/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-75.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-21 02:52:09,002 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-21 02:52:09,070 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-21 02:52:09,074 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-21 02:52:09,074 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-21 02:52:09,096 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-21 02:52:09,096 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-21 02:52:09,096 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-21 02:52:09,097 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-21 02:52:09,100 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-21 02:52:09,100 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-21 02:52:09,100 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-21 02:52:09,101 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-21 02:52:09,102 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-21 02:52:09,102 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-21 02:52:09,102 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-21 02:52:09,102 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-21 02:52:09,102 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-21 02:52:09,102 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-21 02:52:09,103 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-21 02:52:09,103 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-21 02:52:09,104 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-21 02:52:09,104 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-21 02:52:09,104 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-21 02:52:09,104 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-21 02:52:09,104 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-21 02:52:09,105 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-21 02:52:09,105 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-21 02:52:09,105 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-21 02:52:09,105 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-21 02:52:09,106 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-21 02:52:09,106 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-21 02:52:09,106 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-21 02:52:09,107 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-21 02:52:09,107 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-21 02:52:09,107 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-21 02:52:09,107 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-21 02:52:09,107 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-21 02:52:09,107 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-21 02:52:09,107 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-21 02:52:09,107 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-21 02:52:09,108 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-21 02:52:09,108 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-21 02:52:09,108 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false
[2023-12-21 02:52:09,303 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-21 02:52:09,320 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-21 02:52:09,322 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-21 02:52:09,323 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-21 02:52:09,323 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-21 02:52:09,324 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-75.i
[2023-12-21 02:52:10,293 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-21 02:52:10,485 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-21 02:52:10,485 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-75.i
[2023-12-21 02:52:10,495 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43c55cc20/7ebfe261779d4913bd666dc46feadcd8/FLAG6264c1af0
[2023-12-21 02:52:10,506 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43c55cc20/7ebfe261779d4913bd666dc46feadcd8
[2023-12-21 02:52:10,508 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-21 02:52:10,509 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-21 02:52:10,510 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-21 02:52:10,511 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-21 02:52:10,514 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-21 02:52:10,514 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:52:10" (1/1) ...
[2023-12-21 02:52:10,515 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e05c645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:52:10, skipping insertion in model container
[2023-12-21 02:52:10,515 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:52:10" (1/1) ...
[2023-12-21 02:52:10,544 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-21 02:52:10,660 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-75.i[917,930]
[2023-12-21 02:52:10,725 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-21 02:52:10,738 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-21 02:52:10,748 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-75.i[917,930]
[2023-12-21 02:52:10,787 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-21 02:52:10,800 INFO  L206         MainTranslator]: Completed translation
[2023-12-21 02:52:10,801 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:52:10 WrapperNode
[2023-12-21 02:52:10,801 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-21 02:52:10,802 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-21 02:52:10,802 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-21 02:52:10,802 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-21 02:52:10,806 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:52:10" (1/1) ...
[2023-12-21 02:52:10,821 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:52:10" (1/1) ...
[2023-12-21 02:52:10,860 INFO  L138                Inliner]: procedures = 29, calls = 160, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 473
[2023-12-21 02:52:10,860 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-21 02:52:10,861 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-21 02:52:10,861 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-21 02:52:10,861 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-21 02:52:10,873 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:52:10" (1/1) ...
[2023-12-21 02:52:10,873 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:52:10" (1/1) ...
[2023-12-21 02:52:10,884 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:52:10" (1/1) ...
[2023-12-21 02:52:10,909 INFO  L175           MemorySlicer]: Split 131 memory accesses to 2 slices as follows [2, 129]. 98 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 14]. The 18 writes are split as follows [0, 18].
[2023-12-21 02:52:10,909 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:52:10" (1/1) ...
[2023-12-21 02:52:10,909 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:52:10" (1/1) ...
[2023-12-21 02:52:10,928 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:52:10" (1/1) ...
[2023-12-21 02:52:10,947 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:52:10" (1/1) ...
