/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.synapse.1.prop1-func-interl.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-25 22:22:11,448 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-25 22:22:11,515 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 22:22:11,519 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-25 22:22:11,519 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-25 22:22:11,541 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-25 22:22:11,541 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-25 22:22:11,541 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-25 22:22:11,542 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-25 22:22:11,545 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-25 22:22:11,545 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-25 22:22:11,545 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-25 22:22:11,546 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-25 22:22:11,547 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-25 22:22:11,547 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-25 22:22:11,547 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-25 22:22:11,547 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-25 22:22:11,547 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-25 22:22:11,548 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-25 22:22:11,548 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-25 22:22:11,548 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-25 22:22:11,548 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-25 22:22:11,548 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-25 22:22:11,548 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-25 22:22:11,549 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-25 22:22:11,549 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-25 22:22:11,549 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-25 22:22:11,549 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-25 22:22:11,549 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-25 22:22:11,550 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 22:22:11,550 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-25 22:22:11,550 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-25 22:22:11,551 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-25 22:22:11,551 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-25 22:22:11,551 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-25 22:22:11,551 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-25 22:22:11,551 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-25 22:22:11,551 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-25 22:22:11,551 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-25 22:22:11,551 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-25 22:22:11,551 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-25 22:22:11,741 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-25 22:22:11,765 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-25 22:22:11,766 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-25 22:22:11,767 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-25 22:22:11,768 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-25 22:22:11,769 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.synapse.1.prop1-func-interl.c
[2023-12-25 22:22:12,840 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-25 22:22:13,153 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-25 22:22:13,154 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.synapse.1.prop1-func-interl.c
[2023-12-25 22:22:13,182 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71ecd9ae1/526259947204479ca00128553bc06c6b/FLAGad2a3abaa
[2023-12-25 22:22:13,197 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71ecd9ae1/526259947204479ca00128553bc06c6b
[2023-12-25 22:22:13,199 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-25 22:22:13,200 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-25 22:22:13,202 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-25 22:22:13,202 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-25 22:22:13,205 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-25 22:22:13,206 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 10:22:13" (1/1) ...
[2023-12-25 22:22:13,207 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f0a6c29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:22:13, skipping insertion in model container
[2023-12-25 22:22:13,207 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 10:22:13" (1/1) ...
[2023-12-25 22:22:13,340 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-25 22:22:13,519 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.synapse.1.prop1-func-interl.c[1174,1187]
[2023-12-25 22:22:14,053 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 22:22:14,060 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-25 22:22:14,066 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.synapse.1.prop1-func-interl.c[1174,1187]
[2023-12-25 22:22:14,474 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 22:22:14,485 INFO  L206         MainTranslator]: Completed translation
[2023-12-25 22:22:14,485 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:22:14 WrapperNode
[2023-12-25 22:22:14,485 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-25 22:22:14,486 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-25 22:22:14,486 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-25 22:22:14,486 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-25 22:22:14,491 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:22:14" (1/1) ...
[2023-12-25 22:22:14,647 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:22:14" (1/1) ...
[2023-12-25 22:22:17,089 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30686
[2023-12-25 22:22:17,090 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-25 22:22:17,090 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-25 22:22:17,090 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-25 22:22:17,090 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-25 22:22:17,099 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:22:14" (1/1) ...
[2023-12-25 22:22:17,099 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:22:14" (1/1) ...
[2023-12-25 22:22:17,818 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:22:14" (1/1) ...
[2023-12-25 22:22:18,275 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 22:22:18,276 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:22:14" (1/1) ...
[2023-12-25 22:22:18,276 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:22:14" (1/1) ...
[2023-12-25 22:22:19,127 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:22:14" (1/1) ...
[2023-12-25 22:22:19,303 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:22:14" (1/1) ...
[2023-12-25 22:22:19,406 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:22:14" (1/1) ...
[2023-12-25 22:22:19,490 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:22:14" (1/1) ...
[2023-12-25 22:22:19,982 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-25 22:22:19,984 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-25 22:22:19,984 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-25 22:22:19,984 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-25 22:22:19,985 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:22:14" (1/1) ...
[2023-12-25 22:22:19,988 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 22:22:19,995 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:22:20,004 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 22:22:20,024 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 22:22:20,042 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-25 22:22:20,042 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-25 22:22:20,042 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-25 22:22:20,042 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-25 22:22:21,136 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-25 22:22:21,137 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-25 22:22:41,033 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-25 22:22:41,367 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-25 22:22:41,367 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-25 22:22:41,367 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 10:22:41 BoogieIcfgContainer
[2023-12-25 22:22:41,368 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-25 22:22:41,369 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-25 22:22:41,369 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-25 22:22:41,371 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-25 22:22:41,372 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 10:22:13" (1/3) ...
[2023-12-25 22:22:41,372 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df18f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 10:22:41, skipping insertion in model container
[2023-12-25 22:22:41,372 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:22:14" (2/3) ...
[2023-12-25 22:22:41,372 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df18f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 10:22:41, skipping insertion in model container
[2023-12-25 22:22:41,373 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 10:22:41" (3/3) ...
