
[2023-12-25 17:11:16,155 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:11:16,155 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:11:16,155 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:11:16,156 INFO  L229       MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:11:16,158 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process
[2023-12-25 17:11:23,065 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:11:23,258 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30725 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:11:23,319 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:11:23,497 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked.
[2023-12-25 17:11:23,498 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:11:23,498 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:11:23,498 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067907408]
[2023-12-25 17:11:23,498 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:11:23,498 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303246067]
[2023-12-25 17:11:23,498 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [303246067] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:11:23,498 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:11:23,498 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:11:23,499 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387811639]
[2023-12-25 17:11:23,499 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:11:23,501 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:11:23,501 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:11:23,503 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:11:23,503 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:11:23,503 INFO  L87              Difference]: Start difference. First operand 7870 states and 13094 transitions. Second operand  has 7 states, 7 states have (on average 675.0) internal successors, (4725), 7 states have internal predecessors, (4725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:23,854 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:11:23,854 INFO  L93              Difference]: Finished difference Result 21869 states and 36382 transitions.
[2023-12-25 17:11:23,854 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:11:23,855 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 675.0) internal successors, (4725), 7 states have internal predecessors, (4725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5094
[2023-12-25 17:11:23,859 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:11:23,872 INFO  L225             Difference]: With dead ends: 21869
[2023-12-25 17:11:23,872 INFO  L226             Difference]: Without dead ends: 14782
[2023-12-25 17:11:23,880 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5103 GetRequests, 5091 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:11:23,881 INFO  L413           NwaCegarLoop]: 12872 mSDtfsCounter, 33846 mSDsluCounter, 50547 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33846 SdHoareTripleChecker+Valid, 63419 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:11:23,881 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33846 Valid, 63419 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:11:23,892 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14782 states.
[2023-12-25 17:11:24,044 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14782 to 7872.
[2023-12-25 17:11:24,050 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7872 states, 7871 states have (on average 1.6638292466014484) internal successors, (13096), 7871 states have internal predecessors, (13096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:24,058 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7872 states to 7872 states and 13096 transitions.
[2023-12-25 17:11:24,059 INFO  L78                 Accepts]: Start accepts. Automaton has 7872 states and 13096 transitions. Word has length 5094
[2023-12-25 17:11:24,061 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:11:24,061 INFO  L495      AbstractCegarLoop]: Abstraction has 7872 states and 13096 transitions.
[2023-12-25 17:11:24,062 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 675.0) internal successors, (4725), 7 states have internal predecessors, (4725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:24,062 INFO  L276                IsEmpty]: Start isEmpty. Operand 7872 states and 13096 transitions.
[2023-12-25 17:11:24,188 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5096
[2023-12-25 17:11:24,188 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:11:24,189 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:11:24,282 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0
[2023-12-25 17:11:24,392 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40
[2023-12-25 17:11:24,392 INFO  L420      AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:11:24,393 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:11:24,393 INFO  L85        PathProgramCache]: Analyzing trace with hash 275342992, now seen corresponding path program 1 times
[2023-12-25 17:11:24,393 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:11:24,393 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430794491]
[2023-12-25 17:11:24,394 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:11:24,394 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:11:24,813 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:11:24,814 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2023818420]
[2023-12-25 17:11:24,815 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:11:24,815 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:11:24,815 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:11:24,816 INFO  L229       MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:11:24,816 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process
[2023-12-25 17:11:31,636 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:11:31,831 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30728 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:11:31,890 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:11:32,083 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked.
[2023-12-25 17:11:32,083 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:11:32,083 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:11:32,083 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430794491]
[2023-12-25 17:11:32,083 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:11:32,083 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023818420]
[2023-12-25 17:11:32,084 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023818420] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:11:32,084 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:11:32,084 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:11:32,084 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109275126]
[2023-12-25 17:11:32,084 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:11:32,086 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:11:32,087 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:11:32,088 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:11:32,088 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:11:32,089 INFO  L87              Difference]: Start difference. First operand 7872 states and 13096 transitions. Second operand  has 7 states, 7 states have (on average 675.4285714285714) internal successors, (4728), 7 states have internal predecessors, (4728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:32,533 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:11:32,533 INFO  L93              Difference]: Finished difference Result 21875 states and 36388 transitions.
[2023-12-25 17:11:32,533 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:11:32,535 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 675.4285714285714) internal successors, (4728), 7 states have internal predecessors, (4728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5095
[2023-12-25 17:11:32,537 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:11:32,548 INFO  L225             Difference]: With dead ends: 21875
[2023-12-25 17:11:32,548 INFO  L226             Difference]: Without dead ends: 14783
[2023-12-25 17:11:32,552 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5104 GetRequests, 5092 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:11:32,552 INFO  L413           NwaCegarLoop]: 12867 mSDtfsCounter, 33845 mSDsluCounter, 50532 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33845 SdHoareTripleChecker+Valid, 63399 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:11:32,552 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33845 Valid, 63399 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:11:32,561 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14783 states.
[2023-12-25 17:11:32,621 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14783 to 7874.
[2023-12-25 17:11:32,628 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7874 states, 7873 states have (on average 1.6636606122189763) internal successors, (13098), 7873 states have internal predecessors, (13098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:32,635 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7874 states to 7874 states and 13098 transitions.
[2023-12-25 17:11:32,635 INFO  L78                 Accepts]: Start accepts. Automaton has 7874 states and 13098 transitions. Word has length 5095
[2023-12-25 17:11:32,637 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:11:32,637 INFO  L495      AbstractCegarLoop]: Abstraction has 7874 states and 13098 transitions.
[2023-12-25 17:11:32,638 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 675.4285714285714) internal successors, (4728), 7 states have internal predecessors, (4728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:32,638 INFO  L276                IsEmpty]: Start isEmpty. Operand 7874 states and 13098 transitions.
[2023-12-25 17:11:32,763 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5097
[2023-12-25 17:11:32,764 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:11:32,765 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:11:32,862 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0
[2023-12-25 17:11:32,965 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41
[2023-12-25 17:11:32,965 INFO  L420      AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:11:32,966 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:11:32,966 INFO  L85        PathProgramCache]: Analyzing trace with hash -565598904, now seen corresponding path program 1 times
[2023-12-25 17:11:32,966 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:11:32,966 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482069361]
[2023-12-25 17:11:32,967 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:11:32,967 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:11:33,359 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:11:33,359 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1835650462]
[2023-12-25 17:11:33,360 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:11:33,360 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:11:33,360 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:11:33,361 INFO  L229       MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:11:33,362 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process
[2023-12-25 17:11:40,403 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:11:40,592 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30731 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:11:40,648 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:11:40,836 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked.
[2023-12-25 17:11:40,836 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:11:40,836 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:11:40,836 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482069361]
[2023-12-25 17:11:40,836 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:11:40,836 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835650462]
[2023-12-25 17:11:40,836 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835650462] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:11:40,836 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:11:40,837 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:11:40,837 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362472739]
[2023-12-25 17:11:40,837 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:11:40,839 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:11:40,839 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:11:40,841 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:11:40,841 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:11:40,842 INFO  L87              Difference]: Start difference. First operand 7874 states and 13098 transitions. Second operand  has 7 states, 7 states have (on average 675.8571428571429) internal successors, (4731), 7 states have internal predecessors, (4731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:41,192 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:11:41,192 INFO  L93              Difference]: Finished difference Result 21881 states and 36394 transitions.
[2023-12-25 17:11:41,193 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:11:41,194 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 675.8571428571429) internal successors, (4731), 7 states have internal predecessors, (4731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5096
[2023-12-25 17:11:41,197 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:11:41,209 INFO  L225             Difference]: With dead ends: 21881
[2023-12-25 17:11:41,209 INFO  L226             Difference]: Without dead ends: 14784
[2023-12-25 17:11:41,216 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5105 GetRequests, 5093 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:11:41,216 INFO  L413           NwaCegarLoop]: 12862 mSDtfsCounter, 33844 mSDsluCounter, 50517 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33844 SdHoareTripleChecker+Valid, 63379 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:11:41,217 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33844 Valid, 63379 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:11:41,225 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14784 states.
[2023-12-25 17:11:41,287 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14784 to 7876.
[2023-12-25 17:11:41,292 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7876 states, 7875 states have (on average 1.6634920634920636) internal successors, (13100), 7875 states have internal predecessors, (13100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:41,298 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7876 states to 7876 states and 13100 transitions.
[2023-12-25 17:11:41,298 INFO  L78                 Accepts]: Start accepts. Automaton has 7876 states and 13100 transitions. Word has length 5096
[2023-12-25 17:11:41,300 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:11:41,300 INFO  L495      AbstractCegarLoop]: Abstraction has 7876 states and 13100 transitions.
[2023-12-25 17:11:41,301 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 675.8571428571429) internal successors, (4731), 7 states have internal predecessors, (4731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:41,301 INFO  L276                IsEmpty]: Start isEmpty. Operand 7876 states and 13100 transitions.
[2023-12-25 17:11:41,520 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5098
[2023-12-25 17:11:41,520 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:11:41,521 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:11:41,615 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0
[2023-12-25 17:11:41,721 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42
[2023-12-25 17:11:41,722 INFO  L420      AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:11:41,722 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:11:41,723 INFO  L85        PathProgramCache]: Analyzing trace with hash -245096404, now seen corresponding path program 1 times
[2023-12-25 17:11:41,723 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:11:41,723 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539616766]
[2023-12-25 17:11:41,723 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:11:41,723 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:11:42,094 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:11:42,095 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1604268270]
[2023-12-25 17:11:42,096 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:11:42,096 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:11:42,096 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:11:42,097 INFO  L229       MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:11:42,097 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process
[2023-12-25 17:11:48,966 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:11:49,165 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30735 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:11:49,221 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:11:49,397 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked.
[2023-12-25 17:11:49,397 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:11:49,397 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:11:49,397 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539616766]
[2023-12-25 17:11:49,397 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:11:49,397 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604268270]
[2023-12-25 17:11:49,397 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604268270] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:11:49,397 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:11:49,398 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:11:49,398 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490322747]
[2023-12-25 17:11:49,398 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:11:49,400 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:11:49,400 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:11:49,402 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:11:49,402 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:11:49,402 INFO  L87              Difference]: Start difference. First operand 7876 states and 13100 transitions. Second operand  has 7 states, 7 states have (on average 676.2857142857143) internal successors, (4734), 7 states have internal predecessors, (4734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:49,878 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:11:49,878 INFO  L93              Difference]: Finished difference Result 21887 states and 36400 transitions.
[2023-12-25 17:11:49,878 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:11:49,880 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 676.2857142857143) internal successors, (4734), 7 states have internal predecessors, (4734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5097
[2023-12-25 17:11:49,883 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:11:49,896 INFO  L225             Difference]: With dead ends: 21887
[2023-12-25 17:11:49,896 INFO  L226             Difference]: Without dead ends: 14785
[2023-12-25 17:11:49,904 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5106 GetRequests, 5094 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:11:49,904 INFO  L413           NwaCegarLoop]: 12857 mSDtfsCounter, 33843 mSDsluCounter, 50502 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33843 SdHoareTripleChecker+Valid, 63359 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-25 17:11:49,905 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33843 Valid, 63359 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-25 17:11:49,913 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14785 states.
[2023-12-25 17:11:49,979 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14785 to 7878.
[2023-12-25 17:11:49,985 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7878 states, 7877 states have (on average 1.6633236003554652) internal successors, (13102), 7877 states have internal predecessors, (13102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:49,992 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7878 states to 7878 states and 13102 transitions.
[2023-12-25 17:11:49,992 INFO  L78                 Accepts]: Start accepts. Automaton has 7878 states and 13102 transitions. Word has length 5097
[2023-12-25 17:11:49,994 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:11:49,994 INFO  L495      AbstractCegarLoop]: Abstraction has 7878 states and 13102 transitions.
[2023-12-25 17:11:49,995 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 676.2857142857143) internal successors, (4734), 7 states have internal predecessors, (4734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:49,995 INFO  L276                IsEmpty]: Start isEmpty. Operand 7878 states and 13102 transitions.
[2023-12-25 17:11:50,121 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5099
[2023-12-25 17:11:50,122 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:11:50,123 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:11:50,231 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0
[2023-12-25 17:11:50,323 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:11:50,324 INFO  L420      AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:11:50,324 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:11:50,324 INFO  L85        PathProgramCache]: Analyzing trace with hash -658416208, now seen corresponding path program 1 times
[2023-12-25 17:11:50,324 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:11:50,324 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539414671]
[2023-12-25 17:11:50,325 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:11:50,325 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:11:50,729 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:11:50,729 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [308227290]
[2023-12-25 17:11:50,730 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:11:50,730 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:11:50,730 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:11:50,731 INFO  L229       MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:11:50,732 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process
[2023-12-25 17:11:57,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:11:57,905 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30738 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:11:57,969 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:11:58,322 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked.
[2023-12-25 17:11:58,323 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:11:58,323 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:11:58,323 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539414671]
[2023-12-25 17:11:58,323 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:11:58,323 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308227290]
[2023-12-25 17:11:58,323 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [308227290] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:11:58,323 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:11:58,324 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:11:58,324 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685159805]
[2023-12-25 17:11:58,324 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:11:58,326 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:11:58,326 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:11:58,328 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:11:58,328 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:11:58,328 INFO  L87              Difference]: Start difference. First operand 7878 states and 13102 transitions. Second operand  has 7 states, 7 states have (on average 676.7142857142857) internal successors, (4737), 7 states have internal predecessors, (4737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:58,673 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:11:58,673 INFO  L93              Difference]: Finished difference Result 21893 states and 36406 transitions.
[2023-12-25 17:11:58,673 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:11:58,674 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 676.7142857142857) internal successors, (4737), 7 states have internal predecessors, (4737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5098
[2023-12-25 17:11:58,678 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:11:58,691 INFO  L225             Difference]: With dead ends: 21893
[2023-12-25 17:11:58,691 INFO  L226             Difference]: Without dead ends: 14786
[2023-12-25 17:11:58,700 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5107 GetRequests, 5095 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:11:58,700 INFO  L413           NwaCegarLoop]: 12852 mSDtfsCounter, 33842 mSDsluCounter, 50487 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33842 SdHoareTripleChecker+Valid, 63339 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:11:58,700 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33842 Valid, 63339 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:11:58,710 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14786 states.
[2023-12-25 17:11:58,776 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14786 to 7880.
[2023-12-25 17:11:58,782 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7880 states, 7879 states have (on average 1.663155222744003) internal successors, (13104), 7879 states have internal predecessors, (13104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:58,789 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7880 states to 7880 states and 13104 transitions.
[2023-12-25 17:11:58,789 INFO  L78                 Accepts]: Start accepts. Automaton has 7880 states and 13104 transitions. Word has length 5098
[2023-12-25 17:11:58,791 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:11:58,791 INFO  L495      AbstractCegarLoop]: Abstraction has 7880 states and 13104 transitions.
[2023-12-25 17:11:58,792 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 676.7142857142857) internal successors, (4737), 7 states have internal predecessors, (4737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:11:58,792 INFO  L276                IsEmpty]: Start isEmpty. Operand 7880 states and 13104 transitions.
[2023-12-25 17:11:58,918 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5100
[2023-12-25 17:11:58,918 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:11:58,919 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:11:59,017 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0
[2023-12-25 17:11:59,120 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:11:59,120 INFO  L420      AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:11:59,120 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:11:59,121 INFO  L85        PathProgramCache]: Analyzing trace with hash -1090463418, now seen corresponding path program 1 times
[2023-12-25 17:11:59,121 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:11:59,121 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272028353]
[2023-12-25 17:11:59,121 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:11:59,121 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:11:59,585 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:11:59,586 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [997707257]
[2023-12-25 17:11:59,587 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:11:59,587 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:11:59,587 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:11:59,588 INFO  L229       MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:11:59,590 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process
[2023-12-25 17:12:06,613 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:12:06,815 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30741 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:12:06,876 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:12:07,070 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked.
[2023-12-25 17:12:07,070 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:12:07,071 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:12:07,071 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272028353]
[2023-12-25 17:12:07,071 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:12:07,071 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997707257]
[2023-12-25 17:12:07,071 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [997707257] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:12:07,071 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:12:07,071 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:12:07,071 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945107771]
[2023-12-25 17:12:07,071 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:12:07,074 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:12:07,074 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:12:07,076 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:12:07,076 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:12:07,076 INFO  L87              Difference]: Start difference. First operand 7880 states and 13104 transitions. Second operand  has 7 states, 7 states have (on average 677.1428571428571) internal successors, (4740), 7 states have internal predecessors, (4740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:07,421 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:12:07,421 INFO  L93              Difference]: Finished difference Result 21899 states and 36412 transitions.
[2023-12-25 17:12:07,422 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:12:07,423 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 677.1428571428571) internal successors, (4740), 7 states have internal predecessors, (4740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5099
[2023-12-25 17:12:07,426 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:12:07,437 INFO  L225             Difference]: With dead ends: 21899
[2023-12-25 17:12:07,438 INFO  L226             Difference]: Without dead ends: 14787
[2023-12-25 17:12:07,445 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5108 GetRequests, 5096 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:12:07,446 INFO  L413           NwaCegarLoop]: 12847 mSDtfsCounter, 33841 mSDsluCounter, 50472 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33841 SdHoareTripleChecker+Valid, 63319 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:12:07,446 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33841 Valid, 63319 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:12:07,455 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14787 states.
[2023-12-25 17:12:07,519 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14787 to 7882.
[2023-12-25 17:12:07,524 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7882 states, 7881 states have (on average 1.6629869305925644) internal successors, (13106), 7881 states have internal predecessors, (13106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:07,530 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7882 states to 7882 states and 13106 transitions.
[2023-12-25 17:12:07,530 INFO  L78                 Accepts]: Start accepts. Automaton has 7882 states and 13106 transitions. Word has length 5099
[2023-12-25 17:12:07,532 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:12:07,532 INFO  L495      AbstractCegarLoop]: Abstraction has 7882 states and 13106 transitions.
[2023-12-25 17:12:07,533 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 677.1428571428571) internal successors, (4740), 7 states have internal predecessors, (4740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:07,533 INFO  L276                IsEmpty]: Start isEmpty. Operand 7882 states and 13106 transitions.
[2023-12-25 17:12:07,659 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5101
[2023-12-25 17:12:07,659 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:12:07,660 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:12:07,751 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0
[2023-12-25 17:12:07,861 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45
[2023-12-25 17:12:07,862 INFO  L420      AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:12:07,862 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:12:07,862 INFO  L85        PathProgramCache]: Analyzing trace with hash -2105226858, now seen corresponding path program 1 times
[2023-12-25 17:12:07,862 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:12:07,862 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516358264]
[2023-12-25 17:12:07,863 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:12:07,863 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:12:08,323 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:12:08,323 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [769167182]
[2023-12-25 17:12:08,324 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:12:08,324 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:12:08,325 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:12:08,325 INFO  L229       MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:12:08,329 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process
[2023-12-25 17:12:15,154 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:12:15,348 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30744 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:12:15,412 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:12:15,771 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked.
[2023-12-25 17:12:15,771 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:12:15,771 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:12:15,771 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516358264]
[2023-12-25 17:12:15,772 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:12:15,772 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769167182]
[2023-12-25 17:12:15,772 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [769167182] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:12:15,772 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:12:15,772 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:12:15,773 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542958437]
[2023-12-25 17:12:15,773 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:12:15,775 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:12:15,775 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:12:15,777 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:12:15,777 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:12:15,778 INFO  L87              Difference]: Start difference. First operand 7882 states and 13106 transitions. Second operand  has 7 states, 7 states have (on average 677.5714285714286) internal successors, (4743), 7 states have internal predecessors, (4743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:16,177 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:12:16,177 INFO  L93              Difference]: Finished difference Result 21905 states and 36418 transitions.
[2023-12-25 17:12:16,177 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:12:16,178 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 677.5714285714286) internal successors, (4743), 7 states have internal predecessors, (4743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5100
[2023-12-25 17:12:16,182 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:12:16,195 INFO  L225             Difference]: With dead ends: 21905
[2023-12-25 17:12:16,195 INFO  L226             Difference]: Without dead ends: 14788
[2023-12-25 17:12:16,203 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5109 GetRequests, 5097 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:12:16,203 INFO  L413           NwaCegarLoop]: 12842 mSDtfsCounter, 33840 mSDsluCounter, 50457 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33840 SdHoareTripleChecker+Valid, 63299 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:12:16,204 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33840 Valid, 63299 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:12:16,213 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14788 states.
[2023-12-25 17:12:16,276 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14788 to 7884.
[2023-12-25 17:12:16,282 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7884 states, 7883 states have (on average 1.662818723836103) internal successors, (13108), 7883 states have internal predecessors, (13108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:16,288 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7884 states to 7884 states and 13108 transitions.
[2023-12-25 17:12:16,289 INFO  L78                 Accepts]: Start accepts. Automaton has 7884 states and 13108 transitions. Word has length 5100
[2023-12-25 17:12:16,291 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:12:16,291 INFO  L495      AbstractCegarLoop]: Abstraction has 7884 states and 13108 transitions.
[2023-12-25 17:12:16,292 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 677.5714285714286) internal successors, (4743), 7 states have internal predecessors, (4743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:16,292 INFO  L276                IsEmpty]: Start isEmpty. Operand 7884 states and 13108 transitions.