[2023-12-21 02:52:10,949 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:52:10" (1/1) ...
[2023-12-21 02:52:10,950 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:52:10" (1/1) ...
[2023-12-21 02:52:10,953 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-21 02:52:10,953 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-21 02:52:10,954 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-21 02:52:10,954 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-21 02:52:10,954 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:52:10" (1/1) ...
[2023-12-21 02:52:10,961 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-21 02:52:10,970 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-21 02:52:10,999 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)
[2023-12-21 02:52:11,000 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
[2023-12-21 02:52:11,017 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-21 02:52:11,017 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2023-12-21 02:52:11,017 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2023-12-21 02:52:11,017 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#0
[2023-12-21 02:52:11,017 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#1
[2023-12-21 02:52:11,018 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#0
[2023-12-21 02:52:11,018 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#1
[2023-12-21 02:52:11,018 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2023-12-21 02:52:11,018 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2023-12-21 02:52:11,018 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~real#0
[2023-12-21 02:52:11,018 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~real#1
[2023-12-21 02:52:11,018 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-21 02:52:11,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-21 02:52:11,018 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-21 02:52:11,019 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2023-12-21 02:52:11,019 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-21 02:52:11,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-21 02:52:11,148 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-21 02:52:11,149 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-21 02:52:11,562 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-21 02:52:11,596 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-21 02:52:11,597 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-21 02:52:11,597 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:52:11 BoogieIcfgContainer
[2023-12-21 02:52:11,597 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-21 02:52:11,599 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-21 02:52:11,599 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-21 02:52:11,602 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-21 02:52:11,603 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:52:10" (1/3) ...
[2023-12-21 02:52:11,604 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15192ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:52:11, skipping insertion in model container
[2023-12-21 02:52:11,605 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:52:10" (2/3) ...
[2023-12-21 02:52:11,605 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15192ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:52:11, skipping insertion in model container
[2023-12-21 02:52:11,605 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:52:11" (3/3) ...
[2023-12-21 02:52:11,606 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-75.i
[2023-12-21 02:52:11,621 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-21 02:52:11,621 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-21 02:52:11,658 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-21 02:52:11,663 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;@5ee6c422, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-21 02:52:11,663 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-21 02:52:11,666 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 90 states, 70 states have (on average 1.4428571428571428) internal successors, (101), 71 states have internal predecessors, (101), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-21 02:52:11,677 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2023-12-21 02:52:11,677 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-21 02:52:11,677 INFO  L195           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-21 02:52:11,678 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-21 02:52:11,681 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-21 02:52:11,681 INFO  L85        PathProgramCache]: Analyzing trace with hash 139789455, now seen corresponding path program 1 times
[2023-12-21 02:52:11,687 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-21 02:52:11,687 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96072111]
[2023-12-21 02:52:11,687 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-21 02:52:11,687 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-21 02:52:11,809 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-21 02:52:11,894 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-21 02:52:11,894 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96072111]
[2023-12-21 02:52:11,895 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-21 02:52:11,895 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495589695]
[2023-12-21 02:52:11,895 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-21 02:52:11,895 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-21 02:52:11,895 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-21 02:52:11,900 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)
[2023-12-21 02:52:11,924 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-21 02:52:12,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-21 02:52:12,119 INFO  L262         TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-21 02:52:12,127 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-21 02:52:12,172 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked.
[2023-12-21 02:52:12,172 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-21 02:52:12,172 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495589695] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-21 02:52:12,172 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-21 02:52:12,173 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-21 02:52:12,174 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43039085]
[2023-12-21 02:52:12,174 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-21 02:52:12,178 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-21 02:52:12,178 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-21 02:52:12,197 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-21 02:52:12,197 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-21 02:52:12,199 INFO  L87              Difference]: Start difference. First operand  has 90 states, 70 states have (on average 1.4428571428571428) internal successors, (101), 71 states have internal predecessors, (101), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand  has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-21 02:52:12,238 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-21 02:52:12,238 INFO  L93              Difference]: Finished difference Result 177 states and 285 transitions.