[2023-12-25 22:22:41,373 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.synapse.1.prop1-func-interl.c
[2023-12-25 22:22:41,385 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-25 22:22:41,385 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-25 22:22:41,477 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-25 22:22:41,482 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;@436175f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-25 22:22:41,482 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-25 22:22:41,500 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 6853 states, 6851 states have (on average 1.6679316888045541) internal successors, (11427), 6852 states have internal predecessors, (11427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:22:41,517 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 383
[2023-12-25 22:22:41,517 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:22:41,518 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]
[2023-12-25 22:22:41,519 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:22:41,522 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:22:41,523 INFO  L85        PathProgramCache]: Analyzing trace with hash 610720541, now seen corresponding path program 1 times
[2023-12-25 22:22:41,529 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:22:41,529 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30601108]
[2023-12-25 22:22:41,529 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:22:41,530 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:22:41,877 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:22:42,900 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 22:22:42,900 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:22:42,900 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30601108]
[2023-12-25 22:22:42,901 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30601108] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 22:22:42,901 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 22:22:42,901 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 22:22:42,902 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471658487]
[2023-12-25 22:22:42,903 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:22:42,907 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:22:42,908 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:22:42,932 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:22:42,933 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 22:22:42,947 INFO  L87              Difference]: Start difference. First operand  has 6853 states, 6851 states have (on average 1.6679316888045541) internal successors, (11427), 6852 states have internal predecessors, (11427), 0 states have call successors, (0), 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 5 states, 5 states have (on average 76.4) internal successors, (382), 4 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:22:48,925 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:22:48,925 INFO  L93              Difference]: Finished difference Result 20181 states and 33657 transitions.
[2023-12-25 22:22:48,926 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 22:22:48,928 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 76.4) internal successors, (382), 4 states have internal predecessors, (382), 0 states have call successors, (0), 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 382
[2023-12-25 22:22:48,929 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:22:48,987 INFO  L225             Difference]: With dead ends: 20181
[2023-12-25 22:22:48,987 INFO  L226             Difference]: Without dead ends: 13515
[2023-12-25 22:22:49,002 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 22:22:49,005 INFO  L413           NwaCegarLoop]: 8995 mSDtfsCounter, 33272 mSDsluCounter, 17984 mSDsCounter, 0 mSdLazyCounter, 7289 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33272 SdHoareTripleChecker+Valid, 26979 SdHoareTripleChecker+Invalid, 7290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time
[2023-12-25 22:22:49,006 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33272 Valid, 26979 Invalid, 7290 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 7289 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time]
[2023-12-25 22:22:49,047 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13515 states.
[2023-12-25 22:22:49,213 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13515 to 7226.
[2023-12-25 22:22:49,232 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7226 states, 7225 states have (on average 1.667266435986159) internal successors, (12046), 7225 states have internal predecessors, (12046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:22:49,249 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7226 states to 7226 states and 12046 transitions.
[2023-12-25 22:22:49,250 INFO  L78                 Accepts]: Start accepts. Automaton has 7226 states and 12046 transitions. Word has length 382
[2023-12-25 22:22:49,256 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:22:49,256 INFO  L495      AbstractCegarLoop]: Abstraction has 7226 states and 12046 transitions.
[2023-12-25 22:22:49,256 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 76.4) internal successors, (382), 4 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:22:49,256 INFO  L276                IsEmpty]: Start isEmpty. Operand 7226 states and 12046 transitions.
[2023-12-25 22:22:49,262 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 384
[2023-12-25 22:22:49,262 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:22:49,263 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]
[2023-12-25 22:22:49,263 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-25 22:22:49,263 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:22:49,263 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:22:49,264 INFO  L85        PathProgramCache]: Analyzing trace with hash 318659837, now seen corresponding path program 1 times
[2023-12-25 22:22:49,264 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:22:49,264 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017379310]
[2023-12-25 22:22:49,264 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:22:49,264 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:22:49,404 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:22:49,953 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 22:22:49,953 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:22:49,953 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017379310]
[2023-12-25 22:22:49,954 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017379310] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 22:22:49,954 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 22:22:49,954 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 22:22:49,954 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935005431]
[2023-12-25 22:22:49,954 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:22:49,956 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 22:22:49,959 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:22:49,960 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 22:22:49,960 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 22:22:49,960 INFO  L87              Difference]: Start difference. First operand 7226 states and 12046 transitions. Second operand  has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:22:54,019 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:22:54,136 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:22:54,137 INFO  L93              Difference]: Finished difference Result 7230 states and 12050 transitions.
[2023-12-25 22:22:54,137 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 22:22:54,137 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 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 383
[2023-12-25 22:22:54,139 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:22:54,158 INFO  L225             Difference]: With dead ends: 7230
[2023-12-25 22:22:54,158 INFO  L226             Difference]: Without dead ends: 7228
[2023-12-25 22:22:54,160 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 22:22:54,161 INFO  L413           NwaCegarLoop]: 11420 mSDtfsCounter, 1 mSDsluCounter, 22835 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 34255 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2023-12-25 22:22:54,162 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 34255 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time]
[2023-12-25 22:22:54,171 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7228 states.
[2023-12-25 22:22:54,241 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7228 to 7228.
[2023-12-25 22:22:54,260 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7228 states, 7227 states have (on average 1.6670817766708177) internal successors, (12048), 7227 states have internal predecessors, (12048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:22:54,274 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7228 states to 7228 states and 12048 transitions.