[2023-12-25 17:12:16,416 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5102
[2023-12-25 17:12:16,416 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:12:16,417 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:12:16,519 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0
[2023-12-25 17:12:16,618 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46
[2023-12-25 17:12:16,618 INFO  L420      AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:12:16,618 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:12:16,619 INFO  L85        PathProgramCache]: Analyzing trace with hash 2097593314, now seen corresponding path program 1 times
[2023-12-25 17:12:16,619 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:12:16,619 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879989484]
[2023-12-25 17:12:16,620 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:12:16,620 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:12:17,066 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:12:17,066 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [290866164]
[2023-12-25 17:12:17,067 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:12:17,068 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:12:17,068 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:12:17,069 INFO  L229       MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:12:17,071 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process
[2023-12-25 17:12:23,777 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:12:23,983 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30748 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:12:24,046 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:12:24,226 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked.
[2023-12-25 17:12:24,226 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:12:24,226 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:12:24,226 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879989484]
[2023-12-25 17:12:24,226 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:12:24,226 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290866164]
[2023-12-25 17:12:24,226 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [290866164] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:12:24,226 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:12:24,227 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:12:24,227 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515046684]
[2023-12-25 17:12:24,227 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:12:24,229 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:12:24,229 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:12:24,231 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:12:24,231 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:12:24,232 INFO  L87              Difference]: Start difference. First operand 7884 states and 13108 transitions. Second operand  has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:24,659 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:12:24,659 INFO  L93              Difference]: Finished difference Result 21911 states and 36424 transitions.
[2023-12-25 17:12:24,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:12:24,660 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5101
[2023-12-25 17:12:24,663 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:12:24,675 INFO  L225             Difference]: With dead ends: 21911
[2023-12-25 17:12:24,675 INFO  L226             Difference]: Without dead ends: 14789
[2023-12-25 17:12:24,682 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5110 GetRequests, 5098 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:12:24,682 INFO  L413           NwaCegarLoop]: 12837 mSDtfsCounter, 33839 mSDsluCounter, 50442 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33839 SdHoareTripleChecker+Valid, 63279 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:12:24,682 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33839 Valid, 63279 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:12:24,692 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14789 states.
[2023-12-25 17:12:24,758 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14789 to 7886.
[2023-12-25 17:12:24,765 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7886 states, 7885 states have (on average 1.6626506024096386) internal successors, (13110), 7885 states have internal predecessors, (13110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:24,772 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7886 states to 7886 states and 13110 transitions.
[2023-12-25 17:12:24,772 INFO  L78                 Accepts]: Start accepts. Automaton has 7886 states and 13110 transitions. Word has length 5101
[2023-12-25 17:12:24,774 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:12:24,774 INFO  L495      AbstractCegarLoop]: Abstraction has 7886 states and 13110 transitions.
[2023-12-25 17:12:24,774 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 678.0) internal successors, (4746), 7 states have internal predecessors, (4746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:24,775 INFO  L276                IsEmpty]: Start isEmpty. Operand 7886 states and 13110 transitions.
[2023-12-25 17:12:24,901 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5103
[2023-12-25 17:12:24,901 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:12:24,902 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:12:24,999 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0
[2023-12-25 17:12:25,102 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47
[2023-12-25 17:12:25,103 INFO  L420      AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:12:25,103 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:12:25,104 INFO  L85        PathProgramCache]: Analyzing trace with hash -1476865282, now seen corresponding path program 1 times
[2023-12-25 17:12:25,104 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:12:25,104 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788497572]
[2023-12-25 17:12:25,104 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:12:25,104 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:12:25,503 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:12:25,503 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [467871015]
[2023-12-25 17:12:25,504 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:12:25,504 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:12:25,504 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:12:25,505 INFO  L229       MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:12:25,506 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process
[2023-12-25 17:12:32,410 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:12:32,600 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30751 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:12:32,661 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:12:32,840 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked.
[2023-12-25 17:12:32,840 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:12:32,841 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:12:32,841 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788497572]
[2023-12-25 17:12:32,841 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:12:32,841 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467871015]
[2023-12-25 17:12:32,841 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [467871015] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:12:32,841 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:12:32,841 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:12:32,841 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323498050]
[2023-12-25 17:12:32,841 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:12:32,844 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:12:32,844 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:12:32,846 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:12:32,846 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:12:32,846 INFO  L87              Difference]: Start difference. First operand 7886 states and 13110 transitions. Second operand  has 7 states, 7 states have (on average 678.4285714285714) internal successors, (4749), 7 states have internal predecessors, (4749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:33,198 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:12:33,199 INFO  L93              Difference]: Finished difference Result 21917 states and 36430 transitions.
[2023-12-25 17:12:33,199 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:12:33,200 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 678.4285714285714) internal successors, (4749), 7 states have internal predecessors, (4749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5102
[2023-12-25 17:12:33,203 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:12:33,216 INFO  L225             Difference]: With dead ends: 21917
[2023-12-25 17:12:33,216 INFO  L226             Difference]: Without dead ends: 14790
[2023-12-25 17:12:33,224 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5111 GetRequests, 5099 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:12:33,224 INFO  L413           NwaCegarLoop]: 12832 mSDtfsCounter, 33838 mSDsluCounter, 50427 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33838 SdHoareTripleChecker+Valid, 63259 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:12:33,224 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33838 Valid, 63259 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:12:33,234 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14790 states.
[2023-12-25 17:12:33,303 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14790 to 7888.
[2023-12-25 17:12:33,309 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7888 states, 7887 states have (on average 1.6624825662482565) internal successors, (13112), 7887 states have internal predecessors, (13112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:33,317 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7888 states to 7888 states and 13112 transitions.
[2023-12-25 17:12:33,317 INFO  L78                 Accepts]: Start accepts. Automaton has 7888 states and 13112 transitions. Word has length 5102
[2023-12-25 17:12:33,319 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:12:33,319 INFO  L495      AbstractCegarLoop]: Abstraction has 7888 states and 13112 transitions.
[2023-12-25 17:12:33,320 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 678.4285714285714) internal successors, (4749), 7 states have internal predecessors, (4749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:33,320 INFO  L276                IsEmpty]: Start isEmpty. Operand 7888 states and 13112 transitions.
[2023-12-25 17:12:33,553 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5104
[2023-12-25 17:12:33,553 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:12:33,554 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:12:33,648 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0
[2023-12-25 17:12:33,754 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:12:33,757 INFO  L420      AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:12:33,757 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:12:33,758 INFO  L85        PathProgramCache]: Analyzing trace with hash 147099900, now seen corresponding path program 1 times
[2023-12-25 17:12:33,758 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:12:33,758 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726321177]
[2023-12-25 17:12:33,758 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:12:33,758 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:12:34,140 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:12:34,140 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1620984320]
[2023-12-25 17:12:34,141 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:12:34,141 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:12:34,141 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:12:34,142 INFO  L229       MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:12:34,143 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process
[2023-12-25 17:12:40,944 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:12:41,166 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30754 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:12:41,235 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:12:41,591 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked.
[2023-12-25 17:12:41,591 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:12:41,591 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:12:41,592 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726321177]
[2023-12-25 17:12:41,592 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:12:41,592 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620984320]
[2023-12-25 17:12:41,592 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620984320] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:12:41,592 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:12:41,592 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:12:41,592 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421473937]
[2023-12-25 17:12:41,592 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:12:41,595 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:12:41,595 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:12:41,596 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:12:41,596 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:12:41,597 INFO  L87              Difference]: Start difference. First operand 7888 states and 13112 transitions. Second operand  has 7 states, 7 states have (on average 678.8571428571429) internal successors, (4752), 7 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:41,944 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:12:41,945 INFO  L93              Difference]: Finished difference Result 21923 states and 36436 transitions.
[2023-12-25 17:12:41,945 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:12:41,946 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 678.8571428571429) internal successors, (4752), 7 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5103
[2023-12-25 17:12:41,949 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:12:41,962 INFO  L225             Difference]: With dead ends: 21923
[2023-12-25 17:12:41,962 INFO  L226             Difference]: Without dead ends: 14791
[2023-12-25 17:12:41,970 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5112 GetRequests, 5100 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:12:41,970 INFO  L413           NwaCegarLoop]: 12827 mSDtfsCounter, 33837 mSDsluCounter, 50412 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33837 SdHoareTripleChecker+Valid, 63239 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:12:41,970 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33837 Valid, 63239 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:12:41,979 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14791 states.
[2023-12-25 17:12:42,043 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14791 to 7890.
[2023-12-25 17:12:42,049 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7890 states, 7889 states have (on average 1.6623146152871087) internal successors, (13114), 7889 states have internal predecessors, (13114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:42,056 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7890 states to 7890 states and 13114 transitions.
[2023-12-25 17:12:42,056 INFO  L78                 Accepts]: Start accepts. Automaton has 7890 states and 13114 transitions. Word has length 5103
[2023-12-25 17:12:42,058 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:12:42,058 INFO  L495      AbstractCegarLoop]: Abstraction has 7890 states and 13114 transitions.
[2023-12-25 17:12:42,059 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 678.8571428571429) internal successors, (4752), 7 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:42,059 INFO  L276                IsEmpty]: Start isEmpty. Operand 7890 states and 13114 transitions.
[2023-12-25 17:12:42,183 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5105
[2023-12-25 17:12:42,183 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:12:42,184 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:12:42,275 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0
[2023-12-25 17:12:42,385 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49
[2023-12-25 17:12:42,385 INFO  L420      AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:12:42,385 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:12:42,386 INFO  L85        PathProgramCache]: Analyzing trace with hash 1468662500, now seen corresponding path program 1 times
[2023-12-25 17:12:42,386 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:12:42,386 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280323171]
[2023-12-25 17:12:42,386 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:12:42,386 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:12:42,743 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:12:42,743 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [622165991]
[2023-12-25 17:12:42,744 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:12:42,744 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:12:42,744 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:12:42,745 INFO  L229       MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:12:42,746 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process
[2023-12-25 17:12:49,517 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:12:49,711 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30757 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:12:49,771 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:12:49,954 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked.
[2023-12-25 17:12:49,954 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:12:49,954 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:12:49,954 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280323171]
[2023-12-25 17:12:49,954 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:12:49,954 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622165991]
[2023-12-25 17:12:49,954 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [622165991] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:12:49,954 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:12:49,955 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:12:49,955 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607855638]
[2023-12-25 17:12:49,955 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:12:49,957 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:12:49,957 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:12:49,959 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:12:49,959 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:12:49,960 INFO  L87              Difference]: Start difference. First operand 7890 states and 13114 transitions. Second operand  has 7 states, 7 states have (on average 679.2857142857143) internal successors, (4755), 7 states have internal predecessors, (4755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:50,330 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:12:50,331 INFO  L93              Difference]: Finished difference Result 21929 states and 36442 transitions.
[2023-12-25 17:12:50,331 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:12:50,332 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 679.2857142857143) internal successors, (4755), 7 states have internal predecessors, (4755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5104
[2023-12-25 17:12:50,460 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:12:50,471 INFO  L225             Difference]: With dead ends: 21929
[2023-12-25 17:12:50,471 INFO  L226             Difference]: Without dead ends: 14792
[2023-12-25 17:12:50,475 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5113 GetRequests, 5101 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:12:50,476 INFO  L413           NwaCegarLoop]: 12822 mSDtfsCounter, 33836 mSDsluCounter, 50397 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33836 SdHoareTripleChecker+Valid, 63219 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:12:50,477 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33836 Valid, 63219 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:12:50,486 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14792 states.
[2023-12-25 17:12:50,545 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14792 to 7892.
[2023-12-25 17:12:50,552 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7892 states, 7891 states have (on average 1.6621467494614117) internal successors, (13116), 7891 states have internal predecessors, (13116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:50,558 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7892 states to 7892 states and 13116 transitions.
[2023-12-25 17:12:50,559 INFO  L78                 Accepts]: Start accepts. Automaton has 7892 states and 13116 transitions. Word has length 5104
[2023-12-25 17:12:50,561 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:12:50,561 INFO  L495      AbstractCegarLoop]: Abstraction has 7892 states and 13116 transitions.
[2023-12-25 17:12:50,561 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 679.2857142857143) internal successors, (4755), 7 states have internal predecessors, (4755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:50,561 INFO  L276                IsEmpty]: Start isEmpty. Operand 7892 states and 13116 transitions.
[2023-12-25 17:12:50,686 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5106
[2023-12-25 17:12:50,687 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:12:50,688 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:12:50,781 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0
[2023-12-25 17:12:50,892 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:12:50,892 INFO  L420      AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:12:50,893 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:12:50,893 INFO  L85        PathProgramCache]: Analyzing trace with hash 30317720, now seen corresponding path program 1 times
[2023-12-25 17:12:50,893 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:12:50,894 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33475425]
[2023-12-25 17:12:50,894 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:12:50,894 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:12:51,283 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:12:51,284 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [836428598]
[2023-12-25 17:12:51,285 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:12:51,285 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:12:51,285 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:12:51,286 INFO  L229       MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:12:51,307 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process
[2023-12-25 17:12:58,181 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:12:58,378 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30761 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:12:58,439 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:12:58,623 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked.
[2023-12-25 17:12:58,623 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:12:58,623 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:12:58,623 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33475425]
[2023-12-25 17:12:58,623 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:12:58,623 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836428598]
[2023-12-25 17:12:58,623 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [836428598] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:12:58,623 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:12:58,624 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:12:58,624 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550921032]
[2023-12-25 17:12:58,624 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:12:58,626 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:12:58,626 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:12:58,628 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:12:58,628 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:12:58,629 INFO  L87              Difference]: Start difference. First operand 7892 states and 13116 transitions. Second operand  has 7 states, 7 states have (on average 679.7142857142857) internal successors, (4758), 7 states have internal predecessors, (4758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:58,970 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:12:58,971 INFO  L93              Difference]: Finished difference Result 21935 states and 36448 transitions.
[2023-12-25 17:12:58,971 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:12:58,972 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 679.7142857142857) internal successors, (4758), 7 states have internal predecessors, (4758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5105
[2023-12-25 17:12:58,975 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:12:58,988 INFO  L225             Difference]: With dead ends: 21935
[2023-12-25 17:12:58,988 INFO  L226             Difference]: Without dead ends: 14793
[2023-12-25 17:12:58,996 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5114 GetRequests, 5102 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:12:58,996 INFO  L413           NwaCegarLoop]: 12817 mSDtfsCounter, 33835 mSDsluCounter, 50382 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33835 SdHoareTripleChecker+Valid, 63199 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:12:58,996 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33835 Valid, 63199 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:12:59,005 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14793 states.
[2023-12-25 17:12:59,071 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14793 to 7894.
[2023-12-25 17:12:59,077 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7894 states, 7893 states have (on average 1.6619789687064488) internal successors, (13118), 7893 states have internal predecessors, (13118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:59,084 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7894 states to 7894 states and 13118 transitions.
[2023-12-25 17:12:59,084 INFO  L78                 Accepts]: Start accepts. Automaton has 7894 states and 13118 transitions. Word has length 5105
[2023-12-25 17:12:59,086 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:12:59,086 INFO  L495      AbstractCegarLoop]: Abstraction has 7894 states and 13118 transitions.
[2023-12-25 17:12:59,087 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 679.7142857142857) internal successors, (4758), 7 states have internal predecessors, (4758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:12:59,087 INFO  L276                IsEmpty]: Start isEmpty. Operand 7894 states and 13118 transitions.
[2023-12-25 17:12:59,304 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5107
[2023-12-25 17:12:59,304 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:12:59,305 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:12:59,397 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0
[2023-12-25 17:12:59,506 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51
[2023-12-25 17:12:59,506 INFO  L420      AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:12:59,506 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:12:59,507 INFO  L85        PathProgramCache]: Analyzing trace with hash 912940364, now seen corresponding path program 1 times
[2023-12-25 17:12:59,507 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:12:59,507 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12813210]
[2023-12-25 17:12:59,507 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:12:59,508 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:12:59,899 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:12:59,899 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1581495605]
[2023-12-25 17:12:59,900 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:12:59,900 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:12:59,900 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:12:59,901 INFO  L229       MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:12:59,913 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process
[2023-12-25 17:13:06,632 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:13:06,841 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30764 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:13:06,904 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:13:07,268 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked.
[2023-12-25 17:13:07,268 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:13:07,268 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:13:07,268 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12813210]
[2023-12-25 17:13:07,268 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:13:07,268 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581495605]
[2023-12-25 17:13:07,268 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581495605] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:13:07,268 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:13:07,269 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:13:07,269 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252854606]
[2023-12-25 17:13:07,269 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:13:07,271 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:13:07,271 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:13:07,273 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:13:07,273 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:13:07,274 INFO  L87              Difference]: Start difference. First operand 7894 states and 13118 transitions. Second operand  has 7 states, 7 states have (on average 680.1428571428571) internal successors, (4761), 7 states have internal predecessors, (4761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:07,618 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:13:07,618 INFO  L93              Difference]: Finished difference Result 21941 states and 36454 transitions.
[2023-12-25 17:13:07,618 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:13:07,620 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 680.1428571428571) internal successors, (4761), 7 states have internal predecessors, (4761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5106
[2023-12-25 17:13:07,623 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:13:07,635 INFO  L225             Difference]: With dead ends: 21941
[2023-12-25 17:13:07,636 INFO  L226             Difference]: Without dead ends: 14794
[2023-12-25 17:13:07,644 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5115 GetRequests, 5103 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:13:07,644 INFO  L413           NwaCegarLoop]: 12812 mSDtfsCounter, 33834 mSDsluCounter, 50367 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33834 SdHoareTripleChecker+Valid, 63179 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:13:07,644 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33834 Valid, 63179 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:13:07,653 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14794 states.
[2023-12-25 17:13:07,717 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14794 to 7896.
[2023-12-25 17:13:07,723 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7896 states, 7895 states have (on average 1.661811272957568) internal successors, (13120), 7895 states have internal predecessors, (13120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:07,730 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7896 states to 7896 states and 13120 transitions.
[2023-12-25 17:13:07,730 INFO  L78                 Accepts]: Start accepts. Automaton has 7896 states and 13120 transitions. Word has length 5106
[2023-12-25 17:13:07,732 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:13:07,732 INFO  L495      AbstractCegarLoop]: Abstraction has 7896 states and 13120 transitions.
[2023-12-25 17:13:07,733 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 680.1428571428571) internal successors, (4761), 7 states have internal predecessors, (4761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:07,733 INFO  L276                IsEmpty]: Start isEmpty. Operand 7896 states and 13120 transitions.
[2023-12-25 17:13:07,858 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5108
[2023-12-25 17:13:07,858 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:13:07,860 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:13:07,956 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0
[2023-12-25 17:13:08,060 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52
[2023-12-25 17:13:08,060 INFO  L420      AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:13:08,061 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:13:08,061 INFO  L85        PathProgramCache]: Analyzing trace with hash 800198066, now seen corresponding path program 1 times
[2023-12-25 17:13:08,061 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:13:08,061 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907484899]
[2023-12-25 17:13:08,062 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:13:08,062 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:13:08,440 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:13:08,440 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1713460648]
[2023-12-25 17:13:08,441 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:13:08,441 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:13:08,441 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:13:08,442 INFO  L229       MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:13:08,443 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process
[2023-12-25 17:13:15,257 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:13:15,458 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30767 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:13:15,520 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:13:15,701 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked.
[2023-12-25 17:13:15,701 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:13:15,701 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:13:15,701 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907484899]
[2023-12-25 17:13:15,701 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:13:15,701 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713460648]
[2023-12-25 17:13:15,701 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713460648] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:13:15,701 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:13:15,702 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:13:15,702 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715549248]
[2023-12-25 17:13:15,702 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:13:15,704 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:13:15,704 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:13:15,706 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:13:15,706 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:13:15,706 INFO  L87              Difference]: Start difference. First operand 7896 states and 13120 transitions. Second operand  has 7 states, 7 states have (on average 680.5714285714286) internal successors, (4764), 7 states have internal predecessors, (4764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:16,152 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:13:16,152 INFO  L93              Difference]: Finished difference Result 21947 states and 36460 transitions.
[2023-12-25 17:13:16,152 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:13:16,153 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 680.5714285714286) internal successors, (4764), 7 states have internal predecessors, (4764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5107
[2023-12-25 17:13:16,156 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:13:16,165 INFO  L225             Difference]: With dead ends: 21947
[2023-12-25 17:13:16,165 INFO  L226             Difference]: Without dead ends: 14795
[2023-12-25 17:13:16,168 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5116 GetRequests, 5104 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:13:16,169 INFO  L413           NwaCegarLoop]: 12807 mSDtfsCounter, 33833 mSDsluCounter, 50352 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33833 SdHoareTripleChecker+Valid, 63159 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:13:16,169 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33833 Valid, 63159 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:13:16,175 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14795 states.
[2023-12-25 17:13:16,228 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14795 to 7898.
[2023-12-25 17:13:16,233 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7898 states, 7897 states have (on average 1.6616436621501836) internal successors, (13122), 7897 states have internal predecessors, (13122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:16,239 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7898 states to 7898 states and 13122 transitions.
[2023-12-25 17:13:16,239 INFO  L78                 Accepts]: Start accepts. Automaton has 7898 states and 13122 transitions. Word has length 5107
[2023-12-25 17:13:16,241 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:13:16,241 INFO  L495      AbstractCegarLoop]: Abstraction has 7898 states and 13122 transitions.
[2023-12-25 17:13:16,241 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 680.5714285714286) internal successors, (4764), 7 states have internal predecessors, (4764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:16,241 INFO  L276                IsEmpty]: Start isEmpty. Operand 7898 states and 13122 transitions.
[2023-12-25 17:13:16,366 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5109
[2023-12-25 17:13:16,366 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:13:16,367 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:13:16,465 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0
[2023-12-25 17:13:16,567 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:13:16,568 INFO  L420      AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:13:16,568 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:13:16,568 INFO  L85        PathProgramCache]: Analyzing trace with hash 1380241714, now seen corresponding path program 1 times
[2023-12-25 17:13:16,568 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:13:16,569 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313089894]
[2023-12-25 17:13:16,569 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:13:16,569 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:13:16,929 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:13:16,929 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2112759103]
[2023-12-25 17:13:16,930 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:13:16,930 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:13:16,930 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:13:16,931 INFO  L229       MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:13:16,932 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process
[2023-12-25 17:13:23,662 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:13:23,843 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30770 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:13:23,897 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:13:24,073 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked.