[2023-12-21 02:52:12,239 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-21 02:52:12,240 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131
[2023-12-21 02:52:12,241 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-21 02:52:12,246 INFO  L225             Difference]: With dead ends: 177
[2023-12-21 02:52:12,246 INFO  L226             Difference]: Without dead ends: 88
[2023-12-21 02:52:12,249 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-21 02:52:12,251 INFO  L413           NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-21 02:52:12,253 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-21 02:52:12,263 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 88 states.
[2023-12-21 02:52:12,286 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88.
[2023-12-21 02:52:12,288 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 88 states, 69 states have (on average 1.391304347826087) internal successors, (96), 69 states have internal predecessors, (96), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-21 02:52:12,294 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 130 transitions.
[2023-12-21 02:52:12,295 INFO  L78                 Accepts]: Start accepts. Automaton has 88 states and 130 transitions. Word has length 131
[2023-12-21 02:52:12,295 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-21 02:52:12,295 INFO  L495      AbstractCegarLoop]: Abstraction has 88 states and 130 transitions.
[2023-12-21 02:52:12,295 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-21 02:52:12,295 INFO  L276                IsEmpty]: Start isEmpty. Operand 88 states and 130 transitions.
[2023-12-21 02:52:12,301 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2023-12-21 02:52:12,301 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-21 02:52:12,302 INFO  L195           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-21 02:52:12,311 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-12-21 02:52:12,508 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-12-21 02:52:12,508 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-21 02:52:12,509 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-21 02:52:12,509 INFO  L85        PathProgramCache]: Analyzing trace with hash 1775774337, now seen corresponding path program 1 times
[2023-12-21 02:52:12,509 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-21 02:52:12,509 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830433534]
[2023-12-21 02:52:12,509 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-21 02:52:12,510 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-21 02:52:12,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-21 02:52:12,589 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-21 02:52:12,589 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830433534]
[2023-12-21 02:52:12,589 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-21 02:52:12,589 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445322816]
[2023-12-21 02:52:12,589 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-21 02:52:12,589 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-21 02:52:12,589 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-21 02:52:12,594 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)
[2023-12-21 02:52:12,618 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-21 02:52:12,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-21 02:52:12,799 INFO  L262         TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-21 02:52:12,808 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-21 02:52:12,856 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked.
[2023-12-21 02:52:12,856 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-21 02:52:12,856 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445322816] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-21 02:52:12,856 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-21 02:52:12,857 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-21 02:52:12,857 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809766117]
[2023-12-21 02:52:12,857 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-21 02:52:12,859 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-21 02:52:12,859 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-21 02:52:12,860 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-21 02:52:12,860 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-21 02:52:12,861 INFO  L87              Difference]: Start difference. First operand 88 states and 130 transitions. Second operand  has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-21 02:52:12,915 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-21 02:52:12,915 INFO  L93              Difference]: Finished difference Result 181 states and 268 transitions.
[2023-12-21 02:52:12,916 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-21 02:52:12,916 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131
[2023-12-21 02:52:12,916 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-21 02:52:12,917 INFO  L225             Difference]: With dead ends: 181
[2023-12-21 02:52:12,917 INFO  L226             Difference]: Without dead ends: 94
[2023-12-21 02:52:12,918 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-21 02:52:12,918 INFO  L413           NwaCegarLoop]: 125 mSDtfsCounter, 10 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-21 02:52:12,919 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 367 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-21 02:52:12,919 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2023-12-21 02:52:12,924 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90.
[2023-12-21 02:52:12,925 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 90 states, 71 states have (on average 1.380281690140845) internal successors, (98), 71 states have internal predecessors, (98), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-21 02:52:12,925 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 132 transitions.