[2023-12-25 22:22:54,274 INFO  L78                 Accepts]: Start accepts. Automaton has 7228 states and 12048 transitions. Word has length 383
[2023-12-25 22:22:54,275 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:22:54,275 INFO  L495      AbstractCegarLoop]: Abstraction has 7228 states and 12048 transitions.
[2023-12-25 22:22:54,275 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:22:54,276 INFO  L276                IsEmpty]: Start isEmpty. Operand 7228 states and 12048 transitions.
[2023-12-25 22:22:54,279 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 385
[2023-12-25 22:22:54,279 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:22:54,279 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]
[2023-12-25 22:22:54,279 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-25 22:22:54,279 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:22:54,283 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:22:54,283 INFO  L85        PathProgramCache]: Analyzing trace with hash 1290247571, now seen corresponding path program 1 times
[2023-12-25 22:22:54,283 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:22:54,283 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315971631]
[2023-12-25 22:22:54,284 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:22:54,284 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:22:54,523 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:22:54,868 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 22:22:54,868 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:22:54,868 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315971631]
[2023-12-25 22:22:54,869 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315971631] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 22:22:54,869 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 22:22:54,869 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 22:22:54,871 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010143294]
[2023-12-25 22:22:54,871 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:22:54,871 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 22:22:54,871 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:22:54,872 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 22:22:54,873 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 22:22:54,874 INFO  L87              Difference]: Start difference. First operand 7228 states and 12048 transitions. Second operand  has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:22:55,006 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:22:55,006 INFO  L93              Difference]: Finished difference Result 13897 states and 23166 transitions.
[2023-12-25 22:22:55,007 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 22:22:55,008 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 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 384
[2023-12-25 22:22:55,008 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:22:55,035 INFO  L225             Difference]: With dead ends: 13897
[2023-12-25 22:22:55,035 INFO  L226             Difference]: Without dead ends: 7231
[2023-12-25 22:22:55,044 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 22:22:55,047 INFO  L413           NwaCegarLoop]: 11420 mSDtfsCounter, 1 mSDsluCounter, 22833 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 34253 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 22:22:55,048 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 34253 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 22:22:55,058 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7231 states.
[2023-12-25 22:22:55,132 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7231 to 7230.
[2023-12-25 22:22:55,140 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7230 states, 7229 states have (on average 1.6668972195324387) internal successors, (12050), 7229 states have internal predecessors, (12050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:22:55,157 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7230 states to 7230 states and 12050 transitions.
[2023-12-25 22:22:55,158 INFO  L78                 Accepts]: Start accepts. Automaton has 7230 states and 12050 transitions. Word has length 384
[2023-12-25 22:22:55,158 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:22:55,159 INFO  L495      AbstractCegarLoop]: Abstraction has 7230 states and 12050 transitions.
[2023-12-25 22:22:55,160 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:22:55,161 INFO  L276                IsEmpty]: Start isEmpty. Operand 7230 states and 12050 transitions.
[2023-12-25 22:22:55,165 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 386
[2023-12-25 22:22:55,168 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:22:55,169 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]
[2023-12-25 22:22:55,169 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-25 22:22:55,169 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:22:55,170 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:22:55,170 INFO  L85        PathProgramCache]: Analyzing trace with hash 1132538839, now seen corresponding path program 1 times
[2023-12-25 22:22:55,170 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:22:55,170 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140349255]
[2023-12-25 22:22:55,170 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:22:55,170 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:22:55,275 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:22:55,681 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 22:22:55,682 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:22:55,682 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140349255]
[2023-12-25 22:22:55,682 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140349255] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 22:22:55,682 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 22:22:55,682 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 22:22:55,682 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884441735]
[2023-12-25 22:22:55,682 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:22:55,683 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 22:22:55,683 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:22:55,683 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 22:22:55,683 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-25 22:22:55,683 INFO  L87              Difference]: Start difference. First operand 7230 states and 12050 transitions. Second operand  has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:22:55,988 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:22:55,988 INFO  L93              Difference]: Finished difference Result 20556 states and 34267 transitions.
[2023-12-25 22:22:55,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-25 22:22:55,989 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 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 385
[2023-12-25 22:22:55,990 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:22:56,010 INFO  L225             Difference]: With dead ends: 20556
[2023-12-25 22:22:56,010 INFO  L226             Difference]: Without dead ends: 13888
[2023-12-25 22:22:56,020 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90
[2023-12-25 22:22:56,025 INFO  L413           NwaCegarLoop]: 12036 mSDtfsCounter, 44974 mSDsluCounter, 33925 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44974 SdHoareTripleChecker+Valid, 45961 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 22:22:56,026 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [44974 Valid, 45961 Invalid, 30 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 22:22:56,042 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13888 states.
[2023-12-25 22:22:56,146 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13888 to 7232.
[2023-12-25 22:22:56,156 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7232 states, 7231 states have (on average 1.6667127644862398) internal successors, (12052), 7231 states have internal predecessors, (12052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:22:56,166 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7232 states to 7232 states and 12052 transitions.
[2023-12-25 22:22:56,166 INFO  L78                 Accepts]: Start accepts. Automaton has 7232 states and 12052 transitions. Word has length 385
[2023-12-25 22:22:56,166 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:22:56,167 INFO  L495      AbstractCegarLoop]: Abstraction has 7232 states and 12052 transitions.