[2023-12-25 17:13:24,073 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:13:24,073 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:13:24,073 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313089894]
[2023-12-25 17:13:24,073 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:13:24,073 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112759103]
[2023-12-25 17:13:24,073 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112759103] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:13:24,074 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:13:24,074 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:13:24,074 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235293261]
[2023-12-25 17:13:24,074 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:13:24,076 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:13:24,076 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:13:24,078 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:13:24,078 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:13:24,079 INFO  L87              Difference]: Start difference. First operand 7898 states and 13122 transitions. Second operand  has 7 states, 7 states have (on average 681.0) internal successors, (4767), 7 states have internal predecessors, (4767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:24,414 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:13:24,414 INFO  L93              Difference]: Finished difference Result 21953 states and 36466 transitions.
[2023-12-25 17:13:24,414 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:13:24,415 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 681.0) internal successors, (4767), 7 states have internal predecessors, (4767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5108
[2023-12-25 17:13:24,418 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:13:24,430 INFO  L225             Difference]: With dead ends: 21953
[2023-12-25 17:13:24,430 INFO  L226             Difference]: Without dead ends: 14796
[2023-12-25 17:13:24,437 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5117 GetRequests, 5105 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:13:24,437 INFO  L413           NwaCegarLoop]: 12802 mSDtfsCounter, 33832 mSDsluCounter, 50337 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33832 SdHoareTripleChecker+Valid, 63139 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:13:24,437 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33832 Valid, 63139 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:13:24,445 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14796 states.
[2023-12-25 17:13:24,502 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14796 to 7900.
[2023-12-25 17:13:24,507 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7900 states, 7899 states have (on average 1.6614761362197747) internal successors, (13124), 7899 states have internal predecessors, (13124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:24,513 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7900 states to 7900 states and 13124 transitions.
[2023-12-25 17:13:24,513 INFO  L78                 Accepts]: Start accepts. Automaton has 7900 states and 13124 transitions. Word has length 5108
[2023-12-25 17:13:24,515 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:13:24,515 INFO  L495      AbstractCegarLoop]: Abstraction has 7900 states and 13124 transitions.
[2023-12-25 17:13:24,516 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 681.0) internal successors, (4767), 7 states have internal predecessors, (4767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:24,516 INFO  L276                IsEmpty]: Start isEmpty. Operand 7900 states and 13124 transitions.
[2023-12-25 17:13:24,748 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5110
[2023-12-25 17:13:24,748 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:13:24,750 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:13:24,840 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0
[2023-12-25 17:13:24,950 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54
[2023-12-25 17:13:24,950 INFO  L420      AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:13:24,950 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:13:24,951 INFO  L85        PathProgramCache]: Analyzing trace with hash -1191624114, now seen corresponding path program 1 times
[2023-12-25 17:13:24,951 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:13:24,951 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465860552]
[2023-12-25 17:13:24,951 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:13:24,951 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:13:25,310 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:13:25,310 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2083373648]
[2023-12-25 17:13:25,311 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:13:25,311 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:13:25,311 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:13:25,312 INFO  L229       MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:13:25,313 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process
[2023-12-25 17:13:31,986 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:13:32,188 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30774 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:13:32,252 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:13:32,431 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked.
[2023-12-25 17:13:32,431 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:13:32,431 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:13:32,431 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465860552]
[2023-12-25 17:13:32,432 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:13:32,432 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083373648]
[2023-12-25 17:13:32,432 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083373648] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:13:32,432 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:13:32,432 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:13:32,432 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456354259]
[2023-12-25 17:13:32,432 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:13:32,435 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:13:32,435 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:13:32,436 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:13:32,436 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:13:32,437 INFO  L87              Difference]: Start difference. First operand 7900 states and 13124 transitions. Second operand  has 7 states, 7 states have (on average 681.4285714285714) internal successors, (4770), 7 states have internal predecessors, (4770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:32,776 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:13:32,777 INFO  L93              Difference]: Finished difference Result 21959 states and 36472 transitions.
[2023-12-25 17:13:32,777 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:13:32,778 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 681.4285714285714) internal successors, (4770), 7 states have internal predecessors, (4770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5109
[2023-12-25 17:13:32,781 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:13:32,927 INFO  L225             Difference]: With dead ends: 21959
[2023-12-25 17:13:32,928 INFO  L226             Difference]: Without dead ends: 14797
[2023-12-25 17:13:32,931 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5118 GetRequests, 5106 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:13:32,933 INFO  L413           NwaCegarLoop]: 12797 mSDtfsCounter, 33831 mSDsluCounter, 50322 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33831 SdHoareTripleChecker+Valid, 63119 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:13:32,933 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33831 Valid, 63119 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:13:32,940 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14797 states.
[2023-12-25 17:13:32,997 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14797 to 7902.
[2023-12-25 17:13:33,003 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7902 states, 7901 states have (on average 1.6613086951018858) internal successors, (13126), 7901 states have internal predecessors, (13126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:33,009 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7902 states to 7902 states and 13126 transitions.
[2023-12-25 17:13:33,010 INFO  L78                 Accepts]: Start accepts. Automaton has 7902 states and 13126 transitions. Word has length 5109
[2023-12-25 17:13:33,011 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:13:33,012 INFO  L495      AbstractCegarLoop]: Abstraction has 7902 states and 13126 transitions.
[2023-12-25 17:13:33,012 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 681.4285714285714) internal successors, (4770), 7 states have internal predecessors, (4770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:33,012 INFO  L276                IsEmpty]: Start isEmpty. Operand 7902 states and 13126 transitions.
[2023-12-25 17:13:33,137 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5111
[2023-12-25 17:13:33,137 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:13:33,138 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:13:33,227 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0
[2023-12-25 17:13:33,339 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55
[2023-12-25 17:13:33,339 INFO  L420      AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:13:33,339 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:13:33,340 INFO  L85        PathProgramCache]: Analyzing trace with hash -1002341222, now seen corresponding path program 1 times
[2023-12-25 17:13:33,340 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:13:33,340 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930065341]
[2023-12-25 17:13:33,340 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:13:33,340 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:13:33,726 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:13:33,727 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1450126793]
[2023-12-25 17:13:33,728 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:13:33,728 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:13:33,728 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:13:33,729 INFO  L229       MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:13:33,729 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process
[2023-12-25 17:13:40,561 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:13:40,742 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30777 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:13:40,793 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:13:40,993 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked.
[2023-12-25 17:13:40,994 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:13:40,994 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:13:40,994 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930065341]
[2023-12-25 17:13:40,994 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:13:40,994 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450126793]
[2023-12-25 17:13:40,994 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450126793] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:13:40,994 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:13:40,995 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:13:40,995 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344189659]
[2023-12-25 17:13:40,995 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:13:40,998 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:13:40,998 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:13:41,000 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:13:41,001 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:13:41,001 INFO  L87              Difference]: Start difference. First operand 7902 states and 13126 transitions. Second operand  has 7 states, 7 states have (on average 681.8571428571429) internal successors, (4773), 7 states have internal predecessors, (4773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:41,344 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:13:41,344 INFO  L93              Difference]: Finished difference Result 21965 states and 36478 transitions.
[2023-12-25 17:13:41,344 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:13:41,345 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 681.8571428571429) internal successors, (4773), 7 states have internal predecessors, (4773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5110
[2023-12-25 17:13:41,348 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:13:41,360 INFO  L225             Difference]: With dead ends: 21965
[2023-12-25 17:13:41,360 INFO  L226             Difference]: Without dead ends: 14798
[2023-12-25 17:13:41,367 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5119 GetRequests, 5107 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:13:41,367 INFO  L413           NwaCegarLoop]: 12792 mSDtfsCounter, 33830 mSDsluCounter, 50307 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33830 SdHoareTripleChecker+Valid, 63099 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:13:41,368 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33830 Valid, 63099 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:13:41,376 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14798 states.
[2023-12-25 17:13:41,436 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14798 to 7904.
[2023-12-25 17:13:41,441 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7904 states, 7903 states have (on average 1.661141338732127) internal successors, (13128), 7903 states have internal predecessors, (13128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:41,447 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7904 states to 7904 states and 13128 transitions.
[2023-12-25 17:13:41,447 INFO  L78                 Accepts]: Start accepts. Automaton has 7904 states and 13128 transitions. Word has length 5110
[2023-12-25 17:13:41,449 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:13:41,449 INFO  L495      AbstractCegarLoop]: Abstraction has 7904 states and 13128 transitions.
[2023-12-25 17:13:41,450 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 681.8571428571429) internal successors, (4773), 7 states have internal predecessors, (4773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:41,450 INFO  L276                IsEmpty]: Start isEmpty. Operand 7904 states and 13128 transitions.
[2023-12-25 17:13:41,576 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5112
[2023-12-25 17:13:41,576 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:13:41,577 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:13:41,672 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0
[2023-12-25 17:13:41,777 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,55 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:13:41,778 INFO  L420      AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:13:41,778 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:13:41,778 INFO  L85        PathProgramCache]: Analyzing trace with hash -16330904, now seen corresponding path program 1 times
[2023-12-25 17:13:41,778 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:13:41,778 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085369872]
[2023-12-25 17:13:41,779 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:13:41,779 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:13:42,255 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:13:42,255 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [818471516]
[2023-12-25 17:13:42,256 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:13:42,256 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:13:42,257 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:13:42,257 INFO  L229       MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:13:42,258 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process
[2023-12-25 17:13:48,884 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:13:49,072 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30780 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:13:49,129 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:13:49,305 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked.
[2023-12-25 17:13:49,306 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:13:49,306 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:13:49,306 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085369872]
[2023-12-25 17:13:49,306 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:13:49,306 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818471516]
[2023-12-25 17:13:49,306 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [818471516] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:13:49,306 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:13:49,306 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:13:49,306 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774471054]
[2023-12-25 17:13:49,307 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:13:49,309 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:13:49,309 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:13:49,310 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:13:49,311 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:13:49,311 INFO  L87              Difference]: Start difference. First operand 7904 states and 13128 transitions. Second operand  has 7 states, 7 states have (on average 682.2857142857143) internal successors, (4776), 7 states have internal predecessors, (4776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:49,641 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:13:49,641 INFO  L93              Difference]: Finished difference Result 21971 states and 36484 transitions.
[2023-12-25 17:13:49,641 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:13:49,642 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 682.2857142857143) internal successors, (4776), 7 states have internal predecessors, (4776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5111
[2023-12-25 17:13:49,645 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:13:49,657 INFO  L225             Difference]: With dead ends: 21971
[2023-12-25 17:13:49,657 INFO  L226             Difference]: Without dead ends: 14799
[2023-12-25 17:13:49,664 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5120 GetRequests, 5108 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:13:49,664 INFO  L413           NwaCegarLoop]: 12787 mSDtfsCounter, 33829 mSDsluCounter, 50292 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33829 SdHoareTripleChecker+Valid, 63079 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:13:49,664 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33829 Valid, 63079 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:13:49,673 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14799 states.
[2023-12-25 17:13:49,731 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14799 to 7906.
[2023-12-25 17:13:49,737 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7906 states, 7905 states have (on average 1.6609740670461732) internal successors, (13130), 7905 states have internal predecessors, (13130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:49,742 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7906 states to 7906 states and 13130 transitions.
[2023-12-25 17:13:49,743 INFO  L78                 Accepts]: Start accepts. Automaton has 7906 states and 13130 transitions. Word has length 5111
[2023-12-25 17:13:49,744 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:13:49,744 INFO  L495      AbstractCegarLoop]: Abstraction has 7906 states and 13130 transitions.
[2023-12-25 17:13:49,745 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 682.2857142857143) internal successors, (4776), 7 states have internal predecessors, (4776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:49,745 INFO  L276                IsEmpty]: Start isEmpty. Operand 7906 states and 13130 transitions.
[2023-12-25 17:13:49,975 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5113
[2023-12-25 17:13:49,976 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:13:49,977 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:13:50,070 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0
[2023-12-25 17:13:50,177 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,56 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:13:50,177 INFO  L420      AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:13:50,178 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:13:50,178 INFO  L85        PathProgramCache]: Analyzing trace with hash -119491456, now seen corresponding path program 1 times
[2023-12-25 17:13:50,178 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:13:50,178 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405646421]
[2023-12-25 17:13:50,179 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:13:50,179 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:13:50,543 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:13:50,543 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214621919]
[2023-12-25 17:13:50,544 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:13:50,544 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:13:50,545 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:13:50,545 INFO  L229       MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:13:50,546 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process
[2023-12-25 17:13:57,152 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:13:57,337 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30783 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:13:57,395 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:13:57,766 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked.
[2023-12-25 17:13:57,766 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:13:57,766 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:13:57,766 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405646421]
[2023-12-25 17:13:57,766 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:13:57,766 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214621919]
[2023-12-25 17:13:57,766 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214621919] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:13:57,766 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:13:57,767 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:13:57,767 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658018008]
[2023-12-25 17:13:57,767 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:13:57,769 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:13:57,769 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:13:57,771 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:13:57,771 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:13:57,772 INFO  L87              Difference]: Start difference. First operand 7906 states and 13130 transitions. Second operand  has 7 states, 7 states have (on average 682.7142857142857) internal successors, (4779), 7 states have internal predecessors, (4779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:58,117 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:13:58,117 INFO  L93              Difference]: Finished difference Result 21977 states and 36490 transitions.
[2023-12-25 17:13:58,117 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:13:58,118 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 682.7142857142857) internal successors, (4779), 7 states have internal predecessors, (4779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5112
[2023-12-25 17:13:58,122 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:13:58,136 INFO  L225             Difference]: With dead ends: 21977
[2023-12-25 17:13:58,136 INFO  L226             Difference]: Without dead ends: 14800
[2023-12-25 17:13:58,144 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5121 GetRequests, 5109 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:13:58,144 INFO  L413           NwaCegarLoop]: 12782 mSDtfsCounter, 33828 mSDsluCounter, 50277 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33828 SdHoareTripleChecker+Valid, 63059 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:13:58,144 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33828 Valid, 63059 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:13:58,153 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14800 states.
[2023-12-25 17:13:58,223 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14800 to 7908.
[2023-12-25 17:13:58,229 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7908 states, 7907 states have (on average 1.6608068799797648) internal successors, (13132), 7907 states have internal predecessors, (13132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:58,235 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7908 states to 7908 states and 13132 transitions.
[2023-12-25 17:13:58,235 INFO  L78                 Accepts]: Start accepts. Automaton has 7908 states and 13132 transitions. Word has length 5112
[2023-12-25 17:13:58,236 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:13:58,237 INFO  L495      AbstractCegarLoop]: Abstraction has 7908 states and 13132 transitions.
[2023-12-25 17:13:58,237 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 682.7142857142857) internal successors, (4779), 7 states have internal predecessors, (4779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:13:58,238 INFO  L276                IsEmpty]: Start isEmpty. Operand 7908 states and 13132 transitions.
[2023-12-25 17:13:58,363 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5114
[2023-12-25 17:13:58,363 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:13:58,364 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:13:58,460 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0
[2023-12-25 17:13:58,565 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,57 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:13:58,565 INFO  L420      AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:13:58,565 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:13:58,566 INFO  L85        PathProgramCache]: Analyzing trace with hash 621030660, now seen corresponding path program 1 times
[2023-12-25 17:13:58,566 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:13:58,566 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498715370]
[2023-12-25 17:13:58,566 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:13:58,566 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:13:58,938 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:13:58,938 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1838574463]
[2023-12-25 17:13:58,939 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:13:58,940 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:13:58,940 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:13:58,941 INFO  L229       MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:13:58,941 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process
[2023-12-25 17:14:05,728 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:14:05,935 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30787 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:14:05,995 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:14:06,174 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked.
[2023-12-25 17:14:06,175 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:14:06,175 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:14:06,175 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498715370]
[2023-12-25 17:14:06,175 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:14:06,175 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838574463]
[2023-12-25 17:14:06,175 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838574463] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:14:06,175 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:14:06,175 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:14:06,175 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75529825]
[2023-12-25 17:14:06,176 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:14:06,178 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:14:06,178 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:14:06,180 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:14:06,180 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:14:06,180 INFO  L87              Difference]: Start difference. First operand 7908 states and 13132 transitions. Second operand  has 7 states, 7 states have (on average 683.1428571428571) internal successors, (4782), 7 states have internal predecessors, (4782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:06,514 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:14:06,514 INFO  L93              Difference]: Finished difference Result 21983 states and 36496 transitions.
[2023-12-25 17:14:06,514 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:14:06,515 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 683.1428571428571) internal successors, (4782), 7 states have internal predecessors, (4782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5113
[2023-12-25 17:14:06,518 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:14:06,530 INFO  L225             Difference]: With dead ends: 21983
[2023-12-25 17:14:06,530 INFO  L226             Difference]: Without dead ends: 14801
[2023-12-25 17:14:06,536 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5122 GetRequests, 5110 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:14:06,537 INFO  L413           NwaCegarLoop]: 12777 mSDtfsCounter, 33827 mSDsluCounter, 50262 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33827 SdHoareTripleChecker+Valid, 63039 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:14:06,537 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33827 Valid, 63039 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:14:06,544 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14801 states.
[2023-12-25 17:14:06,609 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14801 to 7910.
[2023-12-25 17:14:06,614 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7910 states, 7909 states have (on average 1.6606397774687065) internal successors, (13134), 7909 states have internal predecessors, (13134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:06,620 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7910 states to 7910 states and 13134 transitions.
[2023-12-25 17:14:06,620 INFO  L78                 Accepts]: Start accepts. Automaton has 7910 states and 13134 transitions. Word has length 5113
[2023-12-25 17:14:06,622 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:14:06,622 INFO  L495      AbstractCegarLoop]: Abstraction has 7910 states and 13134 transitions.
[2023-12-25 17:14:06,623 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 683.1428571428571) internal successors, (4782), 7 states have internal predecessors, (4782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:06,623 INFO  L276                IsEmpty]: Start isEmpty. Operand 7910 states and 13134 transitions.
[2023-12-25 17:14:06,845 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5115
[2023-12-25 17:14:06,845 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:14:06,846 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:14:06,944 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0
[2023-12-25 17:14:07,047 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59
[2023-12-25 17:14:07,047 INFO  L420      AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:14:07,047 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:14:07,048 INFO  L85        PathProgramCache]: Analyzing trace with hash -1561743128, now seen corresponding path program 1 times
[2023-12-25 17:14:07,048 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:14:07,048 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328899665]
[2023-12-25 17:14:07,048 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:14:07,048 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:14:07,411 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:14:07,411 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1114209133]
[2023-12-25 17:14:07,412 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:14:07,412 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:14:07,412 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:14:07,413 INFO  L229       MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:14:07,414 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process
[2023-12-25 17:14:14,025 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:14:14,220 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30790 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:14:14,277 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:14:14,453 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked.
[2023-12-25 17:14:14,453 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:14:14,453 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:14:14,453 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328899665]
[2023-12-25 17:14:14,453 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:14:14,453 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114209133]
[2023-12-25 17:14:14,453 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114209133] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:14:14,453 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:14:14,454 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:14:14,454 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562884561]
[2023-12-25 17:14:14,454 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:14:14,456 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:14:14,456 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:14:14,458 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:14:14,458 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:14:14,458 INFO  L87              Difference]: Start difference. First operand 7910 states and 13134 transitions. Second operand  has 7 states, 7 states have (on average 683.5714285714286) internal successors, (4785), 7 states have internal predecessors, (4785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:14,903 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:14:14,903 INFO  L93              Difference]: Finished difference Result 21989 states and 36502 transitions.
[2023-12-25 17:14:14,912 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:14:14,913 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 683.5714285714286) internal successors, (4785), 7 states have internal predecessors, (4785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5114
[2023-12-25 17:14:14,916 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:14:14,928 INFO  L225             Difference]: With dead ends: 21989
[2023-12-25 17:14:14,928 INFO  L226             Difference]: Without dead ends: 14802
[2023-12-25 17:14:14,934 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5123 GetRequests, 5111 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:14:14,934 INFO  L413           NwaCegarLoop]: 12772 mSDtfsCounter, 33826 mSDsluCounter, 50247 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33826 SdHoareTripleChecker+Valid, 63019 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:14:14,934 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33826 Valid, 63019 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:14:14,942 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14802 states.
[2023-12-25 17:14:15,004 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14802 to 7912.
[2023-12-25 17:14:15,010 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7912 states, 7911 states have (on average 1.6604727594488686) internal successors, (13136), 7911 states have internal predecessors, (13136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:15,019 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7912 states to 7912 states and 13136 transitions.
[2023-12-25 17:14:15,020 INFO  L78                 Accepts]: Start accepts. Automaton has 7912 states and 13136 transitions. Word has length 5114
[2023-12-25 17:14:15,022 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:14:15,022 INFO  L495      AbstractCegarLoop]: Abstraction has 7912 states and 13136 transitions.
[2023-12-25 17:14:15,023 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 683.5714285714286) internal successors, (4785), 7 states have internal predecessors, (4785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:15,023 INFO  L276                IsEmpty]: Start isEmpty. Operand 7912 states and 13136 transitions.