[2023-12-21 02:52:12,925 INFO  L78                 Accepts]: Start accepts. Automaton has 90 states and 132 transitions. Word has length 131
[2023-12-21 02:52:12,925 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-21 02:52:12,926 INFO  L495      AbstractCegarLoop]: Abstraction has 90 states and 132 transitions.
[2023-12-21 02:52:12,926 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-21 02:52:12,926 INFO  L276                IsEmpty]: Start isEmpty. Operand 90 states and 132 transitions.
[2023-12-21 02:52:12,927 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2023-12-21 02:52:12,927 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-21 02:52:12,927 INFO  L195           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-21 02:52:12,935 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-12-21 02:52:13,133 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-12-21 02:52:13,133 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-21 02:52:13,134 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-21 02:52:13,134 INFO  L85        PathProgramCache]: Analyzing trace with hash -797190273, now seen corresponding path program 1 times
[2023-12-21 02:52:13,134 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-21 02:52:13,134 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024822577]
[2023-12-21 02:52:13,134 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-21 02:52:13,135 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-21 02:52:13,176 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-21 02:52:13,176 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1485511344]
[2023-12-21 02:52:13,176 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-21 02:52:13,176 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-21 02:52:13,177 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-21 02:52:13,183 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)
[2023-12-21 02:52:13,204 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-21 02:52:13,350 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-21 02:52:13,352 INFO  L262         TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-21 02:52:13,354 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-21 02:52:13,366 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-21 02:52:13,366 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-21 02:52:13,366 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-21 02:52:13,366 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024822577]
[2023-12-21 02:52:13,366 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-21 02:52:13,366 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485511344]
[2023-12-21 02:52:13,366 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485511344] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-21 02:52:13,366 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-21 02:52:13,367 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-21 02:52:13,367 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485961120]
[2023-12-21 02:52:13,367 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-21 02:52:13,367 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-21 02:52:13,367 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-21 02:52:13,368 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-21 02:52:13,368 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-21 02:52:13,368 INFO  L87              Difference]: Start difference. First operand 90 states and 132 transitions. Second operand  has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-21 02:52:13,395 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-21 02:52:13,395 INFO  L93              Difference]: Finished difference Result 187 states and 274 transitions.
[2023-12-21 02:52:13,395 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-21 02:52:13,395 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131
[2023-12-21 02:52:13,396 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-21 02:52:13,396 INFO  L225             Difference]: With dead ends: 187
[2023-12-21 02:52:13,396 INFO  L226             Difference]: Without dead ends: 98
[2023-12-21 02:52:13,397 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-21 02:52:13,397 INFO  L413           NwaCegarLoop]: 123 mSDtfsCounter, 12 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-21 02:52:13,398 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 366 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-21 02:52:13,398 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 98 states.
[2023-12-21 02:52:13,402 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 92.
[2023-12-21 02:52:13,402 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 92 states, 73 states have (on average 1.36986301369863) internal successors, (100), 73 states have internal predecessors, (100), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-21 02:52:13,403 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 134 transitions.
[2023-12-21 02:52:13,403 INFO  L78                 Accepts]: Start accepts. Automaton has 92 states and 134 transitions. Word has length 131
[2023-12-21 02:52:13,403 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-21 02:52:13,404 INFO  L495      AbstractCegarLoop]: Abstraction has 92 states and 134 transitions.
[2023-12-21 02:52:13,404 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-21 02:52:13,404 INFO  L276                IsEmpty]: Start isEmpty. Operand 92 states and 134 transitions.