[2023-12-25 22:22:56,167 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:22:56,167 INFO  L276                IsEmpty]: Start isEmpty. Operand 7232 states and 12052 transitions.
[2023-12-25 22:22:56,392 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4793
[2023-12-25 22:22:56,392 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:22:56,395 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 22:22:56,395 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-12-25 22:22:56,395 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:22:56,395 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:22:56,396 INFO  L85        PathProgramCache]: Analyzing trace with hash -1342368198, now seen corresponding path program 1 times
[2023-12-25 22:22:56,396 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:22:56,396 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529120898]
[2023-12-25 22:22:56,397 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:22:56,397 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:22:56,853 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:22:56,853 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163163063]
[2023-12-25 22:22:56,854 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:22:56,854 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:22:56,854 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:22:56,856 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 22:22:56,871 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 22:23:01,837 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:23:01,972 INFO  L262         TraceCheckSpWp]: Trace formula consists of 22272 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 22:23:02,046 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:23:02,230 INFO  L134       CoverageAnalysis]: Checked inductivity of 256 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 22:23:02,231 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 22:23:02,231 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:23:02,231 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529120898]
[2023-12-25 22:23:02,231 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:23:02,231 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163163063]
[2023-12-25 22:23:02,231 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163163063] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 22:23:02,231 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 22:23:02,232 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 22:23:02,232 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901161899]
[2023-12-25 22:23:02,232 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:23:02,236 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 22:23:02,236 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:23:02,239 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 22:23:02,239 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 22:23:02,240 INFO  L87              Difference]: Start difference. First operand 7232 states and 12052 transitions. Second operand  has 4 states, 4 states have (on average 1198.0) internal successors, (4792), 4 states have internal predecessors, (4792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:23:02,384 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:23:02,385 INFO  L93              Difference]: Finished difference Result 13910 states and 23184 transitions.
[2023-12-25 22:23:02,385 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 22:23:02,387 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1198.0) internal successors, (4792), 4 states have internal predecessors, (4792), 0 states have call successors, (0), 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 4792
[2023-12-25 22:23:02,387 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:23:02,398 INFO  L225             Difference]: With dead ends: 13910
[2023-12-25 22:23:02,398 INFO  L226             Difference]: Without dead ends: 7242
[2023-12-25 22:23:02,405 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4791 GetRequests, 4789 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 22:23:02,406 INFO  L413           NwaCegarLoop]: 11420 mSDtfsCounter, 12 mSDsluCounter, 22830 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 34250 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 22:23:02,406 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 34250 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 22:23:02,413 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7242 states.
[2023-12-25 22:23:02,476 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7242 to 7234.
[2023-12-25 22:23:02,484 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7234 states, 7233 states have (on average 1.666528411447532) internal successors, (12054), 7233 states have internal predecessors, (12054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:23:02,494 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7234 states to 7234 states and 12054 transitions.
[2023-12-25 22:23:02,495 INFO  L78                 Accepts]: Start accepts. Automaton has 7234 states and 12054 transitions. Word has length 4792
[2023-12-25 22:23:02,496 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:23:02,496 INFO  L495      AbstractCegarLoop]: Abstraction has 7234 states and 12054 transitions.
[2023-12-25 22:23:02,498 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1198.0) internal successors, (4792), 4 states have internal predecessors, (4792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:23:02,498 INFO  L276                IsEmpty]: Start isEmpty. Operand 7234 states and 12054 transitions.
[2023-12-25 22:23:02,762 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4793
[2023-12-25 22:23:02,762 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:23:02,764 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 22:23:02,821 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 22:23:02,992 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:23:02,993 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:23:02,994 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:23:02,995 INFO  L85        PathProgramCache]: Analyzing trace with hash 2127577132, now seen corresponding path program 1 times
[2023-12-25 22:23:02,995 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:23:02,995 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021436989]
[2023-12-25 22:23:02,996 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:23:02,996 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:23:03,336 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:23:03,336 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [785738176]
[2023-12-25 22:23:03,337 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:23:03,337 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:23:03,337 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:23:03,338 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 22:23:03,363 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 22:23:08,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:23:08,537 INFO  L262         TraceCheckSpWp]: Trace formula consists of 22273 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-25 22:23:08,602 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:23:21,239 INFO  L134       CoverageAnalysis]: Checked inductivity of 256 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 22:23:21,240 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 22:23:21,240 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:23:21,241 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021436989]
[2023-12-25 22:23:21,243 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:23:21,243 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785738176]
[2023-12-25 22:23:21,244 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [785738176] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 22:23:21,244 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 22:23:21,245 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 22:23:21,245 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336420901]
[2023-12-25 22:23:21,245 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:23:21,248 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:23:21,248 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:23:21,250 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:23:21,251 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 22:23:21,251 INFO  L87              Difference]: Start difference. First operand 7234 states and 12054 transitions. Second operand  has 5 states, 5 states have (on average 958.4) internal successors, (4792), 5 states have internal predecessors, (4792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:23:27,161 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:23:27,164 INFO  L93              Difference]: Finished difference Result 20199 states and 33665 transitions.