[2023-12-25 17:14:15,154 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5116
[2023-12-25 17:14:15,154 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:14:15,155 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:14:15,251 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0
[2023-12-25 17:14:15,356 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60
[2023-12-25 17:14:15,356 INFO  L420      AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:14:15,356 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:14:15,357 INFO  L85        PathProgramCache]: Analyzing trace with hash 725636638, now seen corresponding path program 1 times
[2023-12-25 17:14:15,357 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:14:15,357 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19849094]
[2023-12-25 17:14:15,357 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:14:15,357 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:14:15,744 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:14:15,744 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1418583073]
[2023-12-25 17:14:15,745 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:14:15,745 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:14:15,746 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:14:15,746 INFO  L229       MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:14:15,747 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process
[2023-12-25 17:14:22,613 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:14:22,795 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30793 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:14:22,851 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:14:23,028 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked.
[2023-12-25 17:14:23,028 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:14:23,028 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:14:23,028 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19849094]
[2023-12-25 17:14:23,028 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:14:23,028 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418583073]
[2023-12-25 17:14:23,029 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418583073] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:14:23,029 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:14:23,029 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:14:23,029 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203469348]
[2023-12-25 17:14:23,029 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:14:23,032 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:14:23,032 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:14:23,033 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:14:23,033 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:14:23,034 INFO  L87              Difference]: Start difference. First operand 7912 states and 13136 transitions. Second operand  has 7 states, 7 states have (on average 684.0) internal successors, (4788), 7 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:23,375 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:14:23,375 INFO  L93              Difference]: Finished difference Result 21995 states and 36508 transitions.
[2023-12-25 17:14:23,375 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:14:23,376 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 684.0) internal successors, (4788), 7 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5115
[2023-12-25 17:14:23,379 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:14:23,392 INFO  L225             Difference]: With dead ends: 21995
[2023-12-25 17:14:23,393 INFO  L226             Difference]: Without dead ends: 14803
[2023-12-25 17:14:23,400 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5124 GetRequests, 5112 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:14:23,400 INFO  L413           NwaCegarLoop]: 12767 mSDtfsCounter, 33825 mSDsluCounter, 50232 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33825 SdHoareTripleChecker+Valid, 62999 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:14:23,400 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33825 Valid, 62999 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:14:23,409 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14803 states.
[2023-12-25 17:14:23,474 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14803 to 7914.
[2023-12-25 17:14:23,480 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7914 states, 7913 states have (on average 1.660305825856186) internal successors, (13138), 7913 states have internal predecessors, (13138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:23,486 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7914 states to 7914 states and 13138 transitions.
[2023-12-25 17:14:23,486 INFO  L78                 Accepts]: Start accepts. Automaton has 7914 states and 13138 transitions. Word has length 5115
[2023-12-25 17:14:23,488 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:14:23,488 INFO  L495      AbstractCegarLoop]: Abstraction has 7914 states and 13138 transitions.
[2023-12-25 17:14:23,489 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 684.0) internal successors, (4788), 7 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:23,489 INFO  L276                IsEmpty]: Start isEmpty. Operand 7914 states and 13138 transitions.
[2023-12-25 17:14:23,742 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5117
[2023-12-25 17:14:23,743 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:14:23,744 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:14:23,839 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0
[2023-12-25 17:14:23,944 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61
[2023-12-25 17:14:23,947 INFO  L420      AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:14:23,947 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:14:23,948 INFO  L85        PathProgramCache]: Analyzing trace with hash 1120480462, now seen corresponding path program 1 times
[2023-12-25 17:14:23,948 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:14:23,948 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907914537]
[2023-12-25 17:14:23,948 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:14:23,948 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:14:24,330 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:14:24,330 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [610747154]
[2023-12-25 17:14:24,331 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:14:24,331 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:14:24,331 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:14:24,332 INFO  L229       MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:14:24,333 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process
[2023-12-25 17:14:30,937 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:14:31,122 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30796 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:14:31,183 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:14:31,361 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked.
[2023-12-25 17:14:31,361 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:14:31,361 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:14:31,361 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907914537]
[2023-12-25 17:14:31,361 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:14:31,361 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610747154]
[2023-12-25 17:14:31,361 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [610747154] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:14:31,361 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:14:31,362 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:14:31,362 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259558517]
[2023-12-25 17:14:31,362 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:14:31,364 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:14:31,364 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:14:31,366 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:14:31,366 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:14:31,366 INFO  L87              Difference]: Start difference. First operand 7914 states and 13138 transitions. Second operand  has 7 states, 7 states have (on average 684.7142857142857) internal successors, (4793), 7 states have internal predecessors, (4793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:31,698 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:14:31,698 INFO  L93              Difference]: Finished difference Result 22004 states and 36519 transitions.
[2023-12-25 17:14:31,698 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:14:31,699 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 684.7142857142857) internal successors, (4793), 7 states have internal predecessors, (4793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5116
[2023-12-25 17:14:31,702 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:14:31,713 INFO  L225             Difference]: With dead ends: 22004
[2023-12-25 17:14:31,713 INFO  L226             Difference]: Without dead ends: 14807
[2023-12-25 17:14:31,720 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5125 GetRequests, 5113 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:14:31,721 INFO  L413           NwaCegarLoop]: 12757 mSDtfsCounter, 33827 mSDsluCounter, 50202 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33827 SdHoareTripleChecker+Valid, 62959 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:14:31,721 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33827 Valid, 62959 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:14:31,729 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14807 states.
[2023-12-25 17:14:31,787 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14807 to 7919.
[2023-12-25 17:14:31,793 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7919 states, 7918 states have (on average 1.660141449861076) internal successors, (13145), 7918 states have internal predecessors, (13145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:31,798 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7919 states to 7919 states and 13145 transitions.
[2023-12-25 17:14:31,799 INFO  L78                 Accepts]: Start accepts. Automaton has 7919 states and 13145 transitions. Word has length 5116
[2023-12-25 17:14:31,800 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:14:31,800 INFO  L495      AbstractCegarLoop]: Abstraction has 7919 states and 13145 transitions.
[2023-12-25 17:14:31,801 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 684.7142857142857) internal successors, (4793), 7 states have internal predecessors, (4793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:31,801 INFO  L276                IsEmpty]: Start isEmpty. Operand 7919 states and 13145 transitions.
[2023-12-25 17:14:32,027 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5118
[2023-12-25 17:14:32,027 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:14:32,029 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:14:32,122 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0
[2023-12-25 17:14:32,234 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,61 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:14:32,234 INFO  L420      AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:14:32,234 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:14:32,235 INFO  L85        PathProgramCache]: Analyzing trace with hash 239071186, now seen corresponding path program 1 times
[2023-12-25 17:14:32,235 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:14:32,235 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583912279]
[2023-12-25 17:14:32,235 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:14:32,235 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:14:32,590 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:14:32,590 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1035020542]
[2023-12-25 17:14:32,591 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:14:32,591 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:14:32,591 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:14:32,592 INFO  L229       MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:14:32,593 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process
[2023-12-25 17:14:39,205 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:14:39,398 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30799 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:14:39,455 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:14:39,632 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked.
[2023-12-25 17:14:39,632 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:14:39,632 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:14:39,632 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583912279]
[2023-12-25 17:14:39,632 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:14:39,632 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035020542]
[2023-12-25 17:14:39,633 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035020542] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:14:39,633 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:14:39,633 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:14:39,633 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127362811]
[2023-12-25 17:14:39,633 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:14:39,635 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:14:39,635 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:14:39,637 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:14:39,637 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:14:39,638 INFO  L87              Difference]: Start difference. First operand 7919 states and 13145 transitions. Second operand  has 7 states, 7 states have (on average 685.4285714285714) internal successors, (4798), 7 states have internal predecessors, (4798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:40,098 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:14:40,098 INFO  L93              Difference]: Finished difference Result 22019 states and 36540 transitions.
[2023-12-25 17:14:40,098 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:14:40,099 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 685.4285714285714) internal successors, (4798), 7 states have internal predecessors, (4798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5117
[2023-12-25 17:14:40,102 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:14:40,112 INFO  L225             Difference]: With dead ends: 22019
[2023-12-25 17:14:40,113 INFO  L226             Difference]: Without dead ends: 14811
[2023-12-25 17:14:40,118 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5126 GetRequests, 5114 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:14:40,118 INFO  L413           NwaCegarLoop]: 12747 mSDtfsCounter, 33831 mSDsluCounter, 50172 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33831 SdHoareTripleChecker+Valid, 62919 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:14:40,118 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33831 Valid, 62919 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:14:40,126 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14811 states.
[2023-12-25 17:14:40,183 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14811 to 7924.
[2023-12-25 17:14:40,188 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7924 states, 7923 states have (on average 1.6599772813328284) internal successors, (13152), 7923 states have internal predecessors, (13152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:40,194 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7924 states to 7924 states and 13152 transitions.
[2023-12-25 17:14:40,194 INFO  L78                 Accepts]: Start accepts. Automaton has 7924 states and 13152 transitions. Word has length 5117
[2023-12-25 17:14:40,196 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:14:40,196 INFO  L495      AbstractCegarLoop]: Abstraction has 7924 states and 13152 transitions.
[2023-12-25 17:14:40,197 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 685.4285714285714) internal successors, (4798), 7 states have internal predecessors, (4798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:40,197 INFO  L276                IsEmpty]: Start isEmpty. Operand 7924 states and 13152 transitions.
[2023-12-25 17:14:40,323 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5119
[2023-12-25 17:14:40,323 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:14:40,324 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:14:40,412 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0
[2023-12-25 17:14:40,525 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,62 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:14:40,525 INFO  L420      AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:14:40,525 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:14:40,526 INFO  L85        PathProgramCache]: Analyzing trace with hash 1114044954, now seen corresponding path program 1 times
[2023-12-25 17:14:40,526 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:14:40,526 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634936912]
[2023-12-25 17:14:40,526 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:14:40,526 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:14:40,886 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:14:40,887 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [439511236]
[2023-12-25 17:14:40,888 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:14:40,888 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:14:40,888 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:14:40,889 INFO  L229       MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:14:40,891 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process
[2023-12-25 17:14:47,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:14:47,837 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30802 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:14:47,889 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:14:48,068 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked.
[2023-12-25 17:14:48,069 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:14:48,069 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:14:48,069 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634936912]
[2023-12-25 17:14:48,069 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:14:48,069 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439511236]
[2023-12-25 17:14:48,069 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [439511236] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:14:48,069 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:14:48,069 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:14:48,069 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519751594]
[2023-12-25 17:14:48,070 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:14:48,072 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:14:48,072 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:14:48,074 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:14:48,074 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:14:48,074 INFO  L87              Difference]: Start difference. First operand 7924 states and 13152 transitions. Second operand  has 7 states, 7 states have (on average 686.1428571428571) internal successors, (4803), 7 states have internal predecessors, (4803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:48,406 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:14:48,406 INFO  L93              Difference]: Finished difference Result 22034 states and 36561 transitions.
[2023-12-25 17:14:48,406 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:14:48,407 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 686.1428571428571) internal successors, (4803), 7 states have internal predecessors, (4803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5118
[2023-12-25 17:14:48,410 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:14:48,422 INFO  L225             Difference]: With dead ends: 22034
[2023-12-25 17:14:48,422 INFO  L226             Difference]: Without dead ends: 14815
[2023-12-25 17:14:48,429 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5127 GetRequests, 5115 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:14:48,429 INFO  L413           NwaCegarLoop]: 12737 mSDtfsCounter, 33835 mSDsluCounter, 50142 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33835 SdHoareTripleChecker+Valid, 62879 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:14:48,429 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33835 Valid, 62879 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:14:48,438 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14815 states.
[2023-12-25 17:14:48,497 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14815 to 7929.
[2023-12-25 17:14:48,502 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7929 states, 7928 states have (on average 1.6598133198789102) internal successors, (13159), 7928 states have internal predecessors, (13159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:48,508 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7929 states to 7929 states and 13159 transitions.
[2023-12-25 17:14:48,509 INFO  L78                 Accepts]: Start accepts. Automaton has 7929 states and 13159 transitions. Word has length 5118
[2023-12-25 17:14:48,511 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:14:48,511 INFO  L495      AbstractCegarLoop]: Abstraction has 7929 states and 13159 transitions.
[2023-12-25 17:14:48,512 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 686.1428571428571) internal successors, (4803), 7 states have internal predecessors, (4803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:48,512 INFO  L276                IsEmpty]: Start isEmpty. Operand 7929 states and 13159 transitions.
[2023-12-25 17:14:48,638 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5120
[2023-12-25 17:14:48,638 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:14:48,639 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:14:48,729 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0
[2023-12-25 17:14:48,840 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64
[2023-12-25 17:14:48,840 INFO  L420      AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:14:48,840 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:14:48,841 INFO  L85        PathProgramCache]: Analyzing trace with hash 1560013702, now seen corresponding path program 1 times
[2023-12-25 17:14:48,841 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:14:48,841 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504796382]
[2023-12-25 17:14:48,841 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:14:48,841 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:14:49,317 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:14:49,317 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1101167508]
[2023-12-25 17:14:49,318 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:14:49,318 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:14:49,318 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:14:49,320 INFO  L229       MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:14:49,321 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process
[2023-12-25 17:14:55,877 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:14:56,090 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30805 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-25 17:14:56,148 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:14:56,335 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2023-12-25 17:14:56,335 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:14:56,335 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:14:56,336 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504796382]
[2023-12-25 17:14:56,336 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:14:56,336 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101167508]
[2023-12-25 17:14:56,336 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101167508] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:14:56,336 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:14:56,336 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-25 17:14:56,336 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491324006]
[2023-12-25 17:14:56,336 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:14:56,339 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-25 17:14:56,339 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:14:56,341 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-25 17:14:56,341 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2023-12-25 17:14:56,341 INFO  L87              Difference]: Start difference. First operand 7929 states and 13159 transitions. Second operand  has 8 states, 8 states have (on average 601.0) internal successors, (4808), 8 states have internal predecessors, (4808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:56,729 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:14:56,730 INFO  L93              Difference]: Finished difference Result 22051 states and 36584 transitions.
[2023-12-25 17:14:56,730 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2023-12-25 17:14:56,731 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 601.0) internal successors, (4808), 8 states have internal predecessors, (4808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5119
[2023-12-25 17:14:56,734 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:14:56,746 INFO  L225             Difference]: With dead ends: 22051
[2023-12-25 17:14:56,746 INFO  L226             Difference]: Without dead ends: 14821
[2023-12-25 17:14:56,753 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5129 GetRequests, 5115 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240
[2023-12-25 17:14:56,753 INFO  L413           NwaCegarLoop]: 12726 mSDtfsCounter, 33838 mSDsluCounter, 62828 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33838 SdHoareTripleChecker+Valid, 75554 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:14:56,753 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33838 Valid, 75554 Invalid, 74 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:14:56,761 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14821 states.
[2023-12-25 17:14:56,821 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14821 to 7934.
[2023-12-25 17:14:56,827 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7934 states, 7933 states have (on average 1.6596495651077776) internal successors, (13166), 7933 states have internal predecessors, (13166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:56,833 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7934 states to 7934 states and 13166 transitions.
[2023-12-25 17:14:56,833 INFO  L78                 Accepts]: Start accepts. Automaton has 7934 states and 13166 transitions. Word has length 5119
[2023-12-25 17:14:56,835 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:14:56,835 INFO  L495      AbstractCegarLoop]: Abstraction has 7934 states and 13166 transitions.
[2023-12-25 17:14:56,836 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 601.0) internal successors, (4808), 8 states have internal predecessors, (4808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:14:56,836 INFO  L276                IsEmpty]: Start isEmpty. Operand 7934 states and 13166 transitions.
[2023-12-25 17:14:57,061 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5121
[2023-12-25 17:14:57,062 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:14:57,063 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:14:57,156 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0
[2023-12-25 17:14:57,263 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65
[2023-12-25 17:14:57,264 INFO  L420      AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:14:57,264 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:14:57,264 INFO  L85        PathProgramCache]: Analyzing trace with hash -718142106, now seen corresponding path program 1 times
[2023-12-25 17:14:57,264 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:14:57,264 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333259231]
[2023-12-25 17:14:57,265 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:14:57,265 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:14:57,627 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:14:57,627 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1733009503]
[2023-12-25 17:14:57,628 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:14:57,628 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:14:57,628 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:14:57,629 INFO  L229       MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:14:57,630 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process
[2023-12-25 17:15:04,143 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:15:04,327 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30808 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:15:04,383 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:15:04,563 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked.
[2023-12-25 17:15:04,563 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:15:04,563 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:15:04,563 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333259231]
[2023-12-25 17:15:04,563 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:15:04,563 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733009503]
[2023-12-25 17:15:04,563 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733009503] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:15:04,563 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:15:04,564 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:15:04,564 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388061688]
[2023-12-25 17:15:04,564 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:15:04,566 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:15:04,566 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:15:04,568 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:15:04,568 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:15:04,568 INFO  L87              Difference]: Start difference. First operand 7934 states and 13166 transitions. Second operand  has 7 states, 7 states have (on average 687.5714285714286) internal successors, (4813), 7 states have internal predecessors, (4813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:04,909 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:15:04,909 INFO  L93              Difference]: Finished difference Result 22064 states and 36603 transitions.
[2023-12-25 17:15:04,909 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:15:04,911 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 687.5714285714286) internal successors, (4813), 7 states have internal predecessors, (4813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5120
[2023-12-25 17:15:04,914 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:15:04,927 INFO  L225             Difference]: With dead ends: 22064
[2023-12-25 17:15:04,927 INFO  L226             Difference]: Without dead ends: 14823
[2023-12-25 17:15:04,935 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5129 GetRequests, 5117 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:15:04,935 INFO  L413           NwaCegarLoop]: 12717 mSDtfsCounter, 33843 mSDsluCounter, 50082 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33843 SdHoareTripleChecker+Valid, 62799 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:15:04,936 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33843 Valid, 62799 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:15:04,946 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14823 states.
[2023-12-25 17:15:05,017 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14823 to 7939.
[2023-12-25 17:15:05,023 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7939 states, 7938 states have (on average 1.6594860166288739) internal successors, (13173), 7938 states have internal predecessors, (13173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:05,031 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7939 states to 7939 states and 13173 transitions.
[2023-12-25 17:15:05,031 INFO  L78                 Accepts]: Start accepts. Automaton has 7939 states and 13173 transitions. Word has length 5120
[2023-12-25 17:15:05,033 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:15:05,033 INFO  L495      AbstractCegarLoop]: Abstraction has 7939 states and 13173 transitions.
[2023-12-25 17:15:05,034 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 687.5714285714286) internal successors, (4813), 7 states have internal predecessors, (4813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:05,034 INFO  L276                IsEmpty]: Start isEmpty. Operand 7939 states and 13173 transitions.
[2023-12-25 17:15:05,295 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5122
[2023-12-25 17:15:05,295 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:15:05,296 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:15:05,391 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0
[2023-12-25 17:15:05,499 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,65 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:15:05,500 INFO  L420      AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:15:05,500 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:15:05,501 INFO  L85        PathProgramCache]: Analyzing trace with hash -634320582, now seen corresponding path program 1 times
[2023-12-25 17:15:05,501 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:15:05,501 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921023609]
[2023-12-25 17:15:05,501 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:15:05,501 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:15:05,895 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:15:05,895 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [593274287]
[2023-12-25 17:15:05,896 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:15:05,896 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:15:05,897 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:15:05,897 INFO  L229       MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:15:05,898 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process
[2023-12-25 17:15:12,668 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:15:12,864 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30811 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:15:12,925 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:15:13,107 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked.
[2023-12-25 17:15:13,108 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:15:13,108 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:15:13,108 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921023609]
[2023-12-25 17:15:13,108 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:15:13,108 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593274287]
[2023-12-25 17:15:13,108 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [593274287] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:15:13,108 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:15:13,108 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:15:13,109 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72912820]
[2023-12-25 17:15:13,109 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:15:13,111 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:15:13,111 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:15:13,113 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:15:13,113 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:15:13,113 INFO  L87              Difference]: Start difference. First operand 7939 states and 13173 transitions. Second operand  has 7 states, 7 states have (on average 688.2857142857143) internal successors, (4818), 7 states have internal predecessors, (4818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:13,610 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:15:13,610 INFO  L93              Difference]: Finished difference Result 22079 states and 36624 transitions.
[2023-12-25 17:15:13,611 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:15:13,612 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 688.2857142857143) internal successors, (4818), 7 states have internal predecessors, (4818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5121
[2023-12-25 17:15:13,615 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:15:13,625 INFO  L225             Difference]: With dead ends: 22079
[2023-12-25 17:15:13,625 INFO  L226             Difference]: Without dead ends: 14827
[2023-12-25 17:15:13,631 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5130 GetRequests, 5118 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:15:13,631 INFO  L413           NwaCegarLoop]: 12707 mSDtfsCounter, 33847 mSDsluCounter, 50052 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33847 SdHoareTripleChecker+Valid, 62759 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:15:13,631 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33847 Valid, 62759 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:15:13,639 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14827 states.
[2023-12-25 17:15:13,703 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14827 to 7944.
[2023-12-25 17:15:13,710 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7944 states, 7943 states have (on average 1.659322674052625) internal successors, (13180), 7943 states have internal predecessors, (13180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:13,717 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7944 states to 7944 states and 13180 transitions.
[2023-12-25 17:15:13,717 INFO  L78                 Accepts]: Start accepts. Automaton has 7944 states and 13180 transitions. Word has length 5121
[2023-12-25 17:15:13,720 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:15:13,720 INFO  L495      AbstractCegarLoop]: Abstraction has 7944 states and 13180 transitions.
[2023-12-25 17:15:13,720 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 688.2857142857143) internal successors, (4818), 7 states have internal predecessors, (4818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:13,720 INFO  L276                IsEmpty]: Start isEmpty. Operand 7944 states and 13180 transitions.