[2023-12-21 02:52:13,405 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2023-12-21 02:52:13,405 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-21 02:52:13,405 INFO  L195           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-21 02:52:13,411 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-12-21 02:52:13,611 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-21 02:52:13,611 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-21 02:52:13,611 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-21 02:52:13,612 INFO  L85        PathProgramCache]: Analyzing trace with hash -739931971, now seen corresponding path program 1 times
[2023-12-21 02:52:13,612 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-21 02:52:13,612 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281167435]
[2023-12-21 02:52:13,612 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-21 02:52:13,612 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-21 02:52:13,645 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-21 02:52:13,646 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1078770533]
[2023-12-21 02:52:13,646 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-21 02:52:13,646 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-21 02:52:13,646 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-21 02:52:13,650 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)
[2023-12-21 02:52:13,663 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-21 02:52:13,817 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-21 02:52:13,819 INFO  L262         TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-21 02:52:13,822 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-21 02:52:13,837 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-21 02:52:13,837 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-21 02:52:13,837 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-21 02:52:13,837 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281167435]
[2023-12-21 02:52:13,837 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-21 02:52:13,837 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078770533]
[2023-12-21 02:52:13,838 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078770533] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-21 02:52:13,838 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-21 02:52:13,838 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-21 02:52:13,838 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535358184]
[2023-12-21 02:52:13,838 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-21 02:52:13,840 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-21 02:52:13,840 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-21 02:52:13,841 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-21 02:52:13,841 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-21 02:52:13,842 INFO  L87              Difference]: Start difference. First operand 92 states and 134 transitions. Second operand  has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-21 02:52:13,869 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-21 02:52:13,870 INFO  L93              Difference]: Finished difference Result 187 states and 272 transitions.
[2023-12-21 02:52:13,870 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-21 02:52:13,870 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131
[2023-12-21 02:52:13,871 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-21 02:52:13,871 INFO  L225             Difference]: With dead ends: 187
[2023-12-21 02:52:13,871 INFO  L226             Difference]: Without dead ends: 96
[2023-12-21 02:52:13,872 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-21 02:52:13,872 INFO  L413           NwaCegarLoop]: 124 mSDtfsCounter, 3 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-21 02:52:13,872 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 367 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-21 02:52:13,873 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 96 states.
[2023-12-21 02:52:13,876 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94.
[2023-12-21 02:52:13,877 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 94 states, 75 states have (on average 1.36) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-21 02:52:13,877 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 136 transitions.
[2023-12-21 02:52:13,877 INFO  L78                 Accepts]: Start accepts. Automaton has 94 states and 136 transitions. Word has length 131
[2023-12-21 02:52:13,878 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-21 02:52:13,878 INFO  L495      AbstractCegarLoop]: Abstraction has 94 states and 136 transitions.
[2023-12-21 02:52:13,878 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-21 02:52:13,878 INFO  L276                IsEmpty]: Start isEmpty. Operand 94 states and 136 transitions.
[2023-12-21 02:52:13,879 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2023-12-21 02:52:13,879 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-21 02:52:13,879 INFO  L195           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-21 02:52:13,890 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-12-21 02:52:14,088 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-21 02:52:14,088 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-21 02:52:14,089 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-21 02:52:14,089 INFO  L85        PathProgramCache]: Analyzing trace with hash -739872389, now seen corresponding path program 1 times
[2023-12-21 02:52:14,089 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-21 02:52:14,089 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299976800]
[2023-12-21 02:52:14,089 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-21 02:52:14,089 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-21 02:52:14,117 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-21 02:52:14,117 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1092037566]
[2023-12-21 02:52:14,118 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-21 02:52:14,118 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-21 02:52:14,118 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-21 02:52:14,149 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)
[2023-12-21 02:52:14,151 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-12-21 02:52:14,308 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-21 02:52:14,312 INFO  L262         TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 41 conjunts are in the unsatisfiable core
[2023-12-21 02:52:14,320 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-21 02:52:15,490 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15
[2023-12-21 02:52:15,540 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-12-21 02:52:15,541 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-12-21 02:52:15,554 INFO  L349             Elim1Store]: treesize reduction 49, result has 12.5 percent of original size
[2023-12-21 02:52:15,555 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 32
[2023-12-21 02:52:15,634 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-12-21 02:52:15,635 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-12-21 02:52:15,652 INFO  L349             Elim1Store]: treesize reduction 12, result has 67.6 percent of original size
[2023-12-21 02:52:15,652 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 55
[2023-12-21 02:52:15,670 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked.