[2023-12-25 22:23:27,165 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 22:23:27,177 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 958.4) internal successors, (4792), 5 states have internal predecessors, (4792), 0 states have call successors, (0), 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 4792
[2023-12-25 22:23:27,183 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:23:27,201 INFO  L225             Difference]: With dead ends: 20199
[2023-12-25 22:23:27,202 INFO  L226             Difference]: Without dead ends: 13529
[2023-12-25 22:23:27,211 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4793 GetRequests, 4788 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2023-12-25 22:23:27,212 INFO  L413           NwaCegarLoop]: 9682 mSDtfsCounter, 6343 mSDsluCounter, 27662 mSDsCounter, 0 mSdLazyCounter, 8364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6343 SdHoareTripleChecker+Valid, 37344 SdHoareTripleChecker+Invalid, 8364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time
[2023-12-25 22:23:27,212 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6343 Valid, 37344 Invalid, 8364 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 8364 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time]
[2023-12-25 22:23:27,222 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13529 states.
[2023-12-25 22:23:27,351 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13529 to 13519.
[2023-12-25 22:23:27,365 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13519 states, 13518 states have (on average 1.6668146175469745) internal successors, (22532), 13518 states have internal predecessors, (22532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:23:27,383 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13519 states to 13519 states and 22532 transitions.
[2023-12-25 22:23:27,383 INFO  L78                 Accepts]: Start accepts. Automaton has 13519 states and 22532 transitions. Word has length 4792
[2023-12-25 22:23:27,388 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:23:27,388 INFO  L495      AbstractCegarLoop]: Abstraction has 13519 states and 22532 transitions.
[2023-12-25 22:23:27,389 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 958.4) internal successors, (4792), 5 states have internal predecessors, (4792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:23:27,389 INFO  L276                IsEmpty]: Start isEmpty. Operand 13519 states and 22532 transitions.
[2023-12-25 22:23:27,508 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4794
[2023-12-25 22:23:27,509 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:23:27,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 22:23:27,579 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 22:23:27,724 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,SelfDestructingSolverStorable5
[2023-12-25 22:23:27,725 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:23:27,725 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:23:27,726 INFO  L85        PathProgramCache]: Analyzing trace with hash -415378283, now seen corresponding path program 1 times
[2023-12-25 22:23:27,726 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:23:27,726 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909101533]
[2023-12-25 22:23:27,727 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:23:27,727 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:23:28,157 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:23:28,157 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [919709879]
[2023-12-25 22:23:28,158 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:23:28,158 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:23:28,159 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:23:28,160 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 22:23:28,216 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 22:23:33,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:23:33,271 INFO  L262         TraceCheckSpWp]: Trace formula consists of 22276 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-25 22:23:33,331 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:23:33,393 INFO  L134       CoverageAnalysis]: Checked inductivity of 256 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 22:23:33,393 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 22:23:33,393 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:23:33,393 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909101533]
[2023-12-25 22:23:33,394 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:23:33,394 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919709879]
[2023-12-25 22:23:33,394 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [919709879] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 22:23:33,394 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 22:23:33,394 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 22:23:33,394 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79421369]
[2023-12-25 22:23:33,394 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:23:33,397 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:23:33,397 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:23:33,400 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:23:33,400 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 22:23:33,401 INFO  L87              Difference]: Start difference. First operand 13519 states and 22532 transitions. Second operand  has 5 states, 5 states have (on average 958.6) internal successors, (4793), 5 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 22:23:33,647 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:23:33,648 INFO  L93              Difference]: Finished difference Result 39449 states and 65752 transitions.
[2023-12-25 22:23:33,648 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-25 22:23:33,649 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 958.6) internal successors, (4793), 5 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 4793
[2023-12-25 22:23:33,650 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:23:33,688 INFO  L225             Difference]: With dead ends: 39449
[2023-12-25 22:23:33,688 INFO  L226             Difference]: Without dead ends: 26494
[2023-12-25 22:23:33,706 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4795 GetRequests, 4790 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2023-12-25 22:23:33,707 INFO  L413           NwaCegarLoop]: 12143 mSDtfsCounter, 11123 mSDsluCounter, 35688 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11123 SdHoareTripleChecker+Valid, 47831 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 22:23:33,707 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11123 Valid, 47831 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 22:23:33,721 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 26494 states.
[2023-12-25 22:23:34,009 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 26494 to 13523.
[2023-12-25 22:23:34,019 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13523 states, 13522 states have (on average 1.6666173642952227) internal successors, (22536), 13522 states have internal predecessors, (22536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:23:34,034 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13523 states to 13523 states and 22536 transitions.
[2023-12-25 22:23:34,034 INFO  L78                 Accepts]: Start accepts. Automaton has 13523 states and 22536 transitions. Word has length 4793
[2023-12-25 22:23:34,035 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:23:34,035 INFO  L495      AbstractCegarLoop]: Abstraction has 13523 states and 22536 transitions.
[2023-12-25 22:23:34,036 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 958.6) internal successors, (4793), 5 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 22:23:34,036 INFO  L276                IsEmpty]: Start isEmpty. Operand 13523 states and 22536 transitions.