[2023-12-25 17:15:13,847 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5123
[2023-12-25 17:15:13,847 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:15:13,849 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:15:13,948 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0
[2023-12-25 17:15:14,049 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67
[2023-12-25 17:15:14,049 INFO  L420      AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:15:14,050 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:15:14,050 INFO  L85        PathProgramCache]: Analyzing trace with hash -2100457806, now seen corresponding path program 1 times
[2023-12-25 17:15:14,050 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:15:14,050 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477763544]
[2023-12-25 17:15:14,051 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:15:14,051 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:15:14,445 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:15:14,446 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [604250566]
[2023-12-25 17:15:14,447 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:15:14,447 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:15:14,447 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:15:14,448 INFO  L229       MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:15:14,448 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process
[2023-12-25 17:15:21,341 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:15:21,530 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30814 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:15:21,587 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:15:21,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked.
[2023-12-25 17:15:21,766 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:15:21,766 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:15:21,766 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477763544]
[2023-12-25 17:15:21,766 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:15:21,766 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604250566]
[2023-12-25 17:15:21,766 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [604250566] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:15:21,766 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:15:21,766 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:15:21,767 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114386683]
[2023-12-25 17:15:21,767 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:15:21,769 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:15:21,769 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:15:21,771 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:15:21,771 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:15:21,771 INFO  L87              Difference]: Start difference. First operand 7944 states and 13180 transitions. Second operand  has 7 states, 7 states have (on average 689.0) internal successors, (4823), 7 states have internal predecessors, (4823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:22,114 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:15:22,114 INFO  L93              Difference]: Finished difference Result 22094 states and 36645 transitions.
[2023-12-25 17:15:22,115 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:15:22,116 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 689.0) internal successors, (4823), 7 states have internal predecessors, (4823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5122
[2023-12-25 17:15:22,119 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:15:22,130 INFO  L225             Difference]: With dead ends: 22094
[2023-12-25 17:15:22,131 INFO  L226             Difference]: Without dead ends: 14831
[2023-12-25 17:15:22,138 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5131 GetRequests, 5119 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:15:22,138 INFO  L413           NwaCegarLoop]: 12697 mSDtfsCounter, 33851 mSDsluCounter, 50022 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33851 SdHoareTripleChecker+Valid, 62719 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:15:22,138 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33851 Valid, 62719 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:15:22,148 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14831 states.
[2023-12-25 17:15:22,216 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14831 to 7949.
[2023-12-25 17:15:22,221 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7949 states, 7948 states have (on average 1.659159536990438) internal successors, (13187), 7948 states have internal predecessors, (13187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:22,228 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7949 states to 7949 states and 13187 transitions.
[2023-12-25 17:15:22,228 INFO  L78                 Accepts]: Start accepts. Automaton has 7949 states and 13187 transitions. Word has length 5122
[2023-12-25 17:15:22,230 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:15:22,230 INFO  L495      AbstractCegarLoop]: Abstraction has 7949 states and 13187 transitions.
[2023-12-25 17:15:22,231 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 689.0) internal successors, (4823), 7 states have internal predecessors, (4823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:22,231 INFO  L276                IsEmpty]: Start isEmpty. Operand 7949 states and 13187 transitions.
[2023-12-25 17:15:22,486 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5124
[2023-12-25 17:15:22,487 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:15:22,488 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:15:22,585 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0
[2023-12-25 17:15:22,688 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68
[2023-12-25 17:15:22,689 INFO  L420      AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:15:22,689 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:15:22,689 INFO  L85        PathProgramCache]: Analyzing trace with hash 2094794990, now seen corresponding path program 1 times
[2023-12-25 17:15:22,689 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:15:22,689 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102198360]
[2023-12-25 17:15:22,690 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:15:22,690 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:15:23,073 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:15:23,073 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [316937569]
[2023-12-25 17:15:23,074 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:15:23,074 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:15:23,074 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:15:23,075 INFO  L229       MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:15:23,092 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process
[2023-12-25 17:15:29,834 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:15:30,030 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30817 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:15:30,089 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:15:30,276 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked.
[2023-12-25 17:15:30,276 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:15:30,276 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:15:30,276 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102198360]
[2023-12-25 17:15:30,276 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:15:30,276 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316937569]
[2023-12-25 17:15:30,276 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [316937569] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:15:30,276 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:15:30,277 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:15:30,277 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549510666]
[2023-12-25 17:15:30,277 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:15:30,279 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:15:30,279 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:15:30,281 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:15:30,281 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:15:30,282 INFO  L87              Difference]: Start difference. First operand 7949 states and 13187 transitions. Second operand  has 7 states, 7 states have (on average 689.7142857142857) internal successors, (4828), 7 states have internal predecessors, (4828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:30,624 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:15:30,624 INFO  L93              Difference]: Finished difference Result 22109 states and 36666 transitions.
[2023-12-25 17:15:30,624 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:15:30,625 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 689.7142857142857) internal successors, (4828), 7 states have internal predecessors, (4828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5123
[2023-12-25 17:15:30,628 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:15:30,641 INFO  L225             Difference]: With dead ends: 22109
[2023-12-25 17:15:30,641 INFO  L226             Difference]: Without dead ends: 14835
[2023-12-25 17:15:30,649 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5132 GetRequests, 5120 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:15:30,650 INFO  L413           NwaCegarLoop]: 12687 mSDtfsCounter, 33855 mSDsluCounter, 49992 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33855 SdHoareTripleChecker+Valid, 62679 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:15:30,650 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33855 Valid, 62679 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:15:30,659 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14835 states.
[2023-12-25 17:15:30,844 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14835 to 7954.
[2023-12-25 17:15:30,850 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7954 states, 7953 states have (on average 1.6589966050546963) internal successors, (13194), 7953 states have internal predecessors, (13194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:30,857 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7954 states to 7954 states and 13194 transitions.
[2023-12-25 17:15:30,857 INFO  L78                 Accepts]: Start accepts. Automaton has 7954 states and 13194 transitions. Word has length 5123
[2023-12-25 17:15:30,859 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:15:30,859 INFO  L495      AbstractCegarLoop]: Abstraction has 7954 states and 13194 transitions.
[2023-12-25 17:15:30,859 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 689.7142857142857) internal successors, (4828), 7 states have internal predecessors, (4828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:30,859 INFO  L276                IsEmpty]: Start isEmpty. Operand 7954 states and 13194 transitions.
[2023-12-25 17:15:30,986 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5125
[2023-12-25 17:15:30,986 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:15:30,988 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:15:31,089 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0
[2023-12-25 17:15:31,188 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69
[2023-12-25 17:15:31,188 INFO  L420      AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:15:31,189 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:15:31,189 INFO  L85        PathProgramCache]: Analyzing trace with hash 1285346814, now seen corresponding path program 1 times
[2023-12-25 17:15:31,189 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:15:31,189 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894752534]
[2023-12-25 17:15:31,190 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:15:31,190 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:15:31,568 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:15:31,568 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1959964489]
[2023-12-25 17:15:31,569 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:15:31,569 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:15:31,570 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:15:31,570 INFO  L229       MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:15:31,571 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process
[2023-12-25 17:15:38,316 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:15:38,507 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30820 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:15:38,566 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:15:38,943 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked.
[2023-12-25 17:15:38,943 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:15:38,943 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:15:38,943 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894752534]
[2023-12-25 17:15:38,944 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:15:38,944 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959964489]
[2023-12-25 17:15:38,944 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959964489] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:15:38,944 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:15:38,944 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:15:38,944 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986701439]
[2023-12-25 17:15:38,944 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:15:38,946 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:15:38,947 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:15:38,948 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:15:38,948 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:15:38,949 INFO  L87              Difference]: Start difference. First operand 7954 states and 13194 transitions. Second operand  has 7 states, 7 states have (on average 690.4285714285714) internal successors, (4833), 7 states have internal predecessors, (4833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:39,284 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:15:39,284 INFO  L93              Difference]: Finished difference Result 22124 states and 36687 transitions.
[2023-12-25 17:15:39,285 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:15:39,286 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 690.4285714285714) internal successors, (4833), 7 states have internal predecessors, (4833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5124
[2023-12-25 17:15:39,289 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:15:39,302 INFO  L225             Difference]: With dead ends: 22124
[2023-12-25 17:15:39,303 INFO  L226             Difference]: Without dead ends: 14839
[2023-12-25 17:15:39,310 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5133 GetRequests, 5121 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:15:39,311 INFO  L413           NwaCegarLoop]: 12677 mSDtfsCounter, 33859 mSDsluCounter, 49962 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33859 SdHoareTripleChecker+Valid, 62639 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:15:39,311 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33859 Valid, 62639 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:15:39,320 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14839 states.
[2023-12-25 17:15:39,386 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14839 to 7959.
[2023-12-25 17:15:39,393 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7959 states, 7958 states have (on average 1.6588338778587586) internal successors, (13201), 7958 states have internal predecessors, (13201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:39,400 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7959 states to 7959 states and 13201 transitions.
[2023-12-25 17:15:39,400 INFO  L78                 Accepts]: Start accepts. Automaton has 7959 states and 13201 transitions. Word has length 5124
[2023-12-25 17:15:39,402 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:15:39,402 INFO  L495      AbstractCegarLoop]: Abstraction has 7959 states and 13201 transitions.
[2023-12-25 17:15:39,403 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 690.4285714285714) internal successors, (4833), 7 states have internal predecessors, (4833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:39,403 INFO  L276                IsEmpty]: Start isEmpty. Operand 7959 states and 13201 transitions.
[2023-12-25 17:15:39,530 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5126
[2023-12-25 17:15:39,530 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:15:39,531 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:15:39,630 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0
[2023-12-25 17:15:39,731 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70
[2023-12-25 17:15:39,732 INFO  L420      AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:15:39,732 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:15:39,733 INFO  L85        PathProgramCache]: Analyzing trace with hash -1808160094, now seen corresponding path program 1 times
[2023-12-25 17:15:39,733 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:15:39,733 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326147812]
[2023-12-25 17:15:39,733 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:15:39,733 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:15:40,223 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:15:40,223 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [278147206]
[2023-12-25 17:15:40,224 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:15:40,224 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:15:40,224 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:15:40,225 INFO  L229       MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:15:40,227 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process
[2023-12-25 17:15:46,958 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:15:47,163 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30823 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:15:47,227 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:15:47,406 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2023-12-25 17:15:47,406 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:15:47,406 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:15:47,406 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326147812]
[2023-12-25 17:15:47,406 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:15:47,406 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278147206]
[2023-12-25 17:15:47,407 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [278147206] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:15:47,407 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:15:47,407 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:15:47,407 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663080407]
[2023-12-25 17:15:47,407 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:15:47,409 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:15:47,409 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:15:47,411 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:15:47,411 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:15:47,412 INFO  L87              Difference]: Start difference. First operand 7959 states and 13201 transitions. Second operand  has 7 states, 7 states have (on average 691.1428571428571) internal successors, (4838), 7 states have internal predecessors, (4838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:47,747 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:15:47,748 INFO  L93              Difference]: Finished difference Result 22139 states and 36708 transitions.
[2023-12-25 17:15:47,748 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:15:47,749 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 691.1428571428571) internal successors, (4838), 7 states have internal predecessors, (4838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5125
[2023-12-25 17:15:47,752 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:15:47,764 INFO  L225             Difference]: With dead ends: 22139
[2023-12-25 17:15:47,764 INFO  L226             Difference]: Without dead ends: 14843
[2023-12-25 17:15:47,771 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5134 GetRequests, 5122 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:15:47,771 INFO  L413           NwaCegarLoop]: 12667 mSDtfsCounter, 33863 mSDsluCounter, 49932 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33863 SdHoareTripleChecker+Valid, 62599 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:15:47,771 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33863 Valid, 62599 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:15:47,780 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14843 states.
[2023-12-25 17:15:47,843 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14843 to 7964.
[2023-12-25 17:15:47,848 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7964 states, 7963 states have (on average 1.6586713550169534) internal successors, (13208), 7963 states have internal predecessors, (13208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:47,854 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7964 states to 7964 states and 13208 transitions.
[2023-12-25 17:15:47,854 INFO  L78                 Accepts]: Start accepts. Automaton has 7964 states and 13208 transitions. Word has length 5125
[2023-12-25 17:15:47,856 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:15:47,856 INFO  L495      AbstractCegarLoop]: Abstraction has 7964 states and 13208 transitions.
[2023-12-25 17:15:47,857 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 691.1428571428571) internal successors, (4838), 7 states have internal predecessors, (4838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:47,857 INFO  L276                IsEmpty]: Start isEmpty. Operand 7964 states and 13208 transitions.
[2023-12-25 17:15:48,085 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5127
[2023-12-25 17:15:48,086 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:15:48,087 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:15:48,184 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0
[2023-12-25 17:15:48,287 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,70 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:15:48,288 INFO  L420      AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:15:48,288 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:15:48,288 INFO  L85        PathProgramCache]: Analyzing trace with hash -1983702198, now seen corresponding path program 1 times
[2023-12-25 17:15:48,288 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:15:48,288 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096680956]
[2023-12-25 17:15:48,289 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:15:48,289 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:15:48,663 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:15:48,663 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033671728]
[2023-12-25 17:15:48,664 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:15:48,665 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:15:48,665 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:15:48,665 INFO  L229       MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:15:48,666 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process
[2023-12-25 17:15:55,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:15:55,435 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30826 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:15:55,497 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:15:55,676 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked.
[2023-12-25 17:15:55,676 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:15:55,676 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:15:55,676 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096680956]
[2023-12-25 17:15:55,676 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:15:55,676 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033671728]
[2023-12-25 17:15:55,676 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033671728] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:15:55,676 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:15:55,677 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:15:55,677 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12245310]
[2023-12-25 17:15:55,677 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:15:55,679 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:15:55,679 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:15:55,681 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:15:55,681 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:15:55,682 INFO  L87              Difference]: Start difference. First operand 7964 states and 13208 transitions. Second operand  has 7 states, 7 states have (on average 691.8571428571429) internal successors, (4843), 7 states have internal predecessors, (4843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:56,186 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:15:56,186 INFO  L93              Difference]: Finished difference Result 22154 states and 36729 transitions.
[2023-12-25 17:15:56,187 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:15:56,188 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 691.8571428571429) internal successors, (4843), 7 states have internal predecessors, (4843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5126
[2023-12-25 17:15:56,191 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:15:56,200 INFO  L225             Difference]: With dead ends: 22154
[2023-12-25 17:15:56,200 INFO  L226             Difference]: Without dead ends: 14847
[2023-12-25 17:15:56,203 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5135 GetRequests, 5123 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:15:56,204 INFO  L413           NwaCegarLoop]: 12657 mSDtfsCounter, 33867 mSDsluCounter, 49902 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33867 SdHoareTripleChecker+Valid, 62559 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:15:56,204 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33867 Valid, 62559 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:15:56,212 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14847 states.
[2023-12-25 17:15:56,273 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14847 to 7969.
[2023-12-25 17:15:56,280 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7969 states, 7968 states have (on average 1.6585090361445782) internal successors, (13215), 7968 states have internal predecessors, (13215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:56,287 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7969 states to 7969 states and 13215 transitions.
[2023-12-25 17:15:56,287 INFO  L78                 Accepts]: Start accepts. Automaton has 7969 states and 13215 transitions. Word has length 5126
[2023-12-25 17:15:56,289 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:15:56,289 INFO  L495      AbstractCegarLoop]: Abstraction has 7969 states and 13215 transitions.
[2023-12-25 17:15:56,290 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 691.8571428571429) internal successors, (4843), 7 states have internal predecessors, (4843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:15:56,290 INFO  L276                IsEmpty]: Start isEmpty. Operand 7969 states and 13215 transitions.
[2023-12-25 17:15:56,417 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5128
[2023-12-25 17:15:56,417 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:15:56,418 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:15:56,516 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0
[2023-12-25 17:15:56,618 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,71 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:15:56,619 INFO  L420      AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:15:56,619 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:15:56,620 INFO  L85        PathProgramCache]: Analyzing trace with hash -339300778, now seen corresponding path program 1 times
[2023-12-25 17:15:56,620 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:15:56,620 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4552896]
[2023-12-25 17:15:56,620 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:15:56,620 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:15:57,005 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:15:57,006 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2123809889]
[2023-12-25 17:15:57,007 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:15:57,007 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:15:57,007 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:15:57,008 INFO  L229       MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:15:57,008 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process
[2023-12-25 17:16:03,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:16:03,734 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30829 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-25 17:16:04,026 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:16:04,212 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked.
[2023-12-25 17:16:04,212 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:16:04,212 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:16:04,212 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4552896]
[2023-12-25 17:16:04,212 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:16:04,212 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123809889]
[2023-12-25 17:16:04,212 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123809889] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:16:04,213 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:16:04,213 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-25 17:16:04,213 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981030781]
[2023-12-25 17:16:04,213 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:16:04,215 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-25 17:16:04,216 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:16:04,217 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-25 17:16:04,217 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2023-12-25 17:16:04,218 INFO  L87              Difference]: Start difference. First operand 7969 states and 13215 transitions. Second operand  has 8 states, 8 states have (on average 605.75) internal successors, (4846), 8 states have internal predecessors, (4846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:04,601 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:16:04,601 INFO  L93              Difference]: Finished difference Result 22166 states and 36745 transitions.
[2023-12-25 17:16:04,602 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:16:04,603 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 605.75) internal successors, (4846), 8 states have internal predecessors, (4846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5127
[2023-12-25 17:16:04,606 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:16:04,620 INFO  L225             Difference]: With dead ends: 22166
[2023-12-25 17:16:04,620 INFO  L226             Difference]: Without dead ends: 14848
[2023-12-25 17:16:04,627 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5136 GetRequests, 5123 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210
[2023-12-25 17:16:04,628 INFO  L413           NwaCegarLoop]: 12652 mSDtfsCounter, 33868 mSDsluCounter, 62536 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33868 SdHoareTripleChecker+Valid, 75188 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:16:04,628 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33868 Valid, 75188 Invalid, 59 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:16:04,636 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14848 states.
[2023-12-25 17:16:04,701 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14848 to 7971.
[2023-12-25 17:16:04,706 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7971 states, 7970 states have (on average 1.6583437892095358) internal successors, (13217), 7970 states have internal predecessors, (13217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:04,712 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7971 states to 7971 states and 13217 transitions.
[2023-12-25 17:16:04,712 INFO  L78                 Accepts]: Start accepts. Automaton has 7971 states and 13217 transitions. Word has length 5127
[2023-12-25 17:16:04,714 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:16:04,714 INFO  L495      AbstractCegarLoop]: Abstraction has 7971 states and 13217 transitions.
[2023-12-25 17:16:04,715 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 605.75) internal successors, (4846), 8 states have internal predecessors, (4846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:04,715 INFO  L276                IsEmpty]: Start isEmpty. Operand 7971 states and 13217 transitions.
[2023-12-25 17:16:04,842 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5129
[2023-12-25 17:16:04,843 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:16:04,844 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:16:04,935 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0
[2023-12-25 17:16:05,044 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,72 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:16:05,044 INFO  L420      AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:16:05,045 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:16:05,045 INFO  L85        PathProgramCache]: Analyzing trace with hash -585599376, now seen corresponding path program 1 times
[2023-12-25 17:16:05,045 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:16:05,045 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915211351]
[2023-12-25 17:16:05,046 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:16:05,046 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:16:05,505 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:16:05,506 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1219317989]
[2023-12-25 17:16:05,507 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:16:05,507 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:16:05,507 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:16:05,508 INFO  L229       MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:16:05,508 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process
[2023-12-25 17:16:12,174 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:16:12,369 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30832 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:16:12,427 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:16:12,615 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked.
[2023-12-25 17:16:12,615 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:16:12,615 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:16:12,615 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915211351]
[2023-12-25 17:16:12,615 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:16:12,615 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219317989]
[2023-12-25 17:16:12,615 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219317989] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:16:12,615 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:16:12,616 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:16:12,616 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108378876]
[2023-12-25 17:16:12,616 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:16:12,618 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:16:12,618 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:16:12,620 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:16:12,620 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:16:12,620 INFO  L87              Difference]: Start difference. First operand 7971 states and 13217 transitions. Second operand  has 7 states, 7 states have (on average 693.0) internal successors, (4851), 7 states have internal predecessors, (4851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:12,953 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:16:12,953 INFO  L93              Difference]: Finished difference Result 22175 states and 36756 transitions.
[2023-12-25 17:16:12,953 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:16:12,954 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 693.0) internal successors, (4851), 7 states have internal predecessors, (4851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5128
[2023-12-25 17:16:12,958 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:16:12,971 INFO  L225             Difference]: With dead ends: 22175
[2023-12-25 17:16:12,971 INFO  L226             Difference]: Without dead ends: 14852
[2023-12-25 17:16:12,978 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5137 GetRequests, 5125 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:16:12,978 INFO  L413           NwaCegarLoop]: 12642 mSDtfsCounter, 33870 mSDsluCounter, 49857 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33870 SdHoareTripleChecker+Valid, 62499 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:16:12,978 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33870 Valid, 62499 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:16:12,987 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14852 states.
[2023-12-25 17:16:13,050 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14852 to 7976.
[2023-12-25 17:16:13,055 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7976 states, 7975 states have (on average 1.6581818181818182) internal successors, (13224), 7975 states have internal predecessors, (13224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:13,061 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7976 states to 7976 states and 13224 transitions.
[2023-12-25 17:16:13,061 INFO  L78                 Accepts]: Start accepts. Automaton has 7976 states and 13224 transitions. Word has length 5128
[2023-12-25 17:16:13,063 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:16:13,063 INFO  L495      AbstractCegarLoop]: Abstraction has 7976 states and 13224 transitions.
[2023-12-25 17:16:13,064 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 693.0) internal successors, (4851), 7 states have internal predecessors, (4851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:13,064 INFO  L276                IsEmpty]: Start isEmpty. Operand 7976 states and 13224 transitions.