[2023-12-21 02:52:15,671 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-21 02:52:15,762 INFO  L349             Elim1Store]: treesize reduction 4, result has 63.6 percent of original size
[2023-12-21 02:52:15,762 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 118 treesize of output 109
[2023-12-21 02:52:16,672 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-21 02:52:16,673 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-21 02:52:16,673 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299976800]
[2023-12-21 02:52:16,673 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-21 02:52:16,673 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092037566]
[2023-12-21 02:52:16,673 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092037566] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-21 02:52:16,673 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-21 02:52:16,673 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13
[2023-12-21 02:52:16,673 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922140964]
[2023-12-21 02:52:16,673 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-21 02:52:16,674 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-21 02:52:16,674 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-21 02:52:16,674 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-21 02:52:16,674 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156
[2023-12-21 02:52:16,675 INFO  L87              Difference]: Start difference. First operand 94 states and 136 transitions. Second operand  has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-21 02:52:17,019 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-21 02:52:17,019 INFO  L93              Difference]: Finished difference Result 187 states and 271 transitions.
[2023-12-21 02:52:17,019 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-21 02:52:17,020 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131
[2023-12-21 02:52:17,020 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-21 02:52:17,021 INFO  L225             Difference]: With dead ends: 187
[2023-12-21 02:52:17,021 INFO  L226             Difference]: Without dead ends: 94
[2023-12-21 02:52:17,021 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240
[2023-12-21 02:52:17,022 INFO  L413           NwaCegarLoop]: 96 mSDtfsCounter, 162 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-21 02:52:17,022 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 311 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-21 02:52:17,022 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2023-12-21 02:52:17,027 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94.
[2023-12-21 02:52:17,027 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 94 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-21 02:52:17,028 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 135 transitions.
[2023-12-21 02:52:17,028 INFO  L78                 Accepts]: Start accepts. Automaton has 94 states and 135 transitions. Word has length 131
[2023-12-21 02:52:17,028 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-21 02:52:17,028 INFO  L495      AbstractCegarLoop]: Abstraction has 94 states and 135 transitions.
[2023-12-21 02:52:17,028 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-21 02:52:17,028 INFO  L276                IsEmpty]: Start isEmpty. Operand 94 states and 135 transitions.
[2023-12-21 02:52:17,029 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2023-12-21 02:52:17,029 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-21 02:52:17,029 INFO  L195           NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-21 02:52:17,037 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-12-21 02:52:17,237 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-21 02:52:17,238 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-21 02:52:17,238 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-21 02:52:17,238 INFO  L85        PathProgramCache]: Analyzing trace with hash -616259072, now seen corresponding path program 1 times
[2023-12-21 02:52:17,238 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-21 02:52:17,238 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84532245]
[2023-12-21 02:52:17,238 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-21 02:52:17,238 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-21 02:52:17,278 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-21 02:52:17,279 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1639831062]
[2023-12-21 02:52:17,279 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-21 02:52:17,279 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-21 02:52:17,279 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-21 02:52:17,280 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)
[2023-12-21 02:52:17,298 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-12-21 02:52:17,453 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-21 02:52:17,456 INFO  L262         TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 55 conjunts are in the unsatisfiable core
[2023-12-21 02:52:17,460 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-21 02:52:19,010 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2023-12-21 02:52:19,032 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19
[2023-12-21 02:52:19,106 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29
[2023-12-21 02:52:19,194 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-12-21 02:52:19,195 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-12-21 02:52:19,195 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2023-12-21 02:52:19,206 INFO  L349             Elim1Store]: treesize reduction 61, result has 10.3 percent of original size
[2023-12-21 02:52:19,206 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 42 treesize of output 46
[2023-12-21 02:52:19,378 INFO  L134       CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked.
[2023-12-21 02:52:19,378 INFO  L327         TraceCheckSpWp]: Computing backward predicates...