[2023-12-25 22:23:34,156 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4794
[2023-12-25 22:23:34,156 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:23:34,158 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 22:23:34,214 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 22:23:34,375 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:23:34,376 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:23:34,376 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:23:34,377 INFO  L85        PathProgramCache]: Analyzing trace with hash 455837143, now seen corresponding path program 1 times
[2023-12-25 22:23:34,377 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:23:34,377 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445995008]
[2023-12-25 22:23:34,378 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:23:34,378 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:23:34,720 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:23:34,720 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2132416076]
[2023-12-25 22:23:34,721 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:23:34,721 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:23:34,722 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:23:34,722 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 22:23:34,724 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 22:23:39,895 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:23:40,035 INFO  L262         TraceCheckSpWp]: Trace formula consists of 22276 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-25 22:23:40,091 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:23:40,151 INFO  L134       CoverageAnalysis]: Checked inductivity of 256 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 22:23:40,152 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 22:23:40,152 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:23:40,152 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445995008]
[2023-12-25 22:23:40,152 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:23:40,152 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132416076]
[2023-12-25 22:23:40,152 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132416076] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 22:23:40,152 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 22:23:40,152 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 22:23:40,153 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85575221]
[2023-12-25 22:23:40,153 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:23:40,156 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:23:40,156 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:23:40,159 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:23:40,159 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 22:23:40,159 INFO  L87              Difference]: Start difference. First operand 13523 states and 22536 transitions. Second operand  has 5 states, 5 states have (on average 958.6) internal successors, (4793), 5 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 22:23:40,426 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:23:40,426 INFO  L93              Difference]: Finished difference Result 39461 states and 65764 transitions.
[2023-12-25 22:23:40,427 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-12-25 22:23:40,428 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 958.6) internal successors, (4793), 5 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 4793
[2023-12-25 22:23:40,428 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:23:40,458 INFO  L225             Difference]: With dead ends: 39461
[2023-12-25 22:23:40,458 INFO  L226             Difference]: Without dead ends: 26502
[2023-12-25 22:23:40,476 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4795 GetRequests, 4790 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2023-12-25 22:23:40,477 INFO  L413           NwaCegarLoop]: 12234 mSDtfsCounter, 11123 mSDsluCounter, 35870 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11123 SdHoareTripleChecker+Valid, 48104 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 22:23:40,477 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11123 Valid, 48104 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 22:23:40,493 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 26502 states.
[2023-12-25 22:23:40,643 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 26502 to 13527.
[2023-12-25 22:23:40,654 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13527 states, 13526 states have (on average 1.6664202277095963) internal successors, (22540), 13526 states have internal predecessors, (22540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:23:40,669 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13527 states to 13527 states and 22540 transitions.
[2023-12-25 22:23:40,670 INFO  L78                 Accepts]: Start accepts. Automaton has 13527 states and 22540 transitions. Word has length 4793
[2023-12-25 22:23:40,670 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:23:40,670 INFO  L495      AbstractCegarLoop]: Abstraction has 13527 states and 22540 transitions.
[2023-12-25 22:23:40,671 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 958.6) internal successors, (4793), 5 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 22:23:40,671 INFO  L276                IsEmpty]: Start isEmpty. Operand 13527 states and 22540 transitions.
[2023-12-25 22:23:40,892 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4794
[2023-12-25 22:23:40,892 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:23:40,894 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 22:23:40,964 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-12-25 22:23:41,101 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:23:41,101 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:23:41,102 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:23:41,103 INFO  L85        PathProgramCache]: Analyzing trace with hash -793413991, now seen corresponding path program 1 times
[2023-12-25 22:23:41,103 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:23:41,103 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136058447]
[2023-12-25 22:23:41,103 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:23:41,104 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:23:41,493 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:23:41,493 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378305393]
[2023-12-25 22:23:41,494 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:23:41,494 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:23:41,497 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:23:41,497 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 22:23:41,520 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 22:23:46,465 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:23:46,601 INFO  L262         TraceCheckSpWp]: Trace formula consists of 22276 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 22:23:46,813 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:23:47,414 INFO  L134       CoverageAnalysis]: Checked inductivity of 256 backedges. 4 proven. 252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 22:23:47,414 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 22:23:47,493 INFO  L134       CoverageAnalysis]: Checked inductivity of 256 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked.
[2023-12-25 22:23:47,494 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:23:47,494 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136058447]
[2023-12-25 22:23:47,494 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:23:47,494 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378305393]
[2023-12-25 22:23:47,494 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378305393] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 22:23:47,494 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 22:23:47,495 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12
[2023-12-25 22:23:47,495 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11595916]
[2023-12-25 22:23:47,495 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 22:23:47,499 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 22:23:47,499 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:23:47,502 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 22:23:47,502 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132
[2023-12-25 22:23:47,503 INFO  L87              Difference]: Start difference. First operand 13527 states and 22540 transitions. Second operand  has 5 states, 5 states have (on average 908.8) internal successors, (4544), 5 states have internal predecessors, (4544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:23:47,875 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 22:23:47,876 INFO  L93              Difference]: Finished difference Result 33532 states and 55878 transitions.