[2023-12-25 17:16:13,285 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5130
[2023-12-25 17:16:13,285 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:16:13,286 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:16:13,373 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0
[2023-12-25 17:16:13,486 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74
[2023-12-25 17:16:13,487 INFO  L420      AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:16:13,487 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:16:13,487 INFO  L85        PathProgramCache]: Analyzing trace with hash 221318348, now seen corresponding path program 1 times
[2023-12-25 17:16:13,487 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:16:13,488 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414417092]
[2023-12-25 17:16:13,488 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:16:13,488 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:16:13,852 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:16:13,852 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1671858535]
[2023-12-25 17:16:13,853 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:16:13,853 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:16:13,853 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:16:13,854 INFO  L229       MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:16:13,854 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process
[2023-12-25 17:16:20,458 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:16:20,654 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30836 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:16:20,715 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:16:21,101 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked.
[2023-12-25 17:16:21,102 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:16:21,102 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:16:21,102 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414417092]
[2023-12-25 17:16:21,102 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:16:21,102 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671858535]
[2023-12-25 17:16:21,102 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671858535] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:16:21,102 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:16:21,102 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:16:21,102 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962673560]
[2023-12-25 17:16:21,103 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:16:21,105 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:16:21,105 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:16:21,107 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:16:21,107 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:16:21,107 INFO  L87              Difference]: Start difference. First operand 7976 states and 13224 transitions. Second operand  has 7 states, 7 states have (on average 693.7142857142857) internal successors, (4856), 7 states have internal predecessors, (4856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:21,468 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:16:21,468 INFO  L93              Difference]: Finished difference Result 22190 states and 36777 transitions.
[2023-12-25 17:16:21,468 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:16:21,469 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 693.7142857142857) internal successors, (4856), 7 states have internal predecessors, (4856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5129
[2023-12-25 17:16:21,472 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:16:21,485 INFO  L225             Difference]: With dead ends: 22190
[2023-12-25 17:16:21,485 INFO  L226             Difference]: Without dead ends: 14856
[2023-12-25 17:16:21,493 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5138 GetRequests, 5126 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:16:21,493 INFO  L413           NwaCegarLoop]: 12632 mSDtfsCounter, 33874 mSDsluCounter, 49827 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33874 SdHoareTripleChecker+Valid, 62459 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:16:21,493 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33874 Valid, 62459 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:16:21,504 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14856 states.
[2023-12-25 17:16:21,574 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14856 to 7981.
[2023-12-25 17:16:21,581 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7981 states, 7980 states have (on average 1.6580200501253133) internal successors, (13231), 7980 states have internal predecessors, (13231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:21,587 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7981 states to 7981 states and 13231 transitions.
[2023-12-25 17:16:21,588 INFO  L78                 Accepts]: Start accepts. Automaton has 7981 states and 13231 transitions. Word has length 5129
[2023-12-25 17:16:21,590 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:16:21,590 INFO  L495      AbstractCegarLoop]: Abstraction has 7981 states and 13231 transitions.
[2023-12-25 17:16:21,591 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 693.7142857142857) internal successors, (4856), 7 states have internal predecessors, (4856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:21,591 INFO  L276                IsEmpty]: Start isEmpty. Operand 7981 states and 13231 transitions.
[2023-12-25 17:16:21,718 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5131
[2023-12-25 17:16:21,719 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:16:21,720 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:16:21,817 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0
[2023-12-25 17:16:21,920 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,74 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:16:21,921 INFO  L420      AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:16:21,921 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:16:21,921 INFO  L85        PathProgramCache]: Analyzing trace with hash -1020844034, now seen corresponding path program 1 times
[2023-12-25 17:16:21,921 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:16:21,921 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003810072]
[2023-12-25 17:16:21,922 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:16:21,922 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:16:22,323 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:16:22,323 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [422333548]
[2023-12-25 17:16:22,324 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:16:22,325 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:16:22,325 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:16:22,325 INFO  L229       MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:16:22,326 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process
[2023-12-25 17:16:29,247 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:16:29,455 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30839 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:16:29,520 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:16:29,702 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked.
[2023-12-25 17:16:29,702 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:16:29,702 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:16:29,702 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003810072]
[2023-12-25 17:16:29,702 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:16:29,702 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422333548]
[2023-12-25 17:16:29,702 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [422333548] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:16:29,702 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:16:29,703 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:16:29,703 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61205849]
[2023-12-25 17:16:29,703 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:16:29,705 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:16:29,705 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:16:29,707 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:16:29,707 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:16:29,708 INFO  L87              Difference]: Start difference. First operand 7981 states and 13231 transitions. Second operand  has 7 states, 7 states have (on average 694.4285714285714) internal successors, (4861), 7 states have internal predecessors, (4861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:30,124 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:16:30,124 INFO  L93              Difference]: Finished difference Result 22205 states and 36798 transitions.
[2023-12-25 17:16:30,124 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:16:30,125 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 694.4285714285714) internal successors, (4861), 7 states have internal predecessors, (4861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5130
[2023-12-25 17:16:30,128 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:16:30,139 INFO  L225             Difference]: With dead ends: 22205
[2023-12-25 17:16:30,140 INFO  L226             Difference]: Without dead ends: 14860
[2023-12-25 17:16:30,145 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5139 GetRequests, 5127 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:16:30,145 INFO  L413           NwaCegarLoop]: 12622 mSDtfsCounter, 33878 mSDsluCounter, 49797 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33878 SdHoareTripleChecker+Valid, 62419 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:16:30,145 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33878 Valid, 62419 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:16:30,152 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14860 states.
[2023-12-25 17:16:30,213 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14860 to 7986.
[2023-12-25 17:16:30,219 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7986 states, 7985 states have (on average 1.6578584846587352) internal successors, (13238), 7985 states have internal predecessors, (13238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:30,225 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7986 states to 7986 states and 13238 transitions.
[2023-12-25 17:16:30,225 INFO  L78                 Accepts]: Start accepts. Automaton has 7986 states and 13238 transitions. Word has length 5130
[2023-12-25 17:16:30,227 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:16:30,227 INFO  L495      AbstractCegarLoop]: Abstraction has 7986 states and 13238 transitions.
[2023-12-25 17:16:30,227 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 694.4285714285714) internal successors, (4861), 7 states have internal predecessors, (4861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:30,227 INFO  L276                IsEmpty]: Start isEmpty. Operand 7986 states and 13238 transitions.
[2023-12-25 17:16:30,356 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5132
[2023-12-25 17:16:30,356 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:16:30,357 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:16:30,446 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0
[2023-12-25 17:16:30,558 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,75 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:16:30,558 INFO  L420      AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:16:30,558 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:16:30,559 INFO  L85        PathProgramCache]: Analyzing trace with hash -307379518, now seen corresponding path program 1 times
[2023-12-25 17:16:30,559 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:16:30,559 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268129885]
[2023-12-25 17:16:30,559 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:16:30,559 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:16:30,937 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:16:30,938 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1209196981]
[2023-12-25 17:16:30,939 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:16:30,939 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:16:30,939 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:16:30,940 INFO  L229       MonitoredProcess]: Starting monitored process 76 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:16:30,944 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process
[2023-12-25 17:16:37,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:16:37,998 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30843 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:16:38,061 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:16:38,240 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked.
[2023-12-25 17:16:38,240 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:16:38,240 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:16:38,240 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268129885]
[2023-12-25 17:16:38,240 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:16:38,240 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209196981]
[2023-12-25 17:16:38,240 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209196981] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:16:38,240 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:16:38,241 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:16:38,241 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791824511]
[2023-12-25 17:16:38,241 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:16:38,243 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:16:38,243 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:16:38,245 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:16:38,245 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:16:38,246 INFO  L87              Difference]: Start difference. First operand 7986 states and 13238 transitions. Second operand  has 7 states, 7 states have (on average 695.1428571428571) internal successors, (4866), 7 states have internal predecessors, (4866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:38,594 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:16:38,594 INFO  L93              Difference]: Finished difference Result 22220 states and 36819 transitions.
[2023-12-25 17:16:38,594 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:16:38,595 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 695.1428571428571) internal successors, (4866), 7 states have internal predecessors, (4866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5131
[2023-12-25 17:16:38,599 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:16:38,612 INFO  L225             Difference]: With dead ends: 22220
[2023-12-25 17:16:38,612 INFO  L226             Difference]: Without dead ends: 14864
[2023-12-25 17:16:38,620 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5140 GetRequests, 5128 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:16:38,621 INFO  L413           NwaCegarLoop]: 12612 mSDtfsCounter, 33882 mSDsluCounter, 49767 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33882 SdHoareTripleChecker+Valid, 62379 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:16:38,621 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33882 Valid, 62379 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:16:38,629 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14864 states.
[2023-12-25 17:16:38,691 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14864 to 7991.
[2023-12-25 17:16:38,696 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7991 states, 7990 states have (on average 1.6576971214017522) internal successors, (13245), 7990 states have internal predecessors, (13245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:38,702 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7991 states to 7991 states and 13245 transitions.
[2023-12-25 17:16:38,702 INFO  L78                 Accepts]: Start accepts. Automaton has 7991 states and 13245 transitions. Word has length 5131
[2023-12-25 17:16:38,704 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:16:38,704 INFO  L495      AbstractCegarLoop]: Abstraction has 7991 states and 13245 transitions.
[2023-12-25 17:16:38,705 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 695.1428571428571) internal successors, (4866), 7 states have internal predecessors, (4866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:38,705 INFO  L276                IsEmpty]: Start isEmpty. Operand 7991 states and 13245 transitions.
[2023-12-25 17:16:38,939 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5133
[2023-12-25 17:16:38,939 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:16:38,940 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:16:39,029 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0
[2023-12-25 17:16:39,141 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77
[2023-12-25 17:16:39,141 INFO  L420      AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:16:39,141 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:16:39,142 INFO  L85        PathProgramCache]: Analyzing trace with hash 1448127756, now seen corresponding path program 1 times
[2023-12-25 17:16:39,142 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:16:39,142 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929878278]
[2023-12-25 17:16:39,142 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:16:39,143 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:16:39,511 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:16:39,512 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [5772951]
[2023-12-25 17:16:39,513 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:16:39,513 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:16:39,513 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:16:39,513 INFO  L229       MonitoredProcess]: Starting monitored process 77 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:16:39,514 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process
[2023-12-25 17:16:46,333 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:16:46,525 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30846 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:16:46,582 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:16:46,764 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked.
[2023-12-25 17:16:46,765 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:16:46,765 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:16:46,765 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929878278]
[2023-12-25 17:16:46,765 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:16:46,765 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5772951]
[2023-12-25 17:16:46,765 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [5772951] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:16:46,765 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:16:46,765 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:16:46,766 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788514586]
[2023-12-25 17:16:46,766 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:16:46,768 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:16:46,768 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:16:46,770 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:16:46,770 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:16:46,771 INFO  L87              Difference]: Start difference. First operand 7991 states and 13245 transitions. Second operand  has 7 states, 7 states have (on average 695.8571428571429) internal successors, (4871), 7 states have internal predecessors, (4871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:47,116 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:16:47,117 INFO  L93              Difference]: Finished difference Result 22235 states and 36840 transitions.
[2023-12-25 17:16:47,117 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:16:47,118 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 695.8571428571429) internal successors, (4871), 7 states have internal predecessors, (4871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5132
[2023-12-25 17:16:47,121 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:16:47,136 INFO  L225             Difference]: With dead ends: 22235
[2023-12-25 17:16:47,136 INFO  L226             Difference]: Without dead ends: 14868
[2023-12-25 17:16:47,144 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5141 GetRequests, 5129 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:16:47,145 INFO  L413           NwaCegarLoop]: 12602 mSDtfsCounter, 33886 mSDsluCounter, 49737 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33886 SdHoareTripleChecker+Valid, 62339 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:16:47,145 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33886 Valid, 62339 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:16:47,159 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14868 states.
[2023-12-25 17:16:47,231 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14868 to 7996.
[2023-12-25 17:16:47,237 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7996 states, 7995 states have (on average 1.6575359599749844) internal successors, (13252), 7995 states have internal predecessors, (13252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:47,243 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7996 states to 7996 states and 13252 transitions.
[2023-12-25 17:16:47,243 INFO  L78                 Accepts]: Start accepts. Automaton has 7996 states and 13252 transitions. Word has length 5132
[2023-12-25 17:16:47,245 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:16:47,245 INFO  L495      AbstractCegarLoop]: Abstraction has 7996 states and 13252 transitions.
[2023-12-25 17:16:47,246 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 695.8571428571429) internal successors, (4871), 7 states have internal predecessors, (4871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:47,246 INFO  L276                IsEmpty]: Start isEmpty. Operand 7996 states and 13252 transitions.
[2023-12-25 17:16:47,371 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5134
[2023-12-25 17:16:47,372 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:16:47,373 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:16:47,462 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0
[2023-12-25 17:16:47,573 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78
[2023-12-25 17:16:47,574 INFO  L420      AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:16:47,574 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:16:47,574 INFO  L85        PathProgramCache]: Analyzing trace with hash 2118430776, now seen corresponding path program 1 times
[2023-12-25 17:16:47,574 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:16:47,574 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543566816]
[2023-12-25 17:16:47,575 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:16:47,575 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:16:48,017 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:16:48,017 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1590182661]
[2023-12-25 17:16:48,018 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:16:48,018 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:16:48,018 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:16:48,019 INFO  L229       MonitoredProcess]: Starting monitored process 78 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:16:48,019 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process
[2023-12-25 17:16:54,661 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:16:54,855 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30850 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:16:54,915 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:16:55,102 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked.
[2023-12-25 17:16:55,102 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:16:55,102 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:16:55,102 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543566816]
[2023-12-25 17:16:55,102 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:16:55,102 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590182661]
[2023-12-25 17:16:55,103 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590182661] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:16:55,103 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:16:55,103 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:16:55,103 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113962366]
[2023-12-25 17:16:55,103 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:16:55,106 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:16:55,106 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:16:55,107 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:16:55,107 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:16:55,108 INFO  L87              Difference]: Start difference. First operand 7996 states and 13252 transitions. Second operand  has 7 states, 7 states have (on average 696.5714285714286) internal successors, (4876), 7 states have internal predecessors, (4876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:55,556 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:16:55,556 INFO  L93              Difference]: Finished difference Result 22250 states and 36861 transitions.
[2023-12-25 17:16:55,557 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:16:55,558 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 696.5714285714286) internal successors, (4876), 7 states have internal predecessors, (4876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5133
[2023-12-25 17:16:55,561 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:16:55,572 INFO  L225             Difference]: With dead ends: 22250
[2023-12-25 17:16:55,573 INFO  L226             Difference]: Without dead ends: 14872
[2023-12-25 17:16:55,580 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5142 GetRequests, 5130 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:16:55,580 INFO  L413           NwaCegarLoop]: 12592 mSDtfsCounter, 33890 mSDsluCounter, 49707 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33890 SdHoareTripleChecker+Valid, 62299 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-25 17:16:55,580 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33890 Valid, 62299 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-25 17:16:55,588 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14872 states.
[2023-12-25 17:16:55,655 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14872 to 8001.
[2023-12-25 17:16:55,660 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8001 states, 8000 states have (on average 1.657375) internal successors, (13259), 8000 states have internal predecessors, (13259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:55,666 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8001 states to 8001 states and 13259 transitions.
[2023-12-25 17:16:55,667 INFO  L78                 Accepts]: Start accepts. Automaton has 8001 states and 13259 transitions. Word has length 5133
[2023-12-25 17:16:55,668 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:16:55,668 INFO  L495      AbstractCegarLoop]: Abstraction has 8001 states and 13259 transitions.
[2023-12-25 17:16:55,669 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 696.5714285714286) internal successors, (4876), 7 states have internal predecessors, (4876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:16:55,669 INFO  L276                IsEmpty]: Start isEmpty. Operand 8001 states and 13259 transitions.
[2023-12-25 17:16:55,796 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5135
[2023-12-25 17:16:55,797 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:16:55,798 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:16:55,890 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0
[2023-12-25 17:16:55,998 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,78 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:16:55,999 INFO  L420      AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:16:55,999 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:16:55,999 INFO  L85        PathProgramCache]: Analyzing trace with hash 154887578, now seen corresponding path program 1 times
[2023-12-25 17:16:55,999 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:16:55,999 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063418448]
[2023-12-25 17:16:56,000 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:16:56,000 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:16:56,373 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:16:56,373 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [268676618]
[2023-12-25 17:16:56,374 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:16:56,374 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:16:56,374 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:16:56,375 INFO  L229       MonitoredProcess]: Starting monitored process 79 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:16:56,376 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process
[2023-12-25 17:17:03,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:17:03,310 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30853 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:17:03,364 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:17:03,541 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked.
[2023-12-25 17:17:03,541 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:17:03,541 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:17:03,541 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063418448]
[2023-12-25 17:17:03,541 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:17:03,541 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268676618]
[2023-12-25 17:17:03,541 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [268676618] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:17:03,541 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:17:03,542 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:17:03,542 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227428030]
[2023-12-25 17:17:03,542 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:17:03,544 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:17:03,544 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:17:03,546 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:17:03,546 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:17:03,546 INFO  L87              Difference]: Start difference. First operand 8001 states and 13259 transitions. Second operand  has 7 states, 7 states have (on average 697.2857142857143) internal successors, (4881), 7 states have internal predecessors, (4881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:03,884 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:17:03,885 INFO  L93              Difference]: Finished difference Result 22265 states and 36882 transitions.
[2023-12-25 17:17:03,885 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:17:03,886 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 697.2857142857143) internal successors, (4881), 7 states have internal predecessors, (4881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5134
[2023-12-25 17:17:03,889 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:17:03,904 INFO  L225             Difference]: With dead ends: 22265
[2023-12-25 17:17:03,904 INFO  L226             Difference]: Without dead ends: 14876
[2023-12-25 17:17:03,912 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5143 GetRequests, 5131 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:17:03,912 INFO  L413           NwaCegarLoop]: 12582 mSDtfsCounter, 33894 mSDsluCounter, 49677 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33894 SdHoareTripleChecker+Valid, 62259 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:17:03,912 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33894 Valid, 62259 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:17:03,920 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14876 states.
[2023-12-25 17:17:03,982 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14876 to 8006.
[2023-12-25 17:17:03,987 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8006 states, 8005 states have (on average 1.657214241099313) internal successors, (13266), 8005 states have internal predecessors, (13266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:03,993 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8006 states to 8006 states and 13266 transitions.
[2023-12-25 17:17:03,994 INFO  L78                 Accepts]: Start accepts. Automaton has 8006 states and 13266 transitions. Word has length 5134
[2023-12-25 17:17:03,995 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:17:03,995 INFO  L495      AbstractCegarLoop]: Abstraction has 8006 states and 13266 transitions.
[2023-12-25 17:17:03,996 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 697.2857142857143) internal successors, (4881), 7 states have internal predecessors, (4881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:03,996 INFO  L276                IsEmpty]: Start isEmpty. Operand 8006 states and 13266 transitions.
[2023-12-25 17:17:04,237 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5136
[2023-12-25 17:17:04,238 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:17:04,239 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:17:04,326 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0
[2023-12-25 17:17:04,440 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,79 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:17:04,440 INFO  L420      AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:17:04,440 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:17:04,441 INFO  L85        PathProgramCache]: Analyzing trace with hash 282441006, now seen corresponding path program 1 times
[2023-12-25 17:17:04,441 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:17:04,441 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688117703]
[2023-12-25 17:17:04,441 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:17:04,441 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:17:04,801 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:17:04,801 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2062477308]
[2023-12-25 17:17:04,802 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:17:04,802 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:17:04,802 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:17:04,803 INFO  L229       MonitoredProcess]: Starting monitored process 80 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:17:04,804 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process
[2023-12-25 17:17:11,573 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:17:11,748 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30857 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:17:11,798 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:17:11,975 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked.
[2023-12-25 17:17:11,975 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:17:11,975 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:17:11,975 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688117703]
[2023-12-25 17:17:11,975 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:17:11,976 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062477308]
[2023-12-25 17:17:11,976 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062477308] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:17:11,976 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:17:11,976 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:17:11,976 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493658429]
[2023-12-25 17:17:11,976 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:17:11,978 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:17:11,978 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:17:11,980 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:17:11,980 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:17:11,981 INFO  L87              Difference]: Start difference. First operand 8006 states and 13266 transitions. Second operand  has 7 states, 7 states have (on average 698.0) internal successors, (4886), 7 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:12,318 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:17:12,318 INFO  L93              Difference]: Finished difference Result 22280 states and 36903 transitions.
[2023-12-25 17:17:12,319 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:17:12,320 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 698.0) internal successors, (4886), 7 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5135
[2023-12-25 17:17:12,323 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:17:12,335 INFO  L225             Difference]: With dead ends: 22280
[2023-12-25 17:17:12,335 INFO  L226             Difference]: Without dead ends: 14880
[2023-12-25 17:17:12,342 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5144 GetRequests, 5132 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:17:12,342 INFO  L413           NwaCegarLoop]: 12572 mSDtfsCounter, 33898 mSDsluCounter, 49647 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33898 SdHoareTripleChecker+Valid, 62219 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:17:12,342 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33898 Valid, 62219 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:17:12,351 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14880 states.
[2023-12-25 17:17:12,412 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14880 to 8011.
[2023-12-25 17:17:12,417 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8011 states, 8010 states have (on average 1.6570536828963796) internal successors, (13273), 8010 states have internal predecessors, (13273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:12,423 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8011 states to 8011 states and 13273 transitions.
[2023-12-25 17:17:12,423 INFO  L78                 Accepts]: Start accepts. Automaton has 8011 states and 13273 transitions. Word has length 5135
[2023-12-25 17:17:12,425 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:17:12,425 INFO  L495      AbstractCegarLoop]: Abstraction has 8011 states and 13273 transitions.