[2023-12-25 22:23:47,876 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 22:23:47,877 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 908.8) internal successors, (4544), 5 states have internal predecessors, (4544), 0 states have call successors, (0), 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 4793
[2023-12-25 22:23:47,882 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 22:23:47,902 INFO  L225             Difference]: With dead ends: 33532
[2023-12-25 22:23:47,902 INFO  L226             Difference]: Without dead ends: 20569
[2023-12-25 22:23:47,918 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9584 GetRequests, 9574 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132
[2023-12-25 22:23:47,920 INFO  L413           NwaCegarLoop]: 33621 mSDtfsCounter, 22199 mSDsluCounter, 78637 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22199 SdHoareTripleChecker+Valid, 112258 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 22:23:47,920 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [22199 Valid, 112258 Invalid, 38 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 22:23:47,932 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20569 states.
[2023-12-25 22:23:48,082 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20569 to 13521.
[2023-12-25 22:23:48,098 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13521 states, 13520 states have (on average 1.666346153846154) internal successors, (22529), 13520 states have internal predecessors, (22529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:23:48,113 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13521 states to 13521 states and 22529 transitions.
[2023-12-25 22:23:48,114 INFO  L78                 Accepts]: Start accepts. Automaton has 13521 states and 22529 transitions. Word has length 4793
[2023-12-25 22:23:48,117 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 22:23:48,117 INFO  L495      AbstractCegarLoop]: Abstraction has 13521 states and 22529 transitions.
[2023-12-25 22:23:48,118 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 908.8) internal successors, (4544), 5 states have internal predecessors, (4544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:23:48,119 INFO  L276                IsEmpty]: Start isEmpty. Operand 13521 states and 22529 transitions.
[2023-12-25 22:23:48,320 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4795
[2023-12-25 22:23:48,321 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 22:23:48,323 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-25 22:23:48,388 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 22:23:48,548 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:23:48,548 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 22:23:48,549 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 22:23:48,550 INFO  L85        PathProgramCache]: Analyzing trace with hash -1521088201, now seen corresponding path program 1 times
[2023-12-25 22:23:48,550 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 22:23:48,550 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008828813]
[2023-12-25 22:23:48,550 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:23:48,551 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 22:23:48,890 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 22:23:48,890 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [149289833]
[2023-12-25 22:23:48,891 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 22:23:48,891 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:23:48,891 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 22:23:48,892 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 22:23:48,916 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 22:23:54,289 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 22:23:54,435 INFO  L262         TraceCheckSpWp]: Trace formula consists of 22279 conjuncts, 300 conjunts are in the unsatisfiable core
[2023-12-25 22:23:54,639 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 22:24:18,893 INFO  L134       CoverageAnalysis]: Checked inductivity of 257 backedges. 4 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 22:24:18,893 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 22:24:55,944 INFO  L134       CoverageAnalysis]: Checked inductivity of 257 backedges. 126 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 22:24:55,944 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 22:24:55,945 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008828813]
[2023-12-25 22:24:55,945 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 22:24:55,945 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149289833]
[2023-12-25 22:24:55,945 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [149289833] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-25 22:24:55,945 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-25 22:24:55,946 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [117, 60] total 173
[2023-12-25 22:24:55,946 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083351169]
[2023-12-25 22:24:55,946 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-25 22:24:55,956 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 173 states
[2023-12-25 22:24:55,956 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 22:24:55,966 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 173 interpolants.
[2023-12-25 22:24:55,972 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=2673, Invalid=27083, Unknown=0, NotChecked=0, Total=29756
[2023-12-25 22:24:55,975 INFO  L87              Difference]: Start difference. First operand 13521 states and 22529 transitions. Second operand  has 173 states, 173 states have (on average 53.68208092485549) internal successors, (9287), 173 states have internal predecessors, (9287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 22:25:08,347 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:25:12,987 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:25:17,214 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:25:22,518 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:25:23,595 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:25:29,440 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:25:33,453 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:25:37,466 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:25:41,476 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:25:45,493 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:25:46,584 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:25:50,799 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:25:54,810 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:25:56,852 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:26:01,445 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:26:04,401 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:26:08,227 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.60s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:26:12,237 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:26:16,248 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:26:20,259 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:26:24,993 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:26:28,244 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:26:32,225 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:26:36,233 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:26:40,243 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:26:44,249 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:26:48,270 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:26:52,287 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:26:56,471 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:27:01,172 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:27:05,184 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:27:09,504 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:27:11,478 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:27:14,126 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:27:18,262 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:27:22,276 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:27:25,359 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:27:26,750 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:27:30,807 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:27:35,464 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:27:39,636 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:27:43,652 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:27:47,658 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:27:50,182 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:27:55,508 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:27:59,525 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:28:03,536 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:28:06,398 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:28:08,234 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:28:12,325 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:28:16,334 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:28:18,316 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:28:22,588 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:28:23,809 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:28:27,281 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:28:32,210 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:28:33,591 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:28:37,806 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:28:41,536 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:28:45,722 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:28:50,196 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:28:53,774 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:28:56,608 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:01,050 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:02,765 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:06,772 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:07,800 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:12,330 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:16,346 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:20,359 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:24,368 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:28,385 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:32,394 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:36,408 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:40,382 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:42,186 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:44,373 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:48,431 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:51,625 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:55,421 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:29:58,412 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:30:00,967 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:30:05,436 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:30:08,087 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:30:11,729 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:30:13,940 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:30:19,759 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:30:23,434 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:30:25,387 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:30:34,151 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:30:41,347 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 22:34:30,322 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101
[2023-12-25 22:34:30,322 WARN  L249               Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory")

[2023-12-25 22:34:30,323 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 525 states. 