[2023-12-25 17:17:12,426 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 698.0) internal successors, (4886), 7 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:12,426 INFO  L276                IsEmpty]: Start isEmpty. Operand 8011 states and 13273 transitions.
[2023-12-25 17:17:12,552 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5137
[2023-12-25 17:17:12,552 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:17:12,554 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:17:12,648 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Forceful destruction successful, exit code 0
[2023-12-25 17:17:12,754 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable81
[2023-12-25 17:17:12,754 INFO  L420      AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:17:12,754 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:17:12,755 INFO  L85        PathProgramCache]: Analyzing trace with hash -18501208, now seen corresponding path program 1 times
[2023-12-25 17:17:12,755 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:17:12,755 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721419999]
[2023-12-25 17:17:12,755 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:17:12,755 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:17:13,200 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:17:13,200 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [456287166]
[2023-12-25 17:17:13,201 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:17:13,201 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:17:13,201 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:17:13,202 INFO  L229       MonitoredProcess]: Starting monitored process 81 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:17:13,203 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process
[2023-12-25 17:17:19,780 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:17:19,972 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30860 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:17:20,031 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:17:20,217 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-25 17:17:20,217 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:17:20,217 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:17:20,217 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721419999]
[2023-12-25 17:17:20,217 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:17:20,217 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456287166]
[2023-12-25 17:17:20,217 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [456287166] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:17:20,217 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:17:20,218 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:17:20,218 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321543774]
[2023-12-25 17:17:20,218 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:17:20,220 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:17:20,220 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:17:20,222 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:17:20,222 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:17:20,223 INFO  L87              Difference]: Start difference. First operand 8011 states and 13273 transitions. Second operand  has 7 states, 7 states have (on average 698.7142857142857) internal successors, (4891), 7 states have internal predecessors, (4891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:20,654 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:17:20,655 INFO  L93              Difference]: Finished difference Result 22295 states and 36924 transitions.
[2023-12-25 17:17:20,655 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2023-12-25 17:17:20,656 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 698.7142857142857) internal successors, (4891), 7 states have internal predecessors, (4891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5136
[2023-12-25 17:17:20,659 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:17:20,672 INFO  L225             Difference]: With dead ends: 22295
[2023-12-25 17:17:20,672 INFO  L226             Difference]: Without dead ends: 14884
[2023-12-25 17:17:20,679 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5145 GetRequests, 5133 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:17:20,679 INFO  L413           NwaCegarLoop]: 12562 mSDtfsCounter, 33902 mSDsluCounter, 49617 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33902 SdHoareTripleChecker+Valid, 62179 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-25 17:17:20,679 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33902 Valid, 62179 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-25 17:17:20,687 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14884 states.
[2023-12-25 17:17:20,753 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14884 to 8016.
[2023-12-25 17:17:20,759 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8016 states, 8015 states have (on average 1.6568933250155957) internal successors, (13280), 8015 states have internal predecessors, (13280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:20,765 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8016 states to 8016 states and 13280 transitions.
[2023-12-25 17:17:20,765 INFO  L78                 Accepts]: Start accepts. Automaton has 8016 states and 13280 transitions. Word has length 5136
[2023-12-25 17:17:20,767 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:17:20,767 INFO  L495      AbstractCegarLoop]: Abstraction has 8016 states and 13280 transitions.
[2023-12-25 17:17:20,767 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 698.7142857142857) internal successors, (4891), 7 states have internal predecessors, (4891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:20,768 INFO  L276                IsEmpty]: Start isEmpty. Operand 8016 states and 13280 transitions.
[2023-12-25 17:17:20,896 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5138
[2023-12-25 17:17:20,896 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:17:20,898 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:17:20,993 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0
[2023-12-25 17:17:21,098 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,81 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:17:21,098 INFO  L420      AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:17:21,099 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:17:21,099 INFO  L85        PathProgramCache]: Analyzing trace with hash -1642548828, now seen corresponding path program 1 times
[2023-12-25 17:17:21,099 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:17:21,100 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008727026]
[2023-12-25 17:17:21,100 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:17:21,100 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:17:21,492 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:17:21,493 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [335599858]
[2023-12-25 17:17:21,494 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:17:21,494 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:17:21,494 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:17:21,495 INFO  L229       MonitoredProcess]: Starting monitored process 82 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:17:21,495 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process
[2023-12-25 17:17:28,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:17:28,425 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30864 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 17:17:28,488 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:17:28,676 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked.
[2023-12-25 17:17:28,677 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:17:28,677 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:17:28,677 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008727026]
[2023-12-25 17:17:28,677 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:17:28,677 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335599858]
[2023-12-25 17:17:28,677 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [335599858] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:17:28,677 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:17:28,677 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:17:28,677 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177768830]
[2023-12-25 17:17:28,678 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:17:28,680 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:17:28,680 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:17:28,682 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:17:28,682 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:17:28,682 INFO  L87              Difference]: Start difference. First operand 8016 states and 13280 transitions. Second operand  has 7 states, 7 states have (on average 699.1428571428571) internal successors, (4894), 7 states have internal predecessors, (4894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:29,007 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:17:29,007 INFO  L93              Difference]: Finished difference Result 22303 states and 36934 transitions.
[2023-12-25 17:17:29,007 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-25 17:17:29,009 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 699.1428571428571) internal successors, (4894), 7 states have internal predecessors, (4894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5137
[2023-12-25 17:17:29,011 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:17:29,023 INFO  L225             Difference]: With dead ends: 22303
[2023-12-25 17:17:29,023 INFO  L226             Difference]: Without dead ends: 14881
[2023-12-25 17:17:29,029 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5145 GetRequests, 5134 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156
[2023-12-25 17:17:29,030 INFO  L413           NwaCegarLoop]: 12553 mSDtfsCounter, 33898 mSDsluCounter, 49588 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33898 SdHoareTripleChecker+Valid, 62141 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:17:29,030 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33898 Valid, 62141 Invalid, 47 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:17:29,037 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14881 states.
[2023-12-25 17:17:29,096 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14881 to 8018.
[2023-12-25 17:17:29,101 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8018 states, 8017 states have (on average 1.6567294499189222) internal successors, (13282), 8017 states have internal predecessors, (13282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:29,266 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8018 states to 8018 states and 13282 transitions.
[2023-12-25 17:17:29,266 INFO  L78                 Accepts]: Start accepts. Automaton has 8018 states and 13282 transitions. Word has length 5137
[2023-12-25 17:17:29,268 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:17:29,268 INFO  L495      AbstractCegarLoop]: Abstraction has 8018 states and 13282 transitions.
[2023-12-25 17:17:29,269 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 699.1428571428571) internal successors, (4894), 7 states have internal predecessors, (4894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:29,269 INFO  L276                IsEmpty]: Start isEmpty. Operand 8018 states and 13282 transitions.
[2023-12-25 17:17:29,395 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5139
[2023-12-25 17:17:29,396 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:17:29,397 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:17:29,492 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0
[2023-12-25 17:17:29,597 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,82 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:17:29,597 INFO  L420      AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:17:29,598 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:17:29,598 INFO  L85        PathProgramCache]: Analyzing trace with hash -1776423664, now seen corresponding path program 1 times
[2023-12-25 17:17:29,598 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:17:29,598 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468148276]
[2023-12-25 17:17:29,599 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:17:29,599 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:17:29,956 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:17:29,957 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [814920585]
[2023-12-25 17:17:29,958 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:17:29,958 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:17:29,958 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:17:29,959 INFO  L229       MonitoredProcess]: Starting monitored process 83 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:17:29,959 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process
[2023-12-25 17:17:36,733 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:17:36,926 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30867 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-25 17:17:36,986 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:17:37,185 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked.
[2023-12-25 17:17:37,185 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:17:37,185 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:17:37,185 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468148276]
[2023-12-25 17:17:37,185 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:17:37,185 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814920585]
[2023-12-25 17:17:37,185 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [814920585] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:17:37,185 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:17:37,186 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-25 17:17:37,186 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550721210]
[2023-12-25 17:17:37,186 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:17:37,188 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-25 17:17:37,189 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:17:37,191 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-25 17:17:37,191 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2023-12-25 17:17:37,191 INFO  L87              Difference]: Start difference. First operand 8018 states and 13282 transitions. Second operand  has 8 states, 8 states have (on average 611.625) internal successors, (4893), 8 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:37,584 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:17:37,585 INFO  L93              Difference]: Finished difference Result 22307 states and 36936 transitions.
[2023-12-25 17:17:37,585 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-25 17:17:37,586 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 611.625) internal successors, (4893), 8 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5138
[2023-12-25 17:17:37,589 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:17:37,602 INFO  L225             Difference]: With dead ends: 22307
[2023-12-25 17:17:37,602 INFO  L226             Difference]: Without dead ends: 14889
[2023-12-25 17:17:37,610 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5146 GetRequests, 5134 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:17:37,610 INFO  L413           NwaCegarLoop]: 12563 mSDtfsCounter, 33894 mSDsluCounter, 62172 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33894 SdHoareTripleChecker+Valid, 74735 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:17:37,610 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33894 Valid, 74735 Invalid, 63 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:17:37,619 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14889 states.
[2023-12-25 17:17:37,689 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14889 to 8018.
[2023-12-25 17:17:37,696 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8018 states, 8017 states have (on average 1.6567294499189222) internal successors, (13282), 8017 states have internal predecessors, (13282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:37,702 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8018 states to 8018 states and 13282 transitions.
[2023-12-25 17:17:37,702 INFO  L78                 Accepts]: Start accepts. Automaton has 8018 states and 13282 transitions. Word has length 5138
[2023-12-25 17:17:37,704 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:17:37,704 INFO  L495      AbstractCegarLoop]: Abstraction has 8018 states and 13282 transitions.
[2023-12-25 17:17:37,705 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 611.625) internal successors, (4893), 8 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:37,705 INFO  L276                IsEmpty]: Start isEmpty. Operand 8018 states and 13282 transitions.
[2023-12-25 17:17:37,936 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5140
[2023-12-25 17:17:37,936 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:17:37,938 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:17:38,035 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0
[2023-12-25 17:17:38,138 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84
[2023-12-25 17:17:38,138 INFO  L420      AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:17:38,139 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:17:38,139 INFO  L85        PathProgramCache]: Analyzing trace with hash 776745120, now seen corresponding path program 1 times
[2023-12-25 17:17:38,139 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:17:38,139 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160348307]
[2023-12-25 17:17:38,140 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:17:38,140 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:17:38,524 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:17:38,525 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2146318352]
[2023-12-25 17:17:38,526 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:17:38,526 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:17:38,526 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:17:38,527 INFO  L229       MonitoredProcess]: Starting monitored process 84 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:17:38,527 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process
[2023-12-25 17:17:45,318 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:17:45,499 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30870 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 17:17:45,559 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:17:45,737 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked.
[2023-12-25 17:17:45,738 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:17:45,738 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:17:45,738 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160348307]
[2023-12-25 17:17:45,738 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:17:45,738 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146318352]
[2023-12-25 17:17:45,738 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146318352] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:17:45,738 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:17:45,738 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:17:45,739 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61977039]
[2023-12-25 17:17:45,739 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:17:45,741 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:17:45,741 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:17:45,743 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:17:45,743 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:17:45,744 INFO  L87              Difference]: Start difference. First operand 8018 states and 13282 transitions. Second operand  has 7 states, 7 states have (on average 698.8571428571429) internal successors, (4892), 7 states have internal predecessors, (4892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:46,088 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:17:46,088 INFO  L93              Difference]: Finished difference Result 22307 states and 36936 transitions.
[2023-12-25 17:17:46,088 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-25 17:17:46,089 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 698.8571428571429) internal successors, (4892), 7 states have internal predecessors, (4892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5139
[2023-12-25 17:17:46,093 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:17:46,105 INFO  L225             Difference]: With dead ends: 22307
[2023-12-25 17:17:46,105 INFO  L226             Difference]: Without dead ends: 14895
[2023-12-25 17:17:46,112 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5147 GetRequests, 5136 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156
[2023-12-25 17:17:46,113 INFO  L413           NwaCegarLoop]: 12573 mSDtfsCounter, 33890 mSDsluCounter, 49648 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33890 SdHoareTripleChecker+Valid, 62221 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:17:46,113 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33890 Valid, 62221 Invalid, 47 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:17:46,121 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14895 states.
[2023-12-25 17:17:46,186 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14895 to 8018.
[2023-12-25 17:17:46,192 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8018 states, 8017 states have (on average 1.6567294499189222) internal successors, (13282), 8017 states have internal predecessors, (13282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:46,199 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8018 states to 8018 states and 13282 transitions.
[2023-12-25 17:17:46,199 INFO  L78                 Accepts]: Start accepts. Automaton has 8018 states and 13282 transitions. Word has length 5139
[2023-12-25 17:17:46,201 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:17:46,201 INFO  L495      AbstractCegarLoop]: Abstraction has 8018 states and 13282 transitions.
[2023-12-25 17:17:46,202 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 698.8571428571429) internal successors, (4892), 7 states have internal predecessors, (4892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:46,202 INFO  L276                IsEmpty]: Start isEmpty. Operand 8018 states and 13282 transitions.
[2023-12-25 17:17:46,411 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5141
[2023-12-25 17:17:46,412 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:17:46,413 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:17:46,503 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0
[2023-12-25 17:17:46,613 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,84 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:17:46,614 INFO  L420      AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:17:46,614 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:17:46,614 INFO  L85        PathProgramCache]: Analyzing trace with hash -1918056240, now seen corresponding path program 1 times
[2023-12-25 17:17:46,614 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:17:46,614 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972073018]
[2023-12-25 17:17:46,615 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:17:46,615 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:17:46,992 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:17:46,992 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1924849520]
[2023-12-25 17:17:46,993 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:17:46,993 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:17:46,994 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:17:46,994 INFO  L229       MonitoredProcess]: Starting monitored process 85 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:17:46,995 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process
[2023-12-25 17:17:53,787 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:17:53,986 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30873 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-25 17:17:54,043 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:17:54,229 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked.
[2023-12-25 17:17:54,229 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:17:54,229 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:17:54,229 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972073018]
[2023-12-25 17:17:54,229 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:17:54,229 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924849520]
[2023-12-25 17:17:54,229 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924849520] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:17:54,229 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:17:54,230 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-25 17:17:54,230 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320178520]
[2023-12-25 17:17:54,230 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:17:54,232 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-25 17:17:54,232 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:17:54,234 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-25 17:17:54,234 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2023-12-25 17:17:54,235 INFO  L87              Difference]: Start difference. First operand 8018 states and 13282 transitions. Second operand  has 8 states, 8 states have (on average 611.375) internal successors, (4891), 8 states have internal predecessors, (4891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:54,602 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:17:54,602 INFO  L93              Difference]: Finished difference Result 22307 states and 36936 transitions.
[2023-12-25 17:17:54,602 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-25 17:17:54,604 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 611.375) internal successors, (4891), 8 states have internal predecessors, (4891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5140
[2023-12-25 17:17:54,607 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:17:54,619 INFO  L225             Difference]: With dead ends: 22307
[2023-12-25 17:17:54,619 INFO  L226             Difference]: Without dead ends: 14901
[2023-12-25 17:17:54,627 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5148 GetRequests, 5136 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:17:54,628 INFO  L413           NwaCegarLoop]: 12583 mSDtfsCounter, 33886 mSDsluCounter, 61031 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33886 SdHoareTripleChecker+Valid, 73614 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:17:54,628 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33886 Valid, 73614 Invalid, 52 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:17:54,753 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14901 states.
[2023-12-25 17:17:54,815 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14901 to 8018.
[2023-12-25 17:17:54,822 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8018 states, 8017 states have (on average 1.6567294499189222) internal successors, (13282), 8017 states have internal predecessors, (13282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:54,829 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8018 states to 8018 states and 13282 transitions.
[2023-12-25 17:17:54,829 INFO  L78                 Accepts]: Start accepts. Automaton has 8018 states and 13282 transitions. Word has length 5140
[2023-12-25 17:17:54,831 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:17:54,831 INFO  L495      AbstractCegarLoop]: Abstraction has 8018 states and 13282 transitions.
[2023-12-25 17:17:54,832 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 611.375) internal successors, (4891), 8 states have internal predecessors, (4891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:17:54,832 INFO  L276                IsEmpty]: Start isEmpty. Operand 8018 states and 13282 transitions.
[2023-12-25 17:17:54,959 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5142
[2023-12-25 17:17:54,959 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:17:54,960 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:17:55,056 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0
[2023-12-25 17:17:55,160 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,85 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:17:55,161 INFO  L420      AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:17:55,161 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:17:55,161 INFO  L85        PathProgramCache]: Analyzing trace with hash -1064324324, now seen corresponding path program 1 times
[2023-12-25 17:17:55,161 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:17:55,162 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389233633]
[2023-12-25 17:17:55,162 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:17:55,162 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:17:55,537 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:17:55,537 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2028060318]
[2023-12-25 17:17:55,538 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:17:55,538 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:17:55,538 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:17:55,540 INFO  L229       MonitoredProcess]: Starting monitored process 86 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:17:55,541 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process
[2023-12-25 17:18:02,319 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:18:02,518 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30876 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 17:18:02,578 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:18:02,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked.
[2023-12-25 17:18:02,765 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:18:02,765 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:18:02,765 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389233633]
[2023-12-25 17:18:02,765 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:18:02,765 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028060318]
[2023-12-25 17:18:02,765 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028060318] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:18:02,765 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:18:02,766 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:18:02,766 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705121754]
[2023-12-25 17:18:02,766 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:18:02,768 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:18:02,768 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:18:02,770 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:18:02,770 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:18:02,771 INFO  L87              Difference]: Start difference. First operand 8018 states and 13282 transitions. Second operand  has 7 states, 7 states have (on average 698.5714285714286) internal successors, (4890), 7 states have internal predecessors, (4890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:03,225 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:18:03,225 INFO  L93              Difference]: Finished difference Result 22307 states and 36936 transitions.
[2023-12-25 17:18:03,225 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-25 17:18:03,226 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 698.5714285714286) internal successors, (4890), 7 states have internal predecessors, (4890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5141
[2023-12-25 17:18:03,229 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:18:03,239 INFO  L225             Difference]: With dead ends: 22307
[2023-12-25 17:18:03,240 INFO  L226             Difference]: Without dead ends: 14907
[2023-12-25 17:18:03,245 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5149 GetRequests, 5138 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156
[2023-12-25 17:18:03,246 INFO  L413           NwaCegarLoop]: 12593 mSDtfsCounter, 33882 mSDsluCounter, 49708 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33882 SdHoareTripleChecker+Valid, 62301 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:18:03,246 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33882 Valid, 62301 Invalid, 47 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:18:03,254 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14907 states.
[2023-12-25 17:18:03,318 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14907 to 8018.
[2023-12-25 17:18:03,324 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8018 states, 8017 states have (on average 1.6567294499189222) internal successors, (13282), 8017 states have internal predecessors, (13282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:03,331 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8018 states to 8018 states and 13282 transitions.
[2023-12-25 17:18:03,331 INFO  L78                 Accepts]: Start accepts. Automaton has 8018 states and 13282 transitions. Word has length 5141
[2023-12-25 17:18:03,333 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:18:03,333 INFO  L495      AbstractCegarLoop]: Abstraction has 8018 states and 13282 transitions.
[2023-12-25 17:18:03,334 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 698.5714285714286) internal successors, (4890), 7 states have internal predecessors, (4890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:03,334 INFO  L276                IsEmpty]: Start isEmpty. Operand 8018 states and 13282 transitions.
[2023-12-25 17:18:03,460 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5143
[2023-12-25 17:18:03,461 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:18:03,462 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:18:03,552 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0
[2023-12-25 17:18:03,662 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87
[2023-12-25 17:18:03,663 INFO  L420      AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:18:03,663 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:18:03,663 INFO  L85        PathProgramCache]: Analyzing trace with hash -1154110448, now seen corresponding path program 1 times
[2023-12-25 17:18:03,663 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:18:03,663 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59144241]
[2023-12-25 17:18:03,664 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:18:03,664 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:18:04,046 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:18:04,046 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1739895869]
[2023-12-25 17:18:04,047 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:18:04,047 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:18:04,047 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:18:04,048 INFO  L229       MonitoredProcess]: Starting monitored process 87 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:18:04,049 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process
[2023-12-25 17:18:10,901 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:18:11,131 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30879 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:18:11,191 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:18:11,527 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked.
[2023-12-25 17:18:11,527 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:18:11,527 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:18:11,527 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59144241]
[2023-12-25 17:18:11,527 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:18:11,528 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739895869]
[2023-12-25 17:18:11,528 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739895869] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:18:11,528 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:18:11,528 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-25 17:18:11,528 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449234482]
[2023-12-25 17:18:11,528 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:18:11,531 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-25 17:18:11,531 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:18:11,533 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-25 17:18:11,533 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2023-12-25 17:18:11,533 INFO  L87              Difference]: Start difference. First operand 8018 states and 13282 transitions. Second operand  has 8 states, 8 states have (on average 611.125) internal successors, (4889), 8 states have internal predecessors, (4889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:11,941 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:18:11,941 INFO  L93              Difference]: Finished difference Result 22307 states and 36936 transitions.
[2023-12-25 17:18:11,941 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-25 17:18:11,943 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 611.125) internal successors, (4889), 8 states have internal predecessors, (4889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5142
[2023-12-25 17:18:11,946 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:18:11,959 INFO  L225             Difference]: With dead ends: 22307
[2023-12-25 17:18:11,960 INFO  L226             Difference]: Without dead ends: 14913
[2023-12-25 17:18:11,968 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5150 GetRequests, 5138 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:18:11,968 INFO  L413           NwaCegarLoop]: 12603 mSDtfsCounter, 33878 mSDsluCounter, 62332 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33878 SdHoareTripleChecker+Valid, 74935 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:18:11,968 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33878 Valid, 74935 Invalid, 63 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:18:11,977 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14913 states.