[2023-12-25 22:34:30,344 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10100 GetRequests, 9415 SyntacticMatches, 0 SemanticMatches, 684 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135577 ImplicationChecksByTransitivity, 148.1s TimeCoverageRelationStatistics Valid=48342, Invalid=421568, Unknown=0, NotChecked=0, Total=469910
[2023-12-25 22:34:30,345 INFO  L413           NwaCegarLoop]: 9066 mSDtfsCounter, 438178 mSDsluCounter, 867373 mSDsCounter, 0 mSdLazyCounter, 172319 mSolverCounterSat, 131 mSolverCounterUnsat, 51 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 407.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438178 SdHoareTripleChecker+Valid, 876439 SdHoareTripleChecker+Invalid, 172501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.8s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 172319 IncrementalHoareTripleChecker+Invalid, 51 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 418.5s IncrementalHoareTripleChecker+Time
[2023-12-25 22:34:30,345 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [438178 Valid, 876439 Invalid, 172501 Unknown, 0 Unchecked, 1.8s Time], IncrementalHoareTripleChecker [131 Valid, 172319 Invalid, 51 Unknown, 0 Unchecked, 418.5s Time]
[2023-12-25 22:34:30,424 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-12-25 22:34:30,572 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 22:34:30,573 FATAL L?                        ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")

	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281)
	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155)
	at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163)
	at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163)
	at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:915)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.<init>(PredicateUnifier.java:789)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:377)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:247)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1)
	at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:246)
	at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121)
	at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218)
	at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:210)
	at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058)
	at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.<init>(NestedWordAutomatonReachableStates.java:960)
	at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.<init>(NestedWordAutomatonReachableStates.java:182)
	at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137)
	at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.<init>(Difference.java:90)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:353)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:325)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:155)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF
	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518)
	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701)
	at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383)
	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258)
	... 47 more
[2023-12-25 22:34:30,576 INFO  L158              Benchmark]: Toolchain (without parser) took 737375.69ms. Allocated memory was 185.6MB in the beginning and 4.7GB in the end (delta: 4.5GB). Free memory was 114.9MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB.
[2023-12-25 22:34:30,576 INFO  L158              Benchmark]: CDTParser took 0.09ms. Allocated memory is still 185.6MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-25 22:34:30,576 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1283.39ms. Allocated memory was 185.6MB in the beginning and 474.0MB in the end (delta: 288.4MB). Free memory was 114.6MB in the beginning and 311.7MB in the end (delta: -197.1MB). Peak memory consumption was 154.5MB. Max. memory is 8.0GB.
[2023-12-25 22:34:30,576 INFO  L158              Benchmark]: Boogie Procedure Inliner took 2603.76ms. Allocated memory was 474.0MB in the beginning and 2.8GB in the end (delta: 2.3GB). Free memory was 311.7MB in the beginning and 2.3GB in the end (delta: -2.0GB). Peak memory consumption was 413.1MB. Max. memory is 8.0GB.
[2023-12-25 22:34:30,576 INFO  L158              Benchmark]: Boogie Preprocessor took 2891.95ms. Allocated memory is still 2.8GB. Free memory was 2.3GB in the beginning and 2.1GB in the end (delta: 182.5MB). Peak memory consumption was 252.7MB. Max. memory is 8.0GB.
[2023-12-25 22:34:30,577 INFO  L158              Benchmark]: RCFGBuilder took 21384.07ms. Allocated memory was 2.8GB in the beginning and 4.7GB in the end (delta: 1.9GB). Free memory was 2.1GB in the beginning and 3.9GB in the end (delta: -1.8GB). Peak memory consumption was 795.3MB. Max. memory is 8.0GB.
[2023-12-25 22:34:30,577 INFO  L158              Benchmark]: TraceAbstraction took 709206.22ms. Allocated memory is still 4.7GB. Free memory was 3.9GB in the beginning and 1.9GB in the end (delta: 2.0GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB.
[2023-12-25 22:34:30,578 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.09ms. Allocated memory is still 185.6MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 1283.39ms. Allocated memory was 185.6MB in the beginning and 474.0MB in the end (delta: 288.4MB). Free memory was 114.6MB in the beginning and 311.7MB in the end (delta: -197.1MB). Peak memory consumption was 154.5MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 2603.76ms. Allocated memory was 474.0MB in the beginning and 2.8GB in the end (delta: 2.3GB). Free memory was 311.7MB in the beginning and 2.3GB in the end (delta: -2.0GB). Peak memory consumption was 413.1MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 2891.95ms. Allocated memory is still 2.8GB. Free memory was 2.3GB in the beginning and 2.1GB in the end (delta: 182.5MB). Peak memory consumption was 252.7MB. Max. memory is 8.0GB.
 * RCFGBuilder took 21384.07ms. Allocated memory was 2.8GB in the beginning and 4.7GB in the end (delta: 1.9GB). Free memory was 2.1GB in the beginning and 3.9GB in the end (delta: -1.8GB). Peak memory consumption was 795.3MB. Max. memory is 8.0GB.
 * TraceAbstraction took 709206.22ms. Allocated memory is still 4.7GB. Free memory was 3.9GB in the beginning and 1.9GB in the end (delta: 2.0GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")

    de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...