[2023-12-25 17:18:12,044 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14913 to 8018.
[2023-12-25 17:18:12,050 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8018 states, 8017 states have (on average 1.6567294499189222) internal successors, (13282), 8017 states have internal predecessors, (13282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:12,057 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8018 states to 8018 states and 13282 transitions.
[2023-12-25 17:18:12,057 INFO  L78                 Accepts]: Start accepts. Automaton has 8018 states and 13282 transitions. Word has length 5142
[2023-12-25 17:18:12,059 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:18:12,059 INFO  L495      AbstractCegarLoop]: Abstraction has 8018 states and 13282 transitions.
[2023-12-25 17:18:12,060 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 611.125) internal successors, (4889), 8 states have internal predecessors, (4889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:12,060 INFO  L276                IsEmpty]: Start isEmpty. Operand 8018 states and 13282 transitions.
[2023-12-25 17:18:12,187 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5144
[2023-12-25 17:18:12,187 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:18:12,188 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:18:12,288 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0
[2023-12-25 17:18:12,389 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,87 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:18:12,389 INFO  L420      AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:18:12,389 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:18:12,390 INFO  L85        PathProgramCache]: Analyzing trace with hash -174229224, now seen corresponding path program 1 times
[2023-12-25 17:18:12,390 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:18:12,390 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133620542]
[2023-12-25 17:18:12,390 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:18:12,390 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:18:12,837 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:18:12,838 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1363530203]
[2023-12-25 17:18:12,839 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:18:12,839 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:18:12,839 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:18:12,840 INFO  L229       MonitoredProcess]: Starting monitored process 88 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:18:12,840 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process
[2023-12-25 17:18:19,726 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:18:19,922 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30882 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 17:18:19,983 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:18:20,165 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked.
[2023-12-25 17:18:20,165 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:18:20,165 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:18:20,165 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133620542]
[2023-12-25 17:18:20,166 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:18:20,166 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363530203]
[2023-12-25 17:18:20,166 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363530203] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:18:20,166 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:18:20,166 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:18:20,166 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140517946]
[2023-12-25 17:18:20,166 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:18:20,169 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:18:20,169 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:18:20,170 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:18:20,171 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:18:20,171 INFO  L87              Difference]: Start difference. First operand 8018 states and 13282 transitions. Second operand  has 7 states, 7 states have (on average 698.2857142857143) internal successors, (4888), 7 states have internal predecessors, (4888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:20,623 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:18:20,623 INFO  L93              Difference]: Finished difference Result 22307 states and 36936 transitions.
[2023-12-25 17:18:20,623 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-25 17:18:20,624 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 698.2857142857143) internal successors, (4888), 7 states have internal predecessors, (4888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5143
[2023-12-25 17:18:20,627 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:18:20,637 INFO  L225             Difference]: With dead ends: 22307
[2023-12-25 17:18:20,637 INFO  L226             Difference]: Without dead ends: 14919
[2023-12-25 17:18:20,641 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5151 GetRequests, 5140 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156
[2023-12-25 17:18:20,641 INFO  L413           NwaCegarLoop]: 12613 mSDtfsCounter, 33874 mSDsluCounter, 49768 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33874 SdHoareTripleChecker+Valid, 62381 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:18:20,641 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33874 Valid, 62381 Invalid, 47 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:18:20,648 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14919 states.
[2023-12-25 17:18:20,708 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14919 to 8018.
[2023-12-25 17:18:20,714 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8018 states, 8017 states have (on average 1.6567294499189222) internal successors, (13282), 8017 states have internal predecessors, (13282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:20,721 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8018 states to 8018 states and 13282 transitions.
[2023-12-25 17:18:20,721 INFO  L78                 Accepts]: Start accepts. Automaton has 8018 states and 13282 transitions. Word has length 5143
[2023-12-25 17:18:20,723 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:18:20,723 INFO  L495      AbstractCegarLoop]: Abstraction has 8018 states and 13282 transitions.
[2023-12-25 17:18:20,723 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 698.2857142857143) internal successors, (4888), 7 states have internal predecessors, (4888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:20,724 INFO  L276                IsEmpty]: Start isEmpty. Operand 8018 states and 13282 transitions.
[2023-12-25 17:18:20,852 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5145
[2023-12-25 17:18:20,852 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:18:20,853 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:18:20,956 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0
[2023-12-25 17:18:21,054 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,88 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:18:21,054 INFO  L420      AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:18:21,054 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:18:21,055 INFO  L85        PathProgramCache]: Analyzing trace with hash -1938024752, now seen corresponding path program 1 times
[2023-12-25 17:18:21,055 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:18:21,055 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106961444]
[2023-12-25 17:18:21,055 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:18:21,055 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:18:21,524 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:18:21,524 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1146579444]
[2023-12-25 17:18:21,525 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:18:21,525 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:18:21,525 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:18:21,526 INFO  L229       MonitoredProcess]: Starting monitored process 89 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:18:21,527 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process
[2023-12-25 17:18:28,384 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:18:28,591 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30885 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-25 17:18:28,650 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:18:28,839 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked.
[2023-12-25 17:18:28,839 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:18:28,839 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:18:28,839 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106961444]
[2023-12-25 17:18:28,839 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:18:28,839 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146579444]
[2023-12-25 17:18:28,839 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146579444] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:18:28,839 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:18:28,840 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-25 17:18:28,840 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160602671]
[2023-12-25 17:18:28,840 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:18:28,842 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-25 17:18:28,843 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:18:28,844 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-25 17:18:28,844 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2023-12-25 17:18:28,845 INFO  L87              Difference]: Start difference. First operand 8018 states and 13282 transitions. Second operand  has 8 states, 8 states have (on average 610.875) internal successors, (4887), 8 states have internal predecessors, (4887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:29,264 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:18:29,264 INFO  L93              Difference]: Finished difference Result 22307 states and 36936 transitions.
[2023-12-25 17:18:29,264 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-25 17:18:29,265 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 610.875) internal successors, (4887), 8 states have internal predecessors, (4887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5144
[2023-12-25 17:18:29,269 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:18:29,282 INFO  L225             Difference]: With dead ends: 22307
[2023-12-25 17:18:29,282 INFO  L226             Difference]: Without dead ends: 14925
[2023-12-25 17:18:29,389 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5152 GetRequests, 5140 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:18:29,390 INFO  L413           NwaCegarLoop]: 12623 mSDtfsCounter, 33870 mSDsluCounter, 61163 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33870 SdHoareTripleChecker+Valid, 73786 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:18:29,390 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33870 Valid, 73786 Invalid, 52 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:18:29,396 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14925 states.
[2023-12-25 17:18:29,449 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14925 to 8018.
[2023-12-25 17:18:29,455 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8018 states, 8017 states have (on average 1.6567294499189222) internal successors, (13282), 8017 states have internal predecessors, (13282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:29,462 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8018 states to 8018 states and 13282 transitions.
[2023-12-25 17:18:29,462 INFO  L78                 Accepts]: Start accepts. Automaton has 8018 states and 13282 transitions. Word has length 5144
[2023-12-25 17:18:29,464 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:18:29,465 INFO  L495      AbstractCegarLoop]: Abstraction has 8018 states and 13282 transitions.
[2023-12-25 17:18:29,465 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 610.875) internal successors, (4887), 8 states have internal predecessors, (4887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:29,465 INFO  L276                IsEmpty]: Start isEmpty. Operand 8018 states and 13282 transitions.
[2023-12-25 17:18:29,594 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5146
[2023-12-25 17:18:29,594 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:18:29,595 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:18:29,695 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Forceful destruction successful, exit code 0
[2023-12-25 17:18:29,795 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,89 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:18:29,796 INFO  L420      AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:18:29,796 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:18:29,797 INFO  L85        PathProgramCache]: Analyzing trace with hash -2004368748, now seen corresponding path program 1 times
[2023-12-25 17:18:29,797 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:18:29,797 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368822412]
[2023-12-25 17:18:29,798 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:18:29,798 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:18:30,301 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:18:30,301 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [108771849]
[2023-12-25 17:18:30,303 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:18:30,303 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:18:30,303 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:18:30,304 INFO  L229       MonitoredProcess]: Starting monitored process 90 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:18:30,304 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process
[2023-12-25 17:18:37,155 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:18:37,348 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30888 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-25 17:18:37,405 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:18:37,619 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2023-12-25 17:18:37,619 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:18:37,619 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:18:37,619 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368822412]
[2023-12-25 17:18:37,619 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:18:37,619 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108771849]
[2023-12-25 17:18:37,619 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [108771849] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:18:37,619 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:18:37,620 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-25 17:18:37,620 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645218938]
[2023-12-25 17:18:37,620 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:18:37,623 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-25 17:18:37,623 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:18:37,626 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-25 17:18:37,626 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:18:37,626 INFO  L87              Difference]: Start difference. First operand 8018 states and 13282 transitions. Second operand  has 7 states, 7 states have (on average 698.0) internal successors, (4886), 7 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:38,131 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:18:38,131 INFO  L93              Difference]: Finished difference Result 22307 states and 36936 transitions.
[2023-12-25 17:18:38,131 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-25 17:18:38,132 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 698.0) internal successors, (4886), 7 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5145
[2023-12-25 17:18:38,135 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:18:38,149 INFO  L225             Difference]: With dead ends: 22307
[2023-12-25 17:18:38,150 INFO  L226             Difference]: Without dead ends: 14931
[2023-12-25 17:18:38,155 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5153 GetRequests, 5142 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156
[2023-12-25 17:18:38,155 INFO  L413           NwaCegarLoop]: 12633 mSDtfsCounter, 33866 mSDsluCounter, 49828 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33866 SdHoareTripleChecker+Valid, 62461 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:18:38,156 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33866 Valid, 62461 Invalid, 47 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:18:38,163 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14931 states.
[2023-12-25 17:18:38,229 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14931 to 8018.
[2023-12-25 17:18:38,236 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8018 states, 8017 states have (on average 1.6567294499189222) internal successors, (13282), 8017 states have internal predecessors, (13282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:38,243 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8018 states to 8018 states and 13282 transitions.
[2023-12-25 17:18:38,243 INFO  L78                 Accepts]: Start accepts. Automaton has 8018 states and 13282 transitions. Word has length 5145
[2023-12-25 17:18:38,245 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:18:38,245 INFO  L495      AbstractCegarLoop]: Abstraction has 8018 states and 13282 transitions.
[2023-12-25 17:18:38,245 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 698.0) internal successors, (4886), 7 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:38,245 INFO  L276                IsEmpty]: Start isEmpty. Operand 8018 states and 13282 transitions.
[2023-12-25 17:18:38,374 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5147
[2023-12-25 17:18:38,374 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:18:38,375 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:18:38,469 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0
[2023-12-25 17:18:38,575 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable91
[2023-12-25 17:18:38,576 INFO  L420      AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:18:38,576 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:18:38,576 INFO  L85        PathProgramCache]: Analyzing trace with hash 1411090704, now seen corresponding path program 1 times
[2023-12-25 17:18:38,576 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:18:38,576 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132841986]
[2023-12-25 17:18:38,577 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:18:38,577 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:18:38,993 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:18:38,993 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [21944033]
[2023-12-25 17:18:38,994 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:18:38,995 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:18:38,995 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:18:38,995 INFO  L229       MonitoredProcess]: Starting monitored process 91 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:18:38,996 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process
[2023-12-25 17:18:46,031 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:18:46,216 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30891 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:18:46,267 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:18:46,452 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked.
[2023-12-25 17:18:46,452 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:18:46,452 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:18:46,452 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132841986]
[2023-12-25 17:18:46,452 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:18:46,452 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21944033]
[2023-12-25 17:18:46,452 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [21944033] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:18:46,452 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:18:46,453 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-25 17:18:46,453 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705066036]
[2023-12-25 17:18:46,453 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:18:46,455 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-25 17:18:46,456 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:18:46,457 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-25 17:18:46,457 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2023-12-25 17:18:46,458 INFO  L87              Difference]: Start difference. First operand 8018 states and 13282 transitions. Second operand  has 8 states, 8 states have (on average 610.625) internal successors, (4885), 8 states have internal predecessors, (4885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:46,900 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:18:46,900 INFO  L93              Difference]: Finished difference Result 22307 states and 36936 transitions.
[2023-12-25 17:18:46,901 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-25 17:18:46,902 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 610.625) internal successors, (4885), 8 states have internal predecessors, (4885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5146
[2023-12-25 17:18:46,904 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:18:46,914 INFO  L225             Difference]: With dead ends: 22307
[2023-12-25 17:18:46,914 INFO  L226             Difference]: Without dead ends: 14937
[2023-12-25 17:18:46,918 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5154 GetRequests, 5142 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:18:46,918 INFO  L413           NwaCegarLoop]: 12643 mSDtfsCounter, 33862 mSDsluCounter, 61229 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33862 SdHoareTripleChecker+Valid, 73872 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:18:46,918 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33862 Valid, 73872 Invalid, 52 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:18:46,925 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14937 states.
[2023-12-25 17:18:46,979 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14937 to 8018.
[2023-12-25 17:18:46,984 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8018 states, 8017 states have (on average 1.6567294499189222) internal successors, (13282), 8017 states have internal predecessors, (13282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:46,990 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8018 states to 8018 states and 13282 transitions.
[2023-12-25 17:18:46,991 INFO  L78                 Accepts]: Start accepts. Automaton has 8018 states and 13282 transitions. Word has length 5146
[2023-12-25 17:18:46,992 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:18:46,992 INFO  L495      AbstractCegarLoop]: Abstraction has 8018 states and 13282 transitions.
[2023-12-25 17:18:46,993 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 610.625) internal successors, (4885), 8 states have internal predecessors, (4885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 17:18:46,993 INFO  L276                IsEmpty]: Start isEmpty. Operand 8018 states and 13282 transitions.
[2023-12-25 17:18:47,143 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5148
[2023-12-25 17:18:47,144 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:18:47,145 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-12-25 17:18:47,238 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Forceful destruction successful, exit code 0
[2023-12-25 17:18:47,345 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,91 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:18:47,345 INFO  L420      AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:18:47,346 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:18:47,346 INFO  L85        PathProgramCache]: Analyzing trace with hash 1522061200, now seen corresponding path program 1 times
[2023-12-25 17:18:47,346 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:18:47,346 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039528067]
[2023-12-25 17:18:47,347 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:18:47,347 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:18:47,721 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 17:18:47,721 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2064794858]
[2023-12-25 17:18:47,722 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:18:47,723 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:18:47,723 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:18:47,724 INFO  L229       MonitoredProcess]: Starting monitored process 92 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 17:18:47,724 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process
[2023-12-25 17:18:54,735 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:18:54,923 INFO  L262         TraceCheckSpWp]: Trace formula consists of 30894 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 17:18:54,982 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 17:18:55,240 INFO  L134       CoverageAnalysis]: Checked inductivity of 434 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked.
[2023-12-25 17:18:55,240 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 17:18:55,240 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:18:55,240 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039528067]
[2023-12-25 17:18:55,240 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 17:18:55,240 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064794858]
[2023-12-25 17:18:55,240 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064794858] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:18:55,240 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:18:55,241 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-25 17:18:55,241 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268959043]
[2023-12-25 17:18:55,241 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:18:55,243 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-25 17:18:55,243 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:18:55,245 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-25 17:18:55,245 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2023-12-25 17:18:55,246 INFO  L87              Difference]: Start difference. First operand 8018 states and 13282 transitions. Second operand  has 8 states, 8 states have (on average 610.375) internal successors, (4883), 8 states have internal predecessors, (4883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
Received shutdown request...
[2023-12-25 17:18:55,479 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-25 17:18:55,479 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5155 GetRequests, 5143 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182
[2023-12-25 17:18:55,480 INFO  L413           NwaCegarLoop]: 6555 mSDtfsCounter, 16981 mSDsluCounter, 31485 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16981 SdHoareTripleChecker+Valid, 38040 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:18:55,480 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [16981 Valid, 38040 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 17:18:55,480 INFO  L805   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-25 17:18:55,526 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-25 17:18:55,526 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-25 17:18:55,572 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0
[2023-12-25 17:18:55,696 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,92 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 17:18:55,697 WARN  L619      AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (8018states) and FLOYD_HOARE automaton (currently 9 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (10740 states constructed, input type IntersectNwa).
[2023-12-25 17:18:55,700 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:18:55,702 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-25 17:18:55,702 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 05:18:55 BoogieIcfgContainer
[2023-12-25 17:18:55,703 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-25 17:18:55,703 INFO  L158              Benchmark]: Toolchain (without parser) took 802264.63ms. Allocated memory was 199.2MB in the beginning and 5.3GB in the end (delta: 5.1GB). Free memory was 149.2MB in the beginning and 670.9MB in the end (delta: -521.7MB). Peak memory consumption was 4.6GB. Max. memory is 8.0GB.
[2023-12-25 17:18:55,703 INFO  L158              Benchmark]: CDTParser took 0.10ms. Allocated memory is still 199.2MB. Free memory is still 157.1MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-25 17:18:55,703 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1710.70ms. Allocated memory was 199.2MB in the beginning and 497.0MB in the end (delta: 297.8MB). Free memory was 148.8MB in the beginning and 282.9MB in the end (delta: -134.1MB). Peak memory consumption was 202.9MB. Max. memory is 8.0GB.
[2023-12-25 17:18:55,703 INFO  L158              Benchmark]: Boogie Procedure Inliner took 2437.53ms. Allocated memory was 497.0MB in the beginning and 3.0GB in the end (delta: 2.5GB). Free memory was 282.4MB in the beginning and 2.4GB in the end (delta: -2.2GB). Peak memory consumption was 375.9MB. Max. memory is 8.0GB.
[2023-12-25 17:18:55,703 INFO  L158              Benchmark]: Boogie Preprocessor took 2310.22ms. Allocated memory is still 3.0GB. Free memory was 2.4GB in the beginning and 2.2GB in the end (delta: 194.0MB). Peak memory consumption was 219.7MB. Max. memory is 8.0GB.
[2023-12-25 17:18:55,703 INFO  L158              Benchmark]: RCFGBuilder took 13751.11ms. Allocated memory was 3.0GB in the beginning and 5.0GB in the end (delta: 2.0GB). Free memory was 2.2GB in the beginning and 3.6GB in the end (delta: -1.3GB). Peak memory consumption was 881.0MB. Max. memory is 8.0GB.
[2023-12-25 17:18:55,703 INFO  L158              Benchmark]: TraceAbstraction took 782050.13ms. Allocated memory was 5.0GB in the beginning and 5.3GB in the end (delta: 297.8MB). Free memory was 3.6GB in the beginning and 670.9MB in the end (delta: 2.9GB). Peak memory consumption was 3.2GB. Max. memory is 8.0GB.
[2023-12-25 17:18:55,704 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.10ms. Allocated memory is still 199.2MB. Free memory is still 157.1MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 1710.70ms. Allocated memory was 199.2MB in the beginning and 497.0MB in the end (delta: 297.8MB). Free memory was 148.8MB in the beginning and 282.9MB in the end (delta: -134.1MB). Peak memory consumption was 202.9MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 2437.53ms. Allocated memory was 497.0MB in the beginning and 3.0GB in the end (delta: 2.5GB). Free memory was 282.4MB in the beginning and 2.4GB in the end (delta: -2.2GB). Peak memory consumption was 375.9MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 2310.22ms. Allocated memory is still 3.0GB. Free memory was 2.4GB in the beginning and 2.2GB in the end (delta: 194.0MB). Peak memory consumption was 219.7MB. Max. memory is 8.0GB.
 * RCFGBuilder took 13751.11ms. Allocated memory was 3.0GB in the beginning and 5.0GB in the end (delta: 2.0GB). Free memory was 2.2GB in the beginning and 3.6GB in the end (delta: -1.3GB). Peak memory consumption was 881.0MB. Max. memory is 8.0GB.
 * TraceAbstraction took 782050.13ms. Allocated memory was 5.0GB in the beginning and 5.3GB in the end (delta: 297.8MB). Free memory was 3.6GB in the beginning and 670.9MB in the end (delta: 2.9GB). Peak memory consumption was 3.2GB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction)
    Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was constructing difference of abstraction (8018states) and FLOYD_HOARE automaton (currently 9 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (10740 states constructed, input type IntersectNwa).
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 7159 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 782.0s, OverallIterations: 94, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 14.6s, AutomataDifference: 37.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2840538 SdHoareTripleChecker+Valid, 8.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2840538 mSDsluCounter, 5741146 SdHoareTripleChecker+Invalid, 7.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4552754 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4248 IncrementalHoareTripleChecker+Invalid, 4263 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 1188392 mSDtfsCounter, 4248 mSolverCounterSat, 7.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 465064 GetRequests, 464040 SyntacticMatches, 0 SemanticMatches, 1024 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1411 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8018occurred in iteration=84, InterpolantAutomatonStates: 857, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.1s AutomataMinimizationTime, 93 MinimizatonAttempts, 572965 StatesRemovedByMinimization, 92 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 154.1s SsaConstructionTime, 379.8s SatisfiabilityAnalysisTime, 45.1s InterpolantComputationTime, 466079 NumberOfCodeBlocks, 466079 NumberOfCodeBlocksAsserted, 94 NumberOfCheckSat, 465985 ConstructedInterpolants, 0 QuantifiedInterpolants, 492938 SizeOfPredicates, 422 NumberOfNonLiveVariables, 2798353 ConjunctsInSsa, 1633 ConjunctsInUnsatCore, 94 InterpolantComputations, 94 PerfectInterpolantSequences, 39494/39494 